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Muscle melanisation in sand flathead (Platycephalus bassensis) and links to elevated zinc levels

Ooi, CK, Ware, M, Lewis, T ORCID: 0000-0001-6891-3840, Lyle, J ORCID: 0000-0001-9670-5854 and Nowak, BF ORCID: 0000-0002-0347-643X 2019 , 'Muscle melanisation in sand flathead (Platycephalus bassensis) and links to elevated zinc levels' , Marine Pollution Bulletin, vol. 149 , pp. 1-7 , doi: 10.1016/j.marpolbul.2019.110493.

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Abstract

Melanisation of muscle, observed as black pigmentation of the normally white flesh, has been reported in sand flathead from Tasmania and investigated in this study. There was a significant difference in the presence of melanised muscle in sand flathead from two sites within the Tamar Estuary (northern Tasmania), with higher proportion of sand flathead from Deceitful Cove with this condition. Presence of melanisation was not related to length or weight of the fish. No parasitic infections were detected in the muscles of the affected sand flathead. However, concentration of zinc in melanised regions of muscle in the affected fish was significantly higher, about 1.7 to 1.8 times, than non-melanised regions of muscle in the same fish. Furthermore, the concentration of zinc in melanised regions of affected fish was on average about 2.0 times higher when compared to muscle of unaffected fish that had no melanised spots.

Item Type: Article
Authors/Creators:Ooi, CK and Ware, M and Lewis, T and Lyle, J and Nowak, BF
Keywords: muscle melanisation, heavy metal, zinc, sand flathead, Platycephalus bassensis
Journal or Publication Title: Marine Pollution Bulletin
Publisher: Pergamon-Elsevier Science Ltd
ISSN: 0025-326X
DOI / ID Number: 10.1016/j.marpolbul.2019.110493
Copyright Information:

Copyright 2019 Elsevier Ltd.

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