Résultats de la recherche

1. Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Bird Island, South Georgia during the 1999 winter and the 1999/2000 pup rearing season

   and a 94% decrease on the highest previous total (1992). Four of these animals wereentangled in ... plastic packaging bands, double that observed in the 1998 winter, and a return to thehigh levels observed ... on the 1998 winter. The number of seals observed entangled in the summer was the second lowest ... recorded to date,being 42% lower than in the 1998/99 season. The proportion of adult animals affected was ...

   Meeting Document : SC-CAMLR-XIX/BG/02 : Auteur(s): Delegation of the United Kingdom

2. Summer distribution, abundance and structure of krill populations (Euphausia superba and Euphausia crystallorophias) sampled by plankton net in the western Ross Sea (January–February 2000)

   of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... double oblique tow. Mean relative biomass of Antarctic krill Euphausia superba, in the area north of ... 1000m3. The high abundance of Euphausia superba (1510 g/1000m3) found in a single haul on the Mawson Bank ... Area (73°S 173°E) was remarkable. Ice krill Euphausia crystallorophias replaced the Antarctic krill in ...

   Meeting Document : WG-EMM-00/38 : Auteur(s): M. Azzali, A. Sala and G. Brancato (Italy)

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

   ) 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 ... fishing effort occurs in winter; (b) when longlines are set during the day; (c) in the waters around ... 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)

4. Revised proposal for a CCAMLR sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea

   from a well- designed survey in the Ross Sea could be a useful input into the stock assessment model ... survey was presented to the 2011 meeting of WG-SAM. In this paper we provide an update of the preliminary ... for the research proposal for a longline survey of pre-recruit toothfish in the southern Ross Sea ... location, the number of sets in each stratum required to achieve target c.v.s, and associated sampling ...

   Meeting Document : WG-FSA-11/47 : Auteur(s): S.M. Hanchet, S. Mormede, S.J. Parker and A. Dunn (New Zealand)

5. AERIAL SURVEYS OF WEDDELL SEALS DURING 2007-08, WITH NOTES ON THE HISTORY OF AERIAL CENSUSES IN THE ROSS SEA AND RECOMMENDATIONS FOR CONTINUED COUNT EFFORT

   Antarctic toothfish (Dissostichus mawsoni), and currently there is no ecosystem monitoring program (CEMP) in ... place under CCAMLR with respect to the Ross Sea toothfish fishery. In a previous paper submitted to EMM ... in 2007 (WG-EMM 07/13), we described procedures whereby aerial photography could be used to monitor ... Weddell seals along the Victoria Land coast. That area would be important to monitor changes in ...

   Meeting Document : WG-EMM-08/23 : Auteur(s): D. Siniff and D. Ainley (USA)

6. Entanglement of Antarctic fur seals in marine debris at Cape Shirreff and San Telmo Islets, Livingston Island, Antarctica: 1988–1997

   in marine debris (neck collars) at SSSI N°32 and CEMP site 'Cape Shirreff and San Telmo islets ... results indicate that 45% of the entanglement material found in a total of 20 individuals (nine subadult ... packing bands, in contrast to the remaining percentage (55%) which corresponded to discarded fishing ... versus total population in the area per season is considered to be low, and never surpass percentages of ...

   Meeting Document : SC-CAMLR-XVI/BG/33 : Auteur(s): Delegation of Chile

7. Results of acoustic assessment of krill biomass in Subarea 48.2 during summer 1996

   Abstract:  In the period from 24 February to 7 March 1996 in the cruise of RV "Atlantida" ... ; acoustic assessment of krill biomass and distribution was carried out in study area restricted with 59° 10 ... sq.mi1es was located in the zone of two circulation systems of climatic scale interaction: Antarctic ... Circumpolar Current and Weddell Sea water circulation. Researches in the study area included a broad spectrum ...

   Meeting Document : WG-EMM-96/36 : Auteur(s): Sunkovich, V.I., Kasatkina, S.M., Abramov, V.M., Polischuk, M.I., Sushin, V.A., Shnar, V.N.

8. Physical and behavioural influences on larval fish retention: contrasting patterns in two Antarctic fishes

   Abstract:  Waters around South Georgia are amongst the most productive in the Southern Ocean, and ... support internationally important fisheries. However, there is significant inter-annual variability in ... retention of the planktonic stages (eggs and larvae) of marine fish can play a key role in the maintenance ... grounds may contribute to the failure of the N. rossii population to recover from its collapse in the ...

   Meeting Document : WG-FSA-12/P10 : Auteur(s): E.F. Young, J. Rock, M.P. Meredith, M. Belchier, E.J. Murphy and G.R. Carvalho

9. Among-year variation in growth of Antarctic krill Euphausia superba based on length-frequency data

   Abstract:  Understanding the temporal variability in vital rates (e.g. growth and survivorship) of ... variation are rare because they often require expensive long-term tag-recapture programs. In marine pelagic ... Southern Ocean over a span of 19 yr to document among-year variation in krill growth during the austral ... estimates of among-year variation in krill growth. We estimate very high among-year variation in growth ...

   Meeting Document : WG-EMM-13/P01 : Auteur(s): A.O. Shelton, D. Kinzey, C. Reiss, S. Munch, G. Watters and M. Mangel (USA)

10. Discussion on recent results from an integrated assessment of Antarctic krill (Euphausia superba) in Subarea 48.1

    from three of the models provide a robust picture of changes in the krill population.  An annual model ... surveys estimated similar absolute biomasses and changes in biomass.  A seasonal model estimated similar ... changes in biomass but lower absolute biomasses than the two annual models.  A monthly model estimated ... different changes in biomass but predicted absolute biomasses that were similar to those from the seasonal ...

    Meeting Document : WG-EMM-14/35 : Auteur(s): G.M. Watters, C.S. Reiss and D. Kinzey (USA)

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