Search results
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Further development of pairwise tag detection performance index and its application to the stock assessment of toothfish in the Ross Sea fishery
sustainable yields. The assessment model assumes that all vessels have equal tag detection rates; as a ... consequence including observations from vessels with low detection rates (and/or low tagging survival rates ... are released and recaptured. We then develop selection criteria, which can be used to determine the ... of that assessment. For each vessel in the fishery, every fishing haul from the nominated ‘case ...
Meeting Document : WG-SAM-13/34 : Author(s): S. Mormede (New Zealand)
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Use of a population model to assess the impact of longline fishing on wandering albatross populations
rate of 2.29% per year, which concurs with global population trends. Sensitivity analyses of model ... parameters indicate that both adult and juvenile mortality are contributing to the decrease. Wandering ... ; such deaths are likely to be relatively more frequent among young, naive birds. The model is used to ... investigate the potential impacts of new longline fisheries such as that for Patagonian toothfish Dissostichus ...
Meeting Document : WG-IMALF-94/08 : Author(s): Coleen L. Moloney, John Cooper, Peter G. Ryan and W. Roy Siegfried (South Africa)
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Preliminary tag-recapture based population assessment of Antarctic toothfish in Subarea 48.4
tagging returns to be 979.3 tonnes in 2017. Applying the CCAMLR agreed precautionary assumption of average ... compared to the 2016/17 catch limit of 38 tonnes. Author(s): N.D. Walker and T. Earl Title: Preliminary ...
Meeting Document : WG-FSA-17/49 : Author(s): N.D. Walker and T. Earl
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The Follow-up Report to the cases regarding the Southern Ocean and Hong Jin No. 701
, following-up to SCIC039;s request made in 2018 (SCIC-2018 Report, paragraph 81). Author(s): Delegation ...
Meeting Document : CCAMLR-38/BG/36 : Author(s): Delegation of the Republic of Korea
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Krill biomass and distribution in Subarea 48.2 during summer 1996
density in the day-time amounted to 30.4 g/sq.m are comparable with density values, observed in the ... obtained seem to be considered as underestimated and typical only for the late summer season, since in the ... early summer season krill density may be higher. Krill biomass estimate (1.12 ± 0.093 mln.t) in acoustic ... characterized by relatively high accurancy (CV = 4.1 %). However, this estimate is likely to be biased towards ...
Meeting Document : WG-EMM-97/49 : Author(s): Kasatkina, S.M., Abramov, A.M., Polischuk, M.I., Sushin, V.A.
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A risk management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
with different types of gear, a risk management framework is proposed, similar to that which has been ... Abstract: CCAMLR adopted a new conservation measure in 2007 (CM 22-06) to ensure that significant ... organisms. The likelihood and consequences of bottom fishing activities, with associated uncertainties, is ... CCAMLR Area are used in the risk analysis. Risk mitigation can then be used to reduce risk to acceptable ...
Meeting Document : WG-EMM-08/37 : Author(s): K. Martin-Smith (Australia)
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Meeting of Antarctic experts comes to a close
reviewed the outcomes of that meeting, and the outcomes of several other specialist working groups ... November with the Meeting of the Commission, CCAMLR’s decision-making body. Research and monitoring plans ... to ability to detect future IUU activity. The Commission agreed that seven new vulnerable marine ... ecosystems (VMEs) will be included on the CCAMLR VME registry – four sites in the western Antarctic Peninsula ...
Page : Site Section: The Organisation
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Mackerel icefish ecological indices
CEMP. With that in mind the following indices are outlined that might be incorporated in the programme ...
Meeting Document : WG-EMM-03/42 : Author(s): I. Everson (United Kingdom), K.-H. Kock (Germany) and A.W. North (United Kingdom)
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Using preferred habitat models for chinstrap penguins (Pygoscelis antarctica) to help improve krill fisheries management during the penguin breeding season
impact penguin populations. We show that the distribution of chinstrap penguins can be predicted using ... find that the chinstrap penguins breeding on the South Orkney Islands use areas which overlap with ... populations may become evident. With this in mind, we recommend the implementation of monitoring schemes to ... investigate the effects of prey depletion on predator populations, and to ensure that management is addressed ...
Meeting Document : WG-EMM-17/33 : Author(s): V. Warwick-Evans, N. Ratcliffe, H.L. Clewlow, L. Ireland, A. Lowther, F. Manco and P.N. Trathan
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REVISED RESEARCH PLAN FOR TOOTHFISH IN DIVISION 58.4.4A and B BY SHINSEI MARU NO. 3 IN 2009/10
, and on fishing trials using both Trot line and Spanish line systems so that their properties can be ... division that includes 4 SSRUs, taking into account the conservative exploitation rate (less than 3.8 % of ... the effort on a smaller subset of this Division is thought to be more reasonable in terms of ... , sufficient tagging rate was calculated to be 5 fish/ton, which can predict the CV of a Petersen estimate of ...
Meeting Document : WG-FSA-09/12 : Author(s): Delegation of Japan