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A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey

Citation

Maschette, D and Nowara, G and Welsford, D, A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey, CCAMLR WG-FSA, 28 August 2019, Hobart, Tasmania, pp. WG-FSA-2019/02. (2019) [Refereed Conference Paper]

Official URL: https://www.ccamlr.org/en/wg-fsa-2019/02

Abstract

The annual random stratified trawl survey was undertaken in Division 58.5.2 in the vicinity of Heard Island and McDonald Islands during April 2019. Based on data from this survey, this paper provides a preliminary assessment for mackerel icefish (Champsocephalus gunnari) population structure, abundance and yield in Division 58.5.2 to the west of 79o 20 E using standard CCAMLR methods (CMIX and Generalized Yield Model).

The 2019 survey showed a large 2+ and 3+ cohort in the population. Catches of 527 t in the 2019/20 season and 406 t in the 2020/21 season, respectively, satisfied the CCAMLR decision rules.

Item Details

Item Type:Refereed Conference Paper
Keywords:mackerel icefish, stock assessment, Heard Island
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Fisheries sciences
Research Field:Fisheries management
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - wild caught
Objective Field:Fisheries - wild caught not elsewhere classified
UTAS Author:Maschette, D (Mr Dale Maschette)
UTAS Author:Nowara, G (Ms Gabrielle Nowara)
ID Code:137140
Year Published:2019
Deposited By:Fisheries and Aquaculture
Deposited On:2020-02-03
Last Modified:2020-04-06
Downloads:0

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