Resultados de la búsqueda
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Spatial distribution of predator/prey interactions in the Scotia Sea: implications for measuring predator/fisheries overlap
Abstract: The measurement of spatial overlap between predators and fisheries exploiting a common ... prey source is dependent upon the measurement scale used and the use of inappropriate scales may ... provide misleading results. Previous assessments of the level of overlap between predators and fisheries ... scales and arrives at contradictory conclusions. At-sea data from observations of krill predators during ...
Meeting Document : WG-EMM-02/14 : Autor(es): K. Reid, M. Sims, R.W. White and K.W. Gillon (United Kingdom)
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Mackerel icefish biomass and distribution on the results of acoustic survey carried out in February–March 2002
Abstract: Results of the acoustic survey of icefish carried out by Russian vessel STM-8390 ... Atlantida in February-March 2002 in Subarea 48.3 are presented. Biomass and distribution of icefish were ... estimates of icefish were made by comparison an observed TS in situ histograms with the size composition of ... the ensonified fish, obtained by trawling. Results of acoustic estimates of icefish biomass and ...
Meeting Document : WG-FSA-02/44 : Autor(es): S.M. Kasatkina, V.Yu. Sunkovich, A.P. Malyshko and Zh.A. Frolkina
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Revised reproductive analysis of Dissostichus mawsoni in SSRU 58.4.1 C for the Korean exploratory longline fishery in 2012/2013
Abstract: In the Division 58.4.1 there are two stocks of Dissostichus mawsoni, which is ... vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1. However, there is not enough data to ... analyze the reproductive ecology of Dissostichus mawsoni in SSRU 58.4.1C based on the histological methods ... as a part of Korean research plan for Dissostichus spp. in SSRUs 58.4.1 C and E during 2012/2013 ...
Meeting Document : WG-FSA-13/45 : Autor(es): I.J. Yeon, J.S. Lee, Y.J. Kwon, M.A. Jeon, S.K, Choi, K.J. Seok, D.W. Lee, K.Y. Ku and H.J. Kim (Republic of Korea)
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An index of per capita recruitment
Abstract: An index of per capita recruitment (PCR) is proposed such that Ri PCRy–1 = R1y/(1–R1y ... )eM where R1 is the proportion of age-1 animals sampled in year y and M is the post-recruit mortality ... rate. The intent of the index is to facilitate investigation of reproductive success and the factors ... postulated to affect it. The formulation of PCR is based on the assumptions that: 1) post-recruit mortality ...
Meeting Document : WG-EMM-99/50 : Autor(es): R. Hewitt (USA)
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Preliminary review of Antarctic toothfish maturity in the Ross Sea
Abstract: Results of comparative histological analysis of gonads of female and male Antarctic ... toothfish Dissostichus mawsoni caught by Russian longliners in the Ross Ross Sea of the Pacific sector in ... 2004/2005- 2006/2007 seasons are presented. Morphological indices of females and males, age, indices of ... gonads, fecundity, and condition by Fulton are described. The criteria of assessment of maturity stages ...
Meeting Document : WG-FSA-11/27 : Autor(es): S.V. Piyanova and A.F. Petrov (Russia)
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Gonad analysis of Antarctic toothfish in Subareas 58.4 and 88.3
Abstract: The ratio of female among the 600 specimens of Antarctic toothfish collected from the ... found to be 0.50, and displayed the tendency of increase with increase in the total length 140 cm. The ... gonadosomatic index of the fish was 2.5 for the female, and 1.7 for male. The hepatosomatic index of female ... (2.5) and male (2.7) were similar. The type of ovarian development of Antarctic toothfish was group ...
Meeting Document : WG-FSA-17/09 : Autor(es): J. Kim, S.-G. Choi, J. Lee, J. Lee and D. An
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To the question for bioregionalisation of the Antarctic waters with ecosystem approach
Abstract: The nature of the composition (structure) and distribution Antarctic marine living ... resources to determine by position of the South Ocean and originaly it's geographic isolation unity ... Carrent sistem (ACC), but to circumpolar distribution of the whales, seals, seabirds, fishes, squids ... , species of macro- and mesoplancton, algaes and protosoa, in other words all the components of ecosistem ...
Meeting Document : SC-CAMLR-XXV/BG/18 : Autor(es): Delegation of Russia
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Summer distribution, abundance and structure of krill populations (Euphausia superba and Euphausia crystallorophias) sampled by plankton net in the western Ross Sea (January–February 2000)
) were analysed to obtain a general picture of the summer distribution pattern, abundance and demography ... of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... double oblique tow. Mean relative biomass of Antarctic krill Euphausia superba, in the area north of ... Continental Shelf, was 9.4 (±18%) g/l000m3 of filtered water with a mean density of 11.0 (±16%) indviduals per ...
Meeting Document : WG-EMM-00/38 : Autor(es): M. Azzali, A. Sala and G. Brancato (Italy)
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Seabird mortality on longlines in Australian waters: a case study of progress and policy
Abstract: Seabird bycatch arising from longline fishing is known to kill tens of thousands of ... , particularly albatrosses, causing widespread declines in populations across the world. However the extent of ... seabird mortality is poorly known for most of the world's longline fisheries. Information on bird ... evolution of the seabird bycatch issue in the Australian Fishing Zone (AFZ), where the magnitude of the ...
Meeting Document : WG-FSA-98/29 : Autor(es): R. Gales, N. Brothers, T. Reid, D. Pemberton and G.B. Baker (Australia)
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Spatial and temporal distribution of krill Euphausia superba biomass in the Ross Sea (1989/90, 1994/95)
Abstract: The paper, based on the results of italian expeditions to the Ross Sea (December 1989 ... - Januar 1990 and November- December 1994), presents how is spatial and temporal distribution of krill ... December- January). The process of ice melting began in mid November, near Ross Ice Shelf (so called ... , many times, on the pieces of ices broke up by icebreaker, individuals of krill were observed, it can be ...
Meeting Document : WG-EMM-97/53 : Autor(es): Kalinowski, J., Azzali, M.