Résultats de la recherche

1. Fishery Report 2013: Champsocephalus gunnari South Georgia (Subarea 48.3)

   for the second year of an assessment period (e.g. 2013) are therefore always lower than those for the ... , Annex 8, paragraph 8.1). Mitigation measures for incidental mortality of birds and mammals 20. CM ... year. 7 Ecosystem implications/effects 22. The current pelagic trawl fishery for C. gunnari in ... gunnari) grow rapidly to a maximum size of 55 cm, reaching a marketable size of 30 cm in three years ...

   Document : Site Section: Publications

2. Analysis of scientific observer data from the Saga Sea 2006–2007

   not create an ideal sampling environment for comparing the performance of the two types of trawls ... catch rates of larval fish on the Saga Sea are similar to those reported for conventional trawls. Author ... Sea from June 2006 to June 2007. This paper presents an initial analysis of the krill and fish bycatch ... for a number of weeks or months before changing, for operational reasons to the other type. This did ...

   Meeting Document : WG-EMM-07/16 : Auteur(s): P. Orr, J. Hooper, D. Agnew, J. Roe, G. Doherty and A. Pryor

3. Movements of tagged Antarctic toothfish (Dissostichus mawsoni) in Subarea 48.6 in relation to stock structure hypotheses

   Abstract:  We examined movements of tagged Antarctic toothfish (Dissostichus mawsoni) for subarea ... (Söffker et al., 2018). Meanwhile, no migrations of tagged fish between northern seamounts (research blocks ... feeding grounds, respectively, have been observed to date. The lack of tag movement between the two areas ... northern seamount area and shelf area. Therefore, population dynamic modelling approach developed for the ...

   Meeting Document : WG-FSA-2019/05 : Auteur(s): T. Ichii, M. Okazaki, T. Okuda and S. Somhlaba

4. KRILLBASE: a multinational, circumpolar database of abundance of Antarctic krill and salps

   data have been collected on the abundance of the two taxa from net sampling surveys since 1926, but ... webs and biogeochemical cycles. Sustainably managing the fishery for Antarctic krill against a backdrop ... they are stored in national archives, sometimes only in archived notebooks. An international team of ... two epochs (1926-1939 and 1976-2011), including over 215 individual surveys from 11 nations, and data ...

   Meeting Document : SC-CAMLR-XXXV/BG/24 Rev. 1 : Auteur(s): A. Atkinson, S. Hill, H. Peat, R. Downie and L. Gerrish

5. Sur la répartition provisoire du seuil de déclenchement dans la pêcherie d'Euphausia superba des sous-zones statistiques 48.1, 48.2, 48.3 et 48.4

   an economic damage to the krill fishery. Author(s):  Delegation of Ukraine Title:  On interim ... distribution of the trigger level in the fishery for Euphausia superba in statistical Subareas 48.1, 48.2, 48.3 ... and 48.4 Microsoft Word File:  e-cc-xxxv-30.docx Approval:  Approved Secretariat Workflow Status ... :  Content Approved Delegation responsibility for releasing documents:  Ukraine ...

   Meeting Document : CCAMLR-XXXV/30 : Auteur(s): Delegation of Ukraine

6. Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ground of Subarea 48.1 during the 1990/91 austral summer

   sampling surveys for krill were conducted in the krill fishing ground north of the South Shetland Islands ... were generated, suggesting that hydrodynamic convergence might be responsible for accumulation of krill ... been lower than expected until early February 1991. As for maturity stages of krill, spawning krill ... neritic and nearshore zones. This indicates that slope frontal features may be important for the formation ... 1991 (Figure 1). Transects ran in an offshore-inshore direction with 20 n miles between the transects ... NOAA-A satellites. Typically, twelve locations per day were recorded for each buoy with an accuracy ... biomass estimate for the inshore region, this region was divided into two zones: neritic and nearshore ... ) 188 where Bi = biomass for i-th zone Ai = area for i-th zone. The total biomass (B t) for an ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 183–199 : Auteur(s): Ichii, T., H. Ishii and M. Naganobu

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

   were measured at 1-min intervals in conjunction with CPR samples. Additional physical data for the ... sectors, was not a zone of distinct ecological transition. Two of the identified assemblages were located ... component of both of these assemblages, this species, together with appendicularia, was most abundant south ...

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

8. Using carapace measurements to determine the sex of Antarctic krill (Euphausia superba)

   have not been validated using locally sampled krill. This study reports on a three year study ... allometric equations for calculating total length from carapace length, were derived from South Georgia krill ... independently derives sex-specific regression models for krill collected in the South Shetlands. Allometric ... immature krill resulted in significant bias towards male krill and an overestimation of krill length. We ...

   Meeting Document : WG-EMM-05/26 : Auteur(s): J.D. Lipsky, M.E. Goebel, C.S. Reiss and V. Loeb (USA)

9. Aggregation patterns of pelagic predators and their principal prey, Antarctic krill, near South Georgia

   is an explicit consideration of the separation in space between swarms of krill and aggregations of ... differences in foraging strategies. Published in Journal of Animal Ecology (1993) 62, 000-000 Author(s):  R.R ...

   Meeting Document : WG-CEMP-93/13 : Auteur(s): R.R. Veit (USA), E.D. Silverman (USA) and I. Everson (United Kingdom)

10. DEVELOPMENT OF EFFECTIVE MITIGATION TO REDUCE SEABIRD MORTALITY IN THE ICEFISH (CHAMPSOCEPHALUS GUNNARI) TRAWL FISHERY IN SUBAREA 48.3

     mitigate such mortality. As an interim measures a vessel specific 20‐bird mortality threshold was ...  introduced for Subarea 48.3 in 2001. This provided a strong commercial incentive for industry to develop ...  and simply applied mitigation measure and is thought to be largely responsible for the continued ...  Subarea 48.3 became a concern in the late 1990s. At this time there was little knowledge on how to ...

    Meeting Document : WG-IMAF-09/15 : Auteur(s): B. Sullivan (BirdLife International), J. Clark (United Kingdom), K. Reid (Secretariat) and E. Reid (BirdLife International)

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