The Plankton of the SeaAmerican Elsevier Publishing Company, 1966 - 426 pagine |
Dall'interno del libro
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Pagina 53
... spore ' and appears to be formed when overcrowding occurs and the light and temperature drop . Usually such spores are rounded- off cell - contents with an epitheca and hypotheca shell round them . Sometimes the epitheca may be ...
... spore ' and appears to be formed when overcrowding occurs and the light and temperature drop . Usually such spores are rounded- off cell - contents with an epitheca and hypotheca shell round them . Sometimes the epitheca may be ...
Pagina 58
... spores which either form new individuals or divide into an adherent mass of cells , each of which turns into a ' palmella ' stage . The latter gives rise to a number of spores which in their turn produce new individuals . Related to the ...
... spores which either form new individuals or divide into an adherent mass of cells , each of which turns into a ' palmella ' stage . The latter gives rise to a number of spores which in their turn produce new individuals . Related to the ...
Pagina 121
... spores with two flagella are produced . The swarm spores have been seen gathering round an uninfected Calanus over whose surface amoeboid cells were crawling , and it may be that this represented an early stage of reinfection . The ...
... spores with two flagella are produced . The swarm spores have been seen gathering round an uninfected Calanus over whose surface amoeboid cells were crawling , and it may be that this represented an early stage of reinfection . The ...
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