Résultats de la recherche
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A condensed history and document of the method used by CCAMLR to estimate krill biomass (B0) in 2010
(CCAMLR 1995; 1996; 1997; 1998; 1999). In particular two workshops, one planning (SC-CAMLR-XVIII, Annex 4 ... Abstract: Antarctic krill (Euphausia superba) are considered to be one of the key species in the ... , Appendix D) and one analysis (SC-CAMLR-XIX, Annex 4, Appendix G), provide background and detail to the ... . Author(s): S. Fielding, A. Cossio, M. Cox, C. Reiss, G. Skaret, D. Demer, J. Watkins and X. Zhao Title ...
Meeting Document : WG-EMM-16/38 : Auteur(s): S. Fielding, A. Cossio, M. Cox, C. Reiss, G. Skaret, D. Demer, J. Watkins and X. Zhao
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Results of the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2 in the 2013/14 season
year of the multi-year research survey in Divisions 58.4.1 and 58.4.2, the F/V Tronio has returned to ... 58.4.1D and 58.4.1C SSRUs. A prospective estimation of the local biomass (B LOC) of one localized area ... been some Antarctic toothfish recaptured that would allow, in successive years, to estimate the local ... otoliths collection for ageing purposes are also presented. Author(s): R. Sarralde, L.J. López-Abellán and ...
Meeting Document : WG-SAM-14/12 Rev. 1 : Auteur(s): R. Sarralde, L.J. López-Abellán and S. Barreiro (Spain)
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Age-at-length of Patagonian toothfish from the Falkland/Malvinas Islands
crenellations. Two readers undertook one reading each of the sections, estimating age using criteria agreed at ... age data, we estimated total mortality to be Z = 0.27. Author(s): J. Ashford, A. Arkhipkin, C. Jones ... and S. Bobko Title: Age-at-length of Patagonian toothfish from the Falkland/Malvinas Islands Approval ... Abstract: To provide an age-length key for use in modelling the age structure of the Patagonian ...
Meeting Document : WG-FSA-02/74 : Auteur(s): J. Ashford, A. Arkhipkin, C. Jones and S. Bobko
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Decadal trends in the South Georgia demersal fish assemblage
species from two families, the Notoheniidae and the Channichthyidae dominated the survey biomass in all ... biomass were seen across survey years. Species counts were highly variable across the shelf region and ... years accounting for 97% of total demersal fish biomass. The relative abundance of these species was ... demersal fish catch rates was observed with the highest mean CPUE s seen in surveys since 2010 but this was ...
Meeting Document : WG-FSA-13/26 : Auteur(s): M. Belchier (United Kingdom)
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Unhappy feet: the reduction of Adélie and chinstrap penguin populations in the West Antarctic Peninsula/Scotia Sea
chinstrap penguin populations have declined more than 50% during the last 30 years at study colonies in the ... for its revision. Author(s): Submitted by ASOC Title: Unhappy feet: the reduction of Adélie and ...
Meeting Document : CCAMLR-XXX/BG/21 : Auteur(s): Submitted by ASOC
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On peculiarities of icefish (Champsocephalus gunnari) vertical distribution in different habitats
populations ecology has been revealed. Fish of all lengths and ages are planktonphages. Fish of the first two ... age groups have been continuously found in the pelagic layer off South Georgia and Kerguelen-Heard ... , as a rule, are at the bottom in the daytime, however in some years they like immature fish, have been ... caught with pelagic fishing gear in the water column during the daytime. Author(s): J.A. Frolkina ...
Meeting Document : WG-FSA-03/54 : Auteur(s): J.A. Frolkina (Russia) and V.V. Herasimchuk (Ukraine)
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Genetic identification of fish caught as by-catch in the Antarctic krill fishery and comparison with observer records
by observers (5 families; 8 species) was considerably lower than with DNA barcoding (7 families; 20 ... and comparison with observer records Microsoft Word File: emm-18-30.docx Approval: Approved ... of observer taxonomic assignments. Author(s): A. Polanowski, J. Clark, D. Maschette, D. Welsford and ...
Meeting Document : WG-EMM-18/30 : Auteur(s): A. Polanowski, J. Clark, D. Maschette, D. Welsford and B. Deagle
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Investigating the uncertainty of age determinations for Patagonian toothfish (Dissostichus eleginoides) and the implications for stock assessment
. method and the revised Candy method were between the other two methods in terms of year to year ... matrix.We assessed misclassification matrices obtained using the revised Candy method along with two other ... year class strength (YCS) from the CASAL assessment of the HIMI fishery to evaluate the effects of ... expanded the reference collection to include an additional 50 otoliths with a mean age above 25 years. The ...
Meeting Document : WG-FSA-14/46 : Auteur(s): P. Burch, P. Ziegler, W. de la Mare and D. Welsford (Australia)
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Entanglement in man-made debris of Antarctic fur seals at Bird Island, South Georgia
accounted for 64% of animals older than this. Obvious physical injury was being caused to 30% of animals and ... . Males accounted for 71% of entanglements, 88% of which were of young (1-4 years old) animals; females ... entanglement problem is not to increase beyond the level of a potential threat. Author(s): J.P. Croxall, S ...
Meeting Document : CCAMLR-VIII/BG/05 : Auteur(s): J.P. Croxall, S. Rodwell and I.P. Boyd (United Kingdom)
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Avoidance of incidental mortality of seabirds and the implementation of Conservation Measure 169/XVII in Statistical Subarea 88.1 in the 1998/99 season
and rigorous monitoring of line sink rates. In the trials, two autoline vessels set weighted longlines ... were used to record the actual sink rate achieved on 30% of all sets. For all sets combined the average ... Dissostichus spp. in Sub-area 88.1. Daylight setting was allowed south of 65°S in Sub-area 88.1 under special ... trials and the development of new line-weighting technologies is recommended. Author(s): J. Molloy and N ...
Meeting Document : WG-FSA-99/35 : Auteur(s): J. Molloy and N. Smith (New Zealand)