Resultados de la búsqueda
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Distribution patterns and biomasses of Antarctic krill (Euphausia superba) and ice krill (E. crystallorophias) with note on distribution of Antarctic minke whales (Balaenoptera bonaerensis) in the Ross Sea in 2005
Abstract: Distribution patterns and biomasses of Antarctic and ice krill in the Ross Sea in ... obtained from samples of RMT hauls and stomach contents of Antarctic minke whales. Ice krill was ... Ross Sea was stratified into two strata based on the distribution patterns of two krill species to ... estimate their biomasses. Biomass densities of Antarctic krill using KM and KS2 data were estimated as 5.13 ...
Meeting Document : WG-EMM-08/35 : Autor(es): H. Murase, H. Yasuma, R. Matsukura, Y. Takao, K. Taki, T. Hayashi, T. Yabuki, T. Tamura, K. Konishi, K. Matsuoka, K. Miyashita, S. Nishiwaki and M. Naganobu (Japan)
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Assessment of the status of the Champsocephalus gunnari stock in the South Georgia area for the 1990/91 season and TAC calculations for the 1991/92 season
. Values of catch/effort by age group and by year of fishing were used in conjunction with abundance ... indices from trawl surveys in tuning the VPA. The C. gunnari stock at the start of the 1990/91 season is ... estimated at 184 thousand tonnes. Calculation of TAC was carded out keeping in mind the change to the ... fishing regime brought about by a change in mesh size (90 mm). A TAC of 59.4 thousand tonnes for C ...
Meeting Document : WG-FSA-91/27 : Autor(es): P.S. Gasiukov (USSR)
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Swarm characteristics of Antarctic krill Euphausia superba relative to the proximity of land during summer in the Scotia Sea
Abstract: We studied the relationship between the proximity of land and the distribution and ... swarming characteristics of Antarctic krill across the Scotia Sea in January and February 2003. Krill ... -sectional areas of swarms were significantly larger inshore, with a mean value of 120 m 2 in the 0 to 50 km ... zone compared to <80 m 2 further offshore. The packing concentration of krill within inshore swarms ...
Meeting Document : WG-EMM-10/P09 : Autor(es): T. Klevjer, G.A. Tarling and S. Fielding
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Streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources (SC-CAMLR)
Abstract: In recent years, the Scientific Committee has been dealing with a great diversity of ... important issues for which the Commission was expecting advice. The current structure of the Working Groups ... meetings and a large diversity of important issues. A number of important issues are not being addressed ... structure of the Scientific Committee. These options include having three meeting periods timetabled ...
Meeting Document : WG-EMM-15/59 : Autor(es): G. Watters (USA), A. Constable and D. Welsford (Australia)
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2015- Part C: Data analysis and MPA scenario development
justification for the development of a marine protected area (MPA) in the Weddell Sea planning area. In ... documents (Part A-C). SC-CAMLR-XXXIV/BG/15 (Part A) sets out the general context of the establishment of ... the means and the results of the scientific analyses and the development of objectives and priority ... areas for a Weddell Sea MPA. Here, the delegation of Germany intends to update the Scientific Committee ...
Meeting Document : SC-CAMLR-XXXIV/BG/17 : Autor(es): Delegation of Germany
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Updated assessment of the risks of status quo krill fishing and proposed revisions to Conservation Measure 51-07
Abstract: We used an ecosystem model to assess the risks of 1) the most recent distribution of ... . Our results show that the concentration of fishing effort since 2009 increases the risks that predator ... exacerbated by increased catches in Subarea 48.1. We briefly discuss the implications of our results and ... alternative approaches for spatial management of the krill fishery. Author(s): Delegation of the USA Title ...
Meeting Document : SC-CAMLR-XXXV/BG/36 : Autor(es): Delegation of the USA
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ANNUAL CHANGES IN SPECIES COMPOSITION AND ABUNDANCE OF BY-CATCH FISH COLLECTED BY JAPANESE KRILL SCIENTIFIC OBSERVERS IN THE NORTH OF SOUTH GEORGIA (CCAMLR SUBAREA 48.3), DURING AUSTRAL WINTER FROM 2002 TO 2008
Abstract: Species composition and abundance of by-catch fish were analyzed using the fish by ... north of South Georgia during the austral winter from 2002 to 2008. A total of 19 species belonging to 8 ... most abundant. Different life stages of K. anderssoni, Gymnoscopelus nicholsi, C. gunnari and L ... around South Georgia. The length frequency distribution of C. gunnari varied with years and may indicate ...
Meeting Document : WG-EMM-11/40 : Autor(es): T. Iwami, K. Taki and M. Kiyota (Japan)
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DISCRIMINATION OF ENVIRONMENTAL VARIABLES THAT INFLUENCE THE CATCH PER UNIT EFFORT: THE CASE OF THE ANTARCTIC KRILL FISHERY
Abstract: The use of the catch per unit effort (CPUE) as an index of abundance usually requires a ... standardization process consisting of isolating all those exogenous factors from temporal variations in abundance ... vessel efficiency, variations in fishing strategies, and environmental fluctuations. The selection of the ... latter has been considered to be one of the most difficult, arbitrary, and poorly documented stages since ...
Meeting Document : WG-EMM-11/P3 : Autor(es): J.C. Quiroz, R. Wiff, M.A. Barrientos and F. Contreras
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Mercury concentrations of five species of Antarctic fish collected from CCAMLR Subareas 88.1 and 88.2
slightly lower than the permissible level of 0.5 mg/kg-1 set by the New Zealand Food Safety Authority ... (NZFSA). In contrast, mean levels of mercury for D. mawsoni were 0.10 mg/kg-1 in the 1998 samples and ... 0.16 mg/kg-1 in the 2006 samples, both of which are well below the permissible level. Mercury levels ... whitsoni) being only slightly lower than D. eleginoides, whilst the levels of ice fish (Chionobathyscus ...
Meeting Document : WG-FSA-07/24 : Autor(es): S.M. Hanchet, D.M. Tracey, A. Dunn, P.L. Horn and N. Smith (New Zealand)
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Some notes on by-catch of fishes and salps caught by the fishery vessel Niitaka Maru in the vicinity of the South Shetland Islands (January to February 1999)
fisheries by F/V Niitaka Maru were made from 3 January to 4 February 1999 in the vicinity of the South ... Shetland Islands. Among 74 net hauls quantitatively examined, only a total of 5 specimens of juvenile ... hauls and those estimated value was 20 to 3560 ind./t of krill. By-catch fishes fed on Thysanoessa ... macrura and Euphausia superba was not found in their stomachs. Abundance of salps in krill catches could ...
Meeting Document : WG-EMM-00/54 : Autor(es): T. Iwami, S. Kawaguchi and M. Naganobu (Japan)