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Комиссия по сохранению морских живых ресурсов Антарктики

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  1. Cephalopods and mesoscale oceanography at the Antarctic polar front: satellite tracked predators locate pelagic trophic interactions

    cephalopod stocks in the Antarctic Polar Frontal Zone (PFZ). This is a vast, remote region where large ... monitor foraging at sea in January-March 1994. A foraging area at the PFZ, north of South Georgia, was ... located, an acoustic survey undertaken and a fixed station established where acoustic targets were found ... . A net survey was carried out with a commercial pelagic trawl, a rectangular midwater trawl 25 m2 ...

    Meeting Document : WG-EMM-96/12 : Автор(ы): Murphy, E.J., Trathan, P.N., White, M.G., Bone, D.G., Hatfield, E.M.C., Rodhouse, P.G., Prince, P.A., Watkins, J.L.

  2. Selectivity of standard polish commercial trawl codends on Antarctic fishing grounds

    Abstract:  steelon codends used in commercial fishery, with a nominal mesh size A = 80 mm and A ... = 100 mm, made of double twines with a thickness of 4.2 mm. The studies covered 6 major fish species. 1 ... satisfactory. 2. Scotia Sea icefish, Chaenodraco wilsoni, and Chionodraco rastrospinosus exhibit a lower ... solution to the problem of ensuring selectivity of codends at a sufficiently good level seems possible as a ...

    Meeting Document : SC-CAMLR-VII/BG/11 : Автор(ы): J. Zaucha (Poland)

  3. On the state of Champsocephalus gunnari stock in Subarea 48.3 and methods of its assessment

    2000 showed clearly a necessity to revise the methods of icefish (which is near-bottom and pelagic fish ... species) biomass assessment based on the results of bottom trawl surveys. A question on unreliability of ... ) both during the period of the icefish fishery in 1980s and after its ceasing in 1990s. In all cases, a ... , catch per unit effort (CPUE), and calculations by VPA showed a clear underestimation of the stock (Table ...

    Meeting Document : WG-FSA-00/45 : Автор(ы): K. Shust, V. Senioukov, P. Gasiukov and A. Kozlov (Russia)

  4. Towards developing diagnostics tools for fishery stock assessments

    Abstract:  In this paper, we describe developments towards a set of standard diagnostic principles ... and tools used to characterise assessment models. CCAMLR has yet to develop a set of recommended ... statistical diagnostics tools to support their evaluations. While there are a number of standard visual and ... statistical diagnostics available for integrated assessments, their sufficiency to evaluate if a model is well ...

    Meeting Document : WG-SAM-15/26 : Автор(ы): P. Ziegler, P. Burch, A. Constable (Australia), C. Darby (United Kingdom), A. Dunn (New Zealand), C. Jones, D. Kinzey (USA), S. Mormede (New Zealand) and D. Welsford (Australia)

  5. Using production models to assess the stock of Paralomis spinosissima around South Georgia Island

    Abstract:  Four production models were fit to a time series of daily catch per unit effort (CPUE ... considered recruitment in different ways. Model 1 contained a linear recruitment function; Model 2 had ... constant recruitment; Model 3 contained a Beverton-Holt recruitment function, and Model 4 used a Ricker ... abundance (N0), an estimate of the scaling coefficient relating abundance to CPUE (q), and a recruitment ...

    Meeting Document : WG-FSA-93/23 : Автор(ы): George Watters (USA)

  6. Update on the Top Predator Alliance project, 2013–14 season: Killer whales

    reliance on toothfish as a critical prey item, have limited our ability to (a) assess the risk posed by the ... toothfish parts; no consumption of non-fish prey by TCKW was detected.  We also observed a large number of ... TCKW with small and presumably suckling calves.  Given that lactation represents a significant energy ... lactation.  A comparison of energy expenditure with energy densities of fish prey indicates that available ...

    Meeting Document : WG-EMM-14/52 : Автор(ы): R. Eisert, M.H. Pinkerton (New Zealand), L. Torres (USA), R.J.C. Currey, P.H. Ensor, E.N. Ovsyanikova, I.N. Visser (New Zealand) and O.T. Oftedal (USA)

  7. OPTIONS FOR USING UNREPLICATED ECOSYSTEM MONITORING DATA TO DETECT IMPACTS

    . Furthermore, CEMP data cannot be used in a standard environmental impact assessment framework as they lack ... an important challenge. Potential strategies are likely to consist of a method for inferring impacts ... and a schedule of tactical interventions in response to these impacts (e.g. restrictions on fishing ... activity). We discuss a range of inference methods which are tractable using CEMP data. These methods ...

    Meeting Document : WG-EMM-09/26 : Автор(ы): S. Hill, J. Forcada, P. Trathan and C. Waluda (United Kingdom)

  8. Investigating emigration in stock assessment models of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–H

    Abstract:  In 2013, the Scientific Committee of CCAMLR could not achieve consensus on a stock ... the recaptures of tagged fish seen in the SSRU 88.2H fishery. The patterns showed a sharp decay rate ... of a cohort of tagged fish with few being recaptured after more than 3 years at liberty, a steepening ... of the decay rate over time, and a trend for increasing proportions of tagged fish caught over time ...

    Meeting Document : WG-FSA-14/56 : Автор(ы): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

  9. Results of the sixth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, January 2017

    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. In ... southern Ross Sea (Strata A–C) using standardised gear in a standardised manner; and monitoring trends in ... . Scaled length frequencies for the core strata indicate the progression of a strong year class that ...

    Meeting Document : WG-SAM-17/01 : Автор(ы): K. Large, L. Robinson and S. Parker

  10. Draft Krill Fishery Report

    Abstract:  At WG-EMM 2013 the Working Group agreed that it would be useful to have a consolidated ... summary of information related to the krill fishery in a similar format to the fishery reports that are ... the preparation of a draft krill fishery report for consideration at WG EMM-14 that would be similar ... in content to a finfish Fishery Report. The following compilation of information on the krill fishery ...

    Meeting Document : WG-EMM-14/58 : Автор(ы): Secretariat

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E-mail: ccamlr [at] ccamlr [dot] org
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