Trends in the biomass, spatial distribution and size composition of snow crab (Chionoecetes opilio) based on the multi-species bottom trawl survey of the southern Gulf of St. Lawrence, 1980-2016: Fs70-5/2017-050E-PDF

“The research vessel bottom-trawl survey of the southern Gulf of St. Lawrence undertaken each September (RV survey) provides reliable standardized indices of biomass, spatial distribution and habitat use of commercial-sized male snow crab (Chionoecetes opilio) for 2001 to 2016 and of all snow crab (aggregated index) for 1980 to 2016. This document provides an update for these indices based on the results of the 2016 RV survey. This information was provided in support of the regional snow crab assessment process that took place in Moncton, NB on January 25 and 26, 2017. Of particular note, the RV survey confirmed an important increase in the biomass of commercial-sized adult male snow crab in 2016 as was also estimated by the dedicated snow crab survey. Also, RV surveys since 2012 had captured unusually high numbers of small crabs (≤15 mm) in several areas of the southern Gulf of St. Lawrence, whereas catches in 2016 were considerably lower and around values observed in the late 2000s"--Abstract, p. iv.

Permanent link to this Catalogue Record: What is a permanent link?
http://publications.gc.ca/pub?id=9.842638&sl=0
MARC XML Format   MARC HTML Format

Department/Agency Department of Fisheries and Oceans.
Title Trends in the biomass, spatial distribution and size composition of snow crab (Chionoecetes opilio) based on the multi-species bottom trawl survey of the southern Gulf of St. Lawrence, 1980-2016
Series Title Canadian Science Advisory Secretariat (CSAS), research document,
Publication Type Series - View Master Record
Language [English]
Format Electronic
Electronic Document

Archived Content

Information identified as archived is provided for reference, research or recordkeeping purposes. It is not subject to the Government of Canada Web Standards and has not been altered or updated since it was archived. Please contact the authoring department to request a format other than those available.

We invite you to consult the Frequently Asked Questions page for additional information regarding the Archived Content notice.


Having trouble opening this document?

Note: The URLs contained in this/these document(s) may no longer be functional
Note Cover title. “July 2017.”
Date 2017.
Number of Pages v, 14 p. :
Catalogue Number
  • Fs70-5/2017-050E-PDF
Subject Terms Crustaceans, Fishing area, Fisheries management