Resultados de la búsqueda
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VARIABILITY IN KRILL BIOMASS LINKS HARVESTING AND CLIMATE WARMING TO PENGUIN POPULATION CHANGES IN ANTARCTICA
areas on the planet, with 5–6 °C increases in mean winter air temperatures and associated decreases in ... region, the “sea-ice hypothesis,” proposes that reductions in winter sea ice have led directly to ... of an alternative, more robust hypothesis that attributes both increases and decreases in penguin ... penguin abundance with trends in krill biomass explains why populations of Adélie and chinstrap penguins ...
Meeting Document : WG-EMM-11/P1 : Autor(es): W.Z. Trivelpiece, J.T. Hinke, A.K. Miller, C.S. Reiss, S.G. Trivelpiece and G.M. Watters
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Monitoring krill population variability using seabirds and seals at South Georgia – new samplers provide new insights
associated with periods of low krill biomass, has shown that the population dynamics of krill is a major ... responses to changes in krill abundance but also provide critical dietary data with which to elucidate the ... information on the key life-history parameters of prey species that are fundamental to reducing uncertainty in ...
Meeting Document : WG-EMM-04/63 : Autor(es): K. Reid, E.J. Murphy, J.P. Croxall and P.N. Trathan (United Kingdom)
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.3a
coming years in order to achieve a robust stock assessment that would provide advice on a catch limit ... according to CCAMLR decision rules. This paper aims to present a research plan for 2014/2015 that takes into ... model structure is improved with sub-fisheries “deep” and “shallow”. Three scenarios are tested. B 0 is ... estimated at around 400 tonnes and B 2013 /B 0 at around 50%. With Petersen’s method, geometric mean stock ...
Meeting Document : WG-SAM-14/17 : Autor(es): Delegation of France
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2015-16 Research plan in Division 58.4.4 for Dissostichus spp.
, Shinsei maru No. 3, had conducted research fishing in accordance with a research plan submitted under CM ... its intention to achieve a robust stock assessment that would provide advice on a catch limit ... according to CCAMLR decision rules. This paper aims to present a research plan for 2015/2016 that takes into ... estimated around 700 tonnes. CASAL model is updated with 2014 data but in the absence of an assessment using ...
Meeting Document : WG-SAM-15/52 : Autor(es): Delegation of France
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2015/16 in Division 58.4.4
, Shinsei maru No. 3, had conducted research fishing in accordance with a research plan submitted under CM ... its intention to achieve a robust stock assessment that would provide advice on a catch limit ... according to CCAMLR decision rules. This paper aims to present a research plan for 2015/2016 that takes into ... estimated around 700 tonnes. CASAL model is updated with 2014 data but in the absence of an assessment using ...
Meeting Document : WG-FSA-15/67 : Autor(es): A. Rélot-Stirnemann (France)
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Short note: report of bacterial infectious Antarctic krill (Euphausia superba) in South Georgia
observation onboard the F/V Chiyo Maru No.5, from 08/08/03 to 17/09/03 in South Georgia region. Author(s): T ...
Meeting Document : WG-EMM-04/43 : Autor(es): T. Hayashi and M. Naganobu (Japan)
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Patagonian toothfish maturity in fishing area 48.3 (South Georgia and Shag Rocks)
maturity ogive was drawn and compared with size composition in catches of recent years to show that ... that male Patagonian toothfish attained maturity being of a smaller size than female individuals. Half ...
Meeting Document : WG-FSA-03/99 : Autor(es): K.V. Shust and A.N. Kozlov (Russia)
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Professional development in the CCAMLR Secretariat
Abstract: The CCAMLR Secretariat has been tasked with developing a program for CCAMLR along the ... task and provides information to be considered on the future of such a program in the CCAMLR ...
Meeting Document : CCAMLR-XXVI/09 : Autor(es): Secretariat
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Selectivity-induced bias in growth parameter estimates
being included in catch samples. Fish were included in catch samples from the population with ... Subarea 48.3. Substantial selectivity-induced bias was demonstrated, with the simulated catch sample data ... (2004, WG-FSA- 04/86). This suggests that the growth parameters used in the current toothfish ... assessments in Subarea 48.3 are not incompatible with the Belchier (2004, WG-FSA-04/86) data. Author(s): G.P ...
Meeting Document : WG-FSA-SAM-05/19 : Autor(es): G.P. Kirkwood (United Kingdom)
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Comparing two and three frequency dB window identification techniques for estimating Antarctic krill density
that only the 120-70 kHz (S v120-70) identification window was comparable with the regularly used 120 ... model. A Bland-Altman analysis with a pre-set nominal cut-off of ≤5 gm-2 bias between methods identified ... ) identification window was comparable with the regularly used 120-38 and 200-120 kHz (S v120-38 & S v200-120 ...
Meeting Document : SG-ASAM-18/01 : Autor(es): S. Fielding