A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey
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, abunda...
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| Format: | Conference Object |
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2019
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| Online Access: | https://eprints.utas.edu.au/41884/ https://www.ccamlr.org/en/wg-fsa-2019/02 |
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ftunivtasmania:oai:eprints.utas.edu.au:41884 |
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openpolar |
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ftunivtasmania:oai:eprints.utas.edu.au:41884 2023-05-15T16:33:53+02:00 A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey Maschette, D Nowara, G Welsford, D 2019 https://eprints.utas.edu.au/41884/ https://www.ccamlr.org/en/wg-fsa-2019/02 unknown Maschette, D orcid:0000-0003-2590-8544 , Nowara, G and Welsford, D 2019 , 'A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey', paper presented at the Commission for the Conservation of Antarctic Marine Living Resources, 28 August 2019, Hobart, Tasmania. mackerel icefish stock assessment Heard Island Conference or Workshop Item PeerReviewed 2019 ftunivtasmania 2022-02-07T23:18:10Z 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. Conference Object Heard Island Icefish McDonald Islands University of Tasmania: UTas ePrints Heard Island Heard Island ENVELOPE(73.510,73.510,-53.117,-53.117) Heard ENVELOPE(73.510,73.510,-53.117,-53.117) McDonald Islands ENVELOPE(72.600,72.600,-53.033,-53.033) |
| institution |
Open Polar |
| collection |
University of Tasmania: UTas ePrints |
| op_collection_id |
ftunivtasmania |
| language |
unknown |
| topic |
mackerel icefish stock assessment Heard Island |
| spellingShingle |
mackerel icefish stock assessment Heard Island Maschette, D Nowara, G 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 |
| topic_facet |
mackerel icefish stock assessment Heard Island |
| description |
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. |
| format |
Conference Object |
| author |
Maschette, D Nowara, G Welsford, D |
| author_facet |
Maschette, D Nowara, G Welsford, D |
| author_sort |
Maschette, D |
| title |
A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey |
| title_short |
A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey |
| title_full |
A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey |
| title_fullStr |
A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey |
| title_full_unstemmed |
A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey |
| title_sort |
preliminary assessment for mackerel icefish (champsocephalus gunnari) in division 58.5.2, based on results from the 2019 random stratified trawl survey |
| publishDate |
2019 |
| url |
https://eprints.utas.edu.au/41884/ https://www.ccamlr.org/en/wg-fsa-2019/02 |
| long_lat |
ENVELOPE(73.510,73.510,-53.117,-53.117) ENVELOPE(73.510,73.510,-53.117,-53.117) ENVELOPE(72.600,72.600,-53.033,-53.033) |
| geographic |
Heard Island Heard Island Heard McDonald Islands |
| geographic_facet |
Heard Island Heard Island Heard McDonald Islands |
| genre |
Heard Island Icefish McDonald Islands |
| genre_facet |
Heard Island Icefish McDonald Islands |
| op_relation |
Maschette, D orcid:0000-0003-2590-8544 , Nowara, G and Welsford, D 2019 , 'A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey', paper presented at the Commission for the Conservation of Antarctic Marine Living Resources, 28 August 2019, Hobart, Tasmania. |
| _version_ |
1766023620667113472 |