Search results
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An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2
, longline and trap sub-fisheries. Compared to the 2014 assessment that was accepted by WG-FSA-14 to be used ... into two periods. All model runs were conducted with the CASAL version 2.30-2012-03-21 that was agreed ... stock biomass B 0 than that obtained in 2014, with an MCMC estimate of 87 077 tonnes (95% CI: 78 500-97 ... eleginoides) fishery at the Heard Island and the McDonald Islands in CCAMLR Division 58.5.2 with data until ...
Meeting Document : WG-FSA-15/52 : Author(s): P. Ziegler and D. Welsford (Australia)
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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
that stratum. Further results will be provided at WG-FSA-14, including age data and comparison with ... Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... abundance from a well-designed survey could be a useful input into the Ross Sea stock assessment model. The ... abundance which could be included as strata in future annual surveys. The survey was successful in ...
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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Revised proposal for a CCAMLR sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea
methodologies. As a result of this review, we propose that the first survey be a pilot, with two main objectives ... Abstract: At its 2010 meeting, the Scientific Committee agreed that a time series of recruitments ... from a well- designed survey in the Ross Sea could be a useful input into the stock assessment model ... survey, the target fish age and length classes to be monitored, appropriate survey strata size and ...
Meeting Document : WG-FSA-11/47 : Author(s): S.M. Hanchet, S. Mormede, S.J. Parker and A. Dunn (New Zealand)
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A history of the exploitation of the Ross Sea, Antarctica
the details of biological exploitation can be so elucidated. It does appear that the Ross Sea ... be the least affected stretch of ocean on Earth, although historical effects were not included in the ... that. An intense extraction of Weddell seals Leptonychotes weddellii by the heroic expeditions and then ... with effects on the ecosystem recently becoming evident. There is probably no other ocean area where ...
Meeting Document : WG-EMM-09/P03 : Author(s): D.G. Ainley
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Metabarcoding analysis of zooplankton collected from Division 58.4.1 in 2014/15 using NGS platform
“unknown” OTUs, we were able to know that metabarcoding strategy can be possible in the zooplankton survey ... biodiversity of zooplankton in the Indian Ocean of Antarctica, Division 58.4.1 in 2014/15. Compared with the ... reliable data with relatively low cost. Resulting NGS sequencing two different sized zooplankton ... only if additional barcode data of small-sized zooplankton or those with soft tissue are supplemented ...
Meeting Document : WG-EMM-16/33 : Author(s): Delegation of the Republic of Korea
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Modelling Southern Ocean krill population dynamics: biological processes generating fluctuations in the South Georgia ecosystem
model solutions with the predator diet data indicates that the model can reproduce the observed pattern ... . The krill population model was combined with a size-based selection function and used to generate ... of variation and emphasizes that adult population changes are a key aspect of the interannual ... fluctuations observed during some years. Low krill abundance was associated with reduced representation of the ...
Meeting Document : WG-EMM-01/53 : Author(s): E. Murphy and K. Reid (United Kingdom)
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Sensitivities in the assessment of the Patagonian toothfish (D. eleginoides) in Subareas 48.3 and 48.4 to truncation of tagging data
double-tagged recaptures suggests that including recaptures from fish at liberty for long periods will ... introduce bias into the assessment. Sensitivity tests on both stocks show that this bias occurs in practice ... . Sensitivity tests on the 48.3 assessment show that this bias is not entirely explained by the effect of double ... tagging. Author(s): T. Earl Title: Sensitivities in the assessment of the Patagonian toothfish (D ...
Meeting Document : WG-SAM-17/35 : Author(s): T. Earl
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Hook loss in CCAMLR exploratory fisheries
to be reiterated in order to achieve a greater level of engagement with the requirements to complete ... lines requires an estimate of the number of lost hooks that are attached to sections of line. In 2011 ... hook loss data was provided by 21 of the 34 vessel/fishery reports with an estimated 317920 hooks lost ... attached to sections of lines. In 2012 15 of the 26 vessel/fishery reports provided non-zero data with an ...
Meeting Document : WG-FSA-12/65 : Author(s): Secretariat
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Prohibition of finning of sharks caught in the CAMLR Convention Area
any shark that is incidentally caught and that cannot be released alive remain naturally attached ... propose to amend CCAMLR Conservation Measure 32-18 to prohibit shark finning and require that all fins of ... through the point of first landing. This is consistent with United Nations General Assembly (UNGA ...
Meeting Document : CCAMLR-XXXIV/24 Rev. 1 : Author(s): Delegations of Argentina, Australia, Brazil, Chile, the European Union and the USA
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Hierarchical monitoring plans to determine patterns of change in the Antarctic Marine Ecosystem
with SOOS to ensure relevant data are available. We highlight that a hierarchical approach to ... required to detect change and to ascribe cause. We therefore propose that CCAMLR build even stronger links ... monitoring could be employed to detect the first signs of change. Author(s): P. Trathan Title: Hierarchical ...
Meeting Document : WS-SM-18/06 : Author(s): P. Trathan