Resultados de la búsqueda
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PROPUESTA PARA REALIZAR UNA PROSPECCIÓN PATROCINADA POR LA CCRVMA CON EL FIN DE EFECTUAR UN SEGUIMIENTO DE LA ABUNDANCIA DE PRE-RECLUTAS DE LA AUSTROMERLUZA ANTÁRTICA EN EL SUR DEL MAR DE ROSS
areas on the distribution, abundance and demography of Antarctic toothfish (D. mawsoni) has led to an ... estimate of the fisheries potential yield. However, one source of ongoing uncertainty in the stock ... that a time series of recruitments from a well designed longline survey could be a useful input into a ... establish the feasibility of developing a time series of longline surveys to monitor pre-recruit (<100 cm ...
Meeting Document : SC-CAMLR-XXX/07 : Autor(es): Delegation of New Zealand
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–11
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... reference model using the selected trips tag data gave a similar, but slightly higher estimate of initial ... biomass than the 2009 base case. Retrospective analysis suggests that this is partly as a result of the ... increased number of vessels in selected data set and partly as a result of the 2010 and 2011 observations ...
Meeting Document : WG-FSA-11/42 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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OPERATIONAL DIFFICULTIES IN IMPLEMENTING THE CCAMLR TAGGING PROTOCOL IN DIVISION 58.4.1 IN 2007/08
a high mortality rate of fish on these lines; only fish with a high chance of survival were tagged ... closed on 30 January 2008). • The vessel caught a total of 9.757 t of Dissostichus mawsoni in Division ... of 3 fish tagged per tonne of green weight caught required in Conservation Measure 41-11(2007). The ... tag fish in excess of the required rate when the opportunity arose: • in Division 58.4.3a the vessel ...
Meeting Document : WG-FSA-08/16 : Autor(es): A.T. Lozano and O. Pin (Uruguay)
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Temporal variability in Adélie penguin CEMP parameters and their response to changes in prey availability
Abstract: We examined the within- and between- year fluctuations of four Adélie penguin ... heavy fledglings or poor breeding success with light fledglings while others had a lack of concordance ... the duration of early and late stage foraging trips. For example, low breeding success was recorded in ... period and heavy fledglings. These results may indicate changes in the relative level of resource ...
Meeting Document : WG-EMM-12/22 : Autor(es): L. Emmerson and C. Southwell (Australia)
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Temporal variability in Adélie penguin CEMP parameters and their response to changes in prey availability
Abstract: We examined the within- and between- year fluctuations of four Adélie penguin ... heavy fledglings or poor breeding success with light fledglings while others had a lack of concordance ... the duration of early and late stage foraging trips. For example, low breeding success was recorded in ... period and heavy fledglings. These results may indicate changes in the relative level of resource ...
Meeting Document : WG-EMM-12/48 : Autor(es): L. Emmerson and C. Southwell (Australia)
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Decadal trends in the South Georgia demersal fish assemblage
on the Shag Rocks and South Georgia Shelf region between 1986 and 2013. Consistent hotspots of fish ... years accounting for 97% of total demersal fish biomass. The relative abundance of these species was ... not uniform between strata. Trends in SSB for the five most abundant species of the South Georgia ... shelf show no consistent trends between species. There is evidence of increasing biomass in the marbled ...
Meeting Document : WG-FSA-13/26 : Autor(es): M. Belchier (United Kingdom)
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.3a
improve the estimation of current biomass. An update of the assessment of Dissostichus eleginoides using a ... abundance for D.eleginoides, averaged over all available estimates is 403 tons. Application of the harvest ... rate applied to D. eleginoides in Subarea 48.4 (γ = 0.038) gives yields of 15 tons. But biomass ... ). CASAL and Petersen estimates were based on tags released and recaptured only in the western part of Elan ...
Meeting Document : WG-SAM-14/17 : Autor(es): Delegation of France
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Estimating future krill catches that meet the CCAMLR and alternative decision rules for FAO Subarea 48.1 using an integrated assessment model
estimate the effects of the fishery on the krill population. The model estimates parameters representing ... then applies these parameter values to future projections (2015-2034) at pre-specified levels of future ... the CCAMLR decision rules. An alternative pair of decision rules to those currently employed by CCAMLR ... spawning biomass instead of to projections with no fishing. Catch levels that meet the various decision ...
Meeting Document : WG-EMM-15/51 Rev. 1 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss (USA)
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The toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2016/17
plan since the 2015 fishing season. The aim of the research plan is to collect sufficient information ... to carry out a reliable stock assessment of the toothfish stock in that area. In this report, we ... precautionary. In the 2016 and 2017 seasons, a total of 19 tagged fish (excluding within season recaptures) were ... recaptured in the research blocks in the South Amundsen Sea region, confirming the utility of the research ...
Meeting Document : WG-FSA-17/39 : Autor(es): S. Parker and S. Mormede
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New Zealand research voyages to the Ross Sea region in 2018 and 2019
Abstract: This paper provides a summary of research carried out during New Zealand’s 2018 voyage ... to the Ross Sea region, and gives notice of a New Zealand 2019 research voyage to the Ross Sea region ... monitor outflow of Antarctic Bottom Water at the continental shelf-break in the Cape Adare region; (2 ... ) surveys of seabed habitats and fauna at previously un-surveyed sites on Iselin Bank, Scott C seamount, and ...
Meeting Document : WG-EMM-18/02 : Autor(es): D. Bowden, R. O’Driscoll and M.H. Pinkerton