Résultats de la recherche

1. Proposal for an experimental crab fishery in Subarea 48.3

   fishing operations continue until the TAC for the first fishing season is attained. Phase 2 starts at the ... areas. After Phase 2 normal fishing operations are conducted until CCAMLR initiates closure of the ... phase, fishing effort is redirected to the three local areas depleted during Phase 2. The experimental ...

   Meeting Document : WG-FSA-93/22 : Auteur(s): George Watters (USA)

2. The foraging range of Adelie penguins at Bechervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery

   system. Birds were tracked over four foraging trips (by 2 females and 4 males) during the incubation ... period (November-December 1991) and 17 trips (by 4 females and 2 males) throughout January 1992 when ... ) approximately 110 km distant at its closest point. Birds feeding chicks also made journeys of 1-2 days ranging ...

   Meeting Document : WG-CEMP-92/36 : Auteur(s): K.R. Kerry, J.R. Clarke and G.D. Else (Australia)

3. Progress report on the joint research for Dissostichus spp. in Subarea 88.3 by the Republic of Korea and New Zealand in 2018/19

   distribution with modes near 70 cm and 150–160cm. Proportions for female maturity stages 1, 2, and 3 were ... 2 accounted for 42.2% and 55.9%, respectively. Regional differences in female and male maturities ... were observed with stage 1 and 2. Otolith, stomach contents, gonad, fin and muscle samples were ...

   Meeting Document : WG-SAM-2019/11 : Auteur(s): Delegations of the Republic of Korea and New Zealand

4. Moving towards a new era in ecosystem-based krill fishery management

   greenweight across vessels; 2) ensuring guides for finfish larvae and ice krill are provided to SISO observers ... ; 3) ensuring a method for bycatch reporting at 2-hour intervals in the continuous mid-water trawl ... method. CCAMLR reviews CM 21-03 to incorporate the agreed methodology to estimate 2-hour interval catches ...

   Meeting Document : SC-CAMLR-38/BG/22 : Auteur(s): Submitted by ASOC

5. Net sample validation of acoustic techniques used to identify and size Antarctic krill

   ). Here we compare net and acoustic data from 2 cruises around South Georgia in 1996 in order to assess ... kHz (ΔMVBS = MVBSI20- MVBS3S; where ΔMVBS between 2 & 12 dB). Biomass values estimated from krill ... = 0.94 visual classification, r2 = 0.99). Krill size was predicted from scattering models using the 2 ...

   Meeting Document : WG-EMM-97/46 : Auteur(s): Watkins, J.L., Brierley, A.S.

6. Inter-annual variability in krill density at South Georgia: 1997–2012

   resets ranged several orders of magnitude (0 to 10 000 gm-2) and its distribution was highly skewed with ... , mean density for the area) showed several years of moderate to high values (µ > 30 gm-2 ... ) interspersed with years (1999-2000, 2004, 2009-2010) of very low density (µ < 30 gm-2).   Author(s):  S ...

   Meeting Document : WG-EMM-13/14 : Auteur(s): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)

7. Variability and predictability of Antarctic krill swarm structure

   revealed 2 principal swarm types, which differed in both their dimensions and packing-concentrations. Type ... ) whereas type 2 swarms were an order of magnitude larger and had packing concentrations up to 10 times ... and large and superswarms within the type 2 group. A minor group (swarm type 3) was also found ... . Larger (type 2) swarms were more commonly found during nighttime or when it was overcast during the day ...

   Meeting Document : WG-EMM-10/P10 : Auteur(s): G.A.Tarling, T. Klevjer, S. Fielding, J. Watkins, A. Atkinson, E. Murphy, R. Korb, M. Whitehouse and R. Leaper

8. Further development and progress towards evaluation of an Antarctic toothfish (Dissostichus mawsoni) stock model for the Ross Sea

   (single-area). The second and third scenarios (2-area and 3-area respectively) split the Ross Sea into ... either two or three discrete areas, with migrations of fish between areas. The 2-area model appeared to ... data simulated from the 2-area model. All the multi-area models investigated here could do with ...

   Meeting Document : WG-FSA-SAM-05/12 : Auteur(s): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)

9. Report of the Workshop for the International Coordinated Survey in conjunction with CCAMLR-2000 Survey

   the highest and lowest surveys, biomass densities on three remaining surveys were 49.2 g m-2 (CV 19.5 ... %), 39.5 g m-2 (CV 15.2 %) and 43.0 g m-2 (CV 14.1 %) over a nine-week period. Maps of biomass density for ...

   Meeting Document : WG-EMM-01/68 : Auteur(s): Delegations of Japan, Rep. of Korea, USA and Peru

10. An evaluation of reduced target strength estimates reported for krill (Euphausia superba)

    strength from the data and fall into three categories: 1) Errors in measurements and assumptions; 2 ... directivity effects as a result of items under category 1; an estimated 2-3 dB bias due to systematic errors ... under category 2; and an estimated 3-4 db error due to category 3. Thus there is reason to believe that ...

    Meeting Document : WG-KRILL-90/13 : Auteur(s): M.C. Macaulay (USA)

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