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A comparison between otoliths and scales for use in estimating the age of Dissostichus eleginoides from South Georgia
. Sustainable exploitation rates should have been 20-30% of that based on age determinations from scales, in ... use of otoliths and scales in estimating tootlifish age 0 10 20 30 40 50 10 20 30 40 50 Reader l ... years. However, a validated age method using otoliths demonstrated that fish in the commercial fishery ... in fact ranged between 4 and 40 years, indicating slower growth and a much less productive fishery ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 75–92 : Autor(es): Ashford, J.R., S. Wischniowski, C. Jones, S. Bobko and I. Everson
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Predation release of Antarctic silverfish (Pleuragramma antarctica) in the Ross Sea
contributed to the increase in Adélie penguin numbers. This paper brings together information on the biomass ... . These Antarctic toothfish were sampled over three years, between 2011/12 and 2013/14. The mass of ...
Meeting Document : WG-EMM-15/53 : Autor(es): M.H. Pinkerton, P. Lyver, D. Stevens, J. Forman, R. Eisert and S. Mormede (New Zealand).
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[node:field-journal-volume]:37-51
40 50 60 70 80 90 100 0 5 10 15 20 25 30 35 40 45 50 55 60 Age (years) To ta l l en gt h ... . holotrachys Species identifi cation and age estimation for M. whitsoni 44 Marriott et al. 0 10 20 30 ... linear regressions. Males y = 0.3287x + 0.511 R2 = 0.865 n = 552 0 10 20 30 40 0 20 40 60 80 100 ... ) Females y = 0.3917x - 1.9855 R2 = 0.923 n = 900 0 10 20 30 40 0 20 40 60 80 100 Total length (cm ...
Science Journal Paper : 37–51
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BEACH DEBRIS SURVEY – MAIN BAY, BIRD ISLAND, SOUTH GEORGIA 2006/2007
Island, South Georgia (covering the period 1 October 2006 to 30 September 2007) a total of 365 items were ... previous years: 73% during summer (265 items) and 27% during winter (100 items). After three consecutive ... years in which no fisheries related debris was observed, one nylon fishing line and one snood were found ... Abstract: During the seventeenth year of standardised beach surveys of man-made debris at Bird ...
Meeting Document : WG-FSA-08/24 : Autor(es): F. Le Bouard (UK)
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Admiralty Bay (South Shetland Islands) - long-term marine monitoring program
the site of comprehensive environmental studies over the last 30 years and existing data sets provide ... ". This project will continue to develop over the coming years and results we will be presented and ...
Meeting Document : WG-EMM-15/47 : Autor(es): A. Panasiuk-Chodnicka, M. Korczak-Abshire, M.I. Żmijewska, K. Chwedorzewska, E. Szymczak, D. Burska, D. Pryputniewicz-Flis and K. Łukawska-Matuszewska (Poland)
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Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Patagonian toothfish (Dissostichus eleginoides) in Statistical Division 58.5.2
seabird mitigation measures since the initial fishing season in 2003. Over the years, CCAMLR has agreed to ... add season extensions from 15-30 April and 15 September- 31 October to the core season. In 2015 ... , CCAMLR XXXIV (para. 5.68) endorsed new pre-season (1-14 April) and post-season (15-30 November) season ... pre-season extension from 15-30 April. Given the specification and application of effective seabird ...
Meeting Document : WG-FSA-2019/31 : Autor(es): P. Ziegler, T. Lamb, S. Wotherspoon and J. Dell
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CCAMLR-XXIII
fisheries for Dissostichus spp. in the 2004/05 season (Division 58.4.3b) Delegation of Japan CCAMLR-XXIII/20 ... Delegation of Ukraine CCAMLR-XXIII/30 Notification by Ukraine of its intention to continue an exploratory ... OECD workshop on IUU fishing(Paris, France, 19–20 April 2004) Executive Secretary CCAMLR-XXIII/BG/04 ... –30 juin 2004) Informations générales sur la zone 58 de la CCAMLR Délégation française CCAMLR-XXIII/BG ...
Meeting
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Using ecosystem monitoring data to detect impacts
within a few years of its onset, but a fixed reference point method could have provided this sustained ... if at ≤ acrit in two or more years of a four-year refer- ence period. Summary of methods: anomalies ... ‘trend’, a linear change to these parameters over the 20-year simulation period. Shift Trend Pcrit ... 10 years 15 years all years 0.05 0.1 0.25 0.0 0.2 0.4 0.6 0.8 1.0 10th percentile Year 1984 ... years 10 years 15 years all years 0.05 0.1 0.25 0.0 0.2 0.4 0.6 0.8 1.0 10th percentile Year ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 197–212 : Autor(es): Hill, S.L., J. Forcada, P.N. Trathan and C.M. Waluda
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Data on krill (Euphausia superba Dana) consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)
krill consumed is between 166 and 450 million tonnes; of this amount fish consume from 30 to 32 million ... the Sodruzhestva and Kosmonavtov Seas over many years by the YugNIRO institute. Data obtained from ... calculated for a depth range of 100 to 500 metres in waters between 30 and 80°E. Krill consumption was ... 166 and 450 million tonnes; of this amount fish consume from 30 to 32 million tonnes (Lubimova ... Sodruzhestva and Kosmonavtov Seas over many years by the YugNIRO institute. Data obtained from trawl and ... for a depth range of 100 to 500 metres in waters between 30 and 80°B. Krill consumption was estimated ... de tonnes, dont 30 a 32 sont consommees par des poissons (Lubimova and Shust, 1980; Shust, 1987 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 305–319 : Autor(es): Pakhomov, Y.A., V.A. Bibik and V.V. Gerasimchuk
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e-sc-xxvii-a4.pdf
... include a 20-year period with fishing followed by a 20-year recovery period with no fishing; (iv) model ... objectives of Article II of the CAMLR Convention. WG-SAM recommended that performance measures should be ... technical queries on model structure were raised by WG-EMM. However, the Working Group did consider a ... the very early years of the fishery. Dr Kawaguchi further suggested that the fishing strategy
application/pdf attached to:WG-EMM-08Meeting Report : WG-EMM-08