Resultados de la búsqueda
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Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. with special reference to the information on spawning dynamics in Division 58.4.3a
at the WG-FSA in 2013 in order to maximize the expectation of tag-recapture to the extent possible ... Abstract: The current season (2014/15) is the final one of the first three-season research which ... numbers of tag recaptures from the estimated stock sizes using the Petersen method were generally ... results in other regions in the Southern Indian Ocean. The stock seems to be self-sustainable because of ...
Meeting Document : WG-FSA-15/19 : Autor(es): Delegation of Japan
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A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)
Abstract: A model is set up for the operation (which includes both searching and fishing) of a ... whose parameters are determined primarily from the scientific FIBEX surveys. Output from the model of ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ...
Meeting Document : WS-KCPUE-89/04 : Autor(es): D.S. Butterworth (South Africa)
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A simulation study of krill fishing by an individual JAPANESE trawler
Abstract: A model is set up for the operation (which includes both searching and fishing) of a ... whose parameters are determined primarily from the scientific FIBEX surveys. Output from the model of ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ...
Meeting Document : SC-CAMLR-VII/BG/37 : Autor(es): D.S. Butterworth (Invited Expert)
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A spatially explicit population dynamics operating model for Antarctic toothfish in the habitable depths of the Ross Sea region
) covering the Ross Sea region. In this model run we spatially restrict the stock to cells where at least 5 ... % of the depth is deemed suitable as habitat for toothfish (120 cells – semi-restricted model), and ... – restricted model) or allowed to occupy the entire Ross Sea region including depths outside of those normally ... about the distribution of toothfish in areas where no fishing has occurred, such that the unrestricted ...
Meeting Document : WG-FSA-13/53 : Autor(es): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Gonad analysis of Antarctic toothfish in Subareas 58.4 and 88.3
. Frequency of ovarian development stages of Antarctic toothfish showed the highest proportion with 45.4% at ... Abstract: The ratio of female among the 600 specimens of Antarctic toothfish collected from the ... found to be 0.50, and displayed the tendency of increase with increase in the total length 140 cm. The ... gonadosomatic index of the fish was 2.5 for the female, and 1.7 for male. The hepatosomatic index of female ...
Meeting Document : WG-FSA-17/09 : Autor(es): J. Kim, S.-G. Choi, J. Lee, J. Lee and D. An
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Spatial and seasonal distribution of adult Oithona similis in the Southern Ocean: predictions using boosted regression trees
, with surface abundances 20% higher at night than during the day. There was no evidence of diel ... trees to derive relationships between environmental conditions and the distribution of the adult stage ... of the cyclopoid copepod Oithona similis in the Southern Ocean. Nearly 20 000 samples from the ... probability of detection (presence) and relative abundance of adults of this zooplankton species in surface ...
Meeting Document : WG-EMM-10/P14 : Autor(es): M.H. Pinkerton, A.N.H. Smith, B. Raymond, G.W. Hosie, B. Sharp, J.R. Leathwick and J.M. Bradford-Grieve
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The breeding biology and distribution of Adelie penguins: adaptations to environmental variability
breeding areas by Adelie penguins, following two to three years of failure at "poor" sites ... biomass of the Western Antarctic Peninsula region, and serve as focal animals for our Long Term Ecological ... Research (LTER) study of the effects of environmental variability on animal populations in the Antarctic ... of Adelie penguins in the Southern Ocean are variability in sea ice cover, ocean circulation patterns ...
Meeting Document : WG-EMM-96/58 : Autor(es): Fraser, W.R., Trivelpiece, W.Z.
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The distribution of spatial management and Antarctic krill catch across pelagic bioregions in the Southern Ocean
provide standardised and accessible information on the location and extent of spatial fisheries management ... measures in the Southern Ocean. We used the GIS in combination with catch data and the results of the 2007 ... CCAMLR bioregionalisation exercise to examine the relative spatial distribution of fishing activities ... , existing management, and ecological characteristics. Such analysis is a necessary part of systematic ...
Meeting Document : WG-EMM-12/15 : Autor(es): S.M Grant, S.L. Hill and P. Fretwell (United Kingdom)
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Discussion on recent results from an integrated assessment of Antarctic krill (Euphausia superba) in Subarea 48.1
-assessment framework for Antarctic krill (Euphausia superba) to assimilate multiple sources of survey data ... were pooled at annual, seasonal, and monthly time scales. The data were from research cruises ... from three of the models provide a robust picture of changes in the krill population. An annual model ... . Differences in scaling of biomass estimates between the annual models and the more highly resolved models ...
Meeting Document : WG-EMM-14/35 : Autor(es): G.M. Watters, C.S. Reiss and D. Kinzey (USA)
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Development of a five-year work plan for the CCAMLR Scientific Committee
Abstract: At last year’s meeting, it was agreed that a five-year work plan for the Scientific ... , paragraphs 13.8 to 13.20). It was agreed that the work should be led by the Chair of the Scientific Committee ... with input from the conveners of its working groups and that it should be made available for ... the first stage in the development of the five-year work plan and draws on recommendations arising ...
Meeting Document : WG-EMM-17/02 : Autor(es): M. Belchier (Chair of SC-CAMLR)