Résultats de la recherche
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ANALYSIS OF ROSS SEA TAGGING AND RECAPTURE RATES
year and recapture year for tags released and recaptured in the same SSRUs on the slope of 88.1 was ... (caught), all in numbers. 2. The overall size of the dataset was 734 combinations of release year ... , recapture year, SSRU, release nation and recapture nation, with 193 recaptures. Despite this size, fishing ... has not been consistent enough between nations to allow the analysis to be definitive. In many cases ...
Meeting Document : WG-SAM-08/07 : Auteur(s): D.J. Agnew (UK)
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Review of depredation mitigation methods applied within the CCAMLR Statistical Area
growing issue in fisheries around the world. Within the CCAMLR management killer whales and to a lesser ... sound, the physical protection of the catch by nets, hooks or wires or changes in fishing practise such ... of different length. However, deterrents and in particular acoustic deterrents have the potential to ... measures employed in the CCAMLR management area and their potential for disruption both in target and non ...
Meeting Document : WG-SAM-15/28 : Auteur(s): R. Faulkner, N. Edmonds and M. Soeffker (United Kingdom)
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ECOLOGICAL REPERCUSSIONS OF HISTORICAL FISH EXTRACTION FROM THE SOUTHERN OCEAN
Abstract: A major mid-1980s shift in ecological structure of significant portions of the Southern ... stocks were on average reduced to <50%, and finally (mid-1980s) to <20%, of original size. Despite ... -selected life-history patterns, and before exploitation presumably fluctuated in accordance with infrequent ... strong year classes, as is true of such fish elsewhere. A climate regime, the Southern Annular Mode, once ...
Meeting Document : WG-EMM-08/P07 : Auteur(s): D. Ainley and L. Blight
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Growth rates of Antarctic fur seals as indices of environmental conditions
mass at age in each year compared to the multi-year mean, that was not dependent on assumptions of ... growth rates in years of low krill availability. Biases reflecting changes in the component of the ... weighing cross-sections of the population were compared with measured/inferred changes in the the ... differences in growth rate can reliably be derived from differences in the slope of a linear relationship ...
Meeting Document : WG-EMM-01/20 : Auteur(s): K. Reid (United Kingdom)
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Algunos aspectos biologicos relevantes a la explotacion de la merluza negra (Dissostichus eleginoides Smitt, 1898) en la zona economica exclusiva argentina y sector oceanico adyacente
eleginoides) in the Argentine Sea, and atempts some explanation by a trophic analysis of such distribution ... . The distribution of Patagonian toothfish extends between of 36°30'S and 55°S from 80 to 2500 m ... cm, and most of the adult sizes (>80cm) were found in waters at depths greater than 900 meters ... analysed data in different areas including CCAMLR area, longline or trawl operation fishing is recommended ...
Meeting Document : WG-FSA-97/49 : Auteur(s): Almeyda, S.M., Prenski, L.B.
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Preliminary insights of Antarctic toothfish sub-adults life-history traits from the southern Weddell Sea (Subarea 48.5)
bottom trawling carried out by the RV Polarstern in the southern Weddell Sea (Subarea 48.5) (PS82, ANT ... -Larsen Ice Shelf. In this document we report first data on individual age, gonad stage of maturity and ... were immature, showing an age range of 10-13 years. Main prey consisted of Antarctic silverfish and ...
Meeting Document : WG-FSA-18/06 : Auteur(s): M. La Mesa, F. Donato and E. Riginella
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Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey
a function of the fraction of the biomass estimate which is set as the catch for a 20-year period ... fishing mortality, as specified by the Fourth Meeting, results in marked reductions in the probabilities ...
Meeting Document : WG-KRILL-93/42 : Auteur(s): D.S. Butterworth, G.R. Gluckman, R.B. Thomson and S. Chalis (South Africa)
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The relationship between sea-ice cover and Adélie penguin reproductive performance at Béchervaise Island
population growth in response to a reduction in the frequency of heavy sea-ice years. However, it is ... the form of sea-ice present, the season in which it is present and the processes that such sea-ice ...
Meeting Document : WG-EMM-07/21 : Auteur(s): L. Emmerson and C. Southwell (Australia)
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Beach litter accumulation at sub-Antarctic Marion Island – 1998/99
accunmulation for the year May 1998- April 1999. The amount of debris found in both annual and monthly ... dominated for the previous two years. Items originating from South America (Argentina in particular) were ... still double that recorded during 1984. This recent decrease was mainly due to a decrease in the number ...
Meeting Document : CCAMLR-XVIII/BG/22 : Auteur(s): Delegation of South Africa
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ASOC evaluation of the CDS
Abstract: The trade in IUU toothfish continues two years after the adoption by CCAMLR of a Catch ... track the trade in toothfish, gather scientific data on the fishery, and close ports to IUU fish. ASOC ... must take action at its 20th meeting to verify the information in Catch Documents by VMS and ...
Meeting Document : CCAMLR-XX/BG/20 : Auteur(s): Submitted by ASOC