Histological alterations in the Antarctic cod, Trematomus bernacchii from Davis Station, East Antarctica

Corbett, P., Mondon, J. and King, C.K. 2011, Histological alterations in the Antarctic cod, Trematomus bernacchii from Davis Station, East Antarctica, in Enviro Tox 2011 : Sharing knowledge for a healthier environment, SETAC-AU, [Darwin, N.T.], pp. 61-62.

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Title Histological alterations in the Antarctic cod, Trematomus bernacchii from Davis Station, East Antarctica
Formatted title Histological alterations in the Antarctic cod, Trematomus bernacchii from Davis Station, East Antarctica
Author(s) Corbett, P.
Mondon, J.
King, C.K.
Conference name Enviro Tox (2011 : Darwin, N.T.)
Conference location Darwin, N.T.
Conference dates 17-20 Apr. 2011
Title of proceedings Enviro Tox 2011 : Sharing knowledge for a healthier environment
Editor(s) [Unknown]
Publication date 2011
Conference series Enviro Tox
Start page 61
End page 62
Publisher SETAC-AU
Place of publication [Darwin, N.T.]
Keyword(s) histology
antarctic cod
environmental impact
Summary During the summer season 2009/10, a comprehensive environmental impact assessment of the sewage discharge was conducted at Davis Station in the Vestfold Hills region of East Antarctica. As part of this project, a survey of the histology of liver, gill, gonad and muscle tissues in the Antarctic rock cod Trematomus bernacchii from nearshore sites in the receiving environment close to Davis Station in was completed. Fish from 4 sites were examined; 1 site adjacent to the Davis Station sewage outfall (within 500 m of the point of discharge), 2 sites approximately 2 km from the outfall (Anchorage Island and Antennae farm), and 1 site approximately 10 km away from the outfall and adjacent to an Adelie penguin population (Kazak Island). All fish sampled from the sewage outfall site exhibited significant histological alterations in all major tissues. Fish from the other 3 sites showed some alterations in either gill and/or liver tissues. Pathological abnormalities present in all fish collected near the sewage outfall included: extensive multifocal cysts of unknown etiology with necrotic liquification; multifocal granuloma with associated inflammation; coagulative necrosis in the liver; and lamellar hyperplasia with associated proliferation and lamella fusion of the gills. Results of this work form part of a weight of evidence approach alongside ecological monitoring, chemical analysis, ecotoxicological testing and dispersal modelling of the discharge plume which is being used to inform and direct upgrades to the Australian Antarctic Divisions operations and current sewage discharge practises at Davis Station.
Language eng
Field of Research 050204 Environmental Impact Assessment
060807 Animal Structure and Function
Socio Economic Objective 960502 Ecosystem Assessment and Management of Antarctic and Sub-Antarctic Environments
HERDC Research category E2 Full written paper - non-refereed / Abstract reviewed
Persistent URL http://hdl.handle.net/10536/DRO/DU:30042270

Document type: Conference Paper
Collection: School of Life and Environmental Sciences
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