Are fish sensitive to trawling recovering in European waters?

Anna Rindorf*, Henrik Gislason, Dave Reid

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

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Abstract

For the past couple of decades, the fishing pressure induced by towed demersal gear has decreased and this decrease may have allowed the number of sensitive fish in the sea to increase. Here we use the fact that the sensitivity of fish to trawl induced mortality depends on the life history of the fish species as well as on its susceptibility to towed demersal gear to identify species sensitive to towed demersal gear. We find that the sensitive species thus identified correspond well with the species classified by IUCN as threatened. Using trawl surveys in European Atlantic waters from 36oN to 62oN and weighing the influence of each survey with its variability around the long-term development, we estimated combined indicators of the change in abundance of each species. The majority of the sensitive species increased in numbers after 2000, with the most notable exceptions being starry ray and wolffish. These two species both showed continued decline since their highest abundance in the mid 1980’s. The increase in most of the species was not coupled to limitations in allowed catches, as most of the species have no species specific catch limit.
Original languageEnglish
Title of host publicationASC abstracts and CM-documents 2019
Number of pages1
PublisherInternational Council for the Exploration of the Sea (ICES)
Publication date2019
Article numberH:634
ISBN (Electronic)978-87-7482-238-7
Publication statusPublished - 2019
EventICES Annual Science Conference 2019: ASC 2019 - Gothenburg, Sweden
Duration: 9 Sep 201912 Sep 2019
https://www.ices.dk/news-and-events/asc/asc2019/Pages/default.aspx

Conference

ConferenceICES Annual Science Conference 2019
CountrySweden
CityGothenburg
Period09/09/201912/09/2019
Internet address

Cite this

Rindorf, A., Gislason, H., & Reid, D. (2019). Are fish sensitive to trawling recovering in European waters? In ASC abstracts and CM-documents 2019 [H:634] International Council for the Exploration of the Sea (ICES).
Rindorf, Anna ; Gislason, Henrik ; Reid, Dave. / Are fish sensitive to trawling recovering in European waters?. ASC abstracts and CM-documents 2019. International Council for the Exploration of the Sea (ICES), 2019.
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Rindorf, A, Gislason, H & Reid, D 2019, Are fish sensitive to trawling recovering in European waters? in ASC abstracts and CM-documents 2019., H:634, International Council for the Exploration of the Sea (ICES), ICES Annual Science Conference 2019, Gothenburg, Sweden, 09/09/2019.

Are fish sensitive to trawling recovering in European waters? / Rindorf, Anna; Gislason, Henrik; Reid, Dave.

ASC abstracts and CM-documents 2019. International Council for the Exploration of the Sea (ICES), 2019. H:634.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

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AU - Reid, Dave

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AB - For the past couple of decades, the fishing pressure induced by towed demersal gear has decreased and this decrease may have allowed the number of sensitive fish in the sea to increase. Here we use the fact that the sensitivity of fish to trawl induced mortality depends on the life history of the fish species as well as on its susceptibility to towed demersal gear to identify species sensitive to towed demersal gear. We find that the sensitive species thus identified correspond well with the species classified by IUCN as threatened. Using trawl surveys in European Atlantic waters from 36oN to 62oN and weighing the influence of each survey with its variability around the long-term development, we estimated combined indicators of the change in abundance of each species. The majority of the sensitive species increased in numbers after 2000, with the most notable exceptions being starry ray and wolffish. These two species both showed continued decline since their highest abundance in the mid 1980’s. The increase in most of the species was not coupled to limitations in allowed catches, as most of the species have no species specific catch limit.

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BT - ASC abstracts and CM-documents 2019

PB - International Council for the Exploration of the Sea (ICES)

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Rindorf A, Gislason H, Reid D. Are fish sensitive to trawling recovering in European waters? In ASC abstracts and CM-documents 2019. International Council for the Exploration of the Sea (ICES). 2019. H:634