Resultados de la búsqueda

1. Influence of tag numbers, size of tagged fish, duration of the tagging program, and auxiliary data on bias and precision of an integrated stock assessment

   estimate annual recruitment and year class strengths. (3) For a simulated lightly fished stock, CASAL ... numbers were important particularly in the early stages of an exploratory fishery to ensure some ... assessments with good quality tagging data had a low bias and reasonable precision for SSB 0 and annual SSB ... estimates, however the precision of SSB status estimates in the final assessment year was relatively low ...

   Meeting Document : WG-SAM-12/24 : Autor(es): P.E. Ziegler (Australia)

2. Distribution and possible areas of spatial mixing of two stocks of humpback whales, a krill predator, in the Indo-Pacific region of the Antarctic revealed by genetic analyses

   Australian (n= 185) and Eastern Australian (n= 104) whales. These were compared with sequences of humpback ... substantial numbers; iii) Eastern Australian whales distribute mainly in Area VW, and probably mix with a ... . These were breeding Stock ‘D’ off Western Australia and breeding Stock ‘E1’ off Eastern Australia. Both ... addition, the Antarctic samples were analyzed with a set of eleven microsatellite DNA loci (independent ...

   Meeting Document : WG-EMM-2019/67 : Autor(es): L.A. Pastene, M. Goto, M. Taguchi and K. Matsuoka

3. Characterisation of skate catches in the Ross Sea region

   individuals than landed starry skates. Eaton cf. skates had a different length frequency, with a narrower ... with other studies suggesting Eaton cf. skates might grow to larger sizes than starry skates. During ... the “Years of the Skate”, a total of about 3300 starry skates and 700 Eaton cf. skates were tagged and ... 13 starry skates and 3 Eaton cf. skates were recaptured and successfully linked to a tag event. In ...

   Meeting Document : WG-FSA-10/25 : Autor(es): S. Mormede and A. Dunn (New Zealand)

4. Detecting trends in the krill fishery

   generally available in the Scientific Committee. Technological information may provide early warnings of ... developments that could later herald an expansion in krill fishing. Information on new products from the krill ...

   Meeting Document : WG-EMM-02/25 : Autor(es): S. Nicol and J. Foster (Australia)

5. Surface water masses, primary production, krill distribution and predator foraging in the vicinity of Elephant Island during the 1989-90 austral summer

   of it. A second front was apparent at the eastern side of the study area and was tentatively ... -fold over the 2-month period with highest concentrations north of Elephant Island and apparent ... associated with an apparent inflow of water from southeast of the study area; this size mode was not evident ... area, with a frontal system existing to the northwest of Elephant Island. 2) Although there was high ...

   Meeting Document : WG-CEMP-90/11 : Autor(es): A.F. Amos, J.L. Bengtson, O. Holm-Hansen, V.J. Loeb, M.C. Macaulay and J.H. Wormuth (USA)

6. Foraging strategies of chinstrap penguins at Signy Island, Antarctica: importance of benthic feeding on Antarctic krill

   trip patterns and diving behaviour of chinstrap penguins breeding at Signy Island, Antarctica, using ... ) and longer overnight (19.9 h) trips, with diurnal trips (74%) being dominant in number (263 out of 355 ... species, with modal maximum dive depth at around 90 to 100 m. Diving patterns and profiles included ... both types of trip fed almost exclusively on Antarctic krill. There was a positive relationship between ...

   Meeting Document : WG-EMM-03/37 : Autor(es): A. Takahashi (Japan), M.J. Dunn, P.N. Trathan (United Kingdom), K. Sato, Y. Naito (Japan), J.P. Croxall (United Kingdom)

7. 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 ... fished. The 2006 D. mawsoni catch was the second highest on record with a total of 3388 t against a ... . The management of the SSRUs within the two subareas was changed for the 2006 season as part of a 3 ... of the fishery by having fewer catch limits. This appeared to be moderately successful, with only one ...

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

8. Review of CCAMLR activities on monitoring marine debris in the Convention Area

   than 3 consecutive years (ranging from 5 to 16 years), these are: Cape Shirreff, (Livingston Island ... the debris associated with seabird colonies. The number of Antarctic fur seal entanglements at Bird ... Island reached a peak in 1993 and has showed a general decline since, with the lowest levels on record ... . The number of seabirds contaminated with hydrocarbons remains low. Author(s):  Secretariat Title ...

   Meeting Document : SC-CAMLR-XXIV/BG/13 : Autor(es): Secretariat

9. REVIEW OF CCAMLR ACTIVITIES ON MONITORING MARINE DEBRIS IN THE CONVENTION AREA

   associated with seabird colonies and animals contaminated with hydrocarbons at a number of sites, primarily ... Bird Island, South Georgia over the last 10 years, but only small amounts from the other sites. Plastic ... Conservation Measure 26-01. Since 1991, data on entanglements of Antarctic fur seals has been received from 3 ... monitored at Bird Island with the majority of debris items being fishing lines and hooks. A total of 67 ...

   Meeting Document : WG-IMAF-09/08 : Autor(es): Secretariat

10. Acoustic estimates of krill density at South Georgia during 11 austral summers between 1981 and 1998

    north-eastern and north-western ends of South Georgia. In four of these years density was higher to the ... fluctuated widely from year to year over this time, ranging from?2 to?150 gm-2 (wet weight). The 1982, 199 1 ...

    Meeting Document : WG-EMM-98/51 : Autor(es): A.S. Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK)

Páginas