Marine Biology: An Ecological Approach |
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Page 246
... abundant organic matter . Bacteria are the only abundant organisms found in the anaerobic layers of the mud shore and constitute a significant biomass . Among the dominant bacteria inhabiting this area are a number capable of utilizing ...
... abundant organic matter . Bacteria are the only abundant organisms found in the anaerobic layers of the mud shore and constitute a significant biomass . Among the dominant bacteria inhabiting this area are a number capable of utilizing ...
Page 315
... abundant on reefs , but usually inconspicuous due to their size or because they are hidden . Echinoderms , primarily sea urchins , sea cucumbers , starfish , and sea lilies ( crinoids ) are another abundant and conspicuous group on ...
... abundant on reefs , but usually inconspicuous due to their size or because they are hidden . Echinoderms , primarily sea urchins , sea cucumbers , starfish , and sea lilies ( crinoids ) are another abundant and conspicuous group on ...
Page 392
... abundant plankton . This small fish occurred in tremendous numbers in these cold waters before the advent of human fishing . The major predators were various species of marine birds , collectively called " guano birds , " which existed ...
... abundant plankton . This small fish occurred in tremendous numbers in these cold waters before the advent of human fishing . The major predators were various species of marine birds , collectively called " guano birds , " which existed ...
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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