Home Home

CCAMLR

Commission for the Conservation of Antarctic Marine Living Resources

  • Home
  • Skip to Content
  • Log in

Search form

  • About CCAMLR
  • Conservation measures
  • Science
  • Fisheries
  • Compliance
  • Data
  • Meetings
  • Publications
  • Circulars
  • English
  • Français
  • Русский
  • Español
  • Home
  • Publications
  • CCAMLR Science
  • CCAMLR Science, Volume 2
  • CCAMLR Science, Volume 2 (1995):51–69

Publications

  • Basic Documents
  • Statistical Bulletin
    • Statistical Bulletin - Archive
  • CCAMLR Brochure
  • CCAMLR Science
    • Table of Contents
  • Conservation measures
    • Browse conservation measures
    • Past and present conservation measures
  • Commission reports
  • Scientific Committee reports
  • Fishery Reports
  • Fishery Reports archive
  • Fishing-related documents
  • Manuals
  • Posters and other promotional material
  • Scientific Abstracts
  • Order a publication
Print this page
Increase font size
Decrease font size

CCAMLR Science, Volume 2 (1995):51–69

Journal Volume:
CCAMLR Science, Volume 2
Page Numbers:
51–69
Author(s):
Pilling, G. and G. Parkes
download attachmentDownload (1.1 MB)

Performance and geometry of the FP-120 trawl used during UK fish stock assessment surveys around South Georgia, Subarea 48.3

Abstract / Description: 

Methods for calculating the horizontal opening (and, thus, swept area) of a bottom trawl are discussed. In situ measurements of the FP-120 trawl used during the 1993/94 UK fish stock assessment survey around South Georgia on the MV Cordella are presented. Regression equations for the estimation of horizontal opening from other, more easily measured variables, such as tow speed and trawl depth, are proposed. Biomass estimates for the major fish species around South Georgia are estimated using a new regression equation. The results of this calculation are compared to values obtained from a previous equation. The resulting difference in biomass estimates is of the order of a 10 to 14% increase, depending upon species.

This page was last modified on 26 Nov 2012

Contact us

Email: ccamlr [at] ccamlr [dot] org
Telephone: +61 3 6210 1111
Fax: +61 3 6224 8744
Address: 181 Macquarie Street, Hobart, 7000, Tasmania, Australia
Postal address: PO Box 213, North Hobart 7002, Tasmania, Australia

 

Quick Links

  • Job vacancies
  • Schedule of Conservation Measures in Force 2021/22
  • Statistical Bulletin
  • CCAMLR Brochure

Recent and Upcoming Meetings

  • Log in
  • CCAMLR e-groups
  • Support
  • Copyright
  • Disclaimer and Privacy Policy
  • Sitemap
  • Intranet
  • Webmail
© Copyright - the Commission for the Conservation of Antarctic Marine Living Resources 2025, All rights reserved.  |  Top of page  |  Site by Eighty Options