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An ecological risk assessment of current conservation measures for krill fishing in East Antarctica (CCAMLR Divisions 58.4.1 and 58.4.2)
Abstract: Australia is adapting the risk assessment framework used in Area 48 to assess the risks ... involved in any redevelopment of a commercial krill (Euphausia superba) fishery in CCAMLR Divisions 58.4.1 ... has a high likelihood of achieving CCAMLR’s objectives in this region. This paper outlines a ... disproportionately concentrating catches in areas that are also important to krill predators. In particular, this ...
Meeting Document : WG-EMM-18/37 : Автор(ы): N. Kelly, L. Emmerson, S. Kawaguchi, C. Southwell and D. Welsford
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Stable isotope analysis reveals trophic variation in adult Antarctic krill (Euphausia superba) around the Antarctic Peninsula from austral fall to early winter
Abstract: The Antarctic krill (Euphausia superba) is a key species in the Southern Ocean ... ecosystem and an important link in the food web of the Antarctic ecosystem. The trophic information for this ... known overwintering mechanisms. However, the few studies on the topic differ in their results, in terms ... variation in δ 13 C and δ 15 N values of adult krill in the Antarctic Peninsula, in the austral fall (April ...
Meeting Document : WG-EMM-2019/P03 : Автор(ы): H.T. Zhang, G.P. Zhu, Q. Song, S.Q. Wang, Y. Yang and Q.Y. Yang
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Preliminary trials to test mitigation measures aimed at reducing Macrourus spp. by-catch on autoliners targeting D. eleginoides with longlines in the CCAMLR Convention Area
Abstract: Pilot studies were carried out in 48.3 in 2006 and in 88.1 and 88.2 in 2007 by the ... in catch rates of Macrourus spp due to bait was significant, but not for hook-type. Bait type had ... , variation in CPUE for target and non-target species due to geographical location, depth and soak time were ... significant. In order for the benefits of mackerel bait in reducing macrourid (and other species) bycatch to ...
Meeting Document : WG-FSA-07/33 : Автор(ы): R.E. Mitchell, D.J. Agnew, T. Carruthers, J. Clark, L. Ross (United Kingdom) and J. van Heerden (South Africa)
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Results of the mark–recapture experiment in Subarea 48.3, 2005
Abstract: The mark-recapture experiment continued at South Georgia in 2005. In total some 8000 ... fish have now been tagged in 48.3, and both tagging effort, fishing effort and recaptures were well ... – distributed over the whole of the fishable grounds in 48.3 this year. The Petersen mark-recapture estimator ... , which has been applied previously and described in detail by Agnew et al (2004) and Payne et al (2005 ...
Meeting Document : WG-FSA-05/17 : Автор(ы): D.J. Agnew and A. Payne (United Kingdom)
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Preliminary analysis on the Kerguelen shelf icefish Champsocephalus gunnari stock from 1996/97 to 2001/02: no evidence in the recovery!
deverted fishermen from these specific shallow fishing grounds. However to follow the situation in the area ... cruises in the traditionnal area of fish aggregations. Such cruises occur regularly with two trawlers from ... 1996/97 to 2001/2002, the last season of trawling in the Kerguelen EZ. Preliminary results do not show ... an increasing of the icefish’s abundance in the surveyed area and biomass seems very low. It is a ...
Meeting Document : WG-FSA-02/65 : Автор(ы): G. Duhamel and J. Claudet (France)
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Mackerel icefish biomass and distribution on the results of acoustic survey carried out in February–March 2002
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 ... abundance values by size class in pelagic zone and in the near-bottom 8m layer (covered by bottom trawling ... are also available. The bottom biomass resulted in the estimate of 62,328.0 tonnes. The sum acoustic ...
Meeting Document : WG-FSA-02/44 : Автор(ы): S.M. Kasatkina, V.Yu. Sunkovich, A.P. Malyshko and Zh.A. Frolkina
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EVALUATION OF VME TAXA MONITORING BY OBSERVERS FROM FIVE VESSELS IN THE ROSS SEA REGION ANTARCTIC TOOTHFISH LONGLINE FISHERIES DURING THE 2008-09 SEASON
Abstract: Conservation Measure 22-07 (2008) requires vessels fishing in the Ross Sea region (and ... materials; stylasterids and gorgonians. Errors in other groups indicated the observers did not always record ... ). Relatively large differences between vessels in how VME taxa bycatch were recorded are noted, along with ... in terminology in how data were recorded in logbooks were noted and alternatives described. Updates ...
Meeting Document : TASO-09/08 : Автор(ы): Carter, M., Parker, S.J., Mormede, S., Tracey, D.M.
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ADDRESSING UNCERTAINTY OVER THE IMPORTANCE OF ANTARCTIC TOOTHFISH AS PREY OF SEALS AND WHALES IN THE SOUTHERN ROSS SEA: A REVIEW
(Dissostichus mawsoni) as prey of top predators in the Ross Sea. We reviewed the literature to assess the ... been detected in scat or stomach samples; biochemical samples have been taken only from seal ... -breeding seals in McMurdo Sound take 0.8-1.3 toothfish per day. Seals with video recording equipment were ... estimated that the non-breeding portion of the seal population in McMurdo Sound, during spring and summer ...
Meeting Document : WG-EMM-08/22 : Автор(ы): D. Ainley and D. Siniff (USA)
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Assessment of fishing intensity of krill in Subarea 48.2 during the season of 1989/90
(data of 2900 trawlings are used) in the South Orkneys area during December 1989- March 1990. In the ... fishing intensity (2.7- 88.9 thous.t) obtained for above mentioned four months in 1984-1993 (CCAMLR, 1994 ... in the area off the northern Coronation Island. Vessels of PPR type obtained the highest catch ... 30 t. The highest variability was observed in trawlings duration (τ) and catch per trawling hour (q ...
Meeting Document : WG-EMM-97/51 : Автор(ы): Ivanova, V.I., Sushin, V.A., Kasatkina, S.M.
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Oceanic condition and zooplankton distribution/ abundance in Bransfield Strait during austral summer 1989/1990
Abstract: To delineate zooplankton distribution and abundance in Bransfield Strait, in relation ... plankton towings in a systematic grid from December 29, 1989 to January 7, 1990. Comparisons of temperature ... south of Deception Island, and meanders northeastward in the surface layer of the northern strait ... %) in terms of number, and followed by salpa (27.7%), chaetognatha (6.7%), and euphausia (1.3%). However ...
Meeting Document : WG-KRILL-91/14 : Автор(ы): S.M. Kim and M.S. Suk (Korea)
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