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The survival of discarded Sepia officinalis in the English Channel

journal contribution
posted on 06.12.2017, 00:00 by A Revill, I Bloor, Emma JacksonEmma Jackson
Cuttlefish are currently the highest yielding cephalopod group harvested in the north-east Atlantic. English Channel cuttlefish show seasonal migrations to and from deep offshore wintering grounds, which results in a large number of smaller cuttlefish within the offshore stocks, some of which are caught by trawlers. Discarding small cuttlefish from trawls may give them the opportunity to migrate inshore and spawn, but only if they survive. This study examined survival rates of small (<15-cm dorsal mantle length) cuttlefish caught on board a commercial beam trawler. Overall, 31% of the small cuttlefish caught remained alive by the time they reached the sorting table (immediate survival rate). This survival rate dropped to 16% after specimens were subsequently held in an on-board aquarium system for up to 72 h (short-term survival rate). Measures that reduce the capture of small cuttlefish in the first place and/or increase their survival could potentially benefit the stocks.

Funding

Category 2 - Other Public Sector Grants Category

History

Volume

22

Issue

2

Start Page

164

End Page

171

Number of Pages

8

eISSN

1365-2400

ISSN

0969-997X

Location

UK

Publisher

Wiley-Blackwell Publishing

Language

en-aus

Peer Reviewed

Yes

Open Access

No

Era Eligible

Yes

Journal

Fisheries management and ecology.

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