Search results
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Preliminary results of the third CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2014
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... (Parker et al. 2013). In this paper we provide preliminary results of the third survey in the time series ... . The objectives of this third survey were: (i) To carry out a longline survey to monitor subadult ... ) To sample additional experimental stations in an adjacent area to identify areas of high subadult ...
Meeting Document : WG-SAM-14/24 : Author(s): S. Mormede, S.J. Parker, S.M. Hanchet, A. Dunn (New Zealand) and S. Gregory (United Kingdom)
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Connectivity and population structure in Pleuragramma antarcticum along the west Antarctic Peninsula
populations at 1) the north tip of the Peninsula, and 2) the southern WAP encompassing Charcot Island and ... Marguerite Bay, with no mixing between. The presence of a single length mode at Charcot Island and Marguerite ... connectivity, by testing between rival hypotheses of population segregation and linkage. If independent ... , reduction in sea-ice along the WAP may lead to extinction of local populations through drastic mortality of ...
Meeting Document : WG-FSA-10/16 : Author(s): J. Ashford, J. Ferguson, A. Piñones, J. Torres and W. Fraser
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LENGTH-BASED ASSESSMENT FOR MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3
the population numbers‐at‐length. A comparison of this method and the existing age‐based CMIX/GYM ... ) in sub‐area 48.3 employs the CMIX and GYM packages, which derives population numbers‐at‐age and ... accurate identification of age cohorts from the survey data. In this paper we describe a length‐based ... approach that removes the problem of cohort determination. A stratified bootstrap technique (consistent ...
Meeting Document : WG-FSA-09/27 : Author(s): R.M. Hillary (Australia), C.T.T. Edwards, R.E. Mitchel and D.J. Agnew (United Kingdom)
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AFRICAN IUU CAPACITY BUILDING WORKSHOP AND EXPENDITURE FROM THE CDS FUND – REPORT TO CCAMLR-XXIX
of holding similar regional events in future years. Background 2. At CCAMLR-XXVII the Commission ... -05/B, paragraph B2(ix) on the progress of a proposal for expenditure from the CDS Fund to conduct an ... African capacity building event aimed at combating IUU fishing. The proposal was submitted to CCAMLR ... Convention Area. The workshop was successful in raising awareness of IUU fishing and CCAMLR more widely and ...
Meeting Document : CCAMLR-XXIX/09 : Author(s): Delegations of Australia, South Africa, the United Kingdom and the CCAMLR Secretariat
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Potentially commercial invertebrates on Ob Bank: Moroteuthis ingens (Oegopsida) and Paralomis aculeata (Anomura) (Division 58.4.4)
during aimed fishery for Lepidonotothen squamifrons. At maximum, the proportion of squid in the total ... prespawning state. The squid aggregation was apparently composed of mating individuals. At has been concluded ... Abstract: The cephalopods of the Antarctic are supposed to have a very high biomass level However ... , they have not been fished nor any fishable aggregations of them detected to date in the CCAMLR ...
Meeting Document : WG-FSA-96/15 : Author(s): Pshenichnov, L.K.
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Net-based verification of acoustic techniques used to identify Antarctic krill
between acoustic backscatter at and 38 kHz (SV120-3B) and at 200 and 120 kHz (Sv200-120) were calculated ... . Using the SDWBA model, dB difference identification ranges based on the length-frequencies of krill in ... of 2-16 dB and (iv) '2 freq 2-12'-with an Sv120-38 range of 2-12 dB The '3 freq model ... identified only 6 of the 16 krill aggregations sampled the nets. contrast the '2 freq model' and ...
Meeting Document : SG-ASAM-09/04 : Author(s): J. Watkins and S. Fielding (United Kingdom)
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Krill fishery report: 2012 update
were fishing, at the time of preparing this report, and 935 t of krill has been reported so far for ... June. The forecast total catch of krill for this season ranges approximately from 108000 to 151000 t ... . In 2010/11, 13 vessels fished for krill in Area 48 and the total catch of krill was 180986 t; two ... vessels used the continuous fishing system. The largest catch of krill was taken off the South Orkney ...
Meeting Document : WG-EMM-12/05 : Author(s): Secretariat
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A proposal for a research plan for the exploratory longline fishery for Dissostichus spp. in 2013/14 in Division 58.4.3a
improve the fit of the model. B 0 is estimated at around 1,400 tonnes and B 2013 /B 0 at around 85 ... WG-FSA 2012 and to progress on modeling tools in order to improve the estimation of current biomass ... . An update of the assessment of Dissostichus eleginoides using a CASAL model and a simple Petersen ... assessment of the stock in 2012 has been retained and updated with a small number of changes to try to ...
Meeting Document : WG-FSA-13/04 : Author(s): A. Rélot-Stirnemann - Submitted on behalf of France
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Observation on the interactions between marine mammals and mid-water krill trawl
conducted visually with the aid of a SLR Camera and a Marine Binocular. Sea surface observation in Subarea ... 48.3 showed that the number of fur seal (Arctocephalus gazelle) around the fishing vessel increased ... from late July to August then decreased in September, and over 85% of the fur seals was observed ... chasing the trawl behind the codend during retrieving of the net. Although large number of Antarctic fur ...
Meeting Document : WG-FSA-2019/60 : Author(s): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu
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Update of the ICESCAPE software routines
Abstract: Updated ICESCAPE routines are submitted and a short review of the software is presented ... . Several recent studies indicate the usefulness of ICESCAPE for standardising Adélie penguin population ... counts taken at potentially different points in a breeding season. Such standardisation admits the ... possibility of, for the first time, comparing Adélie penguin population counts across space and time for all ...
Meeting Document : WG-EMM-12/14