The Plankton of the SeaAmerican Elsevier Publishing Company, 1966 - 426 pagine |
Dall'interno del libro
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Pagina 51
... auxospore formation is really a method of sexual reproduction . It is now known that auxospore formation in the Centrales is also a method of sexual reproduction in some of the species , and it seems quite likely that further work may ...
... auxospore formation is really a method of sexual reproduction . It is now known that auxospore formation in the Centrales is also a method of sexual reproduction in some of the species , and it seems quite likely that further work may ...
Pagina 52
... auxospore comes out of the parent cell at right angles . From observations in the sea it has been shown that in several species , if we begin at the time at which the auxospore generation is first found , it may take three or four years ...
... auxospore comes out of the parent cell at right angles . From observations in the sea it has been shown that in several species , if we begin at the time at which the auxospore generation is first found , it may take three or four years ...
Pagina 172
... auxospore formation ( Wimpenny , unpublished ) . Where auxospore formation is annual there may , therefore , be an annual cycle of quiescence and activity . Light being present in an adequate amount , a pulse or flowering of ...
... auxospore formation ( Wimpenny , unpublished ) . Where auxospore formation is annual there may , therefore , be an annual cycle of quiescence and activity . Light being present in an adequate amount , a pulse or flowering of ...
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