The Plankton of the SeaAmerican Elsevier Publishing Company, 1966 - 426 pagine |
Dall'interno del libro
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Pagina 128
... population of the host to a level which lowers the infection - rate to a level the host population can carry . The really catastrophic effects of parasitism are likely to be those where a species of parasite is suddenly brought into ...
... population of the host to a level which lowers the infection - rate to a level the host population can carry . The really catastrophic effects of parasitism are likely to be those where a species of parasite is suddenly brought into ...
Pagina 153
... population remained high , it did not appear from the number of pellets that the animals were feeding so vigorously , and when , in the autumn , a second flowering of phytoplankton rose to a maximum , the animals went up to about their ...
... population remained high , it did not appear from the number of pellets that the animals were feeding so vigorously , and when , in the autumn , a second flowering of phytoplankton rose to a maximum , the animals went up to about their ...
Pagina 180
... population starts to move down again . Going still farther south , it appears that in the Calanus population of the English Channel it is the third or a later generation that comes to the surface in July or August ( Russell , 1926 ) ...
... population starts to move down again . Going still farther south , it appears that in the Calanus population of the English Channel it is the third or a later generation that comes to the surface in July or August ( Russell , 1926 ) ...
Sommario
PREFACE page | 13 |
INTRODUCTION | 17 |
THE FIELDS of the Sea | 43 |
Copyright | |
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adult Algae algal amphipod Antapical Antarctic Appendicularia Arctic arrow worm auxospore Biddulphia biol Biological body bottom Calanus Calanus finmarchicus called carbon cells Ceratium Chaetoceros Chaetognatha ciliated Cleve coast coastal copepods Coscinodiscus Crustacea deep water depth diameter diatoms distribution Dorsal eggs Ehbg elegans euphausid Expedition female Figure fish Fisheries flagellated floating G. O. Sars genera genus gonozooid growth Grun hauled Hensen individuals jelly-fish Laboratory larva latitudes latter layer light living lower marine medusa mentioned mouth Mysidae neritic North Atlantic North Sea Norwegian Sea number of species nutrients occur oceanic organic matter oxygen parasite pelagic peridinians Peridinium photophores photosynthesis phyto phytoplankton plankton plankton organisms plants Plate polyp population produced Rhizosolenia round Sagitta samples Sars sea water seasonal segments shell shrimps spores stage standing crop stations Steemann Nielsen surface water swimming temperature thoracic Thysanoessa tion tropical tube Uropod Ventral vertical warmer zone zooplankton