Résultats de la recherche
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Mackerel icefish biomass and distribution on the results of acoustic survey carried out in February–March 2002
estimate of the icefish biomass in the subarea of South Georgia amounted to 92.6 thous. tonnes. Nearly 30 ... 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 ...
Meeting Document : WG-FSA-02/44 : Auteur(s): S.M. Kasatkina, V.Yu. Sunkovich, A.P. Malyshko and Zh.A. Frolkina
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Interannual variability of the South Georgia marine ecosystem: biological and physical sources of variation in the abundance of krill
. Fluctuations in year class success in parts, or all, of the population across the Scotia Sea, can generate ... the relative roles of biological and physical processes in generating these fluctuations are unknown ... krill (Euphausia superba) in the South Georgia area, and that the variation affects much of the ... large changes in the available biomass. The ocean transport pathways maintain the large scale ecosystem ...
Meeting Document : WS-AREA 48-98/8 : Auteur(s): E.J. Murphy, J.L. Watkins, K. Reid, P.N. Trathan, I. Everson, J.P. Croxall, J. Priddle, M.A. Brandon, A.S. Brierley (UK) and E. Hofman (USA)
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Assessment of fishing intensity of krill in Subarea 48.2 during the season of 1989/90
30 t. The highest variability was observed in trawlings duration (τ) and catch per trawling hour (q ... (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 ...
Meeting Document : WG-EMM-97/51 : Auteur(s): Ivanova, V.I., Sushin, V.A., Kasatkina, S.M.
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Estimation of the biomass of krill in Prydz Bay during January/February 1991, February/March 1992 and January/ February 1993 using echo integration
Abstract: Hydroacoustic surveys of the abundance of krill (Euphausia superba) in the Prydz Bay ... region were undertaken in January/February 1991, February/March 1992 and January/February 1993. The ... surveys indicated some association of krill with the shelf break in the western part of the survey area ... and the centre of the Prydz Bay region but also found that the shelf break was in general not a region ...
Meeting Document : WG-Krill-94/21 : Auteur(s): T. Pauly and I. Higginbottom (Australia)
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A review of by-catch in CCAMLR exploratory toothfish fisheries
years, despite no significant reduction in fishing effort probably linked to changes in landings of ... thorough and effective management of Southern Ocean toothfish fisheries, especially in eliminating ... caught as bycatch annually. Fish bycatch mitigation controls in toothfish fisheries have seen a ... thoroughly investigated. This study explores trends in fish bycatch of exploratory fisheries for toothfish ...
Meeting Document : WG-FSA-14/16 : Auteur(s): E. McClure, K. Reid (Secretariat)
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The 1991/92 fishery for Dissostichus eleginoides in Subarea 48.3
Paper Title: The 1991/92 fishery for Dissostichus eleginoides in Subarea 48.3 Abstract ... / Description: The 1991/92 longline fishery for Dissostichus eleginoides in Subarea 48.3 was open from 4 ... Chilean vessels. The maximum catch taken in a five-day period was 375 tonnes. Catch rate was not ... varied markedly among fleets and was about 1 kg/hook in the Chilean fleet, 0.2 to 0.4 in the Russian and ... ) which seemed to improve its performance later in the year. CPUE Daily CPUE, expressed as kg/thousand ... Russian c 20 to 25 mm 120 cm 2400 - 4800 Russian d 20 to 25 mm 120 cm 13500 Russiane 25 to 30 mm 120 cm ... Figure 5: Position of all hauls in Subarea 48.3, 1992 season. 20 Hook Nr 3 16 12 tItlIlllllll ... ELEGINOIDES IN SUBAREA 48.3 D.J. Agnew1 and C.A. Moren02 Abstract The 1991/92 longline fishery for ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 31–48 : Auteur(s): Agnew, D.J. and C.A. Moreno
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Krill, salps and other dominant zooplankton taxa in the Elephant Island area during the 1997 austral summer
, resulted from massive population growth during summer. This bloom, as those in previous "salp years ... Abstract: Results from two net surveys in the Elephant Island area during January-March indicated ... moderate krill abundance and lower recruitment success of the 1995/96 year class relative to that of 1994 ... , K., Outram, D., Loeb, V. Title: Krill, salps and other dominant zooplankton taxa in the Elephant ...
Meeting Document : WG-EMM-97/33 : Auteur(s): Puglise, K., Outram, D., Loeb, V.
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Impacts of rising sea temperature on krill increase risks for predators in the Scotia Sea
, penguins, seals, and fish) in the Scotia Sea. We also investigated the potential to mitigate depletion risk ... for predators by curtailing krill fishing at different points in the 21st century. The projected ... effects of ocean warming on krill biomass were strongest in the northern Scotia Sea, with a ≥ 40% decline ... in the mass of individual krill. Projections also suggest a 25% chance that krill biomass will fall ...
Meeting Document : WG-EMM-18/P02 : Auteur(s): E.S. Klein, S.L. Hill, J.T. Hinke, T. Phillips and G.M. Watters
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Assessing data requirements for tag-based estimates of local biomass in data-poor and exploratory fisheries
Abstract: This study used an operating model to simulate a Dissostichus eleginoides population in ... achieving the same level of accuracy to 80%, a minimum of 20 tagged fish recaptures were required when ... consider developing criteria such as a minimum number of annual tag-recaptures required in each Research ... in data-poor and exploratory fisheries Microsoft Word File: sam-17-13.docx Approval: Approved ...
Meeting Document : WG-SAM-17/13 : Auteur(s): L. Robinson, P. Burch and K. Reid
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Plan of research program of the Russian Federation in Subarea 48.5
Antarctic which is very similar to the Ross Sea in some respects like shape, bathymetrical profile and ... , fishery in subarea 48.5 is closed based on absent stock assessment. The main objective of the present ... in accordance with CCAMLR decision rules. The program contains several phases and prospected for 5 ... Scientific Committee that data-poor area in the future would need to be consistent with the original research ...
Meeting Document : WG-SAM-15/18 : Auteur(s): Delegation of the Russian Federation