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Refinement, validation, and application of a benthic condition index for Northern Gulf of Mexico estuaries Engle, V.D.; Summers, J.K. (1999). Refinement, validation, and application of a benthic condition index for Northern Gulf of Mexico estuaries. Estuaries 22(3): 624-635 In: Estuaries. The Estuarine Research Federation, Chesapeake Biological Laboratory: Columbia, S.C., etc.,. ISSN 0160-8347; e-ISSN 1559-2758, meer

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Beschikbaar in	Auteurs
VLIZ: Open access 261304 [ download pdf ]

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Trefwoorden

Aquatic communities > Benthos Aquatic communities > Benthos > Zoobenthos Aquatic organisms > Estuarine organisms Assessments Assessments ASW, USA, Florida, Pensacola Bay ASW, USA, Gulf Coast ASW, USA, Louisiana Indexing Indexing Indicators Indicators > Pollution indicators Information > Information processing > Documentation > Information processing > Indexing Monitoring Monitoring > Environmental monitoring Monitoring > Environmental monitoring > Pollution monitoring Population characteristics > Biomass Properties > Physical properties > Mechanical properties > Flexibility Species diversity Taxa > Species > Indicator species Water bodies > Coastal waters > Coastal landforms > Coastal inlets > Estuaries Invertebrata [Ongewervelden] Gulf Coast of the United States [Marine Regions]; Louisiana [Marine Regions]; Pensacola Bay [Marine Regions] Marien/Kust

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Auteurs		Top
Engle, V.D. Summers, J.K.

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Abstract

By applying discriminant analysis to benthic macroinvertebrate data, we have developed an indicator of benthic condition for northern Gulf of Mexico estuaries. The data used were collected by the United States Environmental Protection Agency's Environmental Monitoring and Assessment Program (EMAP) in the Louisianian Province from 1991 to 1994. This benthic index represents a linear combination of the following weighted parameters: the proportion of expected species diversity, the mean abundance of tubificid oligochaetes, the percent of total abundance represented by capitellid polychaetes, the percent of total abundance represented by bivalve mollusks, and the percent of total abundance represented by amphipods. We successfully validated and retrospectively applied the benthic index to all of the benthic data collected by EMAP in the Louisianian Province. This benthic index was also calculated for independent data collected from Pensacola Bay, Florida, in order to demonstrate its flexibility and applicability to different estuarine systems within the same biogeographic region. The benthic index is a useful and valid indicator of estuarine condition that is intended to provide environmental managers with a simple tool for assessing the health of benthic macroinvertebrate communities.

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