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THE ECOLOGY OF TROPICAL SOFT-BOTTOM BENTHIC ECOSYSTEMS

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dc.contributor Australian Institute Of Marine Science (aims) en
dc.contributor Australian Inst Marine Sci
dc.contributor Australian Institute Of Marine Science
dc.contributor.author ALONGI, DM
dc.date.accessioned 2017-03-21T01:20:16Z
dc.date.accessioned 2013-02-28T06:49:59Z
dc.date.accessioned 2013-02-28T06:49:59Z
dc.date.accessioned 2018-11-01T03:18:50Z
dc.date.available 2017-03-21T01:20:16Z
dc.date.available 2013-02-28T06:49:59Z
dc.date.available 2013-02-28T06:49:59Z
dc.date.available 2018-11-01T03:18:50Z
dc.date.issued 1990-01-01
dc.identifier 2336 en
dc.identifier.citation Alongi DM (1990) The ecology of tropical soft-bottom benthic ecosystems. Oceanography and Marine Biology: an Annual Review. 28: 381-496. en
dc.identifier.issn 0078-3218
dc.identifier.uri http://epubs.aims.gov.au/11068/2336
dc.description.abstract The structure and function of tropical soft-bottom benthic ecosystems are reviewed and compared with seafloor ecosystems of higher latitudes. Diversity of benthic habitats peaks in the tropics. Variations in climate have led to the development of unique sedimentary features and sea-floor habitats such as mangroves, coral reefs, stromatolites, mixed terrigenous-carbonate shelves, fluid mudbanks and hypersaline lagoons. Temporal and spatial patterns of benthos in all latitudes are determined by primary production in the water column and by sediment type and associated physicochemical conditions. In the tropics, however, control of benthic communities is vested in monsoonal rains, high temperatures, hypersaline conditions, carbonate sedimentation and compaction, low and variable oxygen and dissolved nutrient concentrations, chemical defenses by plants, smothering by massive riverine sedimentation, erosion of mudbanks and by anoxia caused by impingement and stratification of water masses. The widest variations in faunal densities and species richness occur in the tropics, coinciding with the great variety of habitats and environmental conditions. Energetically, there is some evidence of higher rates of microbial growth and invertebrate production in the tropics, but pelagic and demersal fish yields to man seem to be equivalent to those in higher latitudes. At the ecosystems level, variations in energy fluxes are as great within a given latitude as they are among latitudes, obfuscating some real differences with latitude. It is clear that the tropics are not a uniform or benign milieu but offer climatic and environmental conditions as inimical to benthic assemblages as the supposedly, more inhospitable, boreal and temperate latitudes.
dc.language English
dc.language en en
dc.relation.ispartof Oceanography and Marine Biology: an Annual Review - pages: 28: 381-496 en
dc.relation.ispartof Null
dc.subject Community Structure
dc.subject Continental-shelf
dc.subject Oceanography
dc.subject East China Sea
dc.subject Sediment-water Interface
dc.subject 2 Sandy Beaches
dc.subject Callinectes-arcuatus Ordway
dc.subject South West India
dc.subject El-nino 1982-83
dc.subject Great-barrier-reef
dc.subject Marine & Freshwater Biology
dc.subject Bacterial Productivity
dc.title THE ECOLOGY OF TROPICAL SOFT-BOTTOM BENTHIC ECOSYSTEMS
dc.type journal article en
dc.identifier.wos WOS:A1990FD80600007


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