The Plankton of the SeaAmerican Elsevier Publishing Company, 1966 - 426 pagine |
Dall'interno del libro
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Pagina 82
... mouth to the opposite end , and the result is that the animal glides forward smoothly in the direction of its mouth , trailing its long tentacles behind it . These latter are provided with many adhesive cells and act like drifting lines ...
... mouth to the opposite end , and the result is that the animal glides forward smoothly in the direction of its mouth , trailing its long tentacles behind it . These latter are provided with many adhesive cells and act like drifting lines ...
Pagina 86
... mouth and anus open into separate vestibules . There is a small ciliated disk at the pointed ( aboral ) end of the bell , opposite the mouth . M --- CS , -S A PV Figure 27. Cyphonautes larva of Poly- zoan . Length 0-85 mm . A , anus ...
... mouth and anus open into separate vestibules . There is a small ciliated disk at the pointed ( aboral ) end of the bell , opposite the mouth . M --- CS , -S A PV Figure 27. Cyphonautes larva of Poly- zoan . Length 0-85 mm . A , anus ...
Pagina 107
... mouth at the head of the animal . At a slightly later stage , the loop of cilia above the mouth is nipped off to form a pre - oral band , the remainder being called the post - oral band . About the same time a small ring of cilia is ...
... mouth at the head of the animal . At a slightly later stage , the loop of cilia above the mouth is nipped off to form a pre - oral band , the remainder being called the post - oral band . About the same time a small ring of cilia is ...
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