The Plankton of the SeaAmerican Elsevier Publishing Company, 1966 - 426 pagine |
Dall'interno del libro
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Pagina 58
... 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 Coccolithophoridae is a ...
... 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 Coccolithophoridae is a ...
Pagina 74
... individuals . These differ in that the stomach of the Narcomedusa is wide , occupying the underside of the umbrella , but in the Trachymedusa radial canals ( arms of the stomach ) are present , running to a circular canal which ...
... individuals . These differ in that the stomach of the Narcomedusa is wide , occupying the underside of the umbrella , but in the Trachymedusa radial canals ( arms of the stomach ) are present , running to a circular canal which ...
Pagina 111
... individual of this type ( Figure 52 ) produces an asexual generation as a result of the fertilization of its eggs . At ... individuals are tailed larvae , the tail growing from the ventral and posterior end of the barrel . Later the tail ...
... individual of this type ( Figure 52 ) produces an asexual generation as a result of the fertilization of its eggs . At ... individuals are tailed larvae , the tail growing from the ventral and posterior end of the barrel . Later the tail ...
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