Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/30861
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Survival rates for Nephrops norvegicus discarded from Northern European trawl fisheries
Author(s): Fox, Clive J
Albalat, Amaya
Valentinsson, Daniel
Nilsson, Hans C
Armstrong, Frank
Randall, Peter
Catchpole, Thomas
Contact Email: amaya.albalat@stir.ac.uk
Keywords: Ecology
Aquatic Science
Ecology, Evolution, Behavior and Systematics
Oceanography
Issue Date: Sep-2020
Citation: Fox CJ, Albalat A, Valentinsson D, Nilsson HC, Armstrong F, Randall P & Catchpole T (2020) Survival rates for Nephrops norvegicus discarded from Northern European trawl fisheries. ICES Journal of Marine Science, 77 (5), pp. 1698-1710. https://doi.org/10.1093/icesjms/fsaa037
Abstract: When discarded from bottom trawl fisheries, survival of Nephrops norvegicus may be sufficiently high that this species can be exempted from the EU Landing Obligation. In three studies, Nephrops were sampled from trawlers in northern European waters, and the fate of individuals monitored for a minimum of 13 days in onshore tanks. Winter estimates of captive survival (means ± 95% confidence intervals), including immediate mortality during catch sorting, were 62 ± 2.8% for the West of Scotland, 57 ± 1.8% for the Farne Deeps (North Sea), and 67 ± 5.4% for the Skagerrak. The Farne Deeps fishery is not active in summer, but captive survival rates in summer in the other two areas were reduced to 47 ± 3.4% for West of Scotland and 40 ± 4.8% for the Skagerrak. Linear modelling of the West of Scotland and Skagerrak data suggested that higher survivals in winter were related to colder water or air temperatures, although temperatures during captive observation may also have had an impact. Net modifications in the Skagerrak study had an effect on survival, which was higher for Nephrops sampled from nets equipped with the more selective Swedish sorting grid compared to Seltra trawls.
DOI Link: 10.1093/icesjms/fsaa037
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. This is a pre-copyedited, author-produced PDF of an article accepted for publication in ICES Journal of Marine Science following peer review. The version of record Clive J Fox, Amaya Albalat, Daniel Valentinsson, Hans C Nilsson, Frank Armstrong, Peter Randall, Thomas Catchpole, Survival rates for Nephrops norvegicus discarded from Northern European trawl fisheries, ICES Journal of Marine Science, Volume 77, Issue 5, September 2020, Pages 1698–1710, fsaa037 is available online at: https://doi.org/10.1093/icesjms/fsaa037
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