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/10141/622722 https://doi.org/10.1016/j.biocon.2019.108278 |
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ftnhmlondon:oai:nhm.openrepository.com:10141/622722 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, S Anker-Nilssen, T Crawford, R Bond, AL Sigurðsson, GM Glemarec, G Hansen, ES Kadin, M Kindt-Larsen, L Mallory, M Merkel, FR Petersen, A Provencher, J Bærum, KM 2020-04-29T11:05:58Z http://hdl.handle.net/10141/622722 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/10141/622722 Biological Conservation 240 108278 - 108278 openAccess https://creativecommons.org/licenses/by/4.0/ Bycatch Cyclopterus lumpus Fisheries Gillnets North Atlantic Seabirds Journal Article 2020 ftnhmlondon https://doi.org/10.1016/j.biocon.2019.108278 2023-07-11T05:39:13Z 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), self-administered 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. © 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/). The attached file is the published pdf. 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, S Anker-Nilssen, T Crawford, R Bond, AL Sigurðsson, GM Glemarec, G Hansen, ES Kadin, M Kindt-Larsen, L Mallory, M Merkel, FR Petersen, A Provencher, J Bærum, KM 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), self-administered 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. © 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/). The attached file is the published pdf. NHM Repository |
format |
Article in Journal/Newspaper |
author |
Christensen-Dalsgaard, S Anker-Nilssen, T Crawford, R Bond, AL Sigurðsson, GM Glemarec, G Hansen, ES Kadin, M Kindt-Larsen, L Mallory, M Merkel, FR Petersen, A Provencher, J Bærum, KM |
author_facet |
Christensen-Dalsgaard, S Anker-Nilssen, T Crawford, R Bond, AL Sigurðsson, GM Glemarec, G Hansen, ES Kadin, M Kindt-Larsen, L Mallory, M Merkel, FR Petersen, A Provencher, J Bærum, KM |
author_sort |
Christensen-Dalsgaard, S |
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 |
2020 |
url |
http://hdl.handle.net/10141/622722 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/10141/622722 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_ |
1772815778596257792 |