418 



Fishery Bulletin 100(3) 



1100 km: whereas fish released in 

 Godthaab Fjord and Davis Strait 

 and recaptured off Newfoundland 

 (1 and 2, respectively) migrated 

 an average of 1800 km. A single 

 fish recaptured north of the 

 Faroe Islands was released at 

 Ammassalik in eastern Green- 

 land. All recaptured Greenland 

 halibut in Denmark Strait had 

 been released at inshore areas of 

 eastern and southern Greenland 

 or from offshore areas of western 

 Greenland. From the latter area, 

 one fish tagged in Baffin Bay had 

 thus migrated about 2500 km. 

 Recaptured Greenland halibut 

 off Newfoundland were tagged in 

 Davis Strait and Godthaab Fjord. 

 Two fish released from Baffin Bay 

 were recaptured in the northern 

 fjord of Disko Bay (Torsukkattak). 

 A cumulative distribution of esti- 

 mated migration distance for each 

 main release site (Fig. 3) revealed 

 that Greenland halibut from the 

 offshore area of western Green- 

 land were the more frequent long- 

 distance migrants, and only about 

 50% were resident. About 70% 

 of recaptured Greenland halibut 

 from East Greenland fjords mi- 

 grated 400 km or less. Approxi- 

 mately 80% of Greenland halibut 

 from the Qords of southwestern 

 Greenland were resident, whereas 

 the remaining 20% undertook mi- 

 grations of 1000-1200 km. Nearly 

 all Greenland halibut in the north- 

 western fjords were resident and 

 migi-ated less than 100 km. 



Inshore seasonal migration 



Recapture data from the fjords 

 of northwestern Greenland were 

 examined to determine whether 

 recapture location varied sea- 

 sonally, i.e. whether seasonal 

 migrations occurred. The inshore 

 fishery is carried out in all 

 seasons mainly with longlines. 

 Catches tend to peak during the 

 warmer period in July-August, 

 when water is free from ice in 

 the inner part of the fjords, but 

 substantial numbers are also 

 caught from January to June, 

 when waters are covered by ice, in 

 a fishery distributed throughout 



