Résultats de la recherche

1. Has krill fishing the potential to adversely affect recruitment in Antarctic notothenioid fishes?

   by-catch in fisheries targeting krill. The species composition of fish by-catch in krill fisheries is ... well-known from Polish investigations in the late 1970s and the 1980s and from Japanese, Ukrainian, and ... Russian investigations in the 1990s, 2000s and 2010s. However, only a few investigations in the 1990s and ... 2000s made attempts to estimate the quantity of by-caught fish. They demonstrated that, on occasions ...

   Meeting Document : WG-FSA-14/66 : Auteur(s): K.-H. Kock (Germany) and C.D. Jones (USA)

2. Seamount-specific biomass estimates from SSRU 88.2H in the Amundsen Sea derived from mark-recapture data

   calculated for SSRU 88.2H as a whole. The analyses indicate that: Fish seldom move among seamounts within the ... on almost every seamount in every year and usually in proportion to the level of tagging on the ... seamount in the previous year. Trends in local biomass estimates for individual seamounts and SSRU 88.2H ... overall showed a decline in biomass through time with a slight increase in biomass since 2012. The pattern ...

   Meeting Document : WG-FSA-14/58 : Auteur(s): S.J. Parker and S. Mormede (New Zealand)

3. A RE-APPRAISAL OF THE TOTAL BIOMASS AND ANNUAL PRODUCTION OF ANTARCTIC KRILL

   abundance has fluctuated. To estimate krill biomass at the end of last century we combined the KRILLBASE map ... standardised net sampling methodology but they integrate over the period 1926-2004, during which krill ... of relative krill density around Antarctica with the most recent, acoustics-derived, value for the ... CCAMLR Synoptic Survey of the Scotia Sea area (37.3 Mt). Thus the CCAMLR 2000 survey area contains 28% of ...

   Meeting Document : WG-EMM-08/17 : Auteur(s): A. Atkinson (United Kingdom), V. Siegel (Germany), E.A. Pakhomov (South Africa), M.J. Jessopp (United Kingdom) and V. Loeb (USA)

4. Hatching season and growth of Pleuragramma antarcticum larvae near the Antarctic peninsula in austral summer 1993/94

   after hatching, P. antacticum seems to be hatched during June- July, because the mean number of ... Abstract:  Hatching season and larval growth of Pleuragramma antacticum in the water off Antarctic ... Peninsula were determined by the examination of growth increments in otoliths. The samples were collected by ... (54 inds. out of 77 fish larvae) in ichthyoplankton samples, and occurred mainly in cold water of the ...

   Meeting Document : WG-EMM-96/65 : Auteur(s): Cha, S.S., Lee, T.W., Kim, S.

5. A revised estimate of short-term yield for the mackerel icefish (Champsocephalus gunnari) off Heard Island based on a trawl survey in 1998

   Shell Bank) in the vicinity of Heard Island enabled a revised estimate of yield for the coming 2 seasons ... in 1999 and 2000. While the abundances of icefish are lower in 1998 than in 1997, the Age 3 and Age 4 ... cohorts are still sufficiently strong to provide for a yield greater than estimates of the long term ... precautionary yield. Estimates of yield for the Heard Island Plateau population are 732 tonnes for 1999 and 518 ...

   Meeting Document : WG-FSA-98/54 : Auteur(s): A. Constable and D. Williams (Australia)

6. Use of a population model to assess the impact of longline fishing on wandering albatross populations

   developed to simulate population trends over time, using demographic parameters from the population at ... Possession Island Crozets, during 1968 to 1986. The simulation results portray a population decreasing at a ... parameters indicate that both adult and juvenile mortality are contributing to the decrease. Wandering ... ; such deaths are likely to be relatively more frequent among young, naive birds. The model is used to ...

   Meeting Document : WG-IMALF-94/08 : Auteur(s): Coleen L. Moloney, John Cooper, Peter G. Ryan and W. Roy Siegfried (South Africa)

7. Estimation of the fishery–krill–predator overlap

   reduced overlap in Subarea 48.1 after 1990. The RPO and Schroeder index indicated a greater increase in ... Abstract:  Work undertaken during the intersessional period has enabled better use of the krill ... fishery data, and a comparison between the three existing indices of fishery-krill-predator overlap used ... by CCAMLR (catch in the Critical Period and Distance [CPD], Agnew-Phegan index, and Realised ...

   Meeting Document : WG-EMM-99/11 : Auteur(s): Secretariat

8. Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of arrival of adults

   significantly correlated with that of females. Although both species had low weights on arrival after the El ... Penguins, over 26 and 22 years respectively, suggesting over-wintering conditions may influence the ... proportions of birds breeding. For both species the time of arrival of females for breeding, and for ... Rockhopper Penguins the mass of females on arrival, was significantly related to breeding success. Therefore ...

   Meeting Document : WG-EMM-05/38 : Auteur(s): R.J.M. Crawford, J. Cooper, B.M. Dyer and L.G. Underhill (South Africa)

9. Sea ice characterisation of the proposed Ross Sea region Marine Protected Area Special Research Zone

   January in 8 seasons, open later (mostly after the fishery closed) and never completely cleared in 4 ... Abstract:  Paper CAMLR-XXXIV/29 proposes an MPA for the Ross Sea region that includes a Special ... ice within and surrounding the boundaries of the proposed SRZ over the past 16 years, the impact it ... has had on the fishery in the area during that time, and potential influences sea ice might impose on ...

   Meeting Document : SC-CAMLR-XXXIV/BG/31 : Auteur(s): S. Parker, S. Hoyle, S. Hanchet and R.J.C. Currey (New Zealand)

10. By-catch in Australian fisheries in Divisions 58.5.2, 58.4.2 and 58.4.3 during the 2002/03 and 2003/04 fishing seasons

    recapture, even after extended periods at liberty. The distances travelled ranged between 0.2 to 7 nm with ... Abstract:  This paper presents bycatch information for the Australian fisheries in Divisions ... 58.5.2, 58.4.2 and 58.4.3, with estimates of total removals by fishing ground for the 2002/2003 and 2003 ... /2004 seasons. Bycatch in the trawl fisheries was low, approximately 1 to 2% of the total catch (target ...

    Meeting Document : WG-FSA-04/68 : Auteur(s): E. van Wijk and R. Williams (Australia)

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