Characterising seabird vessel interactions associated with demersal ocean trawling: vessel attendance by birds depends on intrinsic and extrinsic predictors
Seabirds are declining on a global scale, and this trend is concerning as they play an important role in the marine ecosystem. The decline is due to multiple reasons, but harvest fisheries are a major contributor. The impact of fisheries, however, appears to vary; demersal trawlers cause mortality o...
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Online Access: | https://doi.org/10.3354/esr01100 http://ecite.utas.edu.au/147742 |
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ftunivtasecite:oai:ecite.utas.edu.au:147742 2023-05-15T16:00:57+02:00 Characterising seabird vessel interactions associated with demersal ocean trawling: vessel attendance by birds depends on intrinsic and extrinsic predictors Barnes, TC Candy, SG Johnson, DD 2021 application/pdf https://doi.org/10.3354/esr01100 http://ecite.utas.edu.au/147742 en eng Inter-Research http://ecite.utas.edu.au/147742/1/147742 - Characterising seabird vessel interactions associated with demersal ocean.pdf http://dx.doi.org/10.3354/esr01100 Barnes, TC and Candy, SG and Johnson, DD, Characterising seabird vessel interactions associated with demersal ocean trawling: vessel attendance by birds depends on intrinsic and extrinsic predictors, Endangered Species Research, 44 pp. 327-338. ISSN 1863-5407 (2021) [Refereed Article] http://ecite.utas.edu.au/147742 Environmental Sciences Ecological applications Bioavailability and ecotoxicology Refereed Article PeerReviewed 2021 ftunivtasecite https://doi.org/10.3354/esr01100 2021-12-27T23:17:58Z Seabirds are declining on a global scale, and this trend is concerning as they play an important role in the marine ecosystem. The decline is due to multiple reasons, but harvest fisheries are a major contributor. The impact of fisheries, however, appears to vary; demersal trawlers cause mortality of many birds in some areas and very few in others. Fishery-dependent monitoring is required to understand this impact on seabirds, and particularly to better understand the variable impact of demersal trawling. We employed a targeted observer program to gather data on seabird assemblages, catastrophic interactions with trawl vessels and predictors of vessel attendance by the seabirds. The latter is a useful proxy for catastrophic interactions and provides information on potential mitigation. Throughout the program period, 104992 seabirds from ~21 species attended New South Wales (NSW) ocean demersal trawlers. These species included 7 species of petrel and albatross listed by the IUCN, including the flesh footed shearwater Ardenna carneipes and wandering albatross Diomedea exulans . Two catastrophic interactions were recorded, and intrinsic and extrinsic predictors of vessel attendance (e.g. offal discharge and wind, respectively) were characterised. The results of the study will provide information to managers, with the goal of ensuring the sustainability of NSW ocean trawlingin particular its coexistence with threatened seabirds. The NSW Ocean Trawl fishery appears to directly harm very few seabirds which is not always the case when considering worldwide trawl fisheries. Predictors of attendance such as space, time and offal discharge can potentially be used to mitigate the attractiveness of trawlers to seabirds. Article in Journal/Newspaper Diomedea exulans Wandering Albatross eCite UTAS (University of Tasmania) Endangered Species Research 44 327 338 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Environmental Sciences Ecological applications Bioavailability and ecotoxicology |
spellingShingle |
Environmental Sciences Ecological applications Bioavailability and ecotoxicology Barnes, TC Candy, SG Johnson, DD Characterising seabird vessel interactions associated with demersal ocean trawling: vessel attendance by birds depends on intrinsic and extrinsic predictors |
topic_facet |
Environmental Sciences Ecological applications Bioavailability and ecotoxicology |
description |
Seabirds are declining on a global scale, and this trend is concerning as they play an important role in the marine ecosystem. The decline is due to multiple reasons, but harvest fisheries are a major contributor. The impact of fisheries, however, appears to vary; demersal trawlers cause mortality of many birds in some areas and very few in others. Fishery-dependent monitoring is required to understand this impact on seabirds, and particularly to better understand the variable impact of demersal trawling. We employed a targeted observer program to gather data on seabird assemblages, catastrophic interactions with trawl vessels and predictors of vessel attendance by the seabirds. The latter is a useful proxy for catastrophic interactions and provides information on potential mitigation. Throughout the program period, 104992 seabirds from ~21 species attended New South Wales (NSW) ocean demersal trawlers. These species included 7 species of petrel and albatross listed by the IUCN, including the flesh footed shearwater Ardenna carneipes and wandering albatross Diomedea exulans . Two catastrophic interactions were recorded, and intrinsic and extrinsic predictors of vessel attendance (e.g. offal discharge and wind, respectively) were characterised. The results of the study will provide information to managers, with the goal of ensuring the sustainability of NSW ocean trawlingin particular its coexistence with threatened seabirds. The NSW Ocean Trawl fishery appears to directly harm very few seabirds which is not always the case when considering worldwide trawl fisheries. Predictors of attendance such as space, time and offal discharge can potentially be used to mitigate the attractiveness of trawlers to seabirds. |
format |
Article in Journal/Newspaper |
author |
Barnes, TC Candy, SG Johnson, DD |
author_facet |
Barnes, TC Candy, SG Johnson, DD |
author_sort |
Barnes, TC |
title |
Characterising seabird vessel interactions associated with demersal ocean trawling: vessel attendance by birds depends on intrinsic and extrinsic predictors |
title_short |
Characterising seabird vessel interactions associated with demersal ocean trawling: vessel attendance by birds depends on intrinsic and extrinsic predictors |
title_full |
Characterising seabird vessel interactions associated with demersal ocean trawling: vessel attendance by birds depends on intrinsic and extrinsic predictors |
title_fullStr |
Characterising seabird vessel interactions associated with demersal ocean trawling: vessel attendance by birds depends on intrinsic and extrinsic predictors |
title_full_unstemmed |
Characterising seabird vessel interactions associated with demersal ocean trawling: vessel attendance by birds depends on intrinsic and extrinsic predictors |
title_sort |
characterising seabird vessel interactions associated with demersal ocean trawling: vessel attendance by birds depends on intrinsic and extrinsic predictors |
publisher |
Inter-Research |
publishDate |
2021 |
url |
https://doi.org/10.3354/esr01100 http://ecite.utas.edu.au/147742 |
genre |
Diomedea exulans Wandering Albatross |
genre_facet |
Diomedea exulans Wandering Albatross |
op_relation |
http://ecite.utas.edu.au/147742/1/147742 - Characterising seabird vessel interactions associated with demersal ocean.pdf http://dx.doi.org/10.3354/esr01100 Barnes, TC and Candy, SG and Johnson, DD, Characterising seabird vessel interactions associated with demersal ocean trawling: vessel attendance by birds depends on intrinsic and extrinsic predictors, Endangered Species Research, 44 pp. 327-338. ISSN 1863-5407 (2021) [Refereed Article] http://ecite.utas.edu.au/147742 |
op_doi |
https://doi.org/10.3354/esr01100 |
container_title |
Endangered Species Research |
container_volume |
44 |
container_start_page |
327 |
op_container_end_page |
338 |
_version_ |
1766396962522791936 |