Marine Biology: An Ecological Approach |
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Page 241
... polychaete worms or gastropod mollusks . The polychaetes , such as species of the genera Nepthys and Glycera , actively burrow through the sand and seize small prey items with their eversible proboscis . The carnivorous gastropods are ...
... polychaete worms or gastropod mollusks . The polychaetes , such as species of the genera Nepthys and Glycera , actively burrow through the sand and seize small prey items with their eversible proboscis . The carnivorous gastropods are ...
Page 315
... Polychaete Bryozoa 5 Coralline algae Sea whip Sea fan Crinoid Soft corals Sea Urchin Tridacna Halimeda Holothurian Sea star Caulerpa Figure 9-6 Some of the dominant and conspicuous components of a coral reef . small gastropods are also ...
... Polychaete Bryozoa 5 Coralline algae Sea whip Sea fan Crinoid Soft corals Sea Urchin Tridacna Halimeda Holothurian Sea star Caulerpa Figure 9-6 Some of the dominant and conspicuous components of a coral reef . small gastropods are also ...
Page 372
... polychaete Chaetopterus . This genus is virtually cosmopolitan , building tough parchment tubes . These tubes are also inhabited by various species of pinnotherid crabs and scale worms , the species differing depending on the ...
... polychaete Chaetopterus . This genus is virtually cosmopolitan , building tough parchment tubes . These tubes are also inhabited by various species of pinnotherid crabs and scale worms , the species differing depending on the ...
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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