by

• Main Authors: Marie Storr-paulsen, Ole A. Jørgensen
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2003
• Subjects: Greenland; Disko Bay; Greenland Institute of Natural Resources; northern shrimp; Pandalus borealis
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.529.2478; http://archive.nafo.int/open/sc/2003/scr03-029.pdf

Since 1988 Greenland Institute of Natural Resources annually has conducted a bottom trawl survey off West Greenland. The main purpose of the survey is to evaluate the biomass and abundance of Northern shrimp (Pandalus borealis), but data on most fish spices have been recorded. This paper presents biomass and abundance estimates together with length frequencies of cod, Greenland halibut, redfish, wolffishes, American plaice and starry skate from the 2002 survey. Further, a recruitment index for Greenland halibut is presented. Materials and Methods The survey covers the offshore areas at West Greenland between 59°00'N and 72°30'N from the 3-mile limit to the 600 m depth contour line and the inshore area Disko Bay (Fig. 1 and Table 1). The survey area is divided into NAFO Divisions, which were further subdivided into three depth strata (0-200, 201- 400 and 401- 600 m) on basis of depth contour lines. The area surveyed has, however, changed throughout the years. From 1988 to 1990 the survey area included Div. 1AN to 1D. In 1991 the Div. 1AN was not covered. In 1992 the survey area was extended to include Div. 1AN to 1F and Disko Bay (Div. 1AX), and this area is now surveyed annually. The survey was originally designed as a shrimp survey and sampling of fish data was not complete in the period 1988-1991. Since 1992 the sampling of fish has improved and the survey is now considered as a combined groundfish/shrimp survey. The survey period was July to September.