Marine Biology: An Ecological Approach |
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Page 77
... zooplankton to effectively change their horizontal position . In order to understand how this is possible , it is necessary to return to the previously described principle known as the Ekman spiral . As noted in Chapter One , as one ...
... zooplankton to effectively change their horizontal position . In order to understand how this is possible , it is necessary to return to the previously described principle known as the Ekman spiral . As noted in Chapter One , as one ...
Page 113
... zooplankton are then swallowed . The dominant zooplankton organisms fed upon in this way are euphausiids ( see Fig . 2-8 ) . These organisms exist in untold numbers in the oceans , particularly the Antarctic and Arctic seas , where they ...
... zooplankton are then swallowed . The dominant zooplankton organisms fed upon in this way are euphausiids ( see Fig . 2-8 ) . These organisms exist in untold numbers in the oceans , particularly the Antarctic and Arctic seas , where they ...
Page 295
... zooplankton cycle in estuaries is quite variable and , as Deevey ( 1960 ) found , may even change drastically from year to year . It does not closely follow the phytoplankton cycle . Zooplankton peak in number later in the spring than ...
... zooplankton cycle in estuaries is quite variable and , as Deevey ( 1960 ) found , may even change drastically from year to year . It does not closely follow the phytoplankton cycle . Zooplankton peak in number later in the spring than ...
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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