Search results
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Exploration of CPUE standardisation variances in the Ross Sea (Subareas 88.1 and 88.2A South of 70°s) Antarctic toothfish (Dissostichus mawsoni) exploratory longline fishery
Abstract: Catch rates or catch per unit of effort (CPUE) are used for data-poor exploratory ... interim of collecting sufficient tag recaptures. Here, we address the two questions: (1) which unit of ... such as gear type, vessel, fishing season, month, bait, fishing depth and area affect estimates of ... trend and magnitude of catch rates. Using data from the Ross Sea Antarctic toothfish fishery, we ...
Meeting Document : WG-SAM-2019/25 : Author(s): D. Maschette, S. Wotherspoon and P. Ziegler
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On the very high likelihood of bycatch of ice krill (Euphausia crystallorophias) in the present-day fishery for Antarctic krill (E. superba)
, Scotland, June 2017) attended by representatives of the Association of Responsible Krill harvesting ... companies (ARK), the Marine Stewardship Council (MSC) and CCAMLR, it became apparent that no bycatch of Ice ... a condition of their fishing permits to report all bycatch. Since the present-day Antarctic krill ... fishery operates in geographic areas that overlap with the known range of Ice krill, that Ice krill and ...
Meeting Document : WG-EMM-18/05 : Author(s): A.S. Brierley and R. Proud
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Plan of research program of the Russian Federation in Subarea 48.5 (Weddell Sea) in season 2016/17
Abstract: Closed mostly within the Weddell Sea Subarea 48.5 is one of the closed data-poor CCAMLR ... subareas, where stock assessment should be carried out. In spite of hard ice conditions at most part of the ... of the first and the second stage of this program. It highlights the Weddell Sea as one of the most ... promising area for exploratory fishery of Dissostichus sp. However, fishery in Subarea 48.5 is closed on the ...
Meeting Document : WG-SAM-16/25 : Author(s): Delegation of the Russian Federation
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Plan of the research program of Russian Federation in Subarea 48.5 (Weddell Sea) in season 2017/18
Abstract: Closed mostly within the Weddell Sea Subarea 48.5 is one of the closed data-poor CCAMLR ... subareas, where stock assessment should be carried out. In spite of hard ice conditions at most part of the ... of the first and the second stage of this program. It highlights the Weddell Sea as one of the most ... promising area for exploratory fishery of Dissostichus sp. However, fishery in Subarea 48.5 is closed on the ...
Meeting Document : WG-SAM-17/22 : Author(s): Delegation of the Russian Federation
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Plan of the research program of Russian Federation in Subarea 48.5 (Weddell Sea) in season 2017/18
Abstract: Closed mostly within the Weddell Sea Subarea 48.5 is one of the closed data-poor CCAMLR ... subareas, where stock assessment should be carried out. In spite of hard ice conditions at most part of the ... of the first and the second stage of this program. It highlights the Weddell Sea as one of the most ... promising area for exploratory fishery of Dissostichus sp. However, fishery in Subarea 48.5 is closed on the ...
Meeting Document : WG-FSA-17/25 : Author(s): Delegation of the Russian Federation
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Further calculations of the effects of krill fishing on predators
random component in the relationship between krill biomass and availability. An examination of the ... consequences in the case of the blackbrowed albatross suggest that these other factors result in yet lesser ... resilience of the albatross population to the effects of a krill fishery. An approach for estimating the ... parameters of functional relationships between survival rates and krill biomass (or availability) is ...
Meeting Document : WG-Krill-94/24 : Author(s): D.S. Butterworth and R.B. Thomson (South Africa)
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Estimation of the biomass of krill in Prydz Bay during January/February 1991 and February/March 1992 using echo integration
Abstract: Hydroacoustic surveys of the abundance of krill (Euphausia superba) in the Prydz Bay ... association of krill with the shelf break in the western part of the survey area but also found that the shelf ... break was in general not a region of relatively high krill abundance. The mean surface density of krill ... estimates of 1.95, 3.45 and 1.78 g/m2 for statistical areas 48.1, 48.2 and 48.3 (SC-CAMLR 1991, p47) but ...
Meeting Document : WG-KRILL-92/23 : Author(s): I. Higginbottom and T. Pauly (Australia)
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A comparison of densities and length distribution of the Champsocephalus gunnari stock in Subarea 48.3 between years 1994 and 1995
Abstract: Mean densities and length structure of Champsocephalus gunnari obttained in the 1994 ... determined by a search procedure yielding randomly selected clusters of stations located within the 50–150 ... design. Forty five stations in the first cruise and 48 in the second were analyzed. Of these, 51 pairs of ... depth strata in the South Georgia Islands shelf, while density remained stable at Shag Rocks. The fit of ...
Meeting Document : WG-FSA-95/34 : Author(s): Marschoff, E., Calcagno, J., Gonzalez, B.
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BEACH DEBRIS SURVEY AND INCIDENCE OF ENTANGLEMENT OF ANTARCTIC FUR SEALS ARCTOCEPHALUS GAZELLA AT SIGNY ISLAND, SOUTH ORKNEY ISLANDS 2007/2008
Abstract: This report details the twelfth annual survey of the incidence of entanglements of ... Antarctic fur seals Arctocephalus gazella and eighteenth beach survey of man-made debris at Signy Island ... of 56 items weighing 11 kg, representing an increase from 2006/07 of 11% (by number) and 33% (by mass ... ). There was a decrease in the number of plastic packaging bands with only two found in the current season ...
Meeting Document : WG-FSA-08/26 : Author(s): M.J. Dunn and C.M. Waluda (UK)
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A brief outline of the biology of the Antarctic silverfish, Pleuragramma antarcticum Boulenger, 1902 (Nototheniidae) from the Antarctic Indian Ocean
Abstract: The Antarctic silver fish (Pleuragramma antarcticum) is one of the most numerous ... species in the outer waters of Antarctica. In the Indian sector of the Southern Ocean there are at least ... there are macro aggregations of plankton, while fish aged from 3+ to 12+ years form near-bottom, pelagic ... when they reach 13-16 cm in length and 4-6 years of age. Males reach maturity at 12-18 cm in length and ...
Meeting Document : WG-FSA-92/11 Rev. 1 : Author(s): V.V. Gerasimchuk (Ukraine)