Resultados de la búsqueda
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Reports on abundance and biological information of toothfish in Division 58.4.4 a & b by Shinsei maru No. 3 in 2013/14 season
information of toothfish in the research blocks 58.4.4b_1 (SSRU 58.4.4C) and 58.4.4b_2 (SSRU 58.4.4D) of ... Division 58.4.4b (Ob Lena Banks) from July 18 to September 20, 2014. A total of 88 hauls using normal ... trotline system were made in the blocks. Total catch of Dissostichus eleginoides (excluding those tagged ... and released) was 26.6 tonnes in the survey area. Mean CPUEs in terms of weight of D. eleginoides was ...
Meeting Document : WG-SAM-15/14 : Autor(es): Delegation of Japan
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Sensitivities in the assessment of the Patagonian toothfish (D. eleginoides) in Subareas 48.3 and 48.4 to truncation of tagging data
Abstract: The assessment of toothfish in CCAMLR subarea 48.3 currently uses the first four years ... available recapture data (excluding in-year recaptures). A theoretical analysis of the use of data from ... of tag recaptures post release as input data, whereas the assessment in subarea 48.4 uses all ... introduce bias into the assessment. Sensitivity tests on both stocks show that this bias occurs in practice ...
Meeting Document : WG-SAM-17/35 : Autor(es): T. Earl
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Revised research plan for the exploratory longline fishery for Dissostichus spp. in Subarea 58.4.1 in 2014/15
exploratory fishery for Dissostichus spp. in the SSRUs in Division 58.4.1 from 2014/2015 season to 2018/2019 ... Abstract: Most things related to Dissostichus spp. in the eastern side of Antarctic has not been ... known well as namely the area is data poor areas. In the Division 58.4.1 there are two stocks; one ... sizes were vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1. During the 2004-2014 ...
Meeting Document : WG-FSA-14/38 : Autor(es): Delegation of the Republic of Korea
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Proposal to continue the time series of CCAMLR-sponsored research surveys to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea in 2015
Bay. Survey timing and methods will remain the same as in previous years, and the number of sets will ... presented. The survey will focus on estimating relative abundance in the core strata (A, B, C) in SSRUs 88.1 ... J and 88.1L. It will also carry out 15 exploratory sets in a newly defined stratum K in Terra Nova ... research surveys to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea in 2015 ...
Meeting Document : WG-SAM-14/25 : Autor(es): S.M. Hanchet, S.J. Parker and S. Mormede (New Zealand)
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ABUNDANCE AND BIOLOGICAL INFORMATION ON TOOTHFISH IN DIVISION 58.4.4a & b BY SHINSEI MARU NO. 3 IN 2007/08 SEASON
Abstract: A survey was conducted in order to collect information for the stock status and various ... biological information on toothfish in Division 58.4.4a & b by using a commercial bottom longline vessel ... , Shinsei Maru No. 3, from July 23 to September 27, 2008. The survey was undertaken in two Phases (Phase 1 ... % in numerical number and 90-96 % in weight to the total samples in SSRUs. Mean CPUE of toothfish in ...
Meeting Document : WG-SAM-09/10 : Autor(es): K. Taki, T. Ichii, M. Kiyota and S. Kawahara (Japan)
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Phytoplankton standing stocks in relation to krill in Antarctic waters
Abstract: Investigations on krill trawl operations in the southern ocean were accompanied by the ... lies between latitude 56° to 61° 17's and longitude 30° to 40°E is characterized by cold surface ... waters with temperature ranging from 0 to 3° C and high nutrient content. Phytoplankton cell counts in ... fluctuations in phytoplankton and zooplankton standing stocks followed a similar trend. Marked drop in ...
Meeting Document : WG-EMM-98/34 : Autor(es): X.N. Verlecar, R. Vijayakumar, F. Saldhana and L. Martins (India)
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2012/13 in Division 58.4.3a (this is a revision of WG-SAM-12/14)
Abstract: In 2011/2012, a French vessel conducted its first exploratory fishing campaign in ... division 58.4.3a. In order to achieve a robust stock assessment that would provide advice on catch limits ... years. This paper is a revised proposal of WG-SAM-12/14 encouraged by 2012 SAM working group for a ... detailed catch, effort and biological data with a nearly same survey design as in the 2012. It will include ...
Meeting Document : WG-FSA-12/29 : Autor(es): A. Rélot-Stirnemann (France)
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Spatial aggregation of harvesting in Subarea 48.1, in particular during the summer and close to the coast
operated, collectively taking over 42,000 tonnes of krill from an area less than 30 km in diameter. The ... associated level of catch has increased in Subarea 48.1 during the penguin breeding season. We explore in ... detail, the fishing patterns in Subarea 48.1 during 2014/2015, showing that two areas of fishing ... aggregation took place, one in the Bransfield Strait and one in Hughes Bay, on the Danco Coast. The latter ...
Meeting Document : WG-EMM-16/17 : Autor(es): P. Trathan and S. Hill
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White-chinned petrel incidental mortality event in the Subarea 48.3 Patagonian toothfish fishery during the season extension period in the 2013/14 season
Abstract: During the 2014 experimental season extension in CCAMLR sub-Area 48.3 a single line ... caught 74 white chinned petrels, which is the most significant incidental mortality event in the fishery ... for over 10 years. The circumstances associated with the event were investigated and a review of ... seabird mortality in the fishery undertaken. The mortality event occurred on a “Spanish” system longline ...
Meeting Document : WG-FSA-14/28 : Autor(es): M.A Collins, M. Soffker, C. Darby, K. Ross and P.N. Trathan (United Kingdom)
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VARIABILITY IN KRILL BIOMASS LINKS HARVESTING AND CLIMATE WARMING TO PENGUIN POPULATION CHANGES IN ANTARCTICA
areas on the planet, with 5–6 °C increases in mean winter air temperatures and associated decreases in ... . One hypothesis guiding ecological interpretations of changes in top predator populations in this ... region, the “sea-ice hypothesis,” proposes that reductions in winter sea ice have led directly to ... declines in “ice-loving” species by decreasing their winter habitat, while populations of “ice-avoiding ...
Meeting Document : WG-EMM-11/P1 : Autor(es): W.Z. Trivelpiece, J.T. Hinke, A.K. Miller, C.S. Reiss, S.G. Trivelpiece and G.M. Watters