Marine Biology: An Ecological Approach |
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Page 32
... pelagic realm ; pelagic organisms are those that live in the open sea away from the bottom . This is in contrast to the benthic realm , which is a general term referring to organisms and zones of the sea bottom . Horizontally , the pelagic ...
... pelagic realm ; pelagic organisms are those that live in the open sea away from the bottom . This is in contrast to the benthic realm , which is a general term referring to organisms and zones of the sea bottom . Horizontally , the pelagic ...
Page 123
... pelagic ( associated with the open water ) zones . Since the physical environment differs between them , these two areas are inhabited by very different associations of organisms . We know perhaps more about the benthic deep - sea fauna ...
... pelagic ( associated with the open water ) zones . Since the physical environment differs between them , these two areas are inhabited by very different associations of organisms . We know perhaps more about the benthic deep - sea fauna ...
Page 124
... pelagic zones , we know most about it . The numbers of organisms appear to be the highest of all the pelagic zones . This zone extends down to about 700 to 1,000 m , the depth varying with location , clarity of water , and other factors ...
... pelagic zones , we know most about it . The numbers of organisms appear to be the highest of all the pelagic zones . This zone extends down to about 700 to 1,000 m , the depth varying with location , clarity of water , and other factors ...
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Common terms and phrases
abundant adaptations algae algal amount amphipods anemones areas Atlantic bacteria barnacles benthic biology body bottom burrow carnivores changes Cnidaria communities competition copepods coral reef crabs crustaceans deep sea density deposit feeders depth desiccation detritus diatoms dinoflagellates dominant ecology ecosystems eggs epipelagic estuary fauna feeding Figure fishes fresh water grazing hence herbivores increased invertebrates kelp kelp beds large numbers larvae layers levels light living low tide major marine mammals marsh mesopelagic migrate mollusks Mytilus nekton number of species numbers nutrients occur ocean oxygen Pacific coast particles patterns pelagic percent Photo courtesy photophores photosynthesis physical factors phytoplankton plankton plants Plate polychaete population predators primary productivity reduced result rocky shores salinity salt sand beaches sea grass sea urchins sea water sediment shallow water squids substrate surface waters suspension feeders temperate temperature terrestrial thermocline tropical tuna upper various vertical water column water mass wave action whales zonation zone zooplankton zooxanthellae