Artificial lights improve the catchability of snow crab (Chionoecetes opilio) traps
This study investigated the behaviour and commercial catchability of snow crab (Chionoecetes opilio) in response to different low-powered LED lights under laboratory and field conditions. We created a novel choice-experiment in a laboratory setting in which we investigated the behaviour of snow crab...
Published in: | Aquaculture and Fisheries |
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KeAi Communications Co., Ltd.
2017
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Online Access: | https://doi.org/10.1016/j.aaf.2017.05.001 https://doaj.org/article/14550d39666248ddacd8a3e5ff4b8c47 |
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ftdoajarticles:oai:doaj.org/article:14550d39666248ddacd8a3e5ff4b8c47 2024-09-15T18:01:53+00:00 Artificial lights improve the catchability of snow crab (Chionoecetes opilio) traps Khanh Q. Nguyen Paul D. Winger Corey Morris Scott M. Grant 2017-05-01T00:00:00Z https://doi.org/10.1016/j.aaf.2017.05.001 https://doaj.org/article/14550d39666248ddacd8a3e5ff4b8c47 EN eng KeAi Communications Co., Ltd. http://www.sciencedirect.com/science/article/pii/S2468550X16300557 https://doaj.org/toc/2468-550X 2468-550X doi:10.1016/j.aaf.2017.05.001 https://doaj.org/article/14550d39666248ddacd8a3e5ff4b8c47 Aquaculture and Fisheries, Vol 2, Iss 3, Pp 124-133 (2017) Chionoecetes opilio Snow crab LED light Catchability Crab behaviour Aquaculture. Fisheries. Angling SH1-691 article 2017 ftdoajarticles https://doi.org/10.1016/j.aaf.2017.05.001 2024-08-05T17:49:34Z This study investigated the behaviour and commercial catchability of snow crab (Chionoecetes opilio) in response to different low-powered LED lights under laboratory and field conditions. We created a novel choice-experiment in a laboratory setting in which we investigated the behaviour of snow crab in response to coloured LED lights. The results showed that snow crab movement was dependent on light colour, with animals choosing to move toward blue and white lights, away from purple lights, and no detectable effect for green and red lights. We then conducted two field experiments to investigate the effect of the same LED lights on the catch rates of commercial traps during the 2016 snow crab fishery on the east coast of Newfoundland and Labrador. Results from the first field experiment showed that adding white and purple LED lights into baited traps significantly improved Catch Per Unit Effort (CPUE) by 77% and 47% respectively. Results from the second field experiment showed that unbaited traps equipped with only LED lights (no bait), could also catch snow crab in comparable amounts to traditional baited traps, with soak time and depth explaining some of the variation in CPUE. Taken together, these experiments suggest that fishing enterprises can improve their catching performance and profitability by adding LED lights to their traps, or by using LED lights as a bait replacement. Article in Journal/Newspaper Chionoecetes opilio Newfoundland Snow crab Directory of Open Access Journals: DOAJ Articles Aquaculture and Fisheries 2 3 124 133 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Chionoecetes opilio Snow crab LED light Catchability Crab behaviour Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
Chionoecetes opilio Snow crab LED light Catchability Crab behaviour Aquaculture. Fisheries. Angling SH1-691 Khanh Q. Nguyen Paul D. Winger Corey Morris Scott M. Grant Artificial lights improve the catchability of snow crab (Chionoecetes opilio) traps |
topic_facet |
Chionoecetes opilio Snow crab LED light Catchability Crab behaviour Aquaculture. Fisheries. Angling SH1-691 |
description |
This study investigated the behaviour and commercial catchability of snow crab (Chionoecetes opilio) in response to different low-powered LED lights under laboratory and field conditions. We created a novel choice-experiment in a laboratory setting in which we investigated the behaviour of snow crab in response to coloured LED lights. The results showed that snow crab movement was dependent on light colour, with animals choosing to move toward blue and white lights, away from purple lights, and no detectable effect for green and red lights. We then conducted two field experiments to investigate the effect of the same LED lights on the catch rates of commercial traps during the 2016 snow crab fishery on the east coast of Newfoundland and Labrador. Results from the first field experiment showed that adding white and purple LED lights into baited traps significantly improved Catch Per Unit Effort (CPUE) by 77% and 47% respectively. Results from the second field experiment showed that unbaited traps equipped with only LED lights (no bait), could also catch snow crab in comparable amounts to traditional baited traps, with soak time and depth explaining some of the variation in CPUE. Taken together, these experiments suggest that fishing enterprises can improve their catching performance and profitability by adding LED lights to their traps, or by using LED lights as a bait replacement. |
format |
Article in Journal/Newspaper |
author |
Khanh Q. Nguyen Paul D. Winger Corey Morris Scott M. Grant |
author_facet |
Khanh Q. Nguyen Paul D. Winger Corey Morris Scott M. Grant |
author_sort |
Khanh Q. Nguyen |
title |
Artificial lights improve the catchability of snow crab (Chionoecetes opilio) traps |
title_short |
Artificial lights improve the catchability of snow crab (Chionoecetes opilio) traps |
title_full |
Artificial lights improve the catchability of snow crab (Chionoecetes opilio) traps |
title_fullStr |
Artificial lights improve the catchability of snow crab (Chionoecetes opilio) traps |
title_full_unstemmed |
Artificial lights improve the catchability of snow crab (Chionoecetes opilio) traps |
title_sort |
artificial lights improve the catchability of snow crab (chionoecetes opilio) traps |
publisher |
KeAi Communications Co., Ltd. |
publishDate |
2017 |
url |
https://doi.org/10.1016/j.aaf.2017.05.001 https://doaj.org/article/14550d39666248ddacd8a3e5ff4b8c47 |
genre |
Chionoecetes opilio Newfoundland Snow crab |
genre_facet |
Chionoecetes opilio Newfoundland Snow crab |
op_source |
Aquaculture and Fisheries, Vol 2, Iss 3, Pp 124-133 (2017) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2468550X16300557 https://doaj.org/toc/2468-550X 2468-550X doi:10.1016/j.aaf.2017.05.001 https://doaj.org/article/14550d39666248ddacd8a3e5ff4b8c47 |
op_doi |
https://doi.org/10.1016/j.aaf.2017.05.001 |
container_title |
Aquaculture and Fisheries |
container_volume |
2 |
container_issue |
3 |
container_start_page |
124 |
op_container_end_page |
133 |
_version_ |
1810438958037860352 |