Resultados de la búsqueda

1. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2005/06

   nine years in Subarea 88.1 and for five years in Subarea 88.2 with a large amount of data collected on ... toothfish and the associated bycatch. All SSRUs in the two subareas except for 881D and 882C have now been ... combined catch limit of 3451 t. The subarea catch limit was almost reached in both Subarea 88.1 and 88.2 ... catch limit being slightly exceeded in the 2006 season. Concentration of effort within a smaller spatial ...

   Meeting Document : WG-FSA-06/29 : Autor(es): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)

2. Oceanological factors affecting formation of mackerel icefish aggregations in the South Georgia area during different seasons of the year

   Abstract:  In wintering period icefish do not form aggregations, is feeding inactively and ... disperse at the depths more than 250 m within rather narrow temperature range (1.6-1,7ºC). In this period ... the water temperature is a limiting factor restricting fish distribution. In spring-summer icefish are ... feeding at the water temperature from 0.0ºC to 1.9ºC in the South Georgia area and to 2.0ºC near Shag ...

   Meeting Document : WG-FSA-05/76 : Autor(es): Zh.A. Frolkina (Russia)

3. Decrease in numbers of the eastern rockhopper penguins Eudyptes chrysocome filholi at Marion Island, 1994/95 to 2002/03

   from about 173 000 pairs in 1994/95 to about 67 000 pairs in 2001/02. During 1994/95-2002/03 pairs ... adults, and there was a decrease in the mass at arrival at breeding colonies of both males and females ... . Except in 1997/98, the mass of chicks at fledging was less than that recorded at two other localities ... a marked increase in the contribution of fish to the diet in 1999/00 that coincided with an increase ...

   Meeting Document : WG-EMM-03/10 : Autor(es): R.J.M. Crawford, J. Cooper, B.M. Dyer, M.D. Greyling, N.T.W. Klages, D.C. Nel, J.L. Nel, S.L. Petersen and A.C. Wolfaardt (South Africa)

4. Penguin demography and winter distributions in the Antarctic Peninsula region

   Abstract:  Our long-term seabird research at Admiralty Bay has documented annual variability in ... physical processes to their effects on dependent predators in the Southern Ocean. Our most recent results ... present a conceptual model linking increasing temperatures and decreasing sea ice cover in the Antarctic ... Peninsula region to declines in krill and penguin populations. Winter temperatures in the Antarctic ...

   Meeting Document : WG-EMM-01/32 : Autor(es): W. Trivelpiece and S. Trivelpiece (USA)

5. Interannual variation in the autumn diet of the gentoo penguin Pygoscelis papua at Laurie Island, Antarctica

   migrant adults were sampled during 1993, 1995 and 1996. Fish were the most important prey by mass in 1995 ... (81.1%) and 1996 (60.5%) whereas crustaceans predominated in 1993 (70% by mass). Euphausia superba was ... largely the most important prey among the eleven crustacean taxa identified in the samples. Among fish ... , species of the family Nototheniidae predominated in the diet with G. gibberifrons as the most important ...

   Meeting Document : WG-EMM-99/19 : Autor(es): N. Coria, M. Libertelli, R. Casaux and C. Darrieu (Argentina)

6. ASSESSMENT OF PATAGONIAN TOOTHFISH POPULATION IN THE NORTH OF SUBAREA 48.4 USING DATA FROM A FOUR-YEAR TAGGING EXPERIMENT

   Abstract:  1. The bycatch TAC of 12 tonnes of macrourids was reached in 2008/09 triggering the ... in 2008/09, slightly under the target of 375 for the full 75 tonnes of catch; 3. There were 29 D ... . eleginoides tag returns in 2008/09, bringing the total from all seasons up to 54 tag recaptures; 4. A total of ... 12 D. mawsoni and 269 rajids were tagged in all seasons combined though none were recaptured; 5 ...

   Meeting Document : WG-FSA-09/17 : Autor(es): J. Roberts and D.J. Agnew (United Kingdom)

7. DEFINING TAG RATES AND TACS TO OBTAIN SUITABLY PRECISE ABUNDANCE ESTIMATES FOR NEW AND EXPLORATORY FISHERIES IN THE CCAMLR CONVENTION AREA

   catches (TACs) that would be expected to yield a pre-specified precision in a resultant abundance estimate ... formula that gives the expected coefficient of variation of the abundance estimate in terms of the number ... of releases and recaptures, which can in turn be expressed in terms of the tagging rate per tonne ... be extremely useful in terms of defining suitable catch levels and tagging rates required to obtain a ...

   Meeting Document : WG-SAM-08/06 : Autor(es): R.M. Hillary (UK)

8. Consumption of krill by minke whales in Areas IV and V of the Antarctic

   (Balaenoptera acutorostrata) in Areas IV and V of the Antarctic was estimated from diurnal change in the ... Whale Research Program Under Special Permit in the Antarctic) data. Estimates of the daily food ... summer in Areas IV and V were 14.7- 17.8 x 105 t and 63.2- 77.0 x 105 t, respectively. The values in Area ... IV were equivalent to roughly one- fourth of a total estimate biomass of krill in Area IV ...

   Meeting Document : WG-EMM-97/17 : Autor(es): Fujise, Y., Tamura, T., Ichii, T.

9. Variation in echosounder calibration with temperature and some possible implications for acoustic surveys of krill biomass

   krill surveys, and exhibits acceptable temporal stability in system gain settings. Between Antarctic ... seasons, this echo-sounder has additionally been calibrated in temperate European waters and, under these ... conditions, calibrated gain settings differ markedly from those applied in the Antarctic, even after ... appropriate adjustments for differences in sound speed between locations have been made. Here we present ...

   Meeting Document : WG-EMM-97/52 : Autor(es): Watkins, J.L., Woodroffe, P., Brierley, A.S., Goss, C.

10. Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 1993 winter and 1993/94 pup-rearing season

    Abstract:  Surveys of Antarctic fur seals entangled in man-made marine debris were carried out for ... the fourth consecutive winter and sixth consecutive summer at Bird Island, South Georgia. In the 1993 ... in 1990 and 1991. Nearly all animals were juveniles, half with severe injuries and the proportion of ... females (40%) was the highest yet reported. The proportion of animals entangled in packaging bands was the ...

    Meeting Document : SC-CAMLR-XIII/BG/03 : Autor(es): Delegation of United Kingdom

Páginas