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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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one publication added to basket [107036]

Benthic biodiversity indices versus salinity gradient in the southern Baltic Sea Zettler, M.L.; Schiedek, D.; Bobertz, B. (2007). Benthic biodiversity indices versus salinity gradient in the southern Baltic Sea. Mar. Pollut. Bull. 55(1-6): 258-270. https://dx.doi.org/10.1016/j.marpolbul.2006.08.024 In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, meer Ook verschenen in: Devlin, M.; Best, M.; Haynes, D. (Ed.) (2007). Implementation of the Water Framework Directive in European marine waters. Marine Pollution Bulletin, 55(Spec. Issue 1-6). Elsevier: Amsterdam. 297 pp., meer

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Beschikbaar in	Auteurs | Dataset
VLIZ: MarBEF Open Archive 114886 [ download pdf ]

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Trefwoorden

Aquatic communities > Benthos Depletion > Oxygen depletion Gradients > Salinity gradients ANE, Southern Baltic [Marine Regions] Marien/Kust

Author keywords

Southern Baltic sea; macrozoobenthos; biotic indices; ecologicalquality; salinity gradient; water framework directive; oxygen depletion

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Auteurs		Top | Dataset
Zettler, M.L., meer Schiedek, D., meer Bobertz, B.

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Abstract

The need to assess the environmental status of marine and coastal waters according to the EU Water Framework Directive (WFD) encouraged the design of specific biotic indices to evaluate the response of benthic communities to human-induced changes in water quality. In the present study three of these indices, the traditional Shannon Wiener Index (H′) and the more recently published AMBI (AZTI′ Marine Biotic Index) and BQI (Benthic Quality Index), were tested along a salinity gradient in the southern Baltic Sea. The comparison of the three indices demonstrates that in the southern Baltic Sea the ecological quality (EcoQ) classification based on macrozoobenthic communities as indicator greatly depends on the biotic index chosen. We found a significant positive relation between species number, H′, BQI and salinity resulting in EcoQ status of “Bad”, “Poor” or “Moderate” in areas with a salinity value below 10 psu. The AMBI was less dependent on salinity but appear to partly overestimate the EcoQ status. Presently none of these biotic indices appear to be adjusted for application in a gradient system as given in the southern Baltic Sea. A potential approach describing how to overcome this limitation is discussed.

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Dataset

Zettler M. L., 2005: Macrozoobenthos baltic sea (1980-2005) as part of the IOW-Monitoring. Institut für Ostseeforschung Warnemünde, Germany, meer

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