Resultados de la búsqueda
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Using tag-recapture data to estimate catchability of a series of random stratified trawl surveys
fishing selectivity cannot be corrected for given the available data. In the absence of an unbiased ... Abstract: For the 2014 assessment of Patagonian toothfish (Dissostichus eleginoides) around the ... Heard Island and McDonald Islands (HIMI) in Division 58.5.2, a prior for catchability q of the random ... estimates calculated from the tag-recaptures data on the main trawl ground. Here, we use simulations to ...
Meeting Document : WG-SAM-15/34 : Autor(es): W. de la Mare, P. Ziegler and D. Welsford (Australia)
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Korean research plan in Divisions 58.4.1 and 58.4.2 in 2016/17
been known well as namely the area is data poor areas. In the Division 58.4.1 there are two stocks; one ... among them have been recaptured which were not enough data to estimate stock biomass for considering the ... and 58.4.1C. Some studies on biology of the fish have been evaluated, but those are not enough to ... assess the stocks and consider proper management measures. Based on CCAMLR’s fishery report, the eastern ...
Meeting Document : WG-SAM-16/17 : Autor(es): Delegation of the Republic of Korea
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Albatross populations: status and threats
status (i.e.. population trends) of two-thirds of the world's ca. 150 albatross populations remain ... unknown. For those that are known, almost half are decreasing. The threats currently facing each species ... threat facing albatrosses today. Twenty-one of the 24 species are known to be killed on longline hooks ...
Meeting Document : WG-FSA-97/28 : Autor(es): Gales, R.
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Antarctic Climate Change and the Environment – 2017 Update
Abstract: This paper presents an update on the SCAR Antarctic Climate Change and the Environment ... Report, providing an overview of recent science. The update is not meant to be read as a synthesis report ... , but as a perspective on recent scientific advances. Author(s): Submitted by SCAR Title: Antarctic ... : Approved Secretariat Workflow Status: Content Approved Delegation responsibility for releasing documents ...
Meeting Document : SC-CAMLR-XXXVI/BG/16 : Autor(es): Submitted by SCAR
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Biology, population dynamics and preliminary assessment of the long-term yield of Macrourus caml by-caught by the Australian fishery at Heard Island and the McDonald Islands (CCAMLR Division 58.5.2)
information, we propose an increase in total allowable catch based on the long-term sustainable yield for M ... Division 58.5.2, particularly for longline operations targeting Patagonian toothfish (Dissostichus ... collected in the survey, and subsequent commercial longline operations, to enable an assessment of the long ... term sustainable yield of M. caml at HIMI using the Generalised Yield Model. On the basis of this ...
Meeting Document : WG-FSA-15/63 : Autor(es): J. Dell, D. Maschette, E. Woodcock and D. Welsford (Australia)
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Analyses of illegal, unreported and unregulated (IUU) fishing activities in Divisions 58.4.1 during the 2013/14 season and 58.4.3b during the 2014/15 season
unaccounted for IUU removals, which may have impacted on research activities in Division 58.4.1. Author(s ... by an NGO vessel. As requested in WG-FSA-17 paragraph 2.16, this document provides an analysis of the ... authorised vessels. Based on data from 2013/14, total removals by IUU vessels fishing with gillnets were ... higher than authorised vessels fishing with longlines, and the presence of an authorised vessel in the ...
Meeting Document : WG-FSA-18/60 : Autor(es): Delegation of Australia and CCAMLR Secretariat
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Dynamics of Antarctic penguin populations in relation to inter-annual variability in sea-ice distribution
were there significant relationships between population size and breeding success, except for an ... Abstract: To investigate the role of sea ice cover on penguin populations we used principal ... antarctica) penguins breeding on Signy Island, South Orkney Islands with local (from direct observations) and ... population size remained stable, whereas that of chinstrap penguins decreased slightly. For neither species ...
Meeting Document : WG-EMM-96/10 : Autor(es): Murphy, E.J., Croxall, J.P., Trathan, P.N.
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Summary of monitoring and research effort and preliminary results from the 2019 Scotia Sea krill monitoring survey with FV Cabo de Hornos
of the large scale survey area were visited, and about 80 % of the coverage planned for the vessel ... were travelled on transects, and in addition to the acoustic data collection which is presented in a ... separate manuscript, 68 trawl stations for biological sampling with associated CTD casts were carried out ... . In addition, deployment of four acoustic moorings and 9 replicate measurements on board of krill ...
Meeting Document : WG-EMM-2019/46 : Autor(es): G. Skaret, M. Martinussen, G. McCallum, R. Pedersen, J. Rønning, A.L. Donoso, O.A. Bergstad and B.A. Krafft
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Seasonal and interannual variation in foraging range and habitat of macaroni penguins Eudyptes chrysolophus at South Georgia
between different stages of the breeding season, between sexes, between years and between individuals ... . During incubation, on foraging trips of 10 to 26 d, both sexes travelled long distances from Bird Island ... during chick rearing: females travelled further on average and on more direct trips. During chick rearing ... , males and females on longer foraging trips covered greater distances and travelled further from Bird ...
Meeting Document : WG-EMM-02/21 Text : Autor(es): K.E. Barlow and J.P. Croxall (United Kingdom)
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Seasonal and interannual variation in foraging range and habitat of macaroni penguins at South Georgia
the breeding season, between sexes, between years and between individuals. During incubation, on ... chick rearing: females traveled further on average and on more direct trips. During chick rearing, males ... and females on longer foraging trips covered longer distances and travelled further from Bird Island ... some parameters varied between years. The bearings of chick-rearing foraging trips were non-random and ...
Meeting Document : WG-EMM-01/19 : Autor(es): K.E. Barlow and J.P. Croxall (United Kingdom)