Náttúrufræðingurinn

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Náttúrufræðingurinn - 1985, Side 20

Náttúrufræðingurinn - 1985, Side 20
Jonsgárd, Á. 1977. Tables showing the catch of small whales (including minke whales) caught by Norwegians in the period 1938—75, and large whales caught in different North Atlantic waters in the period 1868—1975. — Rep. int. Whal. Commn. 27: 413—426. Kapel, F.O. 1979. Exploitation of large whales in West-Greenland in the twen- tieth century. — Rep. int. Whal. Commn. 29: 197—214. Knudsen, J. 1946. Kaskelotfangst ved Ac- orene. - Naturens verden 30: 289- 297. Martin, A.R. 1982. A link between the sperm whales occuring off Iceland and the Azores. - Mammalia 46 (2): 259- 260. Mitchell, E.D. 1974. Present status of Northwest Atlantic fin and other whale stocks. - Bls. 108-169 í Schevill, W.E. (ritstj.): The whale problem. A status report. Cambridge, Mass. Mitchell, E.D. 1975. Preliminary report of Nova Scotia fishery for sperm whales (Physeter catodon). - Rep. int. Whal. Commn. 25: 226—235. Price, W.S. 1983. Status of whaling in the Lesser Antilles — 1982 August update. — Óbirt skýrsla, Sc/35/PS 1, lögð fyrir vísindanefnd Alþjóðahvalveiðiráðsins, júní 1983, 10 bls. Öynes, P. 1957. Om spermhvalen. — Fauna 10 (4): 125-132. SUMMARY A hand harpoon found in a sperm whale (Physeter macroc- ephalus) caught off Iceland. by Jóhdnn Sigurjónsson Marine Research Institute P. O. Box 390 Reykjavík For management purposes sperm whal- es (Physeter macrocepahalus) in the North-Atlantic Ocean have been treated as a single stock (Anon. 1981). A west-east nrovement (from the coast of Nova-Scotia to the North-West coast of Spain) of North-Atlantic sperm whales has been shown by one mark-recapture (Mitchell 1975). The present note gives the second proof for a long distance movement of a sperm whale within this ocean, and the first direct proof for a movement of a male sperm whale from lower latitudes of the North-Atlantic to the areas west of Iceland. On 2nd August, 1981 a hand harpoon was found lodged in a 46 ft male sperm whale caught by an Icelandic whaling vess- el (Hvalur 8) on the grounds west off Iceland (ca. 65°40’N, 28°45’W). The har- poon (Figs 2—4), with að nylon rope attac- hed, was found to be identical to those presently used in the open-boat whaling off the Azores and Madeira (Clarke 1954, 1981, Anon. 1980). More direct indication of the orgin of the harpoon is Martin’s (1982) discovery of the actual owner of the harpoon. The owner claims to have lost his harpoon into the whale in question south of Flores (an island in the Azores archipel- ago) about 1590 n.m. south of the catch position, little less than one year earlier. Thus the finding of the harpoon suggests a link between male sperm whales migrating seasonally towards the catch grounds west of Iceland and the breeding units off the Azores. Furthermore, it may also support the hypothesis of a single stock of North- Atlantic sperm whales. 14

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