What’s the catch with lumpsuckers? A North Atlantic study of seabird bycatch in lumpsucker gillnet fisheries
Worldwide, incidental bycatch in fisheries is a conservation threat to many seabird species. Although knowledge on bycatch of seabirds has increased in the last decade, most stems from longline fisheries and the impacts of coastal gillnet fisheries are poorly understood. Gillnet fishing for North At...
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Online Access: | http://hdl.handle.net/10141/623036 https://doi.org/10.1016/j.biocon.2019.108278 |
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ftnhmlondon:oai:nhm.openrepository.com:10141/623036 2023-07-30T04:04:23+02:00 What’s the catch with lumpsuckers? A North Atlantic study of seabird bycatch in lumpsucker gillnet fisheries Christensen-Dalsgaard, Signe Anker-Nilssen, Tycho Crawford, Rory Bond, AL Sigurðsson, Guðjón Már Glemarec, Gildas Hansen, Erpur Snær Kadin, Martina Kindt-Larsen, Lotte Mallory, Mark Merkel, Flemming Ravn Petersen, Aevar Provencher, Jennifer Bærum, Kim Magnus 2022-11-25T16:03:42Z http://hdl.handle.net/10141/623036 https://doi.org/10.1016/j.biocon.2019.108278 en eng Elsevier BV Signe Christensen-Dalsgaard, Tycho Anker-Nilssen, Rory Crawford, Alexander Bond, Guðjón Már Sigurðsson, Gildas Glemarec, Erpur Snær Hansen, Martina Kadin, Lotte Kindt-Larsen, Mark Mallory, Flemming Ravn Merkel, Aevar Petersen, Jennifer Provencher, Kim Magnus Bærum, What’s the catch with lumpsuckers? A North Atlantic study of seabird bycatch in lumpsucker gillnet fisheries, Biological Conservation, Volume 240, 2019, 108278, ISSN 0006-3207, https://doi.org/10.1016/j.biocon.2019.108278. 0006-3207 doi:10.1016/j.biocon.2019.108278 http://hdl.handle.net/10141/623036 1873-2917 Biological Conservation 240 108278-108278 openAccess https://creativecommons.org/licenses/by/4.0/ bycatch Cyclopterus lumpus fisheries gillnets North Atlantic seabirds Journal Article 2022 ftnhmlondon https://doi.org/10.1016/j.biocon.2019.108278 2023-07-11T05:41:06Z Worldwide, incidental bycatch in fisheries is a conservation threat to many seabird species. Although knowledge on bycatch of seabirds has increased in the last decade, most stems from longline fisheries and the impacts of coastal gillnet fisheries are poorly understood. Gillnet fishing for North Atlantic lumpsucker (Cyclopterus lumpus) is one such fishery. We collated and synthesized the available information on seabird bycatch in lumpsucker gillnet fisheries across the entire geographical range to estimate and infer the magnitude of their impact on the affected seabird populations. Most birds killed were diving ducks, cormorants and auks, and each year locally high numbers of seabirds were taken as bycatch. We found large differences in bycatch rates among countries. The estimated mean bycatch in Iceland was 2.43 birds/trip, while the estimates in Norway was 0.44 and 0.39 birds/trip, respectively. The large disparities between estimates might reflect large spatial differences in bycatch rates, but could partly also arise due to distinctions in data recorded by onboard inspectors (Iceland), selfadministered registration (Norway) and direct observations by cameras (Denmark). We show that lumpsucker gillnet fisheries might pose a significant risk to some populations of diving seabirds. However, a distinct data deficiency on seabird bycatch in terms of spatio-temporal coverage and the age and origins of the birds killed, limited our abilities to fully assess the extent and population consequences of the bycatch. Our results highlight the need for a joint effort among countries to standardize monitoring methods to better document the impact of these fisheries on seabirds. Copyright © 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/) NHM Repository Article in Journal/Newspaper Iceland North Atlantic Natural History Museum Repository Norway Biological Conservation 240 108278 |
institution |
Open Polar |
collection |
Natural History Museum Repository |
op_collection_id |
ftnhmlondon |
language |
English |
topic |
bycatch Cyclopterus lumpus fisheries gillnets North Atlantic seabirds |
spellingShingle |
bycatch Cyclopterus lumpus fisheries gillnets North Atlantic seabirds Christensen-Dalsgaard, Signe Anker-Nilssen, Tycho Crawford, Rory Bond, AL Sigurðsson, Guðjón Már Glemarec, Gildas Hansen, Erpur Snær Kadin, Martina Kindt-Larsen, Lotte Mallory, Mark Merkel, Flemming Ravn Petersen, Aevar Provencher, Jennifer Bærum, Kim Magnus What’s the catch with lumpsuckers? A North Atlantic study of seabird bycatch in lumpsucker gillnet fisheries |
topic_facet |
bycatch Cyclopterus lumpus fisheries gillnets North Atlantic seabirds |
description |
Worldwide, incidental bycatch in fisheries is a conservation threat to many seabird species. Although knowledge on bycatch of seabirds has increased in the last decade, most stems from longline fisheries and the impacts of coastal gillnet fisheries are poorly understood. Gillnet fishing for North Atlantic lumpsucker (Cyclopterus lumpus) is one such fishery. We collated and synthesized the available information on seabird bycatch in lumpsucker gillnet fisheries across the entire geographical range to estimate and infer the magnitude of their impact on the affected seabird populations. Most birds killed were diving ducks, cormorants and auks, and each year locally high numbers of seabirds were taken as bycatch. We found large differences in bycatch rates among countries. The estimated mean bycatch in Iceland was 2.43 birds/trip, while the estimates in Norway was 0.44 and 0.39 birds/trip, respectively. The large disparities between estimates might reflect large spatial differences in bycatch rates, but could partly also arise due to distinctions in data recorded by onboard inspectors (Iceland), selfadministered registration (Norway) and direct observations by cameras (Denmark). We show that lumpsucker gillnet fisheries might pose a significant risk to some populations of diving seabirds. However, a distinct data deficiency on seabird bycatch in terms of spatio-temporal coverage and the age and origins of the birds killed, limited our abilities to fully assess the extent and population consequences of the bycatch. Our results highlight the need for a joint effort among countries to standardize monitoring methods to better document the impact of these fisheries on seabirds. Copyright © 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/) NHM Repository |
format |
Article in Journal/Newspaper |
author |
Christensen-Dalsgaard, Signe Anker-Nilssen, Tycho Crawford, Rory Bond, AL Sigurðsson, Guðjón Már Glemarec, Gildas Hansen, Erpur Snær Kadin, Martina Kindt-Larsen, Lotte Mallory, Mark Merkel, Flemming Ravn Petersen, Aevar Provencher, Jennifer Bærum, Kim Magnus |
author_facet |
Christensen-Dalsgaard, Signe Anker-Nilssen, Tycho Crawford, Rory Bond, AL Sigurðsson, Guðjón Már Glemarec, Gildas Hansen, Erpur Snær Kadin, Martina Kindt-Larsen, Lotte Mallory, Mark Merkel, Flemming Ravn Petersen, Aevar Provencher, Jennifer Bærum, Kim Magnus |
author_sort |
Christensen-Dalsgaard, Signe |
title |
What’s the catch with lumpsuckers? A North Atlantic study of seabird bycatch in lumpsucker gillnet fisheries |
title_short |
What’s the catch with lumpsuckers? A North Atlantic study of seabird bycatch in lumpsucker gillnet fisheries |
title_full |
What’s the catch with lumpsuckers? A North Atlantic study of seabird bycatch in lumpsucker gillnet fisheries |
title_fullStr |
What’s the catch with lumpsuckers? A North Atlantic study of seabird bycatch in lumpsucker gillnet fisheries |
title_full_unstemmed |
What’s the catch with lumpsuckers? A North Atlantic study of seabird bycatch in lumpsucker gillnet fisheries |
title_sort |
what’s the catch with lumpsuckers? a north atlantic study of seabird bycatch in lumpsucker gillnet fisheries |
publisher |
Elsevier BV |
publishDate |
2022 |
url |
http://hdl.handle.net/10141/623036 https://doi.org/10.1016/j.biocon.2019.108278 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Iceland North Atlantic |
genre_facet |
Iceland North Atlantic |
op_relation |
Signe Christensen-Dalsgaard, Tycho Anker-Nilssen, Rory Crawford, Alexander Bond, Guðjón Már Sigurðsson, Gildas Glemarec, Erpur Snær Hansen, Martina Kadin, Lotte Kindt-Larsen, Mark Mallory, Flemming Ravn Merkel, Aevar Petersen, Jennifer Provencher, Kim Magnus Bærum, What’s the catch with lumpsuckers? A North Atlantic study of seabird bycatch in lumpsucker gillnet fisheries, Biological Conservation, Volume 240, 2019, 108278, ISSN 0006-3207, https://doi.org/10.1016/j.biocon.2019.108278. 0006-3207 doi:10.1016/j.biocon.2019.108278 http://hdl.handle.net/10141/623036 1873-2917 Biological Conservation 240 108278-108278 |
op_rights |
openAccess https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1016/j.biocon.2019.108278 |
container_title |
Biological Conservation |
container_volume |
240 |
container_start_page |
108278 |
_version_ |
1772815786368303104 |