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Cold Induced Abnormal Catches of Sole

Published online by Cambridge University Press:  11 May 2009

J.W. Horwood
Affiliation:
The Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory, Pakefield Road, Lowestoft, NR33 OHT
R.S. Millner
Affiliation:
The Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory, Pakefield Road, Lowestoft, NR33 OHT

Extract

Large catches of sole (Solea solea) were made in early 1996 from the south-western North Sea. Sole suffer physiological damage in waters below 3–4 C. In February 1996 cold water of 3–4 C unusually extended from the Continental coast onto the Dogger Bank. It is likely that the increased catches were due to the consequential distribution and behaviour of the sole, making them more susceptible to capture.

Exceptionally large catches of mature sole (Solea solea (L.)) were made in February 1996 by Lowestoft fishermen from the south-western North Sea. Surprisingly this was not welcome. The UK allocation of the North Sea sole is -4 % of the EU Total Allowable Catch (TAC), and fishermen are restricted nationally, and by the fishing companies, to a tightly managed ration. The Lowestoft Journal (8 March 1996) reported the suspension of a local fishing skipper for not throwing back 5000 kg of sole caught in the Silver Pits. We will show that the abnormal catches were due to exceptionally cold waters.

Sole in the North Sea are at the northern extremity of their range, with sole seldom living in waters below 5°C (Horwood, 1993). In fact, North Sea sole were successfully introduced into Lake Quarun, Egypt, where they lived in temperatures in excess of 30°C (El-Zarka, 1965). Young sole migrate from their shallow inshore nursery grounds, such as the Waddensea, as winter approaches (Creutzberg & Fonds, 1971).

Type
Short Communications
Copyright
Copyright © Marine Biological Association of the United Kingdom 1998

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References

Anon, , 1995. Report of the ICES advisory committee on fishery management, 1994. International Council for the Exploration of the Sea, Copenhagen, Co-operative Research Report, 210, part 1, p. 312.Google Scholar
Becker, G.A., Frey, H. & Wegner, G., 1986. Atlas der temperatur an der oberflache der Nordsee. Deutsches Hydrographisches Institut, Hamburg, Ergd'nzungsheft, B, p. 127.Google Scholar
Creutzberg, F. & Fonds, M., 1971. The seasonal variation in the distribution of some demersal fish species in the Dutch Wadden Sea. Thalassia Jugoslavica, 7, 1323.Google Scholar
El-Zarka, S., 1965. Acclimatization of Solea vulgaris (Linn.) in Lake Quarun, Egypt. journal du Conseil, 28, 126136.CrossRefGoogle Scholar
Horwood, J., 1993. The Bristol Channel sole (Solea solea (L.)): a fisheries case study. Advances in Marine Biology, 29, 215367.CrossRefGoogle Scholar
Loewe, P., 1996. North Sea SST charts. Hamburg: Bundesamt fur Seeschiffahrt und Hydrographie.Google Scholar
Wood, W., 1911. The North Sea fishers and fighters. London: Paul, Trench & Trubner.Google Scholar
Woodhead, P.M.J., 1964a. The death of North Sea fish during the winter of 1962/63, particularly with reference to sole, Solea vulgaris. Helgolander Wissenschaftliche Meeresuntersuchungen, 10, 283300.CrossRefGoogle Scholar
Woodhead, P.M.J., 1964b. A change in the normal diurnal pattern of capture of soles during the severe winter of 1963. Rapportes et Proces-verbeaux des Reunions. Conseil Permanent Internationale pour VExploration de la Mer, 155, 4547.Google Scholar
Woodhead, P.M.J., 1964c. Changes in the behaviour of the sole, Solea vulgaris, during cold winters, and the relation between the winter catch and sea temperature. Helgolander Wissenschaftliche Meeresuntersuchungen, 10, 328342.CrossRefGoogle Scholar