Marine Biology: An Ecological Approach |
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Page 13
... mass below the thermocline is nearly isothermal all the way to the bottom . The thermocline is a persistent feature of tropical waters and occurs in temperate waters in the summer months . Thermoclines are ... Water masses and circulation.
... mass below the thermocline is nearly isothermal all the way to the bottom . The thermocline is a persistent feature of tropical waters and occurs in temperate waters in the summer months . Thermoclines are ... Water masses and circulation.
Page 18
... water , subsurface water upwells to the surface ( Fig . 1-12 ) . Movement in the deep water mass is quite different from that in the surface mass . The deep water mass is isolated from the wind ; therefore , its motion Figure 1-12 ( A ) ...
... water , subsurface water upwells to the surface ( Fig . 1-12 ) . Movement in the deep water mass is quite different from that in the surface mass . The deep water mass is isolated from the wind ; therefore , its motion Figure 1-12 ( A ) ...
Page 19
... water mass does , however , result from changes occurring in water at the surface . Sea water increases in density with a decrease in temperature and an increase in salinity . When sea water increases in density , it sinks . Therefore ...
... water mass does , however , result from changes occurring in water at the surface . Sea water increases in density with a decrease in temperature and an increase in salinity . When sea water increases in density , it sinks . Therefore ...
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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