Résultats de la recherche

1. Variability in krill length distribution in 48.1 derived from data collected by scientific observers

   Abstract:  Information on the length distribution of krill in the catch, and the spatial and ... temporal patterns of krill length in the population is essential to assess krill population status and ... generalised additive mixed models (GAMM) to evaluate the spatial and temporal patterns of length in Antarctic ... krill (Euphausia superba) in CCAMLR Subarea 48.1 derived from data collected by scientific observers ...

   Meeting Document : WG-EMM-15/16 : Auteur(s): P. Ziegler, S. Kawaguchi D. Welsford and A. Constable (Australia)

2. Mitigation of Macrourus by-catch in research block 58.4.1_6 and estimation of Macrourus biomass and sustainable catch in Divisions 58.4.1 and 58.4.2

   Abstract:  Macrourus spp. are the major by-catch species in the exploratory toothfish fishery in ... exploratory fishing for D. mawsoni on Macrourus spp. in Division 58.4.1 and 58.4.2 in general and in research ... block 58.4.1_6 in particular. We investigate the distribution of D. mawsoni and Macrourus spp. catch ... rates in research block 58.4.1_6, and conclude that the current research grid includes fishing locations ...

   Meeting Document : WG-FSA-17/23 : Auteur(s): D. Maschette, P. Burch, P. Yates and P. Ziegler

3. The results of investigations of the feeding of Antarctic toothfish D. mawsoni in the Ross Sea in 2005/06

   December to March during the two fishery seasons (2004-2005 and 2005-2006) in different fishing areas of ... the Ross Sea located between 67°S to 76°S. 192 longline settings were made. In total, over two seasons ... 3000 stomachs (1913 stomachs in 2005 and 1087 ones in 2006) were analyzed. In 2005 fish was caught at ... to 123 kg. In 2006 Antarctic toothfish was caught at depths of 478-1702 m and its TL ranged from 49 ...

   Meeting Document : WG-FSA-06/17 : Auteur(s): A.F. Petrov (Russia)

4. Krill population dynamics in the Scotia Sea: variability in growth and mortality within a single population

   by regional differences in the 11 processes that govern population structure. The influence of ... regional differences in growth and mortality on population size 12 structure was examined using data on the ... length–frequency distribution of krill in the Scotia Sea using samples from the South 13 Shetland Islands ... the 14 higher growth rate at South Georgia, produced a consistent similarity in the position of the ...

   Meeting Document : WG-EMM-02/16 : Auteur(s): K. Reid, E.J. Murphy (United Kingdom), V. Loeb and R.P. Hewitt (USA)

5. IMPLEMENTATION OF FOOSA (KPFM) IN THE EPOC MODELLING FRAMEWORK TO FACILITATE VALIDATION AND POSSIBLE EXTENSION OF MODELS USED IN EVALUATING KRILL FISHERY HARVEST STRATEGIES THAT WILL MINIMISE RISK OF LOCALISED IMPACTS ON KRILL PREDATORS

   shows how the parameters developed for use in FOOSA can be adapted for use in EPOC. The paper has three ... needs to be implemented and a description of the implementation of FOOSA in EPOC. The latter section ... predators, the krill fishery and the system for setting catch limits. The process of implementing FOOSA in ... EPOC has been a useful opportunity to consider the functions needed to represent different processes in ...

   Meeting Document : WG-SAM-08/15 : Auteur(s): A. Constable (Australia)

6. State of the Antarctic krill (Euphausia superba Dana) resources in the Sodruzhestva Sea area (Statistical Divisions 58.4.2 and 58.4.3) in 1988 to 1990

   Abstract:  Interannual variations in krill quantative characteristics in the Sodruzhestva Sea area ... for the period from 1988 to 1990 are discussed in this paper. It has been established, that a ... considerable increase in the crustacea stock in 1990 was caused by good replenishment owing to the generations ... of 1986 and 1987 in the conditions of their weak expatriation in 1989–1990. Author(s):  V.A. Bibik ...

   Meeting Document : WG-KRILL-92/05 : Auteur(s): V.A. Bibik and V.N. Yakovlev (Russia)

7. Revised research plan for toothfish in Division 58.4.4 a & b by Shinsei maru No. 3 in 2013/14

   Abstract:  We revised stock status assessments of D. eleginoides in SSRUs C and D using ... . Detailed results using CASAL models in SSRU C are described in a separated document. The catch and tagging ... data in SSRU D were not enough to be applied to modified Lincoln-Petersen and CASAL models. Thus the ... stock sizes of D. eleginoides in SSRU D is estimated only by using CPUE comparison with the stock size ...

   Meeting Document : WG-FSA-13/36 : Auteur(s): Delegation of Japan

8. Review of the efficacy of the early season extension in the Patagonian toothfish fishery in Subarea 48.3 and proposal for further season extension

   Abstract:  In 2009 CCAMLR agreed to incrementally and conditionally bring forward the start date ... of the Patagonian toothfish fishery in sub-Area 48.3. This allowed vessels that had been 100 ... % compliant with CM 25-01 in the previous season to start 5-days early in 2010 (April 26th) and a further 5 ... days early in 2011 (April 20th). In 2011, following the success of the initial trial, CCAMLR agreed to ...

   Meeting Document : WG-FSA-13/32 : Auteur(s): M.A. Collins and K. Ross (United Kingdom)

9. Reproductive analysis of Dissostichus mawsoni in SSRU 5841C-a for the exploratory longline fishery in 2012/13 of Korea

   Abstract:  In the Division 58.4.1 there are two stocks of Dissostichus mawsoni, which is ... vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1. However, there is not enough data to ... analyze the reproductive ecology of Dissostichus mawsoni in SSRU 58.4.1C-a based on the histological ... methods as a part of Korean research plan for Dissostichus spp. in SSRUs 58.4.1 C and E during 2012/2013 ...

   Meeting Document : WG-SAM-13/27 : Auteur(s): I.J. Yeon, J.S. Lee, Y.J. Kwon, M.A. Jeon, S.K. Choi, K.J. Seok, D.W. Lee, K.Y. Ku and H.J. Kim (Republic of Korea)

10. Investigation of potential biases in the assessment of Antarctic toothfish in the Ross Sea fishery using outputs from a spatially explicit operating model

    . Conceptually this assumption implies either that tagged and untagged fish mix equally in the population, or ... that fishing effort for recaptures is distributed in proportion to the underlying abundance. Neither of ... these conditions are likely to occur in practice, and violation of this assumption may lead to bias. In ... this paper we investigate such potential biases in the assessment of Antarctic toothfish in the Ross ...

    Meeting Document : WG-SAM-13/36 : Auteur(s): S. Mormede and A. Dunn (New Zealand)

Pages