Search results
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Some aspects of the relation between Antarctic krill abundance and CPUE measures in the Japanese krill fishery. (Component of SC-CAMLR-VI/BG/4)
time data may be needed to assess the density of swarms in a concentration, but may be difficult to ... record in practice, and a number of other factors may complicate any analysis. The possibility of ... abundance and CPUE measures in the Japanese krill fishery. (Component of SC-CAMLR-VI/BG/4) Approval ... Abstract: The history of the Japanese krill fishery is reviewed briefly. Important aspects of the ...
Meeting Document : WS-KCPUE-89/03 : Author(s): D.S. Butterworth (South Africa)
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An assessment of the impact of krill fishery on penguins in the South Shetlands
intensity to the shelf and slope of Livingston or Elephant Island. In contrast, the food consumption by ... season (December-March) in the South Shetland Islands (Subarea 48.1) was assessed based on available ... information on fishery, penguins and krill biomass. The catch is very low in December followed by roughly ... penguins is estimated to be large in the shelf and slope near King George Island (11,680 t/10-day), whereas ...
Meeting Document : WG-KRILL-93/07 : Author(s): T. Ichii, M. Naganobu and T. Ogishima (Japan)
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Some properties of diagnostics of GLMM model tuning for standardising CPUE indices in the Area 48 using the CCAMLR fishery statistics database
Abstract: The data of krill fishery in Subarea 48 for 1986 – 2008 presented to CAMLR database by ... Tweedie’s distribution satisfactorily describes the set of data collected in Subareas 48.1, 48.2 and 48.3 ... of krill hauls in the CAMLR database for 1986 – 2008. It was shown that extremely high CPUE values ... » outliers by different fleets (countries) in the Subareas 48.1-48.3 were analyzed. The procedures of CPUE ...
Meeting Document : WG-EMM-11/44 : Author(s): P. Gasyukov and S. Kasatkina (Russia)
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Preliminary standardised CPUE analysis of the New Zealand part of the toothfish fishery in CCAMLR Subarea 88.1, from 1988/89 to 2002/03
to 2003, in Subareas 88.1 and 88.2 in the region of the Ross Sea. A preliminary standardised analysis ... the New Zealand part of the toothfish fishery in CCAMLR Subarea 88.1, from 1988/89 to 2002/03 Approval ... alternative toothfish CPUE analyses for the 1998 to 2002 seasons. The analysis of a data subset including only ... relatively poor fit to the data. The variables depth, soaktime, length of line, area, and season, entered the ...
Meeting Document : WG-FSA-03/43 : Author(s): R.G. Blackwell and S.M. Hanchet (New Zealand)
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New corrections factors for the quantification of fish represented in pellets of the blue-eyed shag Phalacrocorax atriceps
necessary for the quantification of fish represented in pellets. These factors were obtained for Notothenia ... corrections factors for the quantification of fish represented in pellets of the blue-eyed shag Phalacrocorax ... cast) of the blue-eyed shag or imperial cormorant Phalacrocorax atriceps collected throughout the ... , Notolepis coatsi and Electrona antarctica were represented in pellets but not found in the stomach contents ...
Meeting Document : WG-EMM-95/83 : Author(s): Silva, P., Casaux, R., Favero, M., Barrera-Oro, E.
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A critical re-examination of the evidence for a possible dependence of Weddell seals (Leptonychotes weddellii) on Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica
(Dissostichus mawsoni; ‘toothfish’) in the Ross Sea may affect the ecological viability of top predators such as ... of potential prey species including toothfish in the context of updated estimates of Weddell seal ... antarcticum) in Weddell seal diets should be re-examined given the known biases of methods used to derive diet ... the assumptions underlying application of stable isotope methodology to Weddell seals, and estimate ...
Meeting Document : WG-EMM-13/28 : Author(s): R. Eisert, M.H. Pinkerton (New Zealand), S.D. Newsome and O.T. Oftedal (USA)
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Indicators of krill flux at various spatial-temporal based on the data of multi-year research carried out in the Scotia Sea. Comments on krill fishery management
understanding of krill biomass dynamic. It has been shown that the formation of transport of krill in the ... Weddell Sea. The data obtained demonstrate that the dynamics of krill biomass in a given area is more ... Abstract: The subject of research was geostrophic circulation of water masses, spatial ... flow at various spatial-temporal scales in the Scotia Sea. According the discussion at WG-EMM-2018 ...
Meeting Document : WG-EMM-2019/58 : Author(s): S. Kasatkina and V. Shnar
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Demersal fishing interactions with marine benthos in the Southern Ocean: an assessment of the vulnerability of benthic habitats to impact by demersal gears
Dissostichus spp. with marine benthos in the Australian EEZ of the Southern Ocean. Key outcomes of this project ... shelf • An assessment of the vulnerability of benthic habitats to impact by demersal gears in the Sub ... ): Delegation of Australia Title: Demersal fishing interactions with marine benthos in the Southern Ocean: an ... will include: • Compact camera systems which will be able deployed by scientific observers in the ...
Meeting Document : SC-CAMLR-XXVI/BG/30 : Author(s): Delegation of Australia
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The importance of Antarctic Toothfish as prey of Weddell Seals in the Ross Sea: a Review
prey of top predators in the Ross Sea. We herein assess relative weight given to direct, observational ... importance of Antarctic Toothfish as prey of Weddell Seals in the Ross Sea: a Review Approval: Approved ... Abstract: Uncertainty exists over the importance of Antarctic toothfish (Dissostichus mawsoni) as ... of large toothfish and therefore they are not detected in scat or stomach samples; biochemical ...
Meeting Document : WG-EMM-09/P02 : Author(s): D.G. Ainley and D.B. Siniff
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A methodological proposal to monitor changes in coastal fish populations by the analysis of pellets of the blue-eyed shag Phalacrocorax atriceps
. The methodology considered is based in the analysis of regurgitated pellets of the blue-eyed shag ... changes in coastal fish populations by the analysis of pellets of the blue-eyed shag Phalacrocorax ... Phalacrocorax atriceps. The fundaments of the proposal as well as the methods tested and the steps followed are ... Abstract: A proposal to monitor changes in coastal fish populations is presented in this document ...
Meeting Document : WG-EMM-95/84 : Author(s): Barrera-Oro, E., Casaux, R.