Résultats de la recherche

1. Modelling catch and effort data using generalised linear models with random cruise and stratum-by-year effects: trawl fishery for Dissostichus eleginoides in CAMLR Area 58.5.2

   Abstract:  A set of procedures for modelling catch and effort data using generalized linear mixed ... strata by incorporating ‘Stratum’ as a fixed effect term and the Stratum-by-Year interaction (S x Y) as a ... considering the S x Y term as random. A random S x Y term avoids the difficulty in calculating an overall ... when the S x Y term is included in the GLMM as a fixed effect. Defining an areal extent of each stratum ...

   Meeting Document : WG-FSA-03/34 : Auteur(s): S.G. Candy (Australia)

2. Recommendation for an explicit limit reference point for the mackerel icefish (Champsocephalus gunnari) fishery in CCAMLR Statistical Division 58.5.2

   Abstract:  Large fluctuations in abundance are a persistent feature of the populations of mackerel ... theoretically allow some commercial fishing to occur on icefish stocks when stock biomass is at a low level ... . Australia recommends the development of a limit reference point, such that the commercial catch limit for ... limit recommended by the decision rules is below 100 tonnes in the first year after a survey has been ...

   Meeting Document : WG-FSA-11/34 : Auteur(s): Delegation of Australia

3. New Antarctic deep-sea weird leech (Hirudinida: Piscicolidae): morphological features and phylogenetic relationships

   Abstract:  A new fish leech Ambulobdella shandikovi n. g., n. sp. (Hirudinida: Piscicolidae), a ... earlike edges and an inner membrane around the mouthpore, well-developed musculature and a unique ... attributed, in part, to temporary associations of A. shandikovi n. sp. with its fish hosts and a need for ... well developed sensory and locomotory organs. A certain locomotory function of ventrolateral tubercles ...

   Meeting Document : WG-FSA-18/P01 : Auteur(s): A. Utevsky and S. Utevsky

4. Bias in acoustic biomass estimates of Euphausia superba Dana to diel vertical migration

   results of qualitative and quantitative hydroacoustic surveys which are conducted with a down-looking ... estimates of biomass distribution and abundance, a time-depth-density analysis was performed. Data for this ... covered a 105 by 105 n.mile study area centered on Elephant Island; the second and third surveys covered a ... 60 by 35 n.mile area immediately north of Elephant Island; the fifth survey covered a 1 n.mi.2 area ...

   Meeting Document : WG-KRILL-93/48 : Auteur(s): D.A. Demer and R.P. Hewitt (USA)

5. Bioregionalisation: some key questions and considerations

   Abstract:  Bioregionalisation is a process to classify data on a range of environmental ... , biological and ecological attributes, resulting in a spatial framework that can be used as a planning tool ... must address a range of technical questions relating to the development and use of appropriate methods ... relating to the context, focus and products of a bioregionalisation analysis. Author(s):  S. Grant, A ...

   Meeting Document : WS-BSO-07/11 : Auteur(s): S. Grant, A. Clarke, P.N. Trathan and H.J. Griffiths (UK)

6. Preliminary results of pop-up satellite tag study on Antarctic toothfish in the Mawson Sea

   Abstract:  Preliminary results of a pop-up satellite tag (PSAT) on large Antarctic toothfish are ... described in this report. The toothfish was caught in the Mawson Sea in Feb 2015 and released with a PSAT by ... a Korean scientific observer. The same observer recovered the fish a year later. The days of liberty ... were over a year (366 days). The vertical movement of the fish shows strong and contrasting patterns ...

   Meeting Document : WG-FSA-16/08 : Auteur(s): Delegation of the Republic of Korea

7. Research concept on catchability to study toothfish abundance/stocks in the Antarctic marine areas

   CPUE data. But calculation of toothfish abundance with using these methods demands a number of ... present a method approach concerning possible use of a bottom trawl survey to estimate a minimum ... guaranteed toothfish abundance value on a designated marine area. This provide a valuable reference data ... , which can be used to assess a direct indicative catchability of longlines. Author(s):  K. Demianenko, L ...

   Meeting Document : WG-SAM-18/19 : Auteur(s): K. Demianenko, L. Pshenichnov, O. Diripasko and V. Gurianov

8. Future work of the Working Group on Ecosystem Monitoring and Management and implications for the format of its meetings

   is provided by a yield model,which assumes a freely distributed krill population, homogeneously ... the information necessary to implement amore robust ecosystem approach to management. A strategic plan ... progresshas been made on a number of contributing initiatives. WG-EMM currently considers awide range of ... information in order to derive a qualitative description of the status of theecosystem and appropriate ...

   Meeting Document : SC-CAMLR-XIX/06 : Auteur(s): Convener WG-EMM

9. Modelling the consequences of Antarctic krill harvesting of Antarctic fur seals

   ). A single species yield model is currently being used by the CCAMLR Scientific Committee to recommend ... an annual krill catch limit, which is expressed as a proportion (??= 0.116) of a survey biomass ... estimate. This approach takes the needs of predators into account in only a crude way by assuming that a ... predators. A krill-predator modeling procedure is presented that could be used to directly assess the impact ...

   Meeting Document : WG-EMM-01/66 : Auteur(s): R.B. Thomson, D.S. Butterworth (South Africa), I.L. Boyd and J.P. Croxall (United Kingdom)

10. The Patagonian toothfish: biology, ecology and fishery

    Abstract:  Patagonian toothfish (Dissostichus eleginoides) is a large notothenioid fish that ... toothfish are a long-lived species (> 40 years), which initially grow rapidly on the shallow shelf areas ... , biochemistry, parasite fauna and tagging indicate a high degree of isolation between populations in the Indian ... . 1000 m) during the austral winter, producing pelagic eggs and larvae. Larvae switch to a demersal ...

    Meeting Document : WG-FSA-10/P05 : Auteur(s): M.A. Collins, P. Brickle, J. Brown and M. Belchier

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