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Since 1995, a stratified random spring bottom trawl survey in the NAFO Regulatory Area of Div. 3NO was conducted by Spain. The depth strata surveyed was extended to 1464 m. The main propose of the surveys was obtain abundance and biomass indices for the commercial species in the area. The entire ser...

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Bibliographic Details
Main Authors: Of Divisions No, Population Structure, D. González Troncoso, Esther Román, X. Paz
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2002
Subjects:
Material and Methods
Greenland
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.4035
http://archive.nafo.int/open/sc/2002/scr02-004.pdf
Description
Summary:Since 1995, a stratified random spring bottom trawl survey in the NAFO Regulatory Area of Div. 3NO was conducted by Spain. The depth strata surveyed was extended to 1464 m. The main propose of the surveys was obtain abundance and biomass indices for the commercial species in the area. The entire series of abundance and biomass for Greenland halibut are presented for the period 1996-2001. The indices calculated from the survey series shows an increasing in the Greenland halibut abundance and biomass until 1998, but in following years these values tend to decrease. However, recruitment is good in the last years, although the number of individuals of length over 70 cm. is very low.

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