List of Contributors |
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xx | |
Preface |
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xxiii | |
Acknowledgements |
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xxiv | |
1 Introduction |
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1 | (15) |
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1 | (2) |
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1.2 Reasons why this synthesis is important |
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3 | (4) |
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1.3 Estuary definition and types |
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7 | (2) |
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9 | (2) |
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11 | (1) |
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12 | (4) |
2 Fish Assemblages and Functional Groups |
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16 | (44) |
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16 | (1) |
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2.2 Zoogeography, salinity and estuarine fish assemblages |
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16 | (8) |
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2.3 Estuarine typology and fish assemblages |
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24 | (4) |
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2.4 Fish guilds and functional groups |
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28 | (19) |
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2.4.1 Estuarine Use Functional Group (EUFG) |
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32 | (6) |
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2.4.2 Feeding Mode Functional Group (FMFG) |
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38 | (6) |
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2.4.3 Reproductive Mode Functional Group (R MFG) |
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44 | (3) |
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2.5 Do functional groups drive fish assemblage structure? |
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47 | (1) |
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2.6 Fish functional groups and guild analyses |
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47 | (2) |
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49 | (1) |
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49 | (11) |
3 Reproduction, Ontogeny and Recruitment |
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60 | (128) |
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60 | (3) |
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3.1.1 Scope of the chapter |
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62 | (1) |
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3.2 Estuarine support of reproduction and recruitment |
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63 | (19) |
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3.2.1 Replenishment: modes and patterns |
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63 | (13) |
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3.2.1.1 Modes of reproduction |
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64 | (6) |
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3.2.1.2 Early-life stages and nurseries |
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70 | (6) |
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3.2.2 Sources of variability in reproductive success and recruitment |
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76 | (6) |
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3.2.2.1 Habitat and water quality |
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76 | (1) |
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3.2.2.2 Hydrography and physics |
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77 | (1) |
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3.2.2.3 Foods of early-life stages |
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77 | (1) |
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78 | (1) |
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3.2.2.5 Weather, climate and estuarine change |
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79 | (3) |
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3.3 Early-life stages and recruitment dynamics |
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82 | (31) |
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3.3.1 Dispersal, transport and retention |
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84 | (11) |
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3.3.1.1 Offshore to estuary transport processes |
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85 | (1) |
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3.3.1.2 Swimming as a transport mechanism |
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85 | (2) |
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3.3.1.3 Near- and within-estuary transport processes |
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87 | (2) |
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3.3.1.4 Retention: estuarine features and processes |
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89 | (6) |
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95 | (2) |
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3.3.3 Larval and juvenile production processes |
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97 | (7) |
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97 | (7) |
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3.3.4 Larval and juvenile production: growth and mortality |
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104 | (9) |
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3.3.4.1 Rates and variability |
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106 | (3) |
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109 | (1) |
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3.3.4.3 Environmental factors |
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110 | (3) |
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3.4 Adults and recruitment |
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113 | (12) |
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113 | (3) |
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3.4.1.1 Stock structure, contingents and cohorts |
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114 | (1) |
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115 | (1) |
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3.4.2 Scales and patterns of variability in reproductive success |
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116 | (8) |
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3.4.2.1 Recruitment levels and variability |
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116 | (1) |
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3.4.2.2 Adult stock and recruitment |
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117 | (4) |
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3.4.2.3 Predicting and forecasting recruitment |
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121 | (3) |
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3.4.3 Recruitment: an integrated, evolved process |
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124 | (1) |
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3.5 Threats to reproduction and recruitment in estuaries |
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125 | (5) |
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3.5.1 Excessive fishing: depletion of adults and by-catch of juveniles |
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125 | (1) |
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3.5.2 Habitat destruction and degradation |
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125 | (1) |
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3.5.3 Impoundments and flow regulation |
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126 | (1) |
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127 | (1) |
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3.5.5 Estuary contaminants: water quality degradation |
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127 | (1) |
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128 | (1) |
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129 | (1) |
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3.5.8 Catastrophic events |
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130 | (1) |
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130 | (13) |
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130 | (4) |
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134 | (1) |
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3.6.3 Anchoa mitchilli (Engraulidae) |
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135 | (1) |
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3.6.4 Brevoortia tyrannus and Brevoortia spp. (Clupeidae) |
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136 | (1) |
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3.6.5 Morone saxatilis (Moronidae) |
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137 | (2) |
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3.6.6 Gadidae and Clupeidae (Baltic Sea) |
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139 | (2) |
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3.6.7 Lateolabrax japonicus (Lateolabracidae) |
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141 | (1) |
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3.6.8 Fundulus heteroclitus (Fundulidae) |
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141 | (2) |
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3.7 Summary and conclusions |
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143 | (2) |
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145 | (1) |
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145 | (43) |
4 Habitat Use and Connectivity |
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188 | (67) |
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188 | (2) |
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190 | (11) |
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4.2.1 Water column habitat |
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191 | (1) |
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4.2.2 Unstructured shallow habitats |
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192 | (1) |
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4.2.3 Structured benthic habitats |
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193 | (15) |
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193 | (3) |
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4.2.3.2 Submerged aquatic vegetation |
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196 | (1) |
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197 | (2) |
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199 | (1) |
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200 | (1) |
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4.2.3.6 Rocky and gravel bottoms |
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200 | (1) |
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4.3 Geomorphological and hydrological variables |
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201 | (1) |
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4.4 Physicochemical variables |
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202 | (6) |
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4.5 Dynamics of juvenile habitat use |
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208 | (6) |
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4.5.1 Temperature effects |
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208 | (1) |
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209 | (1) |
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4.5.3 Settlement habitats |
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210 | (1) |
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4.5.4 Connectivity among estuarine habitats |
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211 | (2) |
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213 | (1) |
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214 | (2) |
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4.7 Habitat fidelity by juveniles and adult fishes |
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216 | (2) |
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218 | (2) |
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4.9 Connectivity between estuarine, freshwater and marine ecosystems |
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220 | (7) |
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4.9.1 Migrations into estuaries |
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221 | (2) |
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4.9.2 Migrations out of estuaries |
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223 | (2) |
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4.9.3 Migrations between estuaries |
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225 | (2) |
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227 | (1) |
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227 | (1) |
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227 | (28) |
5 Feeding Ecology and Trophic Dynamics |
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255 | (77) |
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255 | (1) |
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5.2 Fish foraging behaviour and food intake |
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256 | (5) |
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256 | (2) |
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5.2.2 Feeding periodicity |
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258 | (1) |
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258 | (1) |
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5.2.4 Feeding movements and migrations |
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259 | (2) |
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5.3 Factors influencing feeding ecology |
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261 | (7) |
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5.3.1 Environmental factors |
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262 | (1) |
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5.3.1.1 Water temperature, salinity and dissolved oxygen |
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262 | (1) |
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5.3.1.2 Tidal regime and substratum composition |
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263 | (1) |
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263 | (2) |
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263 | (1) |
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5.3.2.2 Ontogenetic changes in fish diets |
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264 | (1) |
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5.3.3 Foraging specialisations |
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265 | (2) |
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5.3.4 Opportunistic versus specialised feeding |
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267 | (1) |
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268 | (2) |
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5.5 Trophic categorization |
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270 | (12) |
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5.5.1 Herbivorous species |
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272 | (2) |
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5.5.2 Detritivorous species |
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274 | (1) |
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5.5.3 Zoobenthivorous species |
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275 | (1) |
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5.5.4 Zooplankivorous species |
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276 | (2) |
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5.5.5 Piscivorous species |
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278 | (4) |
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280 | (2) |
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5.6 Competition, resource partitioning, energy flow and connectivity |
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282 | (8) |
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5.6.1 Intra-specific and inter-specific competition |
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282 | (1) |
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5.6.2 Resource partitioning |
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283 | (2) |
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5.6.3 Energy flow and connectivity |
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285 | (5) |
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5.7 FishBase approach to Functional Feeding Groups |
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290 | (2) |
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5.7.1 Example of an FFG analysis |
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291 | (1) |
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5.8 Fish food sources in estuaries |
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292 | (3) |
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5.8.1 Submerged macrophyte habitats |
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293 | (1) |
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5.8.2 Emergent macrophyte habitats |
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294 | (1) |
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295 | (8) |
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5.9.1 Vertical and horizontal feeding patterns by fishes |
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301 | (2) |
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5.10 Predators of fish in estuaries |
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303 | (5) |
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305 | (1) |
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305 | (2) |
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307 | (1) |
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307 | (1) |
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5.11 Effects of natural and anthropogenic perturbations on food webs |
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308 | (4) |
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312 | (1) |
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312 | (20) |
6 Fishes and Estuarine Environmental Health |
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332 | (48) |
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6.1 Estuarine environmental health: concepts, definitions and assessment |
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332 | (2) |
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6.2 Anthropogenic pressures impacting estuarine fish assemblages |
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334 | (4) |
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6.2.1 Habitat loss and physical degradation |
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334 | (1) |
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335 | (1) |
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6.2.3 River flow regulation |
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336 | (1) |
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6.2.4 Fisheries and aquaculture |
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336 | (1) |
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6.2.5 Non-indigenous species |
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337 | (1) |
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338 | (1) |
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6.2.7 Integration of human pressures: the global change context |
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338 | (1) |
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6.3 Fish biomarkers responding to human pressures |
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338 | (6) |
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6.3.1 Bioaccumulation and biomagnification |
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339 | (2) |
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6.3.2 Biomarkers of exposure |
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341 | (3) |
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6.4 Fishes as biological indicators |
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344 | (5) |
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6.5 Main methodological approaches to assess estuarine health using fish as indicators |
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349 | (4) |
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6.5.1 Historical data and reference conditions |
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349 | (1) |
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6.5.2 Experimental approaches |
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349 | (1) |
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6.5.3 Environmental impact assessment and other risk assessment methods |
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350 | (2) |
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6.5.4 Qualitative methods |
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352 | (1) |
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6.5.5 Quantitative indicators |
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352 | (1) |
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352 | (1) |
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6.6 Environmental health fish-based indices |
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353 | (5) |
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6.7 Disentangling fish responses in the multi-stress context of global changes |
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358 | (3) |
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6.7.1 Univariate approaches |
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359 | (1) |
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6.7.2 Multivariate approaches |
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360 | (1) |
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6.8 Future research directions |
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361 | (2) |
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363 | (17) |
7 Climate Change and Fishes in Estuaries |
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380 | (78) |
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380 | (1) |
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7.2 Global, regional and local patterns |
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381 | (11) |
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7.2.1 Predictors of fish taxonomic diversity at global and regional scales |
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383 | (2) |
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7.2.2 Predictors of fish taxonomic diversity at local scales |
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385 | (4) |
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7.2.3 Predictors of fish functional diversity at global, regional and local scales |
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389 | (3) |
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7.3 Potential impacts of environmental/climate stressors on estuarine fish |
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392 | (15) |
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7.3.1 Salinity and freshwater flow impacts |
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392 | (4) |
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7.3.2 Temperature impacts |
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396 | (1) |
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7.3.3 Dissolved oxygen impacts |
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397 | (4) |
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7.3.4 Impacts of elevated CO2 |
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401 | (2) |
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403 | (1) |
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7.3.6 Estuary entrance channel openings and fish access |
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404 | (2) |
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406 | (1) |
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7.4 Climate change and fisheries in estuaries |
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407 | (5) |
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7.4.1 Links to fisheries catches |
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407 | (4) |
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7.4.2 Socio-economic effects and management implications |
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411 | (1) |
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412 | (17) |
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412 | (1) |
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7.5.2 Temperate northern Atlantic |
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413 | (2) |
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7.5.3 Temperate northern Pacific |
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415 | (2) |
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417 | (1) |
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418 | (3) |
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7.5.6 Temperate South America |
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421 | (3) |
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7.5.7 Temperate southern Africa |
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424 | (3) |
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7.5.8 Temperate Australia |
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427 | (2) |
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7.6 Gaps in knowledge and future research directions |
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429 | (3) |
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432 | (1) |
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432 | (26) |
8 Estuarine Degradation and Rehabilitation |
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458 | (95) |
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458 | (17) |
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8.1.1 Hazards and risks to estuarine fish and fisheries and their habitats |
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458 | (8) |
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8.1.2 Effects of climate change on estuarine fish and fisheries |
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466 | (1) |
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8.1.3 Effects of estuarine degradation on ecosystem services |
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467 | (1) |
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8.1.4 Effects of estuarine degradation on water quality and impacts on fish |
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468 | (1) |
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469 | (3) |
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472 | (1) |
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8.1.7 Pharmaceutical and personal care products |
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473 | (1) |
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473 | (1) |
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8.1.9 Effects on water quantity, hydropeak and flow alteration on fish |
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474 | (1) |
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8.1.10 Effects of fishing |
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475 | (1) |
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8.2 Estuarine restoration and habitat creation |
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475 | (6) |
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481 | (5) |
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8.4 Ecological engineering |
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486 | (2) |
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8.5 Contribution of modelling tools to more process-based restoration objectives |
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488 | (4) |
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488 | (1) |
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489 | (3) |
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8.5.2.1 Towards a more process-oriented approach |
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489 | (1) |
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8.5.2.2 Towards integrated objectives |
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489 | (3) |
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8.6 Why modelling processes? |
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492 | (2) |
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492 | (1) |
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8.6.2 Species use of the estuarine environment and compartmental interactions |
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493 | (1) |
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493 | (1) |
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494 | (7) |
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8.7.1 Biogeochemical modelling |
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494 | (5) |
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8.7.2 Hydromorphological sedimentary modelling |
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499 | (2) |
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8.7.2.1 Modelling vegetation-sediment interactions |
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499 | (1) |
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8.7.2.2 Modelling formation and dynamics of tidal channels |
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500 | (1) |
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8.7.2.3 Modelling biological impacts on sedimentary dynamics |
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500 | (1) |
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501 | (3) |
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8.8.1 'Static' approaches: statistical habitat suitability |
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502 | (1) |
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8.8.2 Dynamic approach: the probability to attain suitable habitats |
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503 | (1) |
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504 | (1) |
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8.10 The path to effective ecological restoration |
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505 | (2) |
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8.11 From theory to practice |
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507 | (20) |
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8.11.1 A case study of restoration in the Scheldt Estuary |
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507 | (4) |
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8.11.2 Ecological restoration by opportunity: an example from the Gironde Estuary |
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511 | (7) |
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8.11.2.1 Gironde restoration summary |
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518 | (1) |
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8.11.3 Case study - restoration of former salt hay farms |
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518 | (2) |
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8.11.4 Case study - habitat alteration and restoration linked to a common reed invasion |
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520 | (3) |
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8.11.5 Restoration of whole estuaries and wetland systems |
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523 | (4) |
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527 | (2) |
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529 | (1) |
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529 | (24) |
9 Estuarine Fisheries |
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553 | (64) |
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553 | (1) |
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9.2 Estuarine fishery sectors |
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554 | (2) |
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9.3 Problems and issues in estuarine fisheries |
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556 | (2) |
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558 | (3) |
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9.5 Estuarine fisheries: a selection of case studies |
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561 | (24) |
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562 | (5) |
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9.5.1.1 The Hilsa fishery, South Asia |
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562 | (3) |
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9.5.1.2 The Lake Chilika fishery, India |
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565 | (1) |
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9.5.1.3 The Pichavaram fishery, India |
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565 | (1) |
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9.5.1.4 The Larut-Matang fishery, Malaysia |
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566 | (1) |
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567 | (6) |
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9.5.2.1 The Kosi Bay Lakes fishery, South Africa |
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568 | (2) |
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9.5.2.2 The Sundays Estuary fishery, South Africa |
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570 | (1) |
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9.5.2.3 The Ebrie Lagoon fishery, Ivory Coast |
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571 | (2) |
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9.5.3 South and Central American fisheries |
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573 | (2) |
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9.5.3.1 The Gulf of Nicoya fishery, Costa Rica |
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573 | (1) |
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9.5.3.2 The Cienaga Grande de Santa Marta fishery, Colombia |
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574 | (1) |
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9.5.3.3 The fisheries of Lake Maracaibo, Venezuela |
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574 | (1) |
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9.5.3.4 The Valenca Delta fishery, Brazil |
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574 | (1) |
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9.5.4 Australasian fisheries |
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575 | (3) |
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9.5.4.1 Lates cakarifer fisheries of Australia and Papua New Guinea |
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576 | (2) |
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9.5.5 European and North American fisheries |
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578 | (7) |
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9.6 The main fishery species in Europe and North America |
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585 | (13) |
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586 | (5) |
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9.6.1.1 Anguilla anguilla |
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586 | (2) |
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9.6.1.2 Anguilla rostrata |
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588 | (1) |
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9.6.1.3 Platichthys flesus |
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588 | (1) |
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9.6.1.4 Alosa sapidissima |
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588 | (1) |
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9.6.1.5 Alosa pseudoharengus |
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589 | (1) |
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589 | (1) |
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9.6.1.7 Osmerus eperlanus |
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590 | (1) |
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590 | (1) |
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590 | (1) |
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9.6.2 Marine seasonal migrants as adults |
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591 | (3) |
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9.6.2.1 Brevoortia tyrannus |
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591 | (1) |
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9.6.2.2 Pseudopleuronectes americanus |
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591 | (1) |
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9.6.2.3 Paralichthys dentatus |
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592 | (1) |
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9.6.2.4 Cynoscion regalis |
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593 | (1) |
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9.6.2.5 Sprattus sprattus |
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593 | (1) |
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593 | (1) |
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9.6.3 Marine migrants as juveniles |
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594 | (3) |
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594 | (1) |
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9.6.3.2 Dicentrarchus labrax |
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594 | (1) |
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594 | (1) |
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9.6.3.4 Trisopterus luscus |
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595 | (1) |
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9.6.3.5 Merlangius merlangus |
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595 | (1) |
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595 | (1) |
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595 | (1) |
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9.6.3.8 Pleuronectes platessa |
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595 | (1) |
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596 | (1) |
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9.6.4 Estuarine-resident species |
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|
597 | (21) |
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597 | (1) |
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|
598 | (4) |
|
|
602 | (1) |
|
|
602 | (1) |
|
|
602 | (15) |
10 Conservation of Estuarine Fishes |
|
617 | (67) |
|
|
|
|
|
617 | (1) |
|
10.2 Analysis of threats to estuarine fish conservation |
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|
618 | (15) |
|
|
620 | (2) |
|
10.2.2 Habitat alteration or loss |
|
|
622 | (2) |
|
10.2.3 Water quality and quantity alterations |
|
|
624 | (2) |
|
|
626 | (5) |
|
10.2.4.1 Changes in salinity regime |
|
|
628 | (2) |
|
10.2.4.2 Changes in water temperature |
|
|
630 | (1) |
|
10.2.4.3 Synergistic effects of climate change and eutrophication |
|
|
630 | (1) |
|
10.2.4.4 Influence of habitat |
|
|
631 | (1) |
|
10.2.4.5 Vulnerability of microtidal estuaries in Mediterranean climates to climate change |
|
|
631 | (1) |
|
10.2.5 Non-native species |
|
|
631 | (2) |
|
10.3 Conservation interventions and instruments |
|
|
633 | (20) |
|
10.3.1 Legislative frameworks |
|
|
633 | (8) |
|
10.3.1.1 International initiatives |
|
|
634 | (4) |
|
10.3.1.2 Regional initiatives |
|
|
638 | (1) |
|
10.3.1.3 National initiatives |
|
|
639 | (1) |
|
10.3.1.4 Environmental non-government organisations |
|
|
640 | (1) |
|
10.3.2 Role of protected areas |
|
|
641 | (4) |
|
10.3.3 Rehabilitation and habitat restoration |
|
|
645 | (5) |
|
10.3.4 Catchment conservation |
|
|
650 | (3) |
|
10.3.5 Captive breeding and stocking |
|
|
653 | (1) |
|
10.4 Threatened species and extinction risk: some case studies |
|
|
653 | (5) |
|
10.4.1 Estuarine pipefish Syngnathus watermeyeri |
|
|
653 | (1) |
|
10.4.2 Ganges shark Glyphis gangeticus |
|
|
654 | (1) |
|
10.4.3 Totoaba Totoaba macdonaldi |
|
|
655 | (1) |
|
10.4.4 European eel Anguilla anguilla |
|
|
656 | (1) |
|
10.4.5 Cape stumpnose Rhabdosargus holubi |
|
|
657 | (1) |
|
10.5 Current and future challenges |
|
|
658 | (4) |
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|
662 | (1) |
|
10.7 Acknowledgements and dedication |
|
|
663 | (1) |
|
|
663 | (21) |
11 Non-native Fishes in Estuaries |
|
684 | (22) |
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|
684 | (1) |
|
11.2 What conditions favor non-native species in estuaries? |
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|
685 | (7) |
|
|
685 | (1) |
|
11.2.2 San Francisco Estuary |
|
|
685 | (4) |
|
|
689 | (1) |
|
|
690 | (1) |
|
|
690 | (1) |
|
11.2.6 South African estuaries |
|
|
691 | (1) |
|
|
691 | (1) |
|
11.3 What are the characteristics of successful non-native estuarine fishes? |
|
|
692 | (4) |
|
11.3.1 General characteristics |
|
|
692 | (1) |
|
|
692 | (3) |
|
11.3.3 Mode of introduction |
|
|
695 | (1) |
|
11.4 Do non-native species become integrated into the biota of estuaries? |
|
|
696 | (3) |
|
11.4.1 Alternatives for invaders |
|
|
696 | (1) |
|
11.4.2 Novel species, novel ecosystems |
|
|
697 | (2) |
|
|
699 | (1) |
|
11.5 How should non-native species in estuaries be managed? |
|
|
699 | (1) |
|
11.6 How do non-native fishes fit into estuarine ecosystems? |
|
|
700 | (1) |
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|
701 | (1) |
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|
701 | (1) |
|
|
701 | (5) |
12 Management of Fishes and Fisheries in Estuaries |
|
706 | (92) |
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|
|
|
|
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|
706 | (2) |
|
12.2 Management background, aims and philosophies |
|
|
708 | (20) |
|
12.2.1 Background and basis for management |
|
|
708 | (6) |
|
12.2.2 Environmental Quality Objectives and sustainable management |
|
|
714 | (2) |
|
12.2.2.1 Indicators and monitoring as tools in management |
|
|
716 | (1) |
|
12.2.3 Information for estuarine management |
|
|
716 | (8) |
|
12.2.3.1 Information needs and communicating management issues |
|
|
716 | (5) |
|
12.2.3.2 Information and data production, use and dissemination |
|
|
721 | (3) |
|
12.2.4 Case studies of priority issues for estuarine management |
|
|
724 | (4) |
|
|
724 | (2) |
|
12.2.4.2 Humber Estuary (UK) |
|
|
726 | (1) |
|
12.2.4.3 United States of America |
|
|
727 | (1) |
|
12.3 Management of activities and habitats, monitoring and surveillance |
|
|
728 | (12) |
|
12.3.1 Estuarine environmental management |
|
|
728 | (1) |
|
12.3.2 Monitoring of activities for management |
|
|
729 | (1) |
|
12.3.3 Licensing of plans and projects |
|
|
729 | (5) |
|
12.3.4 Cumulative effects assessment |
|
|
734 | (2) |
|
12.3.5 Management of recreational fishing |
|
|
736 | (3) |
|
12.3.6 Management of habitats |
|
|
739 | (1) |
|
12.3.6.1 Management of loss and gain of estuarine habitats |
|
|
739 | (1) |
|
12.4 Management approaches at whole catchment and estuary level |
|
|
740 | (16) |
|
12.4.1 Management of catchments |
|
|
740 | (2) |
|
12.4.2 Whole estuary management approaches |
|
|
742 | (4) |
|
12.4.3 Determining if estuarine management is successful |
|
|
746 | (2) |
|
12.4.4 Estuarine management: holistic case studies |
|
|
748 | (8) |
|
|
748 | (2) |
|
|
750 | (1) |
|
|
751 | (3) |
|
12.4.4.4 Eastern United States of America |
|
|
754 | (1) |
|
12.4.4.5 Western United States of America |
|
|
755 | (1) |
|
12.4.4.6 Eastern England, United Kingdom |
|
|
755 | (1) |
|
12.5 Management of species and stocks/fisheries |
|
|
756 | (10) |
|
|
756 | (1) |
|
12.5.2 Management of fishing technologies |
|
|
757 | (1) |
|
12.5.3 Management of species and stocks case studies |
|
|
758 | (8) |
|
|
758 | (2) |
|
|
760 | (2) |
|
|
762 | (3) |
|
12.5.3.4 United States of America |
|
|
765 | (1) |
|
12.6 Administrative and legal aspects of managing estuarine fish ecology and fisheries |
|
|
766 | (19) |
|
12.6.1 Governance background |
|
|
766 | (6) |
|
12.6.2 European legislation |
|
|
772 | (6) |
|
12.6.2.1 The Water Framework Directive |
|
|
773 | (3) |
|
12.6.2.2 Habitats and Species Directive |
|
|
776 | (2) |
|
12.6.3 Administrative bodies |
|
|
778 | (32) |
|
12.6.3.1 Management authorities: the Humber Estuary, UK example |
|
|
781 | (1) |
|
12.6.3.2 Laws and administration: the USA example |
|
|
781 | (4) |
|
12.7 Main messages and recommendations for management |
|
|
785 | (1) |
|
12.8 Future research into management methods |
|
|
786 | (1) |
|
|
786 | (1) |
|
|
786 | (12) |
13 Fish and Fisheries in Estuaries: Global Synthesis and Future Research Directions |
|
798 | (76) |
|
|
|
|
|
13.1 Introduction - changing estuarine landscapes: habitats, research and society |
|
|
798 | (6) |
|
13.2 What fishes are in estuaries and why? |
|
|
804 | (6) |
|
13.3 Estuarine fish recruitment and habitats - connectivity across space and time |
|
|
810 | (2) |
|
13.3.1 Gaps in knowledge and future research directions |
|
|
812 | (1) |
|
13.4 How much do we really understand about the role of fish in an estuarine food web? |
|
|
812 | (10) |
|
|
812 | (1) |
|
13.4.2 Fish food resources in estuaries |
|
|
813 | (2) |
|
13.4.3 Factors influencing feeding ecology, foraging movements and migrations |
|
|
815 | (1) |
|
13.4.4 Trophic categorization |
|
|
815 | (1) |
|
13.4.5 Resource partitioning, energy flow and food web complexity |
|
|
816 | (3) |
|
13.4.6 Gaps in knowledge and future research directions |
|
|
819 | (3) |
|
13.5 Fishes - good indicators of estuarine environmental change? |
|
|
822 | (8) |
|
13.5.1 Background to the integration of human pressures |
|
|
822 | (2) |
|
13.5.2 Fishes as biological indicators |
|
|
824 | (2) |
|
13.5.3 Environmental health fish-based indices |
|
|
826 | (2) |
|
13.5.4 Disentangling fish responses in the multi-stress context of global changes |
|
|
828 | (1) |
|
13.5.5 Gaps in knowledge and future research directions |
|
|
828 | (2) |
|
13.6 Climate change and habitat degradation - a double whammy for fish in estuaries? |
|
|
830 | (12) |
|
|
830 | (1) |
|
|
831 | (6) |
|
13.6.2.1 Salinity regime and freshwater-tidal balance |
|
|
834 | (1) |
|
13.6.2.2 Temperature increases |
|
|
835 | (1) |
|
|
835 | (1) |
|
13.6.2.4 Estuary connectivity |
|
|
836 | (1) |
|
13.6.3 Habitat degradation |
|
|
837 | (3) |
|
13.6.3.1 Physical habitat loss |
|
|
837 | (1) |
|
|
838 | (1) |
|
13.6.3.3 River flow regulation |
|
|
839 | (1) |
|
13.6.4 Gaps in knowledge and future research directions |
|
|
840 | (2) |
|
13.7 Estuarine species are invading and shifting their distributions |
|
|
842 | (3) |
|
13.7.1 Invasions of non-native species |
|
|
842 | (2) |
|
13.7.2 The ebb and flow: geographical expansion and contraction of species |
|
|
844 | (1) |
|
13.7.3 Gaps in knowledge and future research directions |
|
|
844 | (1) |
|
13.8 The importance and future of fisheries in estuaries - estuarine goods and benefits? |
|
|
845 | (3) |
|
13.8.1 Fisheries management in the future |
|
|
848 | (1) |
|
13.9 Estuarine fish conservation for the future |
|
|
848 | (6) |
|
13.9.1 Gaps in knowledge and future research directions |
|
|
852 | (2) |
|
13.10 Restoring and managing estuaries for fish, fisheries and habitats |
|
|
854 | (5) |
|
13.10.1 Management actions for restoring and rehabilitating estuaries |
|
|
854 | (3) |
|
13.10.2 Gaps in knowledge and future research directions |
|
|
857 | (2) |
|
13.11 Science-for-policy and policy-for-science - the current and future role of estuarine ichthyologists? |
|
|
859 | (1) |
|
13.12 Fish and fisheries research in estuaries - the way forward |
|
|
860 | (7) |
|
|
867 | (1) |
|
|
867 | (7) |
A Study Methods: Field Equipment, Sampling and Methods |
|
874 | (67) |
|
|
|
|
|
|
|
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|
874 | (1) |
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|
875 | (46) |
|
A.2.1 'Traditional' sampling (nets and traps) |
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|
875 | (28) |
|
|
876 | (6) |
|
|
882 | (4) |
|
A.2.1.3 Fixed nets and traps |
|
|
886 | (9) |
|
|
895 | (1) |
|
A.2.1.5 Ichthyoplankton samplers |
|
|
896 | (3) |
|
A.2.1.6 Power station screens |
|
|
899 | (2) |
|
A.2.1.7 Hand gathering methods |
|
|
901 | (2) |
|
A.2.2 Visual and acoustic techniques |
|
|
903 | (9) |
|
|
903 | (4) |
|
A.2.2.2 Acoustic detection |
|
|
907 | (4) |
|
A.2.2.3 Other observation techniques |
|
|
911 | (1) |
|
A.2.3 Environmental DNA methods |
|
|
912 | (9) |
|
|
913 | (3) |
|
A.2.3.2 Strengths and disadvantages of DNA-based methods |
|
|
916 | (5) |
|
A.3 Factors influencing the design of fish monitoring programmes |
|
|
921 | (7) |
|
A.3.1 Monitoring techniques |
|
|
921 | (2) |
|
A.3.2 Spatial considerations |
|
|
923 | (1) |
|
A.3.3 Temporal considerations |
|
|
924 | (1) |
|
A.3.4 A decision tree for monitoring, surveillance and survey design |
|
|
924 | (19) |
|
A.3.4.1 Decision level 1: definition of main questions and hypotheses |
|
|
925 | (1) |
|
A.3.4.2 Decision level 2: monitoring definition |
|
|
925 | (1) |
|
A.3.4.3 Decision level 3: types of survey required/desired |
|
|
926 | (1) |
|
A.3.4.4 Decision level 4: associated parameters/integrated monitoring |
|
|
927 | (1) |
|
A.3.4.5 Decision level 5: methods to be used in monitoring |
|
|
927 | (1) |
|
|
928 | (1) |
|
|
928 | (13) |
B Study Methods: Data Processing, Analysis and Interpretation |
|
941 | (65) |
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|
|
|
|
|
|
941 | (2) |
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|
943 | (19) |
|
|
943 | (1) |
|
B.2.2 Growth/age determination (otoliths/scales) |
|
|
944 | (3) |
|
|
946 | (1) |
|
B.2.3 Diet and stomach analyses |
|
|
947 | (7) |
|
B.2.3.1 Prey selectivity and prey importance |
|
|
949 | (2) |
|
|
951 | (3) |
|
B.2.4 Sex/gonad development/GSI (Gonadosomatic Index) |
|
|
954 | (1) |
|
B.2.5 External body abnormalities and fish health |
|
|
954 | (2) |
|
B.2.6 Toxins and bioaccumulation |
|
|
956 | (6) |
|
|
962 | (9) |
|
|
962 | (1) |
|
|
962 | (1) |
|
B.3.3 Condition, disease, parasitism and liver somatic index |
|
|
963 | (2) |
|
|
965 | (1) |
|
|
966 | (1) |
|
B.3.6 Growth, mortality rates and models |
|
|
966 | (1) |
|
|
967 | (3) |
|
B.3.7.1 Biological production |
|
|
967 | (2) |
|
B.3.7.2 Fisheries production |
|
|
969 | (1) |
|
|
970 | (1) |
|
B.3.9 Use of fishery statistics |
|
|
971 | (1) |
|
|
971 | (5) |
|
B.4.1 Community structure |
|
|
971 | (4) |
|
B.4.2 Multimetric fish-based indices |
|
|
975 | (1) |
|
B.5 General analysis methods and the role of models |
|
|
976 | (7) |
|
B.5.1 The types and roles of numerical models |
|
|
977 | (6) |
|
B.6 Precision versus accuracy - Analytical Quality Control/Quality Assurance |
|
|
983 | (1) |
|
|
984 | (1) |
|
|
985 | (1) |
|
|
985 | (21) |
Taxonomic Index |
|
1006 | (10) |
Geographical Index |
|
1016 | (6) |
Subject Index |
|
1022 | |