Résultats de la recherche
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Measures to avoid bias in abundance estimates of Dissostichus spp. based on tag-recapture data
Abstract: Using the simplest form of an abundance estimator using tag-recapture data, the Lincoln ... difficulty in accurately estimating key parameters, and consequently introduce bias into an abundance ... against this bias, or to account for their effects in assessment models. In nearly all cases, examples of ... depredation rates are a priority for new tagging programs and tag-based assessments. Due to the complexity of ...
Meeting Document : WG-SAM-12/23 : Auteur(s): D.C. Welsford and P.E. Ziegler (Australia)
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CCAMLR conservation measures: alternative approaches for fishery measures
CCAMLR conservation measures: alternative approaches for fishery measures ...
Meeting Document : CCAMLR-XX/20 Rev. 1 : Auteur(s): Secretariat
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On assessing the size of the humped rockcod stock (Notothenia gibberifrons) in Subarea 48.3
Abstract: An adaptive approach was used to assess the Notothenia gibberifrons stock in Area 48.3 ... imperative to estimate the catchability coefficient. This parameter was equal to 0.326 to 0.635. An adaptive ... logarithms of observed and calculated biomass indices and resulted in an estimate of from 21.5 to 42.1 ... thousand tonnes for N. gibberifrons biomass in the 1989/90 season. It is thus possible to suggest a TAC of ...
Meeting Document : WG-FSA-91/26 : Auteur(s): P.S. Gasiukov (USSR)
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Foraging areas of black-browed and grey-headed albatrosses breeding on Macquarie Island in relation to marine protected areas
34 % of their time foraging in MPAs. 4. Black-browed and grey-headed albatrosses spent 30 % and 15 ... for 5% and 12% of the total foraging time respectively. 6. There was significant spatial overlap in ... breeding on the Island. 3. During late incubation and brood periods over 90% of time spent foraging by ... Exclusion Zone around Macquarie Island. In contrast, grey-headed albatrosses (T. chrysostoma) spent on only ...
Meeting Document : WG-FSA-04/49 : Auteur(s): A. Terauds, R. Gales, G.B. Baker and R. Alderman (Australia)
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Educational observer on board fishing vessels in Brazil
Abstract: We inquired several social aspects of two Brazilian crews working in pelagic longline ... greatly reduced if level of awareness is increased through environmental education for it increases the ... while on board. We believe seabird mortality rate due to incidental capture by fishing vessels can be ... /obligation on the usage of these measures is in force. Author(s): Delegation of Brazil Title: Educational ...
Meeting Document : SC-CAMLR-XXV/BG/20 : Auteur(s): Delegation of Brazil
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Further calculations of the effects of krill fishing on predators
resilience of the albatross population to the effects of a krill fishery. An approach for estimating the ... random component in the relationship between krill biomass and availability. An examination of the ... provided by WG-CEMP members for the blackbrowed albatross and Antarctic fur seal. Attempts are made to ... investigated. Results in those regards are not too encouraging. Estimates of the functional relationships for ...
Meeting Document : WG-Krill-94/24 : Auteur(s): D.S. Butterworth and R.B. Thomson (South Africa)
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On cooperation with UNEP (copies of correspondence)
Author(s): Secretariat Title: On cooperation with UNEP (copies of correspondence) Approval ...
Meeting Document : SC-CAMLR-XVIII/BG/20 : Auteur(s): Secretariat
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Invitation to the Second CCAMLR Technical Workshop on the Development of MPAs in Domain 1
Workshop on the Development of MPAs in Domain 1 Approval: Approved ...
Meeting Document : SC-CAMLR-XXXIII/BG/20 : Auteur(s): Delegations of Argentina and Chile
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SO-AntEco: Contributing information and scientific advice on benthic biodiversity in the South Orkney Islands (Domain 1) region
with an international team of scientists from the Scientific Committee for Antarctic Research (SCAR ... will contribute to an updated MPA Report for the South Orkney Islands, as well as the SOISS MPA review ... deposit feeders. Substantial differences in the abundance of VME taxa were found between two sampling ... more suitable for VME assessments than the Agassiz trawl, but where possible, trawling is advisable for ...
Meeting Document : WG-EMM-17/37 : Auteur(s): M.J. Brasier, S.M. Grant, P.N. Trathan, L. Allcock, O.S. Ashford, H. Blagbrough, A. Brandt, B. Danis, R. Downey, M. Eléaume, P. Enderlein, C. Ghiglione, O. Hogg, K. Linse, M. Mackenzie, C. Moreau, L. Robinson, E. Rodríguez, V. Spiridonov, A. Tate, M. Taylor, C. Waller, H. Wiklund and H.J. Griffiths
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
for two species of seabird. This was the first submission from this site. Marine mammal entanglement ... Database contains data from 13 sites, most within Area 48. There are 4 active sites that have data for more ... (2006) clearly prohibits vessels to use packaging bands to secure bait boxes and restricts their use for ... associated with seabird colonies. Data were received from Palmer Station, Anvers Island for the 2007 season ...
Meeting Document : SC-CAMLR-XXVI/BG/10 : Auteur(s): Secretariat