Avoiding grey seal depredation in the Baltic Sea while increasing catch rates of cod
The escalating conflict between gillnet fisheries and the growing seal populations in Baltic Sea has increased the need to reduce direct effects in form of reduced or damaged catches. This study describes the design and catch rates of 20 different seal safe cod ( Gadus morhua ) pot designs suitable...
Published in: | Fisheries Research |
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Language: | English |
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2023
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Online Access: | https://orbit.dtu.dk/en/publications/e7e4b442-9fd4-4780-be0a-a1594de96041 https://doi.org/10.1016/j.fishres.2023.106609 https://backend.orbit.dtu.dk/ws/files/306526935/1_s2.0_S0165783623000024_main.pdf |
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ftdtupubl:oai:pure.atira.dk:publications/e7e4b442-9fd4-4780-be0a-a1594de96041 2024-09-09T19:29:50+00:00 Avoiding grey seal depredation in the Baltic Sea while increasing catch rates of cod Kindt-Larsen, Lotte Berg, Casper Willestofte Hedgärde, Maria Königson, Sara 2023 application/pdf https://orbit.dtu.dk/en/publications/e7e4b442-9fd4-4780-be0a-a1594de96041 https://doi.org/10.1016/j.fishres.2023.106609 https://backend.orbit.dtu.dk/ws/files/306526935/1_s2.0_S0165783623000024_main.pdf eng eng https://orbit.dtu.dk/en/publications/e7e4b442-9fd4-4780-be0a-a1594de96041 info:eu-repo/semantics/openAccess Kindt-Larsen , L , Berg , C W , Hedgärde , M & Königson , S 2023 , ' Avoiding grey seal depredation in the Baltic Sea while increasing catch rates of cod ' , Fisheries Research , vol. 261 , 106609 . https://doi.org/10.1016/j.fishres.2023.106609 Cod pots Atlantic cod Pot fishery Alternative gear /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2023 ftdtupubl https://doi.org/10.1016/j.fishres.2023.106609 2024-08-13T00:03:06Z The escalating conflict between gillnet fisheries and the growing seal populations in Baltic Sea has increased the need to reduce direct effects in form of reduced or damaged catches. This study describes the design and catch rates of 20 different seal safe cod ( Gadus morhua ) pot designs suitable for the Baltic Sea. Catches in numbers of individuals and total catch weight were recorded in 2762 pot hauls with pots varying in terms of size, shape, number of entrances, entrance length, pot placement in relation to the sea floor and catch holding chamber. The aim was to investigate the how the different designs and soak times affected the catch rates under similar conditions. Volume and soak time was significantly positively correlated with catch rates and round bottom-standing pots with a fish holding chamber, funnels and 5 entrances had the highest catch rates. The findings are important for the development of cod pots, which can allow the fishers to continue fishing in areas of high seal density with static gear and hence low-carbon emission and minimum bycatch of marine mammals and sea birds. Article in Journal/Newspaper atlantic cod Gadus morhua Technical University of Denmark: DTU Orbit Fisheries Research 261 106609 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Cod pots Atlantic cod Pot fishery Alternative gear /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
Cod pots Atlantic cod Pot fishery Alternative gear /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Kindt-Larsen, Lotte Berg, Casper Willestofte Hedgärde, Maria Königson, Sara Avoiding grey seal depredation in the Baltic Sea while increasing catch rates of cod |
topic_facet |
Cod pots Atlantic cod Pot fishery Alternative gear /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
The escalating conflict between gillnet fisheries and the growing seal populations in Baltic Sea has increased the need to reduce direct effects in form of reduced or damaged catches. This study describes the design and catch rates of 20 different seal safe cod ( Gadus morhua ) pot designs suitable for the Baltic Sea. Catches in numbers of individuals and total catch weight were recorded in 2762 pot hauls with pots varying in terms of size, shape, number of entrances, entrance length, pot placement in relation to the sea floor and catch holding chamber. The aim was to investigate the how the different designs and soak times affected the catch rates under similar conditions. Volume and soak time was significantly positively correlated with catch rates and round bottom-standing pots with a fish holding chamber, funnels and 5 entrances had the highest catch rates. The findings are important for the development of cod pots, which can allow the fishers to continue fishing in areas of high seal density with static gear and hence low-carbon emission and minimum bycatch of marine mammals and sea birds. |
format |
Article in Journal/Newspaper |
author |
Kindt-Larsen, Lotte Berg, Casper Willestofte Hedgärde, Maria Königson, Sara |
author_facet |
Kindt-Larsen, Lotte Berg, Casper Willestofte Hedgärde, Maria Königson, Sara |
author_sort |
Kindt-Larsen, Lotte |
title |
Avoiding grey seal depredation in the Baltic Sea while increasing catch rates of cod |
title_short |
Avoiding grey seal depredation in the Baltic Sea while increasing catch rates of cod |
title_full |
Avoiding grey seal depredation in the Baltic Sea while increasing catch rates of cod |
title_fullStr |
Avoiding grey seal depredation in the Baltic Sea while increasing catch rates of cod |
title_full_unstemmed |
Avoiding grey seal depredation in the Baltic Sea while increasing catch rates of cod |
title_sort |
avoiding grey seal depredation in the baltic sea while increasing catch rates of cod |
publishDate |
2023 |
url |
https://orbit.dtu.dk/en/publications/e7e4b442-9fd4-4780-be0a-a1594de96041 https://doi.org/10.1016/j.fishres.2023.106609 https://backend.orbit.dtu.dk/ws/files/306526935/1_s2.0_S0165783623000024_main.pdf |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Kindt-Larsen , L , Berg , C W , Hedgärde , M & Königson , S 2023 , ' Avoiding grey seal depredation in the Baltic Sea while increasing catch rates of cod ' , Fisheries Research , vol. 261 , 106609 . https://doi.org/10.1016/j.fishres.2023.106609 |
op_relation |
https://orbit.dtu.dk/en/publications/e7e4b442-9fd4-4780-be0a-a1594de96041 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.fishres.2023.106609 |
container_title |
Fisheries Research |
container_volume |
261 |
container_start_page |
106609 |
_version_ |
1809898922872668160 |