Résultats de la recherche

1. Seabird mortality in the Japanese tuna longline fishery around Australia, 1988–1995

   Abstract:  Large numbers of seabirds are killed each year within the Australian Fishing Zone (AFZ ... ) by Japanese longline vessels targeting tuna. In recent years the estimated rate of seabird bycatch in ... the AFZ has been in the order of 0.15 birds 1000 hooks, translating to mortalities of 1000-3500 birds ... southern Australia. Uncertainties in the observed catch rates prevent confident assessment of trends, but ...

   Meeting Document : WG-FSA-98/31 : Auteur(s): N. Brothers, R. Gales and T. Reid (Australia)

2. CLIMATICALLY DRIVEN FLUCTUATIONS IN SOUTHERN OCEAN ECOSYSTEMS

   of how biological and physical processes interact across a wide range of scales. Here we examine the ... role of physical and biological processes in generating fluctuations in the ecosystem around South ... Georgia in the South Atlantic sector of the Southern Ocean. Anomalies in sea surface temperature (SST) in ... the South Pacific sector of the Southern Ocean have previously been shown to be generated through ...

   Meeting Document : WG-EMM-08/P02 : Auteur(s): E.J. Murphy, P.N. Trathan, J.L. Watkins, K. Reid, M.P. Meredith, J. Forcada, S.E. Thorpe, N.M. Johnston and P. Rothery

3. Linking predator and prey behaviour: contrasts between Antarctic fur seals and macaroni penguins at South Georgia

   combination of concurrent at sea (predator observations, net hauls and multi-frequency acoustics), and land ... -based (animal tracking and diet analysis) techniques, we examined variability in the foraging ecology of ... these sympatric top predators during the austral summer and autumn of 2004. Krill availability derived ... occurred in 80% of fur seal diet samples, with fish remains in 37% of samples. Penguin diets contained the ...

   Meeting Document : WG-EMM-10/P07 : Auteur(s): C.M. Waluda, M.A. Collins, A.D. Black, I.J. Staniland and P.N. Trathan

4. Krill population dynamics at South Georgia: implications for ecosystem-based fisheries management

   Abstract:  The South Georgia region supports a large biomass of krill that is subject to high ... interannual variability. The apparent lack of a locally self-maintaining krill population at South Georgia ... to successful ecosystem-based management of krill fishery in the region. Krill acoustic-density data ... from surveys conducted in the early, middle and late period of the summers of 2001 to 2005, together ...

   Meeting Document : WG-EMM-10/P08 : Auteur(s): K. Reid, J.L. Watkins, E.J. Murphy, P.N. Trathan, S. Fielding and P. Enderlein

5. A preliminary stock assessment in SSRUS 486A, G: A Bayesian and CPUE based biomass dynamic model

   contribution to estimate abundance in a simple biomass dynamic model for both species of toothfish in northern ... area of 48.6 (SSRU 48.6A, 48.6G). Antarctic and Patagonian toothfish presented a high proportion with ... sets in which both species are present, and thus, an analysis of catch intention was implemented by ... using multivariate statistical approach of the catch composition. Standardisation of CPUE was done by ...

   Meeting Document : WG-SAM-13/29 : Auteur(s): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)

6. Le prix du poisson : Étude de marché mondiale de la légine australe (Dissostichus eleginoides) et antarctique (Dissostichus mawsoni)

   Abstract:  Patagonian and Antarctic toothfish are traded internationally and considered to be of ... , are managed by the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR ... ), there are currently no methods in place to monitor the volume or value of toothfish traded in the ... analysis of import and export data records from 2007 to 2012 was conducted. The objective was to examine ...

   Meeting Document : CCAMLR-XXXIII/BG/14 Rev. 2 : Auteur(s): Secretariat

7. Using acoustic echo counting to estimate grenadier abundance in the Ross Sea (SSRU88.1I)

   index the relative abundance of grenadiers and be useful for exploring spatial distribution. Automated ... . These methods can be applied to large volumes of relatively low quality, opportunistically collected ... longline catches of grenadiers and toothfish. Single targets were most abundant within 250 m of the bottom ... at seabed depths of 700–1000 m, and revealed consistent spatial patterns, with higher numbers of ...

   Meeting Document : WG-FSA-14/62 : Auteur(s): Y. Ladroit, R.L. O’Driscoll and S. Mormede (New Zealand)

8. Krill distribution and biomass variability within Subarea 48.3 in June 1991

   Abstract:  Temporal and spatial variability of krill distribution characteristics was investigated ... aggregations occurred a s fields of small swarms whose spatial distribution characteristics (size and density ... of swarms, swarm field density, number of swarms per mile) varied considerably from tach to tack ... within each survey. The maximum horizontal extension of swarms was 120 m, although about 70% of swarms ...

   Meeting Document : WG-KRILL-93/35 : Auteur(s): S.M. Kasatkina, E.N. Tymokhin, P.P. Fedulov and K.E. Shulgovskiy (Russia)

9. Results from the New Zealand exploratory fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2 in the 2004/05 season

   season in this fishery are presented. Janas undertook 44 sets in Division 58.4.2 for a catch of 37.9 ... tonnes of D. mawsoni and 0.395 tonnes of D. eleginoides. Two sets were undertaken in Division 58.4.1 SSRU ... C for a catch of 0.372 tonnes of D. mawsoni. San Aspiring undertook 20 research sets in Division ... 58.4.1 SSRU G for a catch of 20.9 tonnes of D. mawsoni and 0.4 tonnes of D. eleginoides. The first sign ...

   Meeting Document : WG-FSA-05/62 : Auteur(s): G.J. Patchell (New Zealand)

10. The preliminary report on the survey in Subarea 48.2 in 2019

    Abstract:  The fifth year survey and observations of Dissostichus spp. in statistical subarea 48.2 ... on board of the Ukrainian vessel SIMEIZ were conducted in accordance with the recommendations of the ... Scientific Committee and Commission.  The design and timing of the fifth year of research generally ... corresponded to the 2018 season, but significant changes were noted in the CPUE of Antarctic toothfish ...

    Meeting Document : WG-SAM-2019/29 : Auteur(s): Delegation of Ukraine

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