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Spatial patterns of infauna, epifauna, and demersal fish communities in the North Sea Reiss, H.; Degraer, S.; Duineveld, G.C.A.; Kröncke, I.; Aldridge, J.N.; Craeymeersch, J.A.; Eggleton, J.D.; Hillewaert, H.; Lavaleye, M.S.S.; Moll, A.; Pohlmann, TH.; Rachor, E.; Robertson, M.; Vanden Berghe, E.; Van Hoey, G.; Rees, H.L. (2010). Spatial patterns of infauna, epifauna, and demersal fish communities in the North Sea. ICES J. Mar. Sci./J. Cons. int. Explor. Mer 67(2): 278-293. dx.doi.org/10.1093/icesjms/fsp253 In: ICES Journal of Marine Science. Academic Press: London. ISSN 1054-3139; e-ISSN 1095-9289

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Beschikbaar in	Auteurs
VLIZ: Open access 212341 [ download pdf ]

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Trefwoorden

Aquatic communities > Benthos Benthic infauna Composition > Community composition Fisheries > Demersal fisheries Management > Ecosystem management Species diversity Marien/Kust

Author keywords

benthic assemblages; community structure; demersal fish; ecosystem management; species diversity

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Auteurs		Top
Reiss, H. Degraer, S. Duineveld, G.C.A. Kröncke, I. Aldridge, J.N. Craeymeersch, J.A.	Eggleton, J.D. Hillewaert, H. Lavaleye, M.S.S. Moll, A. Pohlmann, TH.	Rachor, E. Robertson, M. Vanden Berghe, E. Van Hoey, G. Rees, H.L.

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Abstract

Understanding the structure and interrelationships of North Sea benthic invertebrate and fish communities and their underlying environmental drivers is an important prerequisite for conservation and spatial ecosystem management on scales relevant to ecological processes. Datasets of North Sea infauna, epifauna, and demersal fish (1999–2002) were compiled and analysed to (i) identify and compare spatial patterns in community structure, and (ii) relate these to environmental variables. The multivariate analyses revealed significantly similar large-scale patterns in all three components with major distinctions between a southern community (Oyster Ground and German Bight), an eastern Channel and southern coastal community, and at least one northern community (>50 m deep). In contrast, species diversity patterns differed between the components with a diversity gradient for infauna and epifauna decreasing from north to south, and diversity hotspots of demersal fish, e.g. near the major inflows of Atlantic water. The large-scale hydrodynamic variables were the main drivers for the structuring of communities, whereas sediment characteristics appeared to be less influential, even for the infauna communities. The delineation of ecologically meaningful ecosystem management units in the North Sea might be based on the structure of the main faunal ecosystem components.

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