Marine Biology: An Ecological Approach |
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Page 112
... body . The most common means of producing forward movement is by undulatory motions of the body or of the fins . Virtually all nektonic fishes show these types of motion . In the undulatory mechanism , the animal moves itself forward by ...
... body . The most common means of producing forward movement is by undulatory motions of the body or of the fins . Virtually all nektonic fishes show these types of motion . In the undulatory mechanism , the animal moves itself forward by ...
Page 117
... body Eyes flush with body No scales ( A ) ( C ) Figure 3.10 Three views of a tuna showing the adaptations necessary for fast movement . ( A ) Front view . ( B ) Side view . ( C ) Top view . the external surface of the body so that there ...
... body Eyes flush with body No scales ( A ) ( C ) Figure 3.10 Three views of a tuna showing the adaptations necessary for fast movement . ( A ) Front view . ( B ) Side view . ( C ) Top view . the external surface of the body so that there ...
Page 118
... Body outline Body outline Water surface Cross section of body View from below No shadow , body invisible Shadow , part of body shadowed visible Figure 3.11 Diagram showing how a keel on the ventral surface of an animal eliminates the ...
... Body outline Body outline Water surface Cross section of body View from below No shadow , body invisible Shadow , part of body shadowed visible Figure 3.11 Diagram showing how a keel on the ventral surface of an animal eliminates the ...
Common terms and phrases
abundant adaptations algae algal amphipods anemones animals areas associations Atlantic bacteria barnacles benthic benthos Biol biological bottom burrowing changes clams Cnidaria colonies community structure competition copepods coral reefs crabs crustaceans deep sea density deposit feeders depth desiccation detritus diatoms distribution diversity dominant ecology effect environment estuary example fauna feeding Figure fishes gastropod grazing growth herbivores increased infaunal interactions interstitial intertidal zone invertebrates kelp large numbers larvae layers light limpets low tide macrofauna mangrove marine meiofauna meiofaunal organisms mesopelagic mollusks mud flats nekton number of species nutrients occur ocean oxygen Pacific coast particles patterns pelagic percent Photo courtesy photophores physical factors phytoplankton plankton plants Plate polychaete population predators prey primary productivity reduced result rocky intertidal rocky shores salinity sand beaches sand flats seagrass seagrass beds seawater sediment space substrate subtidal surface suspension feeders temperate temperature terrestrial tidal tropical various vertical water column wave action zonation zooplankton zooxanthellae