Marine Biology: An Ecological Approach |
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Page 163
... areas were occupied by recurrent groups of species and that other areas were inhabited by different associations of species . In all cases , he observed that a relatively few species made up most of the individuals and biomass . This ...
... areas were occupied by recurrent groups of species and that other areas were inhabited by different associations of species . In all cases , he observed that a relatively few species made up most of the individuals and biomass . This ...
Page 193
... areas , the shallowest subtidal areas are devoid of permanent communities down to the level to which the ice extends . This area may , however , be inhabited during ice - free times of the year by mobile or transient organisms . In ...
... areas , the shallowest subtidal areas are devoid of permanent communities down to the level to which the ice extends . This area may , however , be inhabited during ice - free times of the year by mobile or transient organisms . In ...
Page 349
... areas such an impenetrable maze for humans . Species of Rhizophora are often quite tall and develop across a broad area of the intertidal , from levels flooded at all high tides to areas flooded only on highest spring tides ...
... areas such an impenetrable maze for humans . Species of Rhizophora are often quite tall and develop across a broad area of the intertidal , from levels flooded at all high tides to areas flooded only on highest spring tides ...
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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