The Plankton of the SeaAmerican Elsevier Publishing Company, 1966 - 426 pagine |
Dall'interno del libro
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Pagina 89
... body . The head also contains a small brain above the mouth . The trunk is a long cylindrical or oval part , carrying the fins at each side and having down the centre the simple tube of the intestine . Outside this there is the body ...
... body . The head also contains a small brain above the mouth . The trunk is a long cylindrical or oval part , carrying the fins at each side and having down the centre the simple tube of the intestine . Outside this there is the body ...
Pagina 121
... bodies , later form- ing thin sheets on the body - wall and thicker orange masses in the open cavities . Later it fills up all the body - spaces , forming one mass containing large numbers of fatty deposits . Spores are formed and these ...
... bodies , later form- ing thin sheets on the body - wall and thicker orange masses in the open cavities . Later it fills up all the body - spaces , forming one mass containing large numbers of fatty deposits . Spores are formed and these ...
Pagina 123
... body of the former cypris now turns itself into a flask - shaped body containing the undifferentiated central mass already mentioned and called by Delage the ' kentrogen ' stage . The central mass of the larva then passes through the ...
... body of the former cypris now turns itself into a flask - shaped body containing the undifferentiated central mass already mentioned and called by Delage the ' kentrogen ' stage . The central mass of the larva then passes through the ...
Sommario
PREFACE page | 13 |
INTRODUCTION | 17 |
THE FIELDS of the Sea | 43 |
Copyright | |
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Parole e frasi comuni
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