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Macrofaunal assemblages of benthic habitat of different complexity and the proposition of a model of biogenic reef habitat regeneration in Foveaux Strait, New Zealand Cranfield, H.J.; Rowden, A.A.; Smith, D.J.; Gordon, D.P.; Michael, K.P. (2004). Macrofaunal assemblages of benthic habitat of different complexity and the proposition of a model of biogenic reef habitat regeneration in Foveaux Strait, New Zealand. J. Sea Res. 52(2): 109-125. https://dx.doi.org/10.1016/j.seares.2003.12.003 In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414, meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 351778 [ aanvragen ]

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Trefwoorden

Composition > Community composition Environments > Aquatic environment > Benthic environment Habitat selection Macrobenthos PSE, New Zealand, Foveaux Strait Reefs Foveaux Strait [Marine Regions] Marien/Kust

Author keywords

habitat complexity; biogenic reefs; habitat regeneration; macrobenthicsuccession; fishing disturbance; oyster fishery

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Auteurs		Top
Cranfield, H.J. Rowden, A.A. Smith, D.J.	Gordon, D.P. Michael, K.P.

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Abstract

Complex biogenic reefs in Foveaux Strait have been removed by dredging for the oysters that occurred on this habitat and reduced much of the seafloor to relict pebble gravel. Biogenic habitat has regenerated in localised patches on the dredge-modified seafloor. We sampled the macrofauna on five of these habitats with differing complexity and tested the hypothesis that the macrofauna assemblage composition differed between habitats and the difference conformed to a seriation with increasing complexity. The results of multivariate analyses supported the hypothesis and allowed for the postulation of a model of macrofaunal assemblage succession and biogenic habitat regeneration in Foveaux Strait. The extent of habitat regeneration appears to largely depend both on the time since fishing ceased and on the proximity of the sources of re-colonising propagules. Oyster density rebuilt to relatively high densities in habitat that had not fully regenerated. The results of the study suggest specific habitat conservation strategies that could benefit the sustainable management of the oyster fishery of Foveaux Strait.

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