Résultats de la recherche
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Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)
participation in the fishery, with only some Small-scale Research Units (SSRUs, consisting of 10° longitude ... there are two stocks in the area, one in Division 58.4.1 and one in Division 58.4.2, with the division ... with the Ross Sea, where an analytical assessment has been possible for several years, and through ... (only five where time at liberty was a year or more). These recaptures were inconsistent with ... pre-processed by New Zealand scientists to eliminate errors in the dataset. Although only ... registered to seven CCAMLR Members (Australia, Chile, Republic of Korea, Namibia, New Zealand, Spain and ... prerequisite for participation in the fishery, with only some Small-scale Research Units (SSRUs, consisting ... 58.4.2, with the division between them being at about 90°E. The western stock may be centred around ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Auteur(s): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán
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Biomass, abundance and distribution of fish in the Kerguelen Islands EEZ (CCAMLR Statistical Division 58.5.1)
Division 58.5.1). The swept-area method was used in the depth range from 100 to 1 000 m with 207 random ... ; the data on the latter are new. Data on the geographic and bathymetric distribution of the species ... ) but, with no recent surveys avail- able, the urgent need to produce new estimates to improve the ... method was used in the depth range from 100 to 1 000 m with 207 random stratified stations. Estimates of ... on the latter are new. Data on the geographic and bathymetric distribution of the species provide ... Plateau with a shelf occupying a large part of the zone. The shelf of the Heard and McDonald Islands ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 1–32 : Auteur(s): Duhamel, G. and M. Hautecoeur
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Modelling and decision making as part of the CCAMLR management regime
environment essential for the effective management of the Antarctic marine ecosystem within the requirements ... development of suitable simulations of important Antarctic marine ecosystem interactions and to facilitate the ... prise de decisions a objectifs multiples necessaire aI' amenagement efficace de l' ecosysteme marin de ... interactions importantes de l'ecosysteme marin de l'Antarctique et pour faciliter la formulation d'un ... isolated component of the system). As is the case with many other system models currently available ... used less or to have been less useful in the decision-making process associated with managing ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 295-322 : Auteur(s): Miller, D.G.M.
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Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates
Kilbirnie, Wellington 6241 New Zealand Email – sophie.mormede@niwa.co.nz Abstract A reliable commercial ... thank the members of the New Zealand Antarctic Fisher- ies Stock Assessment Working Group for helpful ... funded by the New Zealand Ministry of Fisheries under project ANT2011/01. references Agnew, D.J., G.P ... rates, and therefore, including observations from vessels with low detection rates, could lead to an ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Auteur(s): Mormede, S. and A. Dunn
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Low genetic diversity and temporal stability in the Antarctic toothfish (Dissostichus mawsoni) from near-continental seas of Antarctica
one genetic stock with gene flow via the Antarctic Circumpolar Current or two or more stocks ... divided into three stages, with each stage being restricted to a particular depth. In the first (shelf ... ) stage, young fish (age 0+ and 1+), with total length between 41 and 117 mm, are found during spring ... , Vol. 21 (2014): 1–9 1 Low genetIc dIversIty and temporaL stabILIty In the antarctIc toothfIsh ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 1–9 : Auteur(s): Mugue, N.S., A.F. Petrov, D.A. Zelenina, I.I. Gordeev and A.A. Sergeev
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Archival and satellite-linked data recorders
provides an overview of currently-available data recorders for use in research on marine animals. These ... animal of interest and subsequently recovered together with the stored data, and Satellite-linked ... investigated 24 hours a day for periods of days to months with little or no intervention on the part of the ... performed. The instrument provides continuous data recording for approximately 11 days with a time of ... animal is hauled out onto a beach or ice-floe. The instruments can also be equipped with a' temperature ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 475-493 : Auteur(s): Hill, R.D.
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Beyond MSY: a consideration of definitions of management objectives
Article II of the CCAMLR Convention. The criteria will depend on whether the main concern is with ... recruitment or growth overfishing. Account also needs to be taken of the uncertainties associated with any ... (perhaps 50% compared with 99.999% or more for fish) recruitment - 308 - among marine mammals is more ... Convention. The criteria will depend on whether the main concern is with recruitment or growth overfishing ... . Account also needs to be taken of the uncertainties associated with any assessment. Suggestions are made ... offered. One with considerable practical implications is contained in the Convention for the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Auteur(s): Gulland, J.A.
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Status of the FIBEX acoustic data from the West Atlantic
survey) with data collected at 120 kHz (all other vessels), it is concluded that this does not materially ... are consistent with the other surveys. The authors can find no explanation for this difference. File ... absence of new experimental information and in order to be consistent with the methods used for the rest ... factor due to the combination of data collected at 50 kHz (Walther Herwig survey) with data collected ... biomass. The data from the Professor Siedlecki survey do not provide estimates that are consistent with ... ). In fulfilling this request, Trathan e t al. (1992) used new TS estimates derived from Greene et a ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 35–48 : Auteur(s): Trathan, P.N. and I. Everson
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A preliminary investigation of the possible effects of rhizocephalan parasitism on the management of the crab fishery around South Georgia
spinosissima, which has been harvested by a new fishery around South Georgia (Subarea 48.3) since 1992. One of ... contrasted with the effects of harvesting healthy animals only. Equilibrium and transition dynamics of the ... crab Paralomis spinosissima, which has been harvested by a new fishery around South Georgia (Subarea ... healthy and infected animals are contrasted with the effects of harvesting healthy animals only ... with increasing fishing mortality. This generally includes the very important assumption that both ... parasite in this fishery, and the model is therefore necessarily simple with many assumptions. The ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 175–192 : Auteur(s): Basson, M
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Sensitivity investigation of the SDWBA Antarctic krill target strength model to fatness, material contrast and orientation
marine organisms. A stochastic version, the so-called SDWBA model, is endorsed by CCAMLR to predict the ... the new SDWBApack age2010 was evaluated using sensitivity tests of some parameters with regard to ... object and the surround- ing medium. For weak scatterers with complex shapes, such as zooplankton ... . Exact solutions can be achieved with analytical restrictions but at the cost of a limited range of ... an image shot with the ani- mal projected in lateral aspect. The authors found a good fit between ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 97–122 : Auteur(s): Calise, L. and G. Skaret