The Plankton of the SeaAmerican Elsevier Publishing Company, 1966 - 426 pagine |
Dall'interno del libro
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Pagina 53
... latter may be produced by the only cells in existence , those a fifth to a seventh of the maximum cell diameter . A third sort of spore that occurs in diatoms is the one in which it tides over periods of inactivity or unfavourable ...
... latter may be produced by the only cells in existence , those a fifth to a seventh of the maximum cell diameter . A third sort of spore that occurs in diatoms is the one in which it tides over periods of inactivity or unfavourable ...
Pagina 75
... latter from the egg produced by the medusa . The medusa is about 5 mm . in diameter Figure 15. The Anthomedusan Bou- gainvillea ramosa ( Van Beneden ) arising from its Gymnoblastan polyp . Height of medusa bell 2-4 mm . noticeably ...
... latter from the egg produced by the medusa . The medusa is about 5 mm . in diameter Figure 15. The Anthomedusan Bou- gainvillea ramosa ( Van Beneden ) arising from its Gymnoblastan polyp . Height of medusa bell 2-4 mm . noticeably ...
Pagina 117
... latter , by using them either as a food supply or only as a means of transport while they make other arrangements to feed themselves . The phytoplankton affords instances of this sort and also has species which are the passive vehicles ...
... latter , by using them either as a food supply or only as a means of transport while they make other arrangements to feed themselves . The phytoplankton affords instances of this sort and also has species which are the passive vehicles ...
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