Résultats de la recherche

1. Modelling the predator–prey interactions of krill, baleen whales and seals in the Antarctic ecosystem

   Abstract:  The history of human harvests of seals, whales, fish and krill in the Antarctic is ... krill surplus in the mid 20th Century is described, and the information on population and trend levels ... ) species. The model commences in 1780 (the onset of fur seal harvests) and distinguishes the Atlantic ... /Indian and Pacific sectors in view of the much larger past harvests in former. A reference case and five ...

   Meeting Document : WG-EMM-05/34 : Auteur(s): M. Mori and D.S. Butterworth (South Africa)

2. A RISK ASSESSMENT TO ADVISE ON STRATEGIES FOR SUBDIVIDING A PRECAUTIONARY CATCH LIMIT AMONG SMALL-SCALE MANAGEMENT UNITS DURING STAGE 1 OF THE STAGED DEVELOPMENT OF THE KRILL FISHERY IN SUBAREAS 48.1, 48.2, AND 48.3.

   the precautionary krill catch limit among SSMUs in Area 48. Our methodological approach follows ... directly from specifications made by the WG-SAM and the WG-EMM. We predict that the tradeoffs inherent in ... operate in pelagic SSMUs. Up to harvest rates of 0.5 x γ, this subdivision is unlikely to reduce predator ... populations to 75% or less of the abundances that might occur in the absence of fishing; the risks of such ...

   Meeting Document : WG-EMM-08/30 : Auteur(s): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)

3. A REVIEW OF THE METHODS USED TO RELEASE SKATES (RAJIIDS), WITH OR WITHOUT TAGS, IN ANTARCTIC EXPLORATORY FISHERIES

   seasons in preparation for the ‘Year of the Skate’ prior to a final decision on skate release protocols. A ... fishing vessels in the Ross Sea (CCAMLR Subareas 88.1 and 88.2) in 1999/2000. Based on preliminary results ... Scientific Committee gave approval in 2004 for licensed vessels to cut live skates from the line (while in ... implemented was that some form of in-water release would be the ideal to improve survival chances ...

   Meeting Document : WG-FSA-08/30 : Auteur(s): J.M. Fenaughty (New Zealand)

4. Zonal structure of zooplankton communities in the Southern Ocean south of Australia: results from a 2150 km continuous plankton recorder transect

   Circumpolar Current (SACCF), in addition to the Southern Boundary (SB) of the ACC. From 25 February to 3 March ... were measured at 1-min intervals in conjunction with CPR samples. Additional physical data for the ... combination of zonal differences in water mass structure, phytoplankton regimes, and small scale intra-zonal ... differed from other sectors of the Southern Ocean in that the northern PF, equivalent to the PF in other ...

   Meeting Document : WS-BSO-07/P6 : Auteur(s): Hunt, B.P.V. and G. Hosie

5. DATA QUALITY ASSESSMENT IN CCAMLR: REQUIREMENTS FOR MINIMUM INTEGRITY TESTING TO ENSURE THAT DATA ARE FIT FOR PURPOSE

   confirmation of their validity. In the context of CCAMLR, data may undergo one set of quality testing in order ... important for prioritizing the work of the Secretariat in data quality assessment, and also in ensuring that ... errors and discrepancies are resolved in consultation with data owners/originators and, where possible ... errors in fishery data which originated at the vessel-level, and indicated that some errors were not ...

   Meeting Document : WG-SAM-09/05 : Auteur(s): Secretariat

6. Assessments of by-catch in trawl fisheries at Heard and MacDonald Islands

   caught as by-catch in the commercial trawl fisheries in the Heard Island area (Statistical SubArea 58.5.2 ... the spawning biomass of these stocks in the longer term. The long-term annual yield for each of the ... data obtained from the region in 1990-1993. Values for missing input parameters were obtained from the ... literature. The second part of the analysis examined the amount of each species caught in the commercial ...

   Meeting Document : WG-FSA-97/30 : Auteur(s): de la Mare, W.K., Williams, R., Constable, A.

7. The brief review of the AtlantNIRO’s investigations of living marine resources: whales, krill and fish, in the Atlantic sector of the Antarctic

   Abstract:  The USSR has fished in the Atlantic Sector of the Antarctic for three living marine ... resources: whales, krill and fish. In order to provide the fisheries with rational database the AtlantNIRO ... vessels conducted fishery and scientific studies. Investigations on whales were commenced in 1960. There ... , pigmy blue whales, southern baleen whales, physiological structure of the females share in the ...

   Meeting Document : WG-EMM-04/30 : Auteur(s): F. Litvinov, D. Tormosov, Zh. Frolkina (Russia)

8. Brief information on the results of the bottom trawl and trawl–acoustic surveys carried out by STM Atlantida in the South Georgia subarea (48.3) during January to March 2002

   Abstract:  The results of researches carried out in expeditions of S?? “?tlantida” in summer ... -autumn period of the southern hemisphere from 30 January to 14 March 2002 are presented. These researches ... included the bottom trawl survey on the shelf of South Georgia, Shag Rocks and Black Rocks (53?10-55?30 S ... Georgia shelf (53?10- 55?30 S, 34?00-39?40 W); series of oceanographic observations. Author(s):  V.N ...

   Meeting Document : WG-FSA-02/19 : Auteur(s): V.N. Shnar, V.A. Khvichia and A.P. Malyshko (Russia)

9. Winter gut contents of the Antarctic krill (Euphausia superba Dana) collected in the South Georgia area

   Abstract:  Foregut contents of the Antarctic krill Euphausia superba Dana which were collected in ... the South Georgia area in austral winter, 12 July ~ 4 August 1992 were observed. A total of 130 ... were examined in this study. The foregut contents of the krill consisted of various fragments of ... crustacean zooplankton in 77 individuals out of 130 examined. Among the fragments a portion of the pereiopods ...

   Meeting Document : WG-KRILL-93/30 : Auteur(s): Y. Nishino and A. Kawamura (Japan)

10. The toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2016/17

    in the 2018 season. Catch rates, length frequency data, access to research blocks and Chapman biomass ... Abstract:  Fishing in the Amundsen Sea region (SSRUs 882C–H) has been managed through a research ... to carry out a reliable stock assessment of the toothfish stock in that area. In this report, we ... precautionary. In the 2016 and 2017 seasons, a total of 19 tagged fish (excluding within season recaptures) were ...

    Meeting Document : WG-FSA-17/39 : Auteur(s): S. Parker and S. Mormede

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