Search results
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A REVIEW OF THE METHODS USED TO RELEASE SKATES (RAJIIDS), WITH OR WITHOUT TAGS, IN ANTARCTIC EXPLORATORY FISHERIES
from this programme showing an unquantifiable degree of the survivorship of returned skates, the CCAMLR ... implemented was that some form of in-water release would be the ideal to improve survival chances ... . Subsequently a number of problems have become evident with this method. The Working Group on Fish Stock ... relaxation of the requirement to cut all rajids from the line on specified vessels and/or for specified time ...
Meeting Document : WG-FSA-08/30 : Author(s): J.M. Fenaughty (New Zealand)
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Identification of Amblyraja species in the longline fishery in Subarea 48.3 – CCAMLR
A.georgiana. Male A. sp.anon attain 50% maturity at a total length of 97cm, 13 cm greater than the length at ... 50% maturity for A.georgiana. Comparisons of colour and patternation were found to be consistent ... proportionally longer claspers to total length (2.77% difference between averages) than male A.sp.anon. 94% of ... captures of A.sp.anon were found at depths >1000m, where 85% of A.georgiana were caught in depths ...
Meeting Document : WG-FSA-02/54 : Author(s): M. Endicott (United Kingdom), L.J.V. Compagno (South Africa) and D.J. Agnew (United Kingdom)
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BIOMASS ESTIMATES AND SIZE DISTRIBUTIONS OF DEMERSAL FINFISH ON THE ROSS SEA SHELF AND SLOPE FROM THE NEW ZEALAND IPY-CAML SURVEY, FEBRUARY-MARCH 2008
Abstract: during February and March 2008 as part of the International Polar Year. The main aim of ... the survey was to carry out a Census of Antarctic Marine Life in this regionfocussing on sampling the ... each stratum. The trawl survey of the shelf area focused mainly on icefishes, notothens, Antarctic ... silverfish, and glacial squid whilst the survey of the slope area was designed to target the macrourid M ...
Meeting Document : WG-FSA-08/31 : Author(s): S.M. Hanchet, M.L. Stevenson (New Zealand), C. Jones (USA), P.M. Marriott, P.J. McMillan, R.L. O’Driscoll, D. Stevens, A.L. Stewart and B.A. Wood (New Zealand)
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric parameter?
sex of individuals, it is only able to correctly sex a certain proportion of birds. Two overlapping ... functions are able to correctly determine the sex of birds with greater than 80% success the difference ... . Combining all data for both sexes is considered as a procedure for avoiding the necessity of sex ... determination, but uncertainty in sex ratios can lead to considerable Type I and Type II errors. Lack of ...
Meeting Document : WG-CEMP-92/11 : Author(s): D.J. Agnew (Secretariat)
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Antarctic krill populations in the outflow region of the north-western Weddell Sea
March 2013. The aim of the survey was to study the zooplankton composition and krill abundance and ... distribution in the outflow region of the Weddell Sea. Due to severe pack-ice conditions, more than half of the ... was below the longterm average of the area. New one-year-old recruits were scarce, the stock was ... dominated by two and three year old krill. Spawning occurred late and numbers of gravid females and larvae ...
Meeting Document : WG-EMM-13/24 : Author(s): V. Siegel (European Union)
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Observations of penguins in the waters off South Orkney Islands, 2011–2013
Abstract: In this study, we introduce the initial results from three seasons (2011-2013) of ... transect lines during five consecutive days within late January and early February. Three species of ... average number of penguins observed per hour increased from year to year, with 7.8 ind/hour in 2011, 32.8 ... the differences in study design, density of prey resources and relevant physical factors. This study ...
Meeting Document : WG-EMM-13/35 : Author(s): B.A. Krafft, G. Skaret (Norway) and P. Trathan (United Kingdom)
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Predicting distribution and relative abundance of mid-trophic level organisms using oceanographic parameters and acoustic backscatter
Abstract: Data on the distribution and abundance of mid-trophic level organisms (MTLOs) in the ... mesopelagic zones, using sea surface temperature, time of day (day/night) and depth. The resulting models ... predicted backscatter reasonably well in the Pacific sector of the SO, and in an independent dataset in the ... Indian sector of the SO. Our predictive models may provide a tool for inferring abundance and ...
Meeting Document : WG-EMM-18/P07 : Author(s): P.C. Escobar-Flores, R.L. O’Driscoll and J.C. Montgomery
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Guidelines for the Administration of the General Capacity Building Fund
Abstract: One of the outcomes of the Capacity-Building Workshop hosted by South Africa was the ... development of the applicable pro-forma and draft Deed of Funding. These documents are attached. Author(s ... ): CCAMLR Secretariat Title: Guidelines for the Administration of the General Capacity Building Fund ...
Meeting Document : CCAMLR-38/BG/19 : Author(s): CCAMLR Secretariat
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Brief information on the results of the bottom trawl and trawl–acoustic surveys carried out by STM Atlantida in the South Georgia subarea (48.3) during January to March 2002
Abstract: The results of researches carried out in expeditions of S?? “?tlantida” in summer ... -autumn period of the southern hemisphere from 30 January to 14 March 2002 are presented. These researches ... included the bottom trawl survey on the shelf of South Georgia, Shag Rocks and Black Rocks (53?10-55?30 S ... Georgia shelf (53?10- 55?30 S, 34?00-39?40 W); series of oceanographic observations. Author(s): V.N ...
Meeting Document : WG-FSA-02/19 : Author(s): V.N. Shnar, V.A. Khvichia and A.P. Malyshko (Russia)
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Procedure for estimating two-hour catches on vessels conducting continuous krill trawling and proposal for adding the description of the procedure as an annex to CM 21-03
Abstract: With reference to comments from WG-EMM 2019, further explanation is provided of the ... catches using a distribution of the estimated two-hour catches derived from holding tank volumes and ... weights accumulated during successive two-hour intervals. The method is a combination of two methods ... additional explanation of the procedure and illustrates the daily records kept by the vessels, as of July ...
Meeting Document : SC-CAMLR-38/19 : Author(s): O.A. Bergstad