Search results
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Advances are urgently needed in providing regular estimates of krill stock status based on the available data
Abstract: CCAMLR currently manages the krill fishery in subareas 48.1 to 48.4 using an arbitrary ... measure (the trigger level) which was established in 1991 and is “not related to the status of the krill ... stock”. At the same time, CCAMLR recognises that “advances are urgently needed” specifically because the ... trigger level is not related to the status of the stock. The establishing terms of reference for WG-EMM ...
Meeting Document : WG-EMM-2019/28 : Author(s): S. Hill, J. Hinke, N. Ratcliffe, P. Trathan and G. Watters
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Relationships between distribution of two euphausiid species and oceanographic characteristics in the Ross Sea (January–February 2000)
the Ross Sea area. Activities included acoustic, fishery and physical measurements. More than 2370 ... nautical miles were acoustically sampled to determine the euphausiid biomass; during the echosurvey, every ... between the two species. Euphausia superba and Euphausia crystallorophias swarms were recognized, and ... average length estimated, by means of the three-frequency method, based on the fluid sphere model. Net ...
Meeting Document : WG-EMM-02/38 : Author(s): A. Russo, M. Azzali, E. Biffi, G. Lanciani and E. Paschine (Italy)
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Effects of recruitment variability and natural mortality on Generalised Yield Model projections and the CCAMLR Decision Rules for Antarctic krill
Abstract: AMLR krill sampling data was supplied to the Generalised Yield Model as the " ... ;vector of recruitments" input option to simulate the population dynamics of krill in the Antarctic ... Peninsula region (Subarea 48.1) under various assumptions. The annual proportions of krill less than 36 mm ... in length to the total captured in AMLR net samples in four sampling regions of the Antarctic ...
Meeting Document : WG-EMM-12/26 : Author(s): D. Kinzey, G. Watters and C. Reiss (USA)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2016/17
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region (Subareas 88.1 and SSRUs 88.2A–B ... ), using catch, catch-at-age, and tag-recapture data from 1998 to 2017 and including the results from the ... Ross Sea Shelf survey from 2012 to 2017. The model estimates of unfished biomass and current status ...
Meeting Document : WG-FSA-17/37 Rev. 1 : Author(s): S. Mormede
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2018/19
(Dissostichus mawsoni) in the Ross Sea region (Subareas 88.1 and SSRUs 88.2A-B) is updated and revised using the ... most recent available data for the fishery. The assessment uses reported catch (C2), and tag-recapture ... data for 1998–2019 and age and abundance data from the Ross Sea Shelf survey for 2012–2019. Tag ... estimates using the updated data for 1998–2017, new data from 2018 and 2019, revised growth and length ...
Meeting Document : WG-FSA-2019/08 : Author(s): A. Dunn
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Report on a random stratified trawl survey to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari conducted in the Heard Island region (Division 58.5.2), May–June 2007
Abstract: Since the commencement of commercial fishing in Australian waters on the Heard Island ... plateau in 1997 an annual random stratified trawl survey (RSTS) has been conducted to assess the stocks of ... Patagonian toothfish (Dissostichus eleginoides) and mackerel icefish (Champsocephalus gunnari). The 2007 ... survey had two main aims: • to assess the abundance of juvenile and adult Dissostichus eleginoides on the ...
Meeting Document : WG-FSA-07/46 : Author(s): G.B. Nowara and T. Lamb (Australia)
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Has Notothenia rossii around Elephant Island and the lower South Shetland Islands (Subarea 48.1) recovered from exploitation some 30 years ago?
Abstract: The marbled notothenia (Notothenia rossii) was the first species targeted by commercial ... fishing in the Southern Ocean. The species has been heavily fished around South Georgia and Iles Kerguelen ... in the first half of the 1970’s and at Elephant Island in 1979/80. The closure of the fishery for ... this species was one of the first conservation measures the ‘Commission for the Conservation of ...
Meeting Document : WG-FSA-12/19 : Author(s): K.-H. Kock (Germany) and C.D. Jones (USA)
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INFORMATION ON ILLEGAL FISHING IN STATISTICAL AREA 58 ASSESSMENT OF ILLEGAL FISHING IN FRENCH WATERS AROUND KERGUELEN AND CROZET ISLANDS REPORT OF OBSERVATIONS AND INSPECTIONS IN THE CCAMLR AREA 2009/2010 SEASON (1 JULY 2009 – 15 AUGUST 2010)
Abstract: 1/ Resources deployed by France to fight illegal fishing The system deployed by France ... to fight illegal fishing in the EEZs of the French Antarctic Territories uses both a maritime ... . The French Navy makes available a dedicated patrol vessel and surveillance frigates carrying ... helicopters. The Osiris, a patrol vessel for the Department of Maritime Affairs, originally an illegal fishing ...
Meeting Document : CCAMLR-XXIX/44 : Author(s): Delegation of France
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Preliminary investigations of an assessment model for skates and rays in the Ross Sea
Abstract: This report presents the data and preliminary results from developmental model for ... Antarctic skates in SSRUs 88.1H, 88.1I, 88.1J, & 88.1K of the Ross Sea. The developmental model ... attempted to create a catch history of all skates and rays in the Ross Sea, and integrate these data with ... the available observational data (including tag-recapture data) into a single integrated stock ...
Meeting Document : WG-SAM-07/4 : Author(s): A. Dunn, S.M. Hanchet, S.L. Ballara and M.P. Francis (New Zealand)
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.3a
Abstract: Catch and effort data recorded by all vessels were analyzed using the latest CCAMLR C2 ... and observer data. The stock size estimate for a research block (5843a) was revised following advice ... in the last WG-SAM meeting. We tentatively recalculated a sample size of Dissostichus spp in each ... block in such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ...
Meeting Document : WG-FSA-13/40 : Author(s): Delegation of Japan