Histological alterations in the Antarctic cod, Trematomus bernacchii from Davis Station, East Antarctica
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...
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ftdeakinunifig:oai:figshare.com:article/20995570 2023-05-15T13:04:53+02:00 Histological alterations in the Antarctic cod, Trematomus bernacchii from Davis Station, East Antarctica Trish Corbett Julie Mondon C King 2011-01-01T00:00:00Z http://hdl.handle.net/10536/DRO/DU:30042270 https://figshare.com/articles/conference_contribution/Histological_alterations_in_the_Antarctic_cod_Trematomus_bernacchii_from_Davis_Station_East_Antarctica/20995570 unknown http://hdl.handle.net/10536/DRO/DU:30042270 https://figshare.com/articles/conference_contribution/Histological_alterations_in_the_Antarctic_cod_Trematomus_bernacchii_from_Davis_Station_East_Antarctica/20995570 All Rights Reserved Uncategorized histology antarctic cod environmental impact Text Conference contribution 2011 ftdeakinunifig 2022-11-17T22:15:36Z 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. Conference Object Adelie penguin Anchorage Island Antarc* Antarctic Antarctica East Antarctica DRO - Deakin Research Online Antarctic The Antarctic East Antarctica Vestfold Hills Anchorage Vestfold Davis Station ENVELOPE(77.968,77.968,-68.576,-68.576) Davis-Station ENVELOPE(77.968,77.968,-68.576,-68.576) Anchorage Island ENVELOPE(-68.214,-68.214,-67.605,-67.605) Kazak ENVELOPE(77.833,77.833,-68.667,-68.667) Kazak Island ENVELOPE(77.838,77.838,-68.663,-68.663) |
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Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Uncategorized histology antarctic cod environmental impact |
spellingShingle |
Uncategorized histology antarctic cod environmental impact Trish Corbett Julie Mondon C King Histological alterations in the Antarctic cod, Trematomus bernacchii from Davis Station, East Antarctica |
topic_facet |
Uncategorized histology antarctic cod environmental impact |
description |
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. |
format |
Conference Object |
author |
Trish Corbett Julie Mondon C King |
author_facet |
Trish Corbett Julie Mondon C King |
author_sort |
Trish Corbett |
title |
Histological alterations in the Antarctic cod, Trematomus bernacchii from Davis Station, East Antarctica |
title_short |
Histological alterations in the Antarctic cod, Trematomus bernacchii from Davis Station, East Antarctica |
title_full |
Histological alterations in the Antarctic cod, Trematomus bernacchii from Davis Station, East Antarctica |
title_fullStr |
Histological alterations in the Antarctic cod, Trematomus bernacchii from Davis Station, East Antarctica |
title_full_unstemmed |
Histological alterations in the Antarctic cod, Trematomus bernacchii from Davis Station, East Antarctica |
title_sort |
histological alterations in the antarctic cod, trematomus bernacchii from davis station, east antarctica |
publishDate |
2011 |
url |
http://hdl.handle.net/10536/DRO/DU:30042270 https://figshare.com/articles/conference_contribution/Histological_alterations_in_the_Antarctic_cod_Trematomus_bernacchii_from_Davis_Station_East_Antarctica/20995570 |
long_lat |
ENVELOPE(77.968,77.968,-68.576,-68.576) ENVELOPE(77.968,77.968,-68.576,-68.576) ENVELOPE(-68.214,-68.214,-67.605,-67.605) ENVELOPE(77.833,77.833,-68.667,-68.667) ENVELOPE(77.838,77.838,-68.663,-68.663) |
geographic |
Antarctic The Antarctic East Antarctica Vestfold Hills Anchorage Vestfold Davis Station Davis-Station Anchorage Island Kazak Kazak Island |
geographic_facet |
Antarctic The Antarctic East Antarctica Vestfold Hills Anchorage Vestfold Davis Station Davis-Station Anchorage Island Kazak Kazak Island |
genre |
Adelie penguin Anchorage Island Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Adelie penguin Anchorage Island Antarc* Antarctic Antarctica East Antarctica |
op_relation |
http://hdl.handle.net/10536/DRO/DU:30042270 https://figshare.com/articles/conference_contribution/Histological_alterations_in_the_Antarctic_cod_Trematomus_bernacchii_from_Davis_Station_East_Antarctica/20995570 |
op_rights |
All Rights Reserved |
_version_ |
1766374404116185088 |