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Differentiation of independent populations of Antarctic krill
: Several countries have recently shown an interest in commercial krill fishing. An understanding of krill ... population structure is needed to establish sound management of krill fisheries. A short review is undertaken ... circulation. On the basis of the review, it is suggested that there is probably one composite population of E ... may be habitats of independent krill sub-populations. A proposal is given for future studies into ... -to-year and seasonal fluctuations ; 6. study of the causes of fluctuation 7. setting up of an ... INDEPENDENT POPDLATIONS OF ANTARCTIC KRILL D.S.S.R. Abstract Several countries have recently shown an ... interest in commercial krill fishing. An understanding of krill population structure is needed to ... establish sound management 'of krill fisheries. A short review is undertaken of recent studies in genetic ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Autor(es): USSR
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Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2017/18
, at Signy Island, South Orkneys and at Goudier Island, Antarctic Peninsula for the period April 2017 ... to March 2018. Surveys of beached marine debris at Bird Island recorded a total of 371 items during ... austral winter (April to September 2017) and 111 items during summer (October 2017 to March 2018 ... 2017 to 31 March 2018). Twenty-seven items of beached marine debris were recorded at Goudier Island ...
Meeting Document : SC-CAMLR-XXXVII/BG/21 : Autor(es): C. Waluda
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Physical data used in space averaging: Trophic modelling of the Ross Sea
Arrigo & van Dijken (2004), were derived for an area bounded to the north and east by approximately by ... still remain for study, but maybe not for long. Marine Ornithology 30(2): 55-62. Anderson, J.B. 2000 ... ; Gloersen & Cavalieri. 1986). Multiyear/landfast ice is taken as the minimum area during a year having an ... Eicken (2003). We assume that the minimum average sea ice thickness for single year ice occurs on 1 ...
Document : Site Section: Publications
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Results of a longline survey on seamounts in the southeast Atlantic and in Subarea 48.6 and Division 58.4.4
vary from 1:1. Females accounted for 70% of individuals of more than 90 cm in total length. The stratum ... shallow water. The sex ratio of immature D. eleginoides less than 90 cm total length did not significantly ... . Females accounted for 70% of individuals of more than 90 cm in total length. The stratum with the highest ... P.A. Hulley and an anonymous reviewer for their useful comments on the manuscript and for pointing ... Banks: n = 136, mean length = 111.8 20 a, 0) m 15 0 a 10 5 0 40 45 50 55 60 65 70 75 80 ... ratio of immature D. eleginoides less than 90 cm total length did not significantly vary from 1:l ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 99–116 : Autor(es): López Abellán, L.J. and J.F. González Jiménez
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Abundance and trends in the breeding population of Adélie penguins (Pygoscelis adeliae) in the western Ross Sea
-1.8% for the years, 1981-2000 followed by a positive per capita growth rate of 5.5% for the years ... Cape Royds for the years, 1981 to 2012. Colony growth rates for the southern Ross Sea meta-population ... during their breeding since they did not ground for any period adjacent to those colonies suggesting an ... Abstract: The Adélie penguin (Pygoscelis adeliae) is an indicator species used by the CCAMLR ...
Meeting Document : WG-EMM-13/30 : Autor(es): P. O’B. Lyver, M. Barron, K.J. Barton, S. Gordon (New Zealand), D. Ainley, A. Pollard (USA), P.R. Wilson and M.H. Pinkerton (New Zealand)
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Krill catch distribution in relation to predator colonies, 1987-1991
48.2 is shown. 74-90% of catches in Subarea 48.1 are taken within 100 km of predator colonies between ... period. The pattern of fishing is very consistent in all years 1988-1991 in Subarea 48.1, but is more ...
Meeting Document : WG-KRILL-92/18 : Autor(es): Secretariat
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Integration of CPUE data into assessments using the Generalised Yield Model
/ Description: For the last three years, CCAMLR's Working Group on Fish Stock Assessment (WG-FSA) has ... the use of importance sampling, for incorporating information on trends in standardised CPUEs into GYM ... assessments. The use of the method is illustrated using data for Patagonian toothfish (Dissostichus ... year Y is the latest year for which we have data from the fishery, and simulation years Y+l to Y+P ... Model, importance sampling, stock assessment, CCAMLR INTRODUCTION For several years CCAMLR's Working ... , the GYM is a general age-str~~ctured fish stock projection model for assessing the long-term annual ... catches. Recruitme~~ts in future years and in determining the age composition of the population at the ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Autor(es): Kirkwood, G.P. and A.J. Constable
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RECRUITMENT AND BODY SIZE IN RELATION TO TEMPERATURE IN JUVENILE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) AT SOUTH GEORGIA
forecasts of years of good or poor recruitment for the toothfish fishery at South Georgia Author(s): M ... , South Atlantic. Data from 13 demersal trawl surveys conducted over a 20-year period were analysed ... attained after 13-15 months was higher in years of high juvenile abundance and was significantly inversely ... mirrored those previously observed in a range of krill-dependent land-based predators at South Georgia for ...
Meeting Document : WG-FSA-08/P02 : Autor(es): M. Belchier and M.A. Collins
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Monitoring Antarctic toothfish (D. mawsoni) recruitment in the southern Ross Sea
variability, and recruitment autocorrelation for an Antarctic toothfish stock. The continuation of the time ... the appearance of a second strong year class in 2016. Although the changes in age frequency were ... recruitment variability, are key inputs for integrated assessments of fish stocks. A quantitative longline ... from 2012 to 2015 followed by a sharp increase in 2016 and 2017. The scaled age and length frequency ...
Meeting Document : WG-FSA-17/57 : Autor(es): S.M. Hanchet, S. Mormede, S. Parker, K. Large, A. Dunn and B. Sharp
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Sea-surface temperature and krill catches around South Georgia in December–February 1989–1991 and 1999–2001
. Analyses of the data at the beginning of each summer season could enable us to evaluate the potential for ... considerable decrease in mean SST off South Georgia. This observation is especially obvious for the northern ... up to +0.71°C in 1990/91, whereas it was-1.2°C in 2000/01 (for the 1999/2000 season the SST anomaly ... in the area. The total catch of krill was 81 369 tonnes in 1989/90 and 123 562 tonnes in 1990/91 ... could be verifi ed only by comparing forecasts with actual krill catches for a number of years. The ... the entire year. The reliability of forecasts for krill catches based on hydrological information ... Georgia waters (Subarea 48.3) for December–February of 1989–1991 and 1999–2001. Year Month Cell 1 Cell ... 11 vanyushin PROOF for pdf.indd CCAMLR Science, Vol ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 165–174 : Autor(es): Vanyushin, G.P