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Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories
Abstract: 1. This study examined the costs of reproduction in terms of future survival and ... , to estimate the rate of increase of the population as 10•7% per annum. 3. The average annual survival ... of food. Survival rate was unrelated to any other environmental or demographic parameter including ... population size. 4. There was no evidence of senescence. Survival rate was not related to year of birth or ...
Meeting Document : WG-EMM-95/26 : Автор(ы): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.
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Variants of the ASPM assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity which attempt to reconcile CPUE and catch-at-length data
Abstract: Two variants of the ASPM assessment of the Prince Edward Islands toothfish resource are ... examined. One allows for the possibility of changes in somatic growth rate in response to increased food ... -recruitment relationship. A fit of the first variant yields the biologically implausible result of a decrease ... processes. Therefore, unfortunately, neither of the variants examined appears able to resolve the ...
Meeting Document : WG-FSA-SAM-04/12 : Автор(ы): Brandão, A., Butterworth, D.S.
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At-sea distribution and diet of an endangered top predator: links of white-chinned petrels with commercial longline fisheries
conservation concern. To build conservation strategies it is essential to estimate likelihood of seabird ... bycatch and amount of overlap between bird’s foraging and commercial fishing areas. We tracked 21 adult ... , during breeding period in 2006 and 2008. At-sea foraging distribution of white-chinned petrels was mainly ... French Exclusive Economic Zone (EEZ) and other Commission for the Conservation of Antarctic Marine Living ...
Meeting Document : WG-FSA-10/P01 : Автор(ы): K. Delord, C. Cotté, C. Péron, C. Marteau, P. Pruvost, N. Gasco, G. Duhamel, Y. Cherel and H. Weimerskirch
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Assessment of fishable krill biomass on the basis of the acoustic surveys results using geostatistical methods
Abstract: ABSTRACT Applicability of geostatistical methods in processing the acoustic fields of ... usefulness of these methods in studying the structure of krill density field for biomass assessment in ... compliance with different thresholds of their fishery importance. The structure of krill density field in ... small areas and constitutes only part of the total biomass concentrated within each coastal SSMU (SGW ...
Meeting Document : WG-SAM-10/07 Rev. 1 : Автор(ы): S.M. Kasatkina and P.S. Gasyukov (Russia)
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The fish fauna of the Argentine Islands region (Antarctica; 12 UAE 2007–2008) and morphometrical changeability of Notothenia coriiceps (Richardson, 1844)
presented. The quantitative indexes of different species fishes and the analysis of their dominant groups ... and morphometrical analyses of two groups Notothenia coriiceps from the Meek-Penola Channel and near ... the west coast of Grotto Island are conducted. It is exposed, that these two groups of fish species ... , except for hepato-somatic. Individuals of both groups’ species of fish had the low indexes of adiposeness ...
Meeting Document : WG-FSA-12/P06 : Автор(ы): V.N. Trokhymets, V.A. Tymofyeyev and J.S. Perechrest
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Diet composition and feeding strategy of Antarctic toothfish, Dissostichus mawsoni in SSRU 5841C-a for the exploratory longline fishery in 2012/13 of Korea
Abstract: The stocks of Dissostichus mawsoni in the Division 58.4.1 were vulnerable with a big ... range of about 1,000-2,000 t per SSRU in Division 58.4.1. However, there is not enough data and ... fishery managements. Therefore, the Korean scientists analyze diet composition and feeding strategy of ... Antarctic toothfish, Dissostichus mawsoni in SSRU 58.4.1.C-a as a part of Korean research plan for the ...
Meeting Document : WG-SAM-13/26 : Автор(ы): I. Yeon, Y.J. Kwon, S.G. Choi, K.J. Seok, D.W. Lee, J.M. Jeong, S.J. Ye, H.J. Kim and G.W. Baeck (Republic of Korea)
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Spatial overlap of krill-dependent predators and krill fishery catches and a proposal for subdivision of catch limits in Subarea 48.1
Abstract: Progressing from Stage 1 to Stage 2 of a feedback management strategy requires a better ... understanding of spatial overlap between predators and fishing activity. We provide estimates of the spatial ... in Subarea 48.1. In general, overlap of summer and winter foraging habitats with krill catches in ... might affect the distribution of fishing effort. A comparison of CEMP parameters from two years with ...
Meeting Document : WG-EMM-14/36 : Автор(ы): J.T. Hinke, M.E. Goebel (USA), M.M. Santos (Argentina), P.N. Trathan (UK), W.Z. Trivelpiece and G.M. Watters (USA)
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Revised stock assessment of the Patagonian toothfish, Dissostichus eleginoides, in research block C of Division 58.4.4 (Ob & Lena Banks) using CASAL
Abstract: Regarding the low levels of stocks of Dissostichus spp. and the high levels of IUU ... assessment of stock status of D. eleginoides in SSRU C was made by Japan using a CASAL catch-at-length model ... in 2013. During the WG-SAM-2014, two developments of CASAL assessment were presented one by France ... and the other by Japan. The Working Group recommended that further development of the assessment ...
Meeting Document : WG-FSA-14/06 : Автор(ы): A. Rélot-Stirnemann (France)
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Detection of growth zones in the eyestalk of the Antarctic krill Euphausia superba (Dana, 1852) (Euphausiacea)
Abstract: No reliable measures of age currently exist in the Antarctic krill, Euphausia superba ... , each zone consisting of one light and one dark section. The width of the longitudinal sections ... zones. There were positive relationships between the number of zones and the maturity stage, and between ... the number of zones and body length. Further knowledge about molting process in the Antarctic krill ...
Meeting Document : WG-EMM-16/P02 : Автор(ы): B.A. Krafft, M. Kvalsund, G. Søvik, E. Farestveit and A.-L. Agnalt
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Results of the fifth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, February 2016, and notification for continuation in 2017
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... results of the fifth survey in the time series. The objectives of this survey were: (1) to continue a time ... series of longline surveys to monitor sub-adult (≤ 110 cm TL) toothfish in the south of SSRUs 881.J and ... situated in SSRU 881.M) of importance to predators: McMurdo Sound in 2016 and Terra Nova Bay in 2017. The ...
Meeting Document : WG-SAM-16/14 : Автор(ы): A. Dunn, C. Jones, S. Mormede and S. Parker
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