Search results
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Response to Everson (2008)
) (Constable and de la Mare, 1996), that is used by CCAMLR in determining the precautionary catch limit ... , A. and W.K. de la Mare. 1996. A gener- alised model for evaluating yield and the long- term status of fish ... of approximately 0.5 km. Thus an analy- sis could be conducted with consensus CCAMLR data down to a 0.5 km scale ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 195–198 : Author(s): Brierley, A.S., B.G. Heywood and S.F. Gull
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Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region
(Butterworth, 2007; de Oliveira et al., 2008). SPM was used to develop spatial models of the Antarctic ... Paper Title: Spatially explicit population dynamics models for Antarctic toothfish in the Ross ... stage transition in a holistic framework. Using this software, three spatially explicit age-structured ... models were developed for the Antarctic toothfish (Dissostichus mawsoni) population in the Ross Sea ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Author(s): Mormede, S., A. Dunn, S. Hanchet and S. Parker
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Factors that may influence the accuracy of abundance estimates from CCAMLR tag-recapture programs for Dissostichus spp. and best practice for addressing bias
strate- gies. CCAMLR Science, 17: 179–195. Tuck, G.N., W.K. de la Mare, W.S. Hearn, R. Williams, A.D.M ... Factors that may InFluence the accuracy oF abundance estImates From ccamlr tag-recapture programs ... For Dissostichus spp. and best practIce For addressIng bIas D.C. Welsford and P.E. Ziegler Australian Antarctic ... programs. The methods that have been used in CCAMLR tag-recapture programs to mitigate such biases, or to ... account for their effects in stock assessments for Dissostichus spp. are also summarised. In nearly all ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Author(s): Welsford, D.C. and P.E. Ziegler
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A review of the diet and at-sea distribution of penguins breeding within the CAMLR Convention Area (submitted to the 2008 Joint CCAMLR-IWC Workshop)
). This procedure is often repeated for a fixed number of times or until only clear water is returned, de- pending ... in an ecologically sensitive manner demands that catches do not depress stocks within the foraging ... . These models require information on the number of predators in a population, their nutritional demands ... , their diet composition and their seasonal distribution in the marine environment. This paper reviews all ... published information on the diet and at-sea distribution of the six penguin species that breed in the CAMLR ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Author(s): Ratcliffe, N. and P. Trathan
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Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning
and ecosystem characteristics, existing human activi- ties, conservation measures and management areas ... Possi- bilities. Brest, France: Agence des aires marines protégées, Gland, Switzerland, Washington, DC ... Subantarctic FrontN um be r o f fi ne -s ca le re ct an gl es (a) 0 50 100 150 200 250 300 48.1 ... 48.2 48.3 48.4 N um be r o f f in e sc al e re ct an gl es (B) N um be r o f fi ne -s ca le ... between habitat (bioregion), existing spatial management and Antarctic krill catch in the Southern Ocean ... important differences between pelagic bioregions in terms of the fraction that was open to fishing, and the ... has ever been fished, and this fishing is concentrated in three of the seven bioregions found in the ... be used to prioritise protection for bioregions that are currently under-represented in marine ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Author(s): Grant, S.M., S.L. Hill and P.T. Fretwell
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Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates
Paper Title: Quantifying vessel performance in the CCAMLR tagging program: spatially and ... tagging program is critical to the successful management of a number of toothfish fisheries in Antarctica ... . In particular, tag-detection rates are directly linked to stock size estimated from the tag data in ... an integrated stock assessment. Previous attempts to assess the relative reliability of vessels in ... In CCAMLR Subareas 88.1 and 88.2, tag- release and -recapture data are used in an integrated age ... yields (Mormede et al., 2011a, 2011b; Mormede, 2011). In those analyses, the assumed values of ... parameters. For example, under- estimating the tag-detection rate of the fleet will result in an ... that there may be impor- tant differences between vessels in their respective detection rates of ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Author(s): Mormede, S. and A. Dunn
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Reproduction of the mackerel icefish (Champsocephalus gunnari) and its implications for fisheries management in the Atlantic sector of the Southern Ocean
for fisheries management in the Atlantic sector of the Southern Ocean Abstract / Description ... been reviewed and discussed in the light of existing conservation measures. Length at first spawning is ... Islands and in the South Shetland Islands/Antarctic Peninsula region. Around South Georgia spawning takes ... probably occurs in June/July. Around South Georgia males start their spawning migration earlier than ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 51–68 : Author(s): Kock, K.-H.
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Some aspects of the relation between Antarctic krill abundance and CPUE measures in the Japanese krill fishery
Paper Title: Some aspects of the relation between Antarctic krill abundance and CPUE measures in ... limitations on the vessels, and product quality considerations- in particular the increasing tendency to avoid ... catching “green” krill. These factors result in Catch-per-Day and Catch-per-Haul measures being unlikely to ... -swarm density. Search time data may be needed to assess the density of swarms in a concentration, but ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 109–125 : Author(s): Butterworth, D.S.
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Hydrological conditions and characteristics of icefish (Channichthyidae) distribution on the South Georgia shelf in 1986/87
) distribution on the South Georgia shelf in 1986/87 Abstract / Description: Some characteristics of spatial and ... temporal variability of the distribution of icefish (Channichthyidae) on the South Georgia shelf in ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 3–14 : Author(s): Shnar, V.N. and V.I. Shlibanov
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1989/90 stock status and TAC assessment for Champsocephalus gunnari in Subarea 48.3 (South Georgia)
Paper Title: 1989/90 stock status and TAC assessment for Champsocephalus gunnari in Subarea 48.3 ... gunnari in South Georgia Subarea (48.3) has been made using the biostatistic material for 1982/83 to 1987 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 15–27 : Author(s): Frolkina, Zh.A. and P. Gasyukov