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Depletion-based stock reduction analysis: a catch-based method for determining sustainable yields for data-poor fish stocks
for data-poor fisheries in cases where approximate catches are known from the beginning of ... -Reduction Analysis with Depletion-Corrected Average Catch. Data requirements include estimates of historical ... specified based on general fishery knowledge of the relative location of maximum productivity and the ... relationship of MSY fishing rate to the natural mortality rate. This leaves unfished biomass as the only ...
Meeting Document : WG-SAM-11/P2 : Автор(ы): E.J. Dick and A.D. McCall
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Potential VMEs around Elephant and the South Shetland Islands (Subarea 48.1)
in the South Shetland Islands area. High biomass densities of VME indicator taxa, meeting the 10 kg ... ascidians) such that communities of many ‘light’ VME taxa have little to no chance of meeting this criterion ... types of communities where sponges and other heavy taxa occur. A clear example can be made of CITES ... high biomass-density station and even large colonies of which weigh relatively little. After applying ...
Meeting Document : WG-EMM-12/51 : Автор(ы): S.J. Lockhart (USA), N. Wilson (Australia) and E. Lazo-Wasem (USA)
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Spanish research proposal for the 2016/17 season in Division 58.4.1
Abstract: In the 2012/13 fishing season Spain began the implementation of a multi-annual Research ... Plan for Divisions 58.4.1 and 58.4.2 in order to estimate local biomass of Dissostichus spp. by means ... of two methods: depletion and tagging. Although a big effort has been placed for their accomplishment ... , results have to be analyzed in the coming months but some doubt about the reliability of data could be ...
Meeting Document : WG-SAM-16/10 : Автор(ы): Delegation of Spain
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Preliminary report on the South Orkneys Ecosystem Studies (SOES) field work undertaken by RRS James Clark Ross (JR15004) and associated field camps in January–February 2016
Abstract: This paper briefly describes the rationale and structure of the research cruise that ... formed a key component of the co-ordinated, multi-national South Orkney Ecosystems Studies focusing on ... the krill-based ecosystem in the main fishing area in Subarea 48 undertaken in the austral summer of ... 2015-16. The research cruise consisted of collection of at-sea data on the distribution, abundance and ...
Meeting Document : WG-EMM-16/19 : Автор(ы): J. Watkins, O.R. Godø, S. Fielding, C. Reiss, P. Trathan and E. Murphy
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Predicting fishing ground accessibility in the Antarctic Weddell Sea
Abstract: Sea ice is a major constraint of fishery performance in the Southern Ocean seasonal sea ... establish statistical models of (i) accessibility, i.e. the probability that a particular area is navigable ... by fishery vessels at a given time, and of (ii) repeated accessibility, i.e. the probability that a ... conditions almost 50% of the entire WSMPA Planning Area is not suitable for fishery vessels at any time of ...
Meeting Document : WG-SAM-18/01 : Автор(ы): H. Pehlke, K. Teschke and T. Brey
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Is CCAMLR science keeping up?
and update its conservation measures in the light of emerging environmental changes, latest scientific ... those developed by experts from outside of the ‘CCAMLR club’. Two examples were considered: the ... protection of VMEs and the mitigation of marine debris and plastic pollution. This consideration concluded ... recommends that CCAMLR: Implement a process to ensure regular review of conservation measures that are not ...
Meeting Document : SC-CAMLR-XXXVII/BG/29 : Автор(ы): Submitted by ASOC
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Research plan for the exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1, 58.4.2 and Subarea 48.6 in 2014/2015 (including CTD data in 88.1, 88.2)
Abstract: Most things related to Dissostichus spp. in the eastern side of Antarctic has not been ... sizes were vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1 and 100-1,500 t per ... -web of Dissostichus spp. has started to be studied in the southern Ross Sea. Some studies on biology ... of the fish have been evaluated, but those are not enough to assess the stocks and consider proper ...
Meeting Document : WG-SAM-14/21 : Автор(ы): Delegation of the Republic of Korea
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Modelling krill recruitment
Abstract: A method is developed for using observed values of the mean proportion of recruits and ... its variance to model recruitment in a krill population in terms of numbers of recruits. The method ... includes the calculation of natural mortality and other parameters consistent with the observed ... proportional recruitment parameters. A procedure is given for generating families of recruitment functions ...
Meeting Document : WG-KRILL-93/13 : Автор(ы): W. de la Mare (Australia)
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POTENTIAL PHENOLOGICAL RESPONSES TO ENVIRONMENTAL VARIABILITY AND CHANGE FOR ADÉLIE PENGUINS
Abstract: Phenological changes are touted to be an early indication of species response to ... environmental change and have been reported for a range of species around the globe. In Antarctica, there is a ... clear indication of phenological changes for the Adélie penguin (Pygoscelis adeliae) with contrasting ... trends in clutch initiation dates reported for populations on opposite sides of Antarctica. Such shifts ...
Meeting Document : WG-EMM-11/33 : Автор(ы): L. Emmerson and C. Southwell (Australia)
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Fishing equipment, marine debris and hydrocarbon soiling associated with seabirds at Bird Island, South Georgia, 2006/07
Abstract: This report describes and quantifies occurrences of fishing gear, marine debris and oil ... fourteenth such annual report. As in previous years, more items of marine debris and fishing gear (mostly ... . The total number of items encountered (n =170) increased after a recent short-term decline with large ... numbers of fishing hooks and line (n=70) recovered from wandering albatross chick regurgitations ...
Meeting Document : SC-CAMLR-XXVI/BG/18 : Автор(ы): Delegation of the United Kingdom
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