Marine Biology: An Ecological Approach |
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Page 82
... nekton are predominantly vertebrates ; among these the fishes are the most numerous , both in species and individuals , but representatives of every vertebrate class except amphibians are found here . Whereas nekton in the larger sense ...
... nekton are predominantly vertebrates ; among these the fishes are the most numerous , both in species and individuals , but representatives of every vertebrate class except amphibians are found here . Whereas nekton in the larger sense ...
Page 83
... NEKTON The oceanic nekton is composed of a wide variety of various bony fishes , sharks , and rays as well as lesser numbers of marine mammals , reptiles , and birds . The only invertebrates that can be considered nekton are the various ...
... NEKTON The oceanic nekton is composed of a wide variety of various bony fishes , sharks , and rays as well as lesser numbers of marine mammals , reptiles , and birds . The only invertebrates that can be considered nekton are the various ...
Page 112
... NEKTON As we noted in the introduction , because of the difficulties of observation and experiment with natural populations of nekton , we know very little about the ecology of these forms . Most of our information concerns the feeding ...
... NEKTON As we noted in the introduction , because of the difficulties of observation and experiment with natural populations of nekton , we know very little about the ecology of these forms . Most of our information concerns the feeding ...
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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