Marine Biology: An Ecological Approach |
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Page 35
... bottom or carries away the upper layer of sediment . Another disturbance may be the rapid deposition of sediment on the bottom . In certain cases , biological activity may also disturb the bottom , for instance when large fish such as ...
... bottom or carries away the upper layer of sediment . Another disturbance may be the rapid deposition of sediment on the bottom . In certain cases , biological activity may also disturb the bottom , for instance when large fish such as ...
Page 195
... bottom topography . Infaunal Associations The dominant groups of organisms that constitute the macrofauna present in sublittoral soft bottoms belong to four main taxonomic groups : class Polychaeta , class Crustacea , phylum ...
... bottom topography . Infaunal Associations The dominant groups of organisms that constitute the macrofauna present in sublittoral soft bottoms belong to four main taxonomic groups : class Polychaeta , class Crustacea , phylum ...
Page 235
... bottom , the fauna is destroyed , either by mechani- cal action of the ice grinding against the bottom or by freezing the animals . This means that in polar areas , the shallowest subtidal areas are devoid of permanent communities down ...
... bottom , the fauna is destroyed , either by mechani- cal action of the ice grinding against the bottom or by freezing the animals . This means that in polar areas , the shallowest subtidal areas are devoid of permanent communities down ...
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