Résultats de la recherche

1. An idea to incorporate potential recruitments in the krill density model

   Abstract:  A krill density model suggested during WG-EMM at Kochi (Dy?(1-Rl)-Dy-1?e-M=0) still ... involved uncertainties of age 1 krill. Present document improves the model by taking the uncertainties in ...

   Meeting Document : WG-EMM-99/51 : Auteur(s): S. Kawaguchi and M. Naganobu (Japan)

2. Relationships between oceanographic environment and distribution of krill and baleen whales in the Ross Sea and adjacent waters, Antarctica in 2004/05

   below are MTEM-200 values).- Antarctic krill mainly distributed in the waters between 0 to-1℃ of MTEM ... extended in the waters less than-1℃ of the Shelf Water (SW) zone. Ice krill distributed in the waters ... colder than-1℃ (SW) but did not ℃ cur in ASW (warmer than-1℃). Other zooplankton and fishes also showed ... distributed in the ASW and SW zones with high density around-1 ℃ in a continental shelf slope frontal zone ...

   Meeting Document : WG-EMM-08/31 : Auteur(s): M. Naganobu, S. Nishiwaki, H. Yasuma, R. Matsukura, Y. Takao, K. Taki, T. Hayashi, Y. Watanabe, T. Yabuki, Y. Yoda, Y. Noiri, M. Kuga, K. Yoshikawa, N. Kokubun, H. Murase, K. Matsuoka, T. Iwami and K. Ito (Japan)

3. Seabird by-catch by tuna longline fisheries off southern Africa, 1998–2000

   , seabird bycatch rates were high, with a mean of 1.6 birds killed per 1 000 hooks. Japanese vessels (1 ... % effort observed) had a higher bycatch rate (2.6 birds per 1 000 hooks, range per trip 0.1–5.4) than South ... 600 hooks (0.01 birds per 1 000 hooks). Shy Thalassarche cauta, black-browed T. melanophris and yellow ...

   Meeting Document : WG-FSA-01/28 : Auteur(s): P.G. Ryan, D.G. Keith and M. Kroese (South Africa)

4. Water mass distribution and circulation west of the Antarctic peninsula and including Bransfield Strait

   34.6 to 34.73 and oxygen values below 4.5 ml 1-1, is the most prominent water mass in this region, is ... 0.7 to 1.43 X 10-6 m s-1. The freshwater input needed to balance the salinity input from CDW is on the ... order of 0.63 m y-1, which can be supplied by local precipitation and advection of ice into the region ...

   Meeting Document : WG-EMM-95/67 : Auteur(s): Smith, D.A., Lascara, C.M., Klinck, J.M., Hofmann, E.E.

5. Krill distribution and biomass variability within Subarea 48.3 in June 1991

   less than 1 tonne. Average statistical parameters of swarms in the polygon varied insignificantly from ... survey to survey, while the swarm number varied within the board range from 1 918 to 7 000 and further to ... 1 554 units. Krill biomass in the polygon varied spasmodically within the range from 1 091 to 6 085 ...

   Meeting Document : WG-KRILL-93/35 : Auteur(s): S.M. Kasatkina, E.N. Tymokhin, P.P. Fedulov and K.E. Shulgovskiy (Russia)

6. Mercury concentrations of five species of Antarctic fish collected from CCAMLR Subareas 88.1 and 88.2

   Abstract:  The mean mercury level for the D. eleginoides 1998 sample was 0.43 mg/kg-1, which is ... slightly lower than the permissible level of 0.5 mg/kg-1 set by the New Zealand Food Safety Authority ... (NZFSA). In contrast, mean levels of mercury for D. mawsoni were 0.10 mg/kg-1 in the 1998 samples and ... 0.16 mg/kg-1 in the 2006 samples, both of which are well below the permissible level. Mercury levels ...

   Meeting Document : WG-FSA-07/24 : Auteur(s): S.M. Hanchet, D.M. Tracey, A. Dunn, P.L. Horn and N. Smith (New Zealand)

7. Interannual variations of water thermochaline structure on South Georgia Island, South Orkney Islands and Shetland Islands shelves

   intermediate cold layer. In some years of this type (1 97 1, 1972, 1978, 1982) the layer had positive ... . Lack of surface water of summer modification was characteristic of second year type (1 970, 1979, 198 1 ...

   Meeting Document : WG-EMM-00/34 : Auteur(s): P. Chernyshkov, V. Shnar, O. Berezhinsky and I. Polischuk (Russia)

8. Relationship between Antarctic krill (Euphausia superba) variability and westerly fluctuations and ozone depletion in the Antarctic Peninsula area

   /1997. The strength of westerlies was significantly related to recruitment of 1-year-old krill (1' ... westerlies also had a strong correlation with chlorophyll a (r = 0.63) and sea ice cover with a 1-year time ... of r = 0.76 with a level of significance of 1 %). We suspect that ozone depletion impacts directly ...

   Meeting Document : WG-EMM-99/52 : Auteur(s): M. Naganobu, K. Kutsuwada, Y. Sasai and T. Taguchi (Japan) and V. Siegel (Germany)

9. Spawning pattern and type of fecundity in notothenioids collected around the Elephant and South Orkney Islands

   ), mature (range: 1.16 to 1.86 mm) and ovulated oocytes (range: 4.5 to 5.387 mm; average FR: 3 oocytes·g-1 ... oocytes·g-1) than form hydrated ovaries (range: 1-2 oocytes·g-1). The results confirm these species have a ...

   Meeting Document : WG-FSA-16/22 : Auteur(s): G. Plaza, P.M. Arana, F. Becker, A. Zavatteri and V.H. Castillo

10. Otolith chemistry reveals local population structure of Antarctic toothfish (Dissostichus mawsoni) within the CCAMLR Subarea 48.6

    in Sr·Ca-1, Mg·Ca-1 and Ba·Ca-1 for the otolith of D. mawsoni were examined between three blocks. The ... results indicated that no significant difference in Me·Ca-1 of either otolith nuclei or edges between ...

    Meeting Document : WG-FSA-18/75 : Auteur(s): L. Wei, G.P. Zhu, S. Somhlaba, X.Y. Yu and M. Duan

Pages