INDEX OF SUBJECTS 



323 



Fisheries (cont.) 



oyster, 115 



pelagic, 105 



periwinkle, 115 



prawn, 114 



shell-fish, 114 



shrimp, 58 



sprat, 110 

 Fish eggs, 67 



Baltic, in, 244 



demersal, 83 



density of, 167 



destruction of, 92 



pelagic, 83 



salinity, and, 244 



succession of, 95 

 Fishermen, economic condition, 112 

 Fishery legislation, 196 



statistics, 181, 245 

 Fishing baskets, 23 



lines, 25 

 Fishing weirs, 25 

 Flounder, chemical composition, 190 



density in North Sea, 171 



eggs in North Sea, 171 

 Food of marine organisms, 221 

 Food-stuffs in sea, 223 

 Foreshore, 32 



fisheries of, 58 



organisms of, 58 



Gephyrea, food of, 230 

 German plankton work, 309 

 Gill net. 111 

 Gill rakers, 222 

 Glauconite, 292, 300 

 Globigerina, 76 

 Giobigerina ooze, 35 



area of, 304 



lime in, 304 

 Gordius, nutrition of, 229 

 Grajilla, nutrition of, 229 

 Greenland- Shetland banks, 31 



fjords, fauna of, 204 



seas, life in, 204 

 Gulf of Guinea, plankton, 242 

 Gulf stream, 38, 43, 308 



eddy, 45 



periodic variations, 50 



pulsations, 46 



unperiodic variations, 50 



Haddock, 107 



density in North Sea, 171 

 Haemoglobin in Egyptian mummy, 



276 

 Hake, 107, 248 

 HaHbut, 248 

 Halibacteria, 258 

 Halistatic areas, 308 



plankton, 156 



Halosphaera, 76 



and depth, 249 



plankton, 154 

 Harvest of sea, 196 

 Heliotropism, 248 



of Calanus, 147 



of copepods, 146 



of Euchilota pilosella, 147 



of Obelia, 147 



of Phyllodoce, 146 



of Tomopteris, 147 

 Hensen plankton net, 121 



accuracy of, 306 



calculation of error of, 307 



comparative hauls of, 306 



defects of, 141, 166 



experimental errors, 144, 307 



filtration capacity, 126, 314 



form for fresh water, 136 



validity of use of, 134 

 Herbivores in sea, 222 

 Heredity of chemical composition of 



animal body, 303 

 Herring, chemical composition of, 190 



fisheries, 110 



food of, 188 



migrations of, 245 



salinity, and, 246 



Skagerak, in, 246 



temperature, and, 246 



winter, 248 

 Hibernation in marine animals, 242 

 Holophytic organisms, 223 

 Holozoic organisms, 221 

 Homologous structures, 229 

 Homosaline sea areas, 308 

 Homothermic sea areas, 143 

 Hose nets, 115 

 Hydra, 226 

 Hydrographic charts, 30 



methods, 2 



soundings, 38 

 Hydrography and metabolism, 240 

 Hydrometers, 8 



Iceland banks, 31 



cod spawning round, 247 



fisheries, 247 



and temperature, 247 



trawling, 198 

 Immature fishes in North Sea, 172 

 Impoverishment of sea, 196 

 Indispensable food-stuffs, 234 

 Infusoria and putrefaction, 278 

 Inorganic food-stuffs, 221, 232 

 Inshore fisheries, 106 

 Inshore plankton, 148 

 International fishery investigations, 7, 

 12, 27, 28, 50, 214, 246, 289 



area of, 15 



central laboratory, 13 



