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  • CCAMLR-39/BG/15 Rev. 1 - Chair’s Report of the Informal Virtual Meeting of the Standing Committee on Implementation and Compliance (SCIC) (Hobart, Australia, 12 to 21 October 2020)remove

Preliminary results of the E.L. Holmberg 1994 cruise to Subareas 48.3 and 48.2

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Document Number:
WG-FSA-94/29
Author(s):
E.R. Marschoff, B. Prenski, B. Gonzalez, C. Remaggi and C. Balestrini (Argentina)
Accessibility Categories
Open Access (OA)
Review Finalised:
No
Agenda Item(s)
Abstract

A total of 63 hauls and 10 oceanographical legs were obtained. Of these, 44 hauls taken in Subarea 48.3 on a random stratified des n are used to estimate the standing stocks of the main commercial fish species along different methods, as well as their length frequency distributions. A change in surface water temperature of about -0.5 to -1.0 in a period of approximately 20 days was detected around South Georgia Islands. In the Scotia Sea the boundary of the Weddell-Scotia confluence was found within historical limits while surface water (down to 50/70 meters) was warmer than expected. It was also found that the spatial structure of fish populations significantly affects the results of biomass estimates.