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The Arctic Cod. A Study of Research Into the British Trawl by D.H. Cushing, A.R. Gemmell and G.L. Watt (Auth.)

By D.H. Cushing, A.R. Gemmell and G.L. Watt (Auth.)

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1944). W H E R E T H E A R C T I C COD L I V E 49 Much has been learned about the Arctic cod by tagging. Working from a well boat (see Fig. 6, Chapter 1) in the Vestfjord, Hjort (1914) pinned silver buttons to the cod's gill covers with silver wire (Fig. 6). Some of the results of Hjort's tagging experiments in 1911 (1914) are shown in Fig. 7. The tagging of 17th March off Svolvaer shows movement, firstly south-westwards along the edge of the bank towards the mouth of the fjord and secondly northwards between the islands.

J. (1957) The dynamics of exploited fish populations, Fish. , London, II, 19. BLACKER, R. W. (1957) Benthic animals as indicators of hydrographic conditions and climatic change in Svalbard waters, Fish. , London, II, 20, 10. CUTTING, C. L. (1955) Fish Saving, Hill, London. DADE, E. (1933) Sail and Oar, Dent, London. DAVIS, F. M. (1936) Fishing gear of England and Wales, Fish. , London, II, 15, 2. EDWARDS, G. S. F. (C. , Middlesborough. GARSTANG, W. (1900) The impoverishment of the sea, Journ. Mar.

Dannevig (1954) has repeated Hjort's work (Fig. 11) and has recorded recaptures all over the Barents 10° FIG. 11. 20° 30° 40° 50° 60° Recaptures from a tagging experiment in the Vestfjord (Dannevig, 1954). Sea. He shows that, in May and June, fish were recovered from Bear Island and that, from August to October, they were recovered east of Hope Island. This makes the con­ nection between the Lofoten spawning grounds and the Bear Island fishery. In addition the fish were recovered in the south-east Barents Sea, just as the Russian experiments had shown.

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