Résultats de la recherche
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Fishery Report 2017: Exploratory fishery for Dissostichus mawsoni in Division 58.4.2
Description / Abstract: Fishery Report 2017: Exploratory fishery for Dissostichus mawsoni in ... ) in each year are provided. Note: length-frequency distributions are only presented for those years ... (from 1 December 2014 to 30 November 2015). Fishery Report 2017: Exploratory fishery for ... (Macrourus spp.). In 2003, the fishery for Dissostichus spp. in Division 58.4.2 changed to an exploratory ... Korea in the division in 2017. 4. For 2018, Australia, France, Japan and Korea have notified their ...
Document : Site Section: Publications
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Direct ageing of Antarctic krill (Euphausia superba) – potential utility of eyestalk sections for age determination
) and fall on the line for two and three year old krill. If validated, the technique should allow the ... Abstract: We outline a method for the direct determination of age in Antarctic krill (Euphausia ... Antarctic Division and examined using the methods outlined in (Kilada et al. 2012). Two analyses are ... seasons. Marks consistent with annuli observed in laboratory raised krill were observed. Length at age ...
Meeting Document : WG-EMM-15/45 : Auteur(s): C. Reiss (USA), R. Kilada (Canada) and S. Kawaguchi (Australia)
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Ecosystem modelling for the Antarctic krill fishery
the Antarctic ecosystem. This species serves as prey for many organisms in the ecosystem and has also ... been the target of an small industrial fishery since the mid 1970s. New quotas have recently been set ... well as competitors for a common resource. In this context we aim to investigate whether the krill ... fishery and the top predators are competing for krill biomass. This is a cooperative pilot project led by ...
Meeting Document : WG-EMM-01/65 : Auteur(s): T. Antezana, J. Cornejo, E. Bredesen, P. Faundez (Chile), A.W. Trites and T. Pitcher (Canada)
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Are penguins and seals in competition for Antarctic krill at South Georgia?
1989 and 2000. Foraging ranges of the two species showed considerable overlap in both years but the ... greater competition for the prey of macaroni penguins leading to the decline in their population. We use a ... ) satellite-tracking data to investigate the spatial separation of these two species whilst at sea during the ... prevalence of krill in the diet of the two predators differed with less krill in the diet of macaroni ...
Meeting Document : WG-EMM-01/22 : Auteur(s): K.E. Barlow, I.L. Boyd, J.P. Croxall, I.J. Staniland, K. Reid and A.S. Brierley (United Kingdom)
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Development of methods relevant to feedback management (FBM) for the krill fishery
Abstract: The primary objective for this project is to develop knowledge on the marine ... environment essential for the implementation of a Feed-Back Management (FBM) system. In terms of FBM, Marine ... . Thus, data supporting FBM as an integral part of the broader management strategies of the krill ... fisheries within Domain 1 are critical if the fishery is to be managed by an empirical understanding of ...
Meeting Document : WG-EMM-18/08 : Auteur(s): B.A. Krafft, A. Lowther, G. Macaulay, M. Chierici, M. Biuw, A. Renner, T.A. Klevjer, R. Øyerhamn, C.A. Cárdenas, J. Arata, A. Makhado, C. Reiss and O.A. Bergstad
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Draft MPA Report for the South Orkney Islands, Subarea 48.2; Part of CCAMLR MPA Planning Domain 1, Western Peninsula – South Scotia Arc
plans and research and monitoring plans for CCAMLR MPAs. We develop a worked example of the management ... plan, research and monitoring plan and threats analysis for the South Orkney Islands southern shelf MPA ... which falls within CCAMLR MPA Planning Domain 1. We suggest that this CCAMLR MPA Report for the South ... Orkney Islands could form the basis for the MPA Report for CCAMLR MPA Planning Domain 1. We propose that ...
Meeting Document : WG-EMM-13/10 : Auteur(s): P. Trathan and S. Grant (United Kingdom)
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CONDITIONING SMOM USING THE AGREED CALENDAR OF OBSERVED CHANGES IN PREDATOR AND KRILL ABUNDANCE: A FURTHER STEP IN THE DEVELOPMENT OF A MANAGEMENT PROCEDURE FOR KRILL FISHERIES IN AREA 48
reference observations for Area 48 (the SAM calendar). Results are presented for two implementations of SMOM ... agreeing the relative plausibilities (weights) for the different operating models. An outline of suggested ... , one with the time series of krill abundance fixed on input, and the other incorporating an explicit ... -predator-fishery dynamics described in an accompanying paper is conditioned using the WG-SAM set of ...
Meeting Document : WG-EMM-08/44 : Auteur(s): É.E. Plagányi and D.S. Butterworth (South Africa)
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A comparison between otoliths and scales for use in estimating the age of Dissostichus eleginoides from South Georgia
caught off South Georgia using otoliths and scales. For scales, we made impressions on acetate slides ... Paper Title: A comparison between otoliths and scales for use in estimating the age of ... result in large errors in age data for long-lived species, usually due to compression of scale circuli ... ; for otoliths, we used transverse sections prepared by baking and grinding the posterior and anterior ... . Sustainable exploitation rates should have been 20-30% of that based on age determinations from scales, in ... using scales than otoliths. There was evidence that for fish older t l~an 16 years (estimated using ... . MSE is an unbiased estimate for o2 within the design, however it is dependent on how the degrees of ... two readings. The bias for Reading 2 by Reader 1 was 0.51 years; the bias for Reading 2 by Reader 2 ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 75–92 : Auteur(s): Ashford, J.R., S. Wischniowski, C. Jones, S. Bobko and I. Everson
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Are penguins and seals in competition for Antarctic krill at South Georgia?
population during their breeding season. For explaining the opposing population trends of the two species ... 1989 and 2000. Foraging ranges of the two species showed considerable overlap in both years but the ... population at South Georgia may have resulted in greater competition for the prey of macaroni penguins ... spatial separation of the Bird Island populations of these two species whilst at sea during the breeding ...
Meeting Document : WG-EMM-02/22 : Auteur(s): K.E. Barlow, I.L. Boyd, J.P. Croxall, K. Reid, U.J. Staniland and A.S. Brierley (United Kingdom)
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Factors to consider in developing management measures for krill
Living Resources is given along with an outline of steps for the evolution of management procedures for ... Paper Title: Factors to consider in developing management measures for krill Abstract ... / Description: A brief review of the objectives of the Convention for the Conservation of Antarctic Marine ... are dependent on krill forms an integral part of objectives of the Commission for the Conservation of ... Convention for the Conservation of Antarctic Marine Living Resources is given along with an outline of ... year to year. The various techniques used to estimate the abundance of animal populations also give ... knowledge; for various reasons, errors will be made in applying conservation measures. Two types of errors ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 175–187 : Auteur(s): de la Mare, W.K.