Resultados de la búsqueda
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Estimates of the tag loss rates for single and double tagged toothfish (Dissostichus mawsoni) fishery in the Ross Sea
-estimated for double tagged fish in the first four years and under-estimated after that. However, the tag ... tagged fish having at least one tag remaining after one year at liberty; 98.9% after two years at liberty ... Abstract: The rate at which tags are lost from tagged toothfish is an important parameter in ... modelling of the Antarctic toothfish (Dissostichus mawsoni) populations in Subarea 88.1 and 88.2. The ...
Meeting Document : WG-SAM-11/18 : Autor(es): A. Dunn, M.H. Smith (New Zealand), D.J. Agnew (UK) and S. Mormede (New Zealand)
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Comparison of krill density estimated with swarm-based and dB-difference method using acoustic data collected by Chinese fishing vessel participating in the 2019 Area 48 survey
the acoustic data collected around the South Shetland Islands in Subarea 48.1 by the Chinese fishing ... set to four ranges including [-20 20], [2 16], [0.4 12] and without dB window (only 120kHz used ... from various identification methods, except for the estimates from [-20 20] identification window and ... participating in the 2019 Area 48 survey Microsoft Word File: asam-2019-06.docx Approval: Approved Secretariat ...
Meeting Document : SG-ASAM-2019/06 : Autor(es): X. Yu, X. Wang, J. Zhang and X. Zhao
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Population change in gentoo penguins Pygoscelis papua at South Georgia: potential roles of adult survival, recruitment and deferred breeding
one year, and for part of the differences in two other years, when mortality rates must also have been ... generally good agreement between observed and predicted breeding populations, except in four years, when ... infrequent bad years; any increase, natural or artificial, in the frequency of such events might have serious ... higher. In the remaining year, when the increase in population greatly exceeded the preceding decrease ...
Meeting Document : WG-CEMP-93/08 : Autor(es): J.P. Croxall and P. Rothery (United Kingdom)
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Pilot study on electrophoretic variation and stock structure in the mackerel icefish, Champsocephalus gunnari, South Georgia waters
Abstract: The use of allozymes as a tool in stock structure analysis was examined in the ... commercially-exploited mackerel icefish, Champsocephalus gunnari, together with a preliminary assessment of ... stock separation among samples in South Georgia waters. Four samples (116 individuals) of icefish were ... indicate that localised stocks of C. gunnari exist in South Georgia waters. The questions posed by the non ...
Meeting Document : WG-FSA-90/10 : Autor(es): G.R. Carvalho and D.P. Lloyd-Evans (United Kingdom)
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NOTIFICATIONS OF RUSSIA’S INTENTION TO INITIATE NEW POT FISHERIES FOR CRAB IN THE 2008/09 SEASON
FISHERIES FOR CRAB IN THE 2008/09 SEASON Approval: Approved ...
Meeting Document : CCAMLR-XXVII/20 : Autor(es): Delegation of Russia
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NOTIFICATIONS OF JAPAN’S INTENTION TO CONDUCT EXPLORATORY LONGLINE FISHERIES FOR DISSOSTICHUS SPP. IN THE 2009/10 SEASON
LONGLINE FISHERIES FOR DISSOSTICHUS SPP. IN THE 2009/10 SEASON Approval: Approved ...
Meeting Document : CCAMLR-XXVIII/20 : Autor(es): Delegation of Japan
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Notifications of South Africa’s intention to conduct an exploratory longline fishery for Dissostichus spp. in 2007/08
conduct an exploratory longline fishery for Dissostichus spp. in 2007/08 Approval: Approved ...
Meeting Document : CCAMLR-XXVI/20 : Autor(es): Delegation of South Africa
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Interannual variability of krill, salp and other zooplankton populations in the South Shetland Island area during Austral summer 1993–1998
recruitment from the past two years. Unusually small juvenile krill in 1998 suggested that survival success ... ". The 4-5 year periodicity of "salp years" over the past fifteen years is discussed with ... sea ice in the Antarctic Peninsula region. Overall krill length/maturity composition reflected poor ... was limited to late-spawned eggs and larvae in 1997. Delayed spawning and few larval krill in 1998 ...
Meeting Document : WG-EMM-98/50 : Autor(es): V. Loeb, W. Armstrong, R. Hewitt (USA) and V. Siegel (Germany)
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Review of the technical recommendations for the Patagonian toothfish fishery in order to minimize by-catch
Abstract: The Patagonian toothfish fishery in the EEZ of Kerguelen (division 58-5-1) and Crozet ... Territories (TAAF). The TAAF relies on advice from several scientific institutions, in particular from the ... recommendations in order to minimize fish by-catch of fish that are not targeted by the fishery campaign of 2011 ... obtained with the enforcement of these measures are analyzed, some quantified targets will be defined in ...
Meeting Document : SC-CAMLR-XXX/BG/10 : Autor(es): Delegation of France
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Climate change and zooplankton dominance in the Antarctic marine ecosystem: implications for the food web
followed the first prolonged winter sea-ice season in three years and provides a strong contrast to the ... has been warming over the past 40 years with an associated decreased frequency of winters with ... function of the Antarctic marine ecosystem. In the Antarctic Peninsula region winter sea-ice coverage is a ... population dynamics of salps (Salpa thompsoni). Strong krill recruitment success there follows years of ...
Meeting Document : WG-EMM-96/21 : Autor(es): Siegel, V., Fraser, W., Trivelpiece, S., Holm-Hansen, O., Loeb, V., Hewitt, R., Trivelpiece, W.