Resultados de la búsqueda

1. Seasonal variation in acoustic estimates of krill density at South Georgia during 2001/2002

   Abstract:  Four separate acoustic surveys of Antarctic krill (Euphausia superba) were conducted around South Georgia in the 2001/2002 season: one in November 2001 (early); two during January 2002 (middle), and one in May 2002 (late). The surveys were the second in a five-year series of observations

   Meeting Document : WG-EMM-02/39 : Autor(es): C. Goss, S.A. Grant, N. Cunningham, J.L. Watkins, P.N. Trathan, E. Murphy and K. Reid (United Kingdom)

2. Defining fishing grounds in the Scotia Sea

   Abstract:  This paper provides a method for delineating krill fishing grounds in Area 48 based on commercial catch data for the region held in the CCAMLR database. It also summarises available information on krill distribution and abundance and movement for the region, which can be used to help

   Meeting Document : WG-EMM-02/40 Rev. 1 : Autor(es): I.R. Ball and A.J. Constable (Australia), S. Kawaguchi (Japan) and D. Ramm (CCAMLR Secretariat)

3. Defining predator foraging ranges, illustrated using Adélie penguin foraging tracks from Mawson coast

   Abstract:  One step toward defining small-scale management units is to determine the areas most likely to be foraged by predators from one year to the next, i.e. what is a predator’s feeding range taking into account interannual variation in foraging locations? This paper considers the issues to be

   Meeting Document : WG-EMM-02/41 : Autor(es): I.R. Ball, A.J. Constable, J. Clarke and L. Emmerson (Australia)

4. Deaths of Adélie penguins at Mawson November–December 2001 investigated

   Abstract:  Over 120 adult Adélie penguins were found dead in unusual circumstances on Welch Island near Mawson between 23 November and 4 December, 2001. It is concluded the most likely cause of death was severe injury from being crushed by ice at the ice land interface. Circumstance surrounding the

   Meeting Document : WG-EMM-02/42 : Autor(es): K. Kerry and L. Irvine (Australia)

5. Comparison between the CCAMLR-2000 and KY 1988 surveys on environmental variability of krill in the Scotia Sea, Antarctica

   Abstract:  We assessed the environmental variability of Antarctic krill (Euphausia superba) distribution with comparison between the CCAMLR 2000 Survey and similar scale datasets partially by the Japanese R/V Kaiyo Maru Survey in the 1987/88 austral summer season in the Scotia Sea. There were

   Meeting Document : WG-EMM-02/43 : Autor(es): M. Naganobu (Japan), M. Brandon (United Kingdom), K. Ito, K. Segawa (Japan) and V. Siegel (Germany)

6. Short note: time series of Drake Passage Oscillation Index (DPOI) from 1952 to 1988

   Abstract:  Naganobu et al. (1999) had assessed variability in krill recruitment and density with hypothesized environmental factors; strength of westerly winds (westerlies) determined from sea-level pressure differences across the Drake Passage, sea ice cover and chlorophyll-a in the Antarctic

   Meeting Document : WG-EMM-02/44 : Autor(es): M. Naganobu and K. Kutsuwada (Japan)

7. Assessing the feasibility of regional surveys of land-based predator abundance in the Southern Ocean: a framework for decision making and planning

   Abstract:  In 2000 WG-EMM discussed the need for region-wide and circum-Antarctic estimates of abundance of land-based predators. At the 2001 meeting of WG-EMM it was proposed that a workshop be held in 2002 to assess the feasibility of such broad-scale surveys, and a small intersessional

   Meeting Document : WG-EMM-02/45 : Autor(es): C. Southwell (Australia)

8. An assessment of temporal variability and interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island

   Abstract:  We examined temporal variability in a series of CEMP parameters collected over the period 1991/92 to 2001/02 on Adélie penguins at Béchervaise Island. Parameters relating to chick survival (brooding counts, 2/3 crèche counts and fully crèched chick counts) show large temporal variability

   Meeting Document : WG-EMM-02/46 : Autor(es): L.M. Emmerson, J. Clarke, K. Kerry and C. Southwell (Australia)

9. Post-fledging and winter migration of Adélie penguins (Pygoscelis adeliae) in the Mawson region of east Antarctica

   Abstract:  Seven fledging Adélie penguin (Pygoscelis adeliae) chicks and four post-moult adults were satellite-tracked using the Argos system during the winters of 1995-97 and 1998 respectively. Six fledglings departed from Béchervaise Island near Mawson station (67°35'S, 62°49'E) during

   Meeting Document : WG-EMM-02/47 : Autor(es): J. Clarke and K. Kerry (Australia), C. Fowler (USA), R. Lawless, S. Eberhard and R. Murphy (Australia)

10. Demographic characteristics of the Adélie penguin population of Béchervaise Island after 12 years of study

    Abstract:  Demographic parameters (age-specific mortality rates, fecundity levels and population numbers) were analysed for the Béchervaise Island Adélie penguin colony in eastern Antarctica after 12 years of CEMP monitoring. A life table was constructed, and predicted rates of population growth

    Meeting Document : WG-EMM-02/48 : Autor(es): J. Clarke, K. Kerry, A. Townsend and L. Emmerson (Australia)

Páginas