Resultados de la búsqueda
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Revised estimates of yield for Electrona carlsbergi based on a generalised version of the CCAMLR krill yield model
. Constable and W.K. de la Mare (Australia) Title: Revised estimates of yield for Electrona carlsbergi based ... can result in inappropriate high estimates of yield that could lead to depletion of stocks because of ... recent survey. These problems are addressed in this paper by using stock projections to assess the ... and its importance as prey in the Antarctic ecosystem. The decision rules for determining yield ...
Meeting Document : WG-FSA-94/21 : Autor(es): A.J. Constable and W.K. de la Mare (Australia)
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Utilising data from ecosystem monitoring for managing fisheries: development of statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program
of CEMP indices for application in CCAMLR. Author(s): W. de la Mare and A. Constable (Australia ... correlated (greater than 0.6). Criteria for inclusion of parameters in the indices are discussed when ... power of the statistical procedure adopted by WG-EMM in 1996 for identifying anomalies in CEMP ... few anomalous values have appeared in the data. An alternative procedure, using estimates of the mean ...
Meeting Document : WG-EMM-00/14 Rev. 1 : Autor(es): W. de la Mare and A. Constable (Australia)
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AGE AND GROWTH OF SPINY ICEFISH, CHAENODRACO WILSONI REGAN, 1914, OFF JOINVILLE-D'URVILLE ISLANDS (ANTARCTIC PENINSULA)
. La Mesa, A. De Felice (Italy), C.D. Jones (USA) and K.-H. Kock (Germany) Title: AGE AND GROWTH OF ... benthic trawl carried out off Joinville-D’Urville Islands (Antarctic Peninsula) in February-March 2006 and ... polishing whole otoliths embedded in epoxy resin in moulds. The precision of age estimates between readings ... maturity and a considerable short life span. The fish population of C. wilsoni caught in the studied area ...
Meeting Document : WG-FSA-08/33 : Autor(es): M. La Mesa, A. De Felice (Italy), C.D. Jones (USA) and K.-H. Kock (Germany)
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An exact time of release and recapture stock assessment model applied to Macquarie Island Patagonian toothfish (Dissostichus eleginoides)
emigration, and could not be due to fishing alone. Author(s): G. Tuck, W. de la Mare, W. Hearn, R. Williams ... estimated by incorporating a Petersen approach in a novel semi-parametric model using maximum likelihood ... released fish is assigned a length of time in the available population according to its estimated release ... abundance remaining in Aurora Trough was about 35% in the base-case model. In general, the selectivity model ...
Meeting Document : WG-FSA-00/43 : Autor(es): G. Tuck, W. de la Mare, W. Hearn, R. Williams, A. Smith, X. He and A. Constable (Australia)
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An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery (Division 58.5.2)
the entire projection period. Author(s): P. Ziegler, D. Welsford, W. de la Mare and P. Burch ... the proportion of tag-recaptures in survey catch on the main trawl ground. All model runs were ... that the virgin spawning stock biomass (SSB 0) is higher than that estimated in 2013, with an MCMC ... estimate of 136 714 tonnes (95% CI: 96 982-186 401 tonnes). Estimated SSB status in 2014 was 0.72 (95% CI ...
Meeting Document : WG-FSA-14/34 : Autor(es): P. Ziegler, D. Welsford, W. de la Mare and P. Burch (Australia)
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Some comments on the procedure for testing estimators of krill abundance which utilise survey data
performance in practice. Such studies require a simple method for computer generation of krill distribution ... encouraging improvement in fits to the distribution of inter-swarm distances observed on the 1981FIBEX survey ... by MV SA Agulhas. However, evidence of model misspecification remains. Further work is needed before ... such models can be used as the basis for the simulation studies required- some suggestions are made in ...
Meeting Document : WG-KRILL-91/21 : Autor(es): D.S. Butterworth, D.L. Borchers and D.G.M. Miller (South Africa)
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Investigating the uncertainty of age determinations for Patagonian toothfish (Dissostichus eleginoides) and the implications for stock assessment
. Author(s): P. Burch, P. Ziegler, W. de la Mare and D. Welsford (Australia) Title: Investigating the ... matrix and a lack of smoothness in the probabilities for ages above 25 years. Positive errors now ... . method and the revised Candy method were between the other two methods in terms of year to year ... for use in the HIMI assessment and we would caution others to assess its impact before applying it to ...
Meeting Document : WG-FSA-14/46 : Autor(es): P. Burch, P. Ziegler, W. de la Mare and D. Welsford (Australia)
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Otolith chemistry reveals local population structure of Antarctic toothfish (Dissostichus mawsoni) within the CCAMLR Subarea 48.6
ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Using Sr, Mg, Ba and Ca, the differences ... and economical value and that distributed in the high latitude of the Southern Ocean. The CCAMLR ... unknown in this regions, which hampered the understanding on population dynamics of this species and the ... management of toothfish fishery. The chemistry in the otolith can often be used to distinguish population ...
Meeting Document : WG-FSA-18/75 : Autor(es): L. Wei, G.P. Zhu, S. Somhlaba, X.Y. Yu and M. Duan
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The ‘CAML/SCAR-MarBIN Biogeographic Atlas of the Southern Ocean’
Abstract: The "CAML / SCAR-MarBIN Biogeographic Atlas of the Southern Ocean" Claude De ... 19 CAML-dedicated cruises in the whole Southern Ocean, and following the intense compilation efforts ... (benthos, plankton, nekton, birds and seals) south of 40°S. The hard copy version in large format will be ... extended by a dynamic online version on the SCAR-MarBIN portal. Contacts: co-chief editors: Dr Claude De ...
Meeting Document : WS-MPA-11/15 : Autor(es): C. De Broyer (Belgium) and P. Koubbi (France)
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Preliminary results of an age/length study of juvenile Notothenia rossii marmorata from Potter Cove, South Shetland Islands
Notothenia rossii marmorata specimens collected at Potter Cove, King George/25 de Mayo Island, South Shetland ... Islands. Results from the analysis of both structures agreed in 95.5%. Likewise, the examination of ... otolith cross sections of chosen specimens confirmed in all the cases the age readings obtained from the ... respectively, which is well in accord with the known length-age distribution of juvenile specimens of the ...
Meeting Document : WG-FSA-90/09 : Autor(es): E. Barrera-Oro and R. Casaux (Argentina)