Résultats de la recherche
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A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
highly skewed, with medians in the three years of 621, 2 852 and 550 birds respectively. 95% confidence ... with IUU fishing. The mean and variance of fish catch rate was calculated for each area and each year ... Paper Title: A statistical method for estimating the level of IUU fishing: application to CCAMLR ... -documented fisheries protection vessel (FPV) cruise data. The method takes explicit account of both ‘seen ... longliners licensed to fi sh in South Georgia and the South Sandwich Islands have a mean of 355 tonnes (SD ... skewed, with medians in the three years of 621, 2 852 and 550 birds respectively. 95% confi dence limits ... arrests by UK authorities, and the identifi cation of large areas in the Indian Ocean sector where tooth ... levels of IUU activity. Each year CCAMLR has made estimates of the level of IUU catch in Subarea 48.3 ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Auteur(s): Agnew, D.J. and G.P. Kirkwood
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Chapter 3: Role of CCAMLR within the Antarctic Treaty System
protected areas and consideration of climate change. In 2019 and 2022, the Scientific Committee explicitly ... with the ATCM to identify priority matters of shared interest and/or responsibility with the Commission ... focussed on the five issues of common interest agreed at the second Joint CEP–SC-CAMLR workshop (Santiago ... made aware of and are supported to ensure, where relevant, compliance with obligations arising from the ...
Page : Site Section: The Organisation
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Movement, growth and available abundance to the fishery of Dissostichus eleginoides Smitt, 1898 at Heard Island, derived from tagging experiments
Patagonian toothfish (Dissostichus eleginoides) in different sectors of the Southern Ocean are considered to ... these data. The bulk of the data show that fish disperse only a very short distance, up to 15 n miles in ... most cases, from their point of release. This may be explained in part because of the concentration of ... resident during their phase in the depth range of the fishing grounds, but they move on once they approach ... ) in different sectors of the Southern Ocean are considered to be genetically distinct. However, in ... ). Movement, growth and trends in fi sh abundance are examined using these data. The bulk of the data show ... release. This may be explained in part because of the concentration of fi shing in the established ... grounds, which makes recaptures more likely in the same place as marking. The concentration of effort ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 33–48 : Auteur(s): Williams, R., G.N. Tuck, A.J. Constable and T. Lamb
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Dynamics of Notothenia rossii rossii size-age structure on the Kerguelen Islands shelf
. In May-June 1991 the mean length was 59.2 cm, mean age was 7.4 years; some 70% of catch consisted of ... Islands shelf in the period from 1970 to 1991, dynamics of size- age structure of marbled rockcod ... used to characterise the age composition. It was determined that in the initial years of exploitation ... a result of fisheries, the share of the fish spawning for the first time increased considerably in ...
Meeting Document : WG-FSA-94/04 : Auteur(s): P.B. Tankevich (Ukraine)
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Distribution, biomass and characteristics of the Euphausia superba fishery around South Georgia (Subarea 48.3)
variability and the wide range of biomass values obtained which in turn leads to uncertainty in interpreting ... variability in the scale of krill swarms and to attempt to determine more reliable values of its biomass after ... in a month. It also usually decreases in spring, regardless of the type of water circulation. Annual ... differences in krill biomass are undoubtedly associated with the volume of krill brought here by waters of the ... biomass bearing in mind the vertical distribution characteristic of euphausiids. Mean biomass was also ... and the wide range of biomass values obtained which in turn leads to uncertainty in interpreting kriU ... in the scale of krill swarms and to attempt to determine more reliable values of its biomass after a ... eight times in a month. It also usually decreases in spring, regardless of the type of water ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 123–147 : Auteur(s): Latogursky, V.I., R.R. Makarov and L.G. Maklygin
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The migration patterns of Electrona carlsbergi (Tåning, 1932)
component for E. carlsbergi, is undergoing rapid development. In various areas of the SPFZ and in all ... of age, indicating dominance by a single cohort. Moreover, a very similar size composition in the ... specimens in the Subantarctic zone, classified as a breeding area, decreases to 20-40%, while the number of ... mature specimens 8.5-11 cm in length and 3-5 years old increases. Based on the dynamic processes of the ...
Meeting Document : WG-FSA-93/18 : Auteur(s): A.N. Kozlov (Russia)
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The breeding biology and distribution of Adelie penguins: adaptations to environmental variability
Research (LTER) study of the effects of environmental variability on animal populations in the Antarctic ... of Adelie penguins in the Southern Ocean are variability in sea ice cover, ocean circulation patterns ... concluded that Adelie penguins have discrete subpopulations in the northeastern and southwestern regions of ... each is within several hundred kilometers of predictable pack ice areas in the Weddell and ...
Meeting Document : WG-EMM-96/58 : Auteur(s): Fraser, W.R., Trivelpiece, W.Z.
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Diet of grey-headed albatrosses at the Diego Ramírez Islands, Chile: ecological implications
. The squid Martialia hyadesi predominated in the diet samples in 2001 and 2002 (89% and 81% of ... suggests that M. hyadesi plays an important role in the breeding performance of grey-headed albatrosses at ... reconstituted mass), but was absent from the 2000 samples. Reconstituted mean mass per sample in 2000 was ... Abstract: The diet of grey-headed albatrosses at Diego Ramírez, Chile, was analyzed and compared ...
Meeting Document : WG-FSA-04/12 : Auteur(s): J. Arata (Chile), G. Robertson (Australia), J. Valencia (Chile), J.C. Xavier (UK) and C.A. Moreno (Chile)
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CEMP cameras and satellite transmitters installation by Ukraine at the Galindez, Petermann, and Yalour Islands penguin colonies as a part of CEMP Fund projects
Network in Subarea 48.1' and 'Tracking the overwinter habitat use of krill dependent predators ... Abstract: In the report we inform shortly on the activity in the Ukrainian Vernadsky Antarctic ... Station area on service of CEMP cameras and installation ARGOS satellite tags in penguin colonies as part ... of the CEMP projects run by USA, Argentina, Poland and Ukraine 'Establishing a CEMP Camera ...
Meeting Document : WG-EMM-17/21 : Auteur(s): G. Milinevsky, I. Dykyy, D. Lutsenko, O. Savitsky, A. Simon, M. Telipska, V. Lytvynov and L. Pshenichnov
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Estimation of the fishery–krill–predator overlap
the level of overlap in recent years (1995-98) than estimated with either the catch in the CPD or the ... small difference in the values of the Agnew-Phegan and Schroeder indices, but had little influence on ... inter-annual trends. Increasing the level of resolution of the model, and in particular the spatial ... resolution, resulted in lower overlap between the krill fishery and the krill predators, and lower values of ...
Meeting Document : WG-EMM-99/11 : Auteur(s): Secretariat