Resultados de la búsqueda
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Results of study of the oogenesis characteristics of Antarctic toothfish (Dissostichus mawsoni Norman 1937) (Nototheniidae) from Subareas 88.1 and 88.2 (Ross Sea)
mawsoni) reproductive system, caught in December-March, 2004-2005 by the longliner VOLNA in subareas 88.1 ... and 88.2 in the Ross Sea are presented. The morphological parameters, indices of gonads have been ... toothfish ovaries from the stages II to IV show a slow increase in oocyte diameter. It was shown that for ... % of total cell number. The oocytes in the ovaries of analyzed fish did not reach the maximum size ...
Meeting Document : WG-FSA-07/49 : Autor(es): S. V. Piyanova and A.F. Petrov (Russia)
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Proposal to standardise the submission of meeting documents to working groups
Committee, WG-EMM and WG-FSA (including ad hoc WG-IMAF). In doing so, the Secretariat noted some Working ... Group-specific differences in relation to: submission deadline; exception to the deadline; and approach ... to accepting revised documents. WG-EMM agreed that standardising the Working Groups’ guidelines in ... Secretariat’s work in preparing information and documents for meetings. Consequently, WG-EMM agreed to a ...
Meeting Document : WG-FSA-05/15 : Autor(es): Secretariat
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Sounds like more krill
Abstract: Antarctic krill, Euphausia superba, comprise the foundation of the food-web in the ... Southern Ocean and are the target of a large fishery. Recently, the total abundance of krill in the Scotia ... Conservation of Antarctic Marine Living Resources (CCAMLR) to revise the precautionary catch level for krill in ... strength (TS). Presented here is a re-analysis of the CCAMLR 2000 data incorporating recent improvements in ...
Meeting Document : WG-EMM-04/41 : Autor(es): D.A. Demer and S.G. Conti (USA)
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MaxEnt reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia 1996–2000
gathered in the boxes in austral summers 1996 – 2000. Krill densities had previously been determined at ... approximately 0.5 km intervals along transect for each of the ten 80 km transects in each box, providing about ... probable krill density for each of the 32000 0.5 km x 0.5 km cells in each survey box, taking explicit ... account of the spatial relationship between densities in the observed data. Despite some very large ...
Meeting Document : WG-EMM-02/36 : Autor(es): M.H. Wafy, A.S. Brierley, S.F. Gull and J.L. Watkins (United Kingdom)
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Climate change and precautionary spatial protection: ice shelves
Abstract: Regional climate change is now known to be well established in the Antarctic ... , particularly in the Antarctic Peninsula region. One of the most evident signs of climate change has been ice ... shelf collapse; overall, 87% of the Peninsula’s glaciers have retreated in recent decades. Ice shelf ... to return that were last present during the last interglacial, a warmer period than at present. In ...
Meeting Document : WS-MPA-11/17 : Autor(es): P.N. Trathan and S.M. Grant (UK)
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IDENTIFICATION OF DATA QUALITY METRICS FOR TAGGING DATA SELECTION
quality metrics may be most powerful in distinguishing the trips considered to have good tagging data ... . These include metrics for taxonomic resolution in the observer data, goodness of fit of catch data to ... Benford's Law, and the variation in toothfish catch rates.This reduced set of data quality metrics ... could be helpful in the identification of trips which have similar data quality to the known “good data ...
Meeting Document : WG-SAM-09/19 : Autor(es): D.A.J. Middleton and A. Dunn (New Zealand)
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Distribution and biology of grey notothen (Lepidonotothen squamifrons) around South Georgia and Shag Rocks (Southern Ocean) CCAMLR Subarea 48.3.
regulations in 1989 have meant it is now only caught in sub-area 48.3 during research surveys. Data collected ... distribution, size, maturity, and diet. Distribution was patchy with aggregations in specific ‘hotspots’ to the ... dominated by salps/tunicates, but with ontogenetic and depth variations in prey composition. Enhanced ... knowledge of L. squamifrons in this region will be valuable in future research on habitat and foodweb ...
Meeting Document : WG-FSA-12/34 : Autor(es): S. Gregory, J. Brown and M. Belchier (United Kingdom)
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Review of fishery monitoring and forecast procedures
groups) in CCAMLR fisheries, including catches taken from small-scale research units and other management ... closed 68 fishing areas, and the total catches of Dissostichus in areas closed using the forecast model ... will operate in the future in the same way as it did in the period from which the data are used to make ... will be inaccurate. A range of management options are considered in response to a catch overrun. The ...
Meeting Document : WG-SAM-13/06 : Autor(es): Secretariat
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CCAMLR protocol for krill biomass estimation
the B 0 workshop held in La Jolla, USA, in May 2000 (SC-CAMLR-XIX, Annex 4, Appendix G). A number of ... changes in assessing krill target strength (TS) and identifying acoustic targets have been introduced via ... ; Conti and Demer, 2005) that led to the re-analysis of the CCAMLR-2000 survey at a workshop held in ... Cambridge, UK, in June 2010 (SC-CAMLR-XXIX, Annex 5). There remains some ambiguity to the interpretation of ...
Meeting Document : SG-ASAM-16/02 : Autor(es): S. Fielding, A. Cossio, M. Cox, C. Reiss and G. Skaret
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Important marine mammal areas (IMMAs) – scientific protocol
Abstract: The Marine Mammal Protected Areas Task Force (MMPA Task Force) was established in 2013 ... marine mammal species, and which have the potential to be managed in terms of species/habitat ... conservation. The identified "Important Areas for Marine Mammals" (IMMAs) make it possible to put in ... the identification of IMMAs and the programme for identification in the marine regions of the world ...
Meeting Document : WG-EMM-2019/80 : Autor(es): S. Gallon, P. Marras-Aït Razouk and Y. Ropert-Coudert