Ingestion of fishing gear and entanglements of seabirds: monitoring and implications for management
Fisheries are increasingly adopting ecosystem approaches to better manage impacts on non-target species. Although deliberate dumping of plastics at sea is banned, not all fisheries legislation prohibits discarding of gear (hooks and line) in offal, and compliance is often unknown. Analysis of a 16 y...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/10611/ https://www.sciencedirect.com/science/article/pii/S0006320709004856 |
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ftnerc:oai:nora.nerc.ac.uk:10611 2024-04-28T08:19:38+00:00 Ingestion of fishing gear and entanglements of seabirds: monitoring and implications for management Phillips, Richard A. Ridley, Cindy Reid, Keith Pugh, Philip J.A. Tuck, Geoffrey N. Harrison, Nancy 2010 http://nora.nerc.ac.uk/id/eprint/10611/ https://www.sciencedirect.com/science/article/pii/S0006320709004856 unknown Elsevier Phillips, Richard A.; Ridley, Cindy; Reid, Keith; Pugh, Philip J.A.; Tuck, Geoffrey N.; Harrison, Nancy. 2010 Ingestion of fishing gear and entanglements of seabirds: monitoring and implications for management. Biological Conservation, 143 (2). 501-512. https://doi.org/10.1016/j.biocon.2009.11.020 <https://doi.org/10.1016/j.biocon.2009.11.020> Management Marine Sciences Zoology Ecology and Environment Publication - Article PeerReviewed 2010 ftnerc https://doi.org/10.1016/j.biocon.2009.11.020 2024-04-09T23:33:54Z Fisheries are increasingly adopting ecosystem approaches to better manage impacts on non-target species. Although deliberate dumping of plastics at sea is banned, not all fisheries legislation prohibits discarding of gear (hooks and line) in offal, and compliance is often unknown. Analysis of a 16 year dataset collected at South Georgia indicated that the amount of gear found in association with wandering albatrosses was an order of magnitude greater than in any other species, reflecting their wider foraging range and larger gape. Unlike other taxa, most gear associated with grey-headed albatrosses was from squid and not longline fisheries, and mistaken for natural prey rather than the result of direct interaction. Observed rates of foul-hooking (entanglement during line-hauling) were much higher in giant petrels and wandering albatrosses than black-browed albatrosses, and no grey-headed albatross was affected. The index of wandering albatross gear abundance showed two peaks, the most recent corresponding with a substantial increase in the number of multifilament snoods (gangions), Suggesting that the widespread adoption of a new longline system (Chilean mixed) may have been responsible. Although all identified gear was demersal, given the widespread use of similar hooks, little could be assigned to a specific fishery. Stomach content analysis suggested that 1300-2048 items of gear are currently consumed per annum by the wandering albatross population. Many hooks are completely digested by chicks, long-term effects of which are entirely unknown. We suggest a number of management approaches for addressing the problem of gear discarding, and guidelines for monitoring schemes elsewhere. (C) 2009 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Giant Petrels Wandering Albatross Natural Environment Research Council: NERC Open Research Archive Biological Conservation 143 2 501 512 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Management Marine Sciences Zoology Ecology and Environment |
spellingShingle |
Management Marine Sciences Zoology Ecology and Environment Phillips, Richard A. Ridley, Cindy Reid, Keith Pugh, Philip J.A. Tuck, Geoffrey N. Harrison, Nancy Ingestion of fishing gear and entanglements of seabirds: monitoring and implications for management |
topic_facet |
Management Marine Sciences Zoology Ecology and Environment |
description |
Fisheries are increasingly adopting ecosystem approaches to better manage impacts on non-target species. Although deliberate dumping of plastics at sea is banned, not all fisheries legislation prohibits discarding of gear (hooks and line) in offal, and compliance is often unknown. Analysis of a 16 year dataset collected at South Georgia indicated that the amount of gear found in association with wandering albatrosses was an order of magnitude greater than in any other species, reflecting their wider foraging range and larger gape. Unlike other taxa, most gear associated with grey-headed albatrosses was from squid and not longline fisheries, and mistaken for natural prey rather than the result of direct interaction. Observed rates of foul-hooking (entanglement during line-hauling) were much higher in giant petrels and wandering albatrosses than black-browed albatrosses, and no grey-headed albatross was affected. The index of wandering albatross gear abundance showed two peaks, the most recent corresponding with a substantial increase in the number of multifilament snoods (gangions), Suggesting that the widespread adoption of a new longline system (Chilean mixed) may have been responsible. Although all identified gear was demersal, given the widespread use of similar hooks, little could be assigned to a specific fishery. Stomach content analysis suggested that 1300-2048 items of gear are currently consumed per annum by the wandering albatross population. Many hooks are completely digested by chicks, long-term effects of which are entirely unknown. We suggest a number of management approaches for addressing the problem of gear discarding, and guidelines for monitoring schemes elsewhere. (C) 2009 Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Phillips, Richard A. Ridley, Cindy Reid, Keith Pugh, Philip J.A. Tuck, Geoffrey N. Harrison, Nancy |
author_facet |
Phillips, Richard A. Ridley, Cindy Reid, Keith Pugh, Philip J.A. Tuck, Geoffrey N. Harrison, Nancy |
author_sort |
Phillips, Richard A. |
title |
Ingestion of fishing gear and entanglements of seabirds: monitoring and implications for management |
title_short |
Ingestion of fishing gear and entanglements of seabirds: monitoring and implications for management |
title_full |
Ingestion of fishing gear and entanglements of seabirds: monitoring and implications for management |
title_fullStr |
Ingestion of fishing gear and entanglements of seabirds: monitoring and implications for management |
title_full_unstemmed |
Ingestion of fishing gear and entanglements of seabirds: monitoring and implications for management |
title_sort |
ingestion of fishing gear and entanglements of seabirds: monitoring and implications for management |
publisher |
Elsevier |
publishDate |
2010 |
url |
http://nora.nerc.ac.uk/id/eprint/10611/ https://www.sciencedirect.com/science/article/pii/S0006320709004856 |
genre |
Giant Petrels Wandering Albatross |
genre_facet |
Giant Petrels Wandering Albatross |
op_relation |
Phillips, Richard A.; Ridley, Cindy; Reid, Keith; Pugh, Philip J.A.; Tuck, Geoffrey N.; Harrison, Nancy. 2010 Ingestion of fishing gear and entanglements of seabirds: monitoring and implications for management. Biological Conservation, 143 (2). 501-512. https://doi.org/10.1016/j.biocon.2009.11.020 <https://doi.org/10.1016/j.biocon.2009.11.020> |
op_doi |
https://doi.org/10.1016/j.biocon.2009.11.020 |
container_title |
Biological Conservation |
container_volume |
143 |
container_issue |
2 |
container_start_page |
501 |
op_container_end_page |
512 |
_version_ |
1797583035975073792 |