Search results

1. 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 : Author(s): M. Naganobu and K. Kutsuwada (Japan)

2. 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 : Author(s): C. Southwell (Australia)

3. 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 : Author(s): L.M. Emmerson, J. Clarke, K. Kerry and C. Southwell (Australia)

4. 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 : Author(s): J. Clarke and K. Kerry (Australia), C. Fowler (USA), R. Lawless, S. Eberhard and R. Murphy (Australia)

5. 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 : Author(s): J. Clarke, K. Kerry, A. Townsend and L. Emmerson (Australia)

6. Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity

   Abstract:  Total scattering cross-sections (st) of Antarctic krill, Euphausia superba, were acoustically measured over a broadbandwidth (36 to 202 kHz) using a new technique [J. De Rosny and P. Roux, 2001, J. Acoust. Soc. Am. 109(6): 2587:2597]. From 18 February to 9 March 2002, mean total target

   Meeting Document : WG-EMM-02/49 : Author(s): D.A. Demer and S. G. Conti (USA)

7. Reconciling theoretical versus empirical target strengths of krill; effects of phase variability on the distorted wave Born approximation

   Abstract:  A model was recently proposed to predict the target strengths (TS) of Antarctic krill, Euphausia superba, versus incidence angle (?) [McGehee et. al, 1998, Deep Sea Res. Pt2, 45(7)1273-1294]. Based on the distorted wave Born approximation (DWBA), the model depends upon the coherent

   Meeting Document : WG-EMM-02/50 : Author(s): D.A. Demer and S.G. Conti (USA)

8. Antarctic fur seals in the South Shetland Islands: pup production and population trends

   Abstract:  Discovered in 1819, the South Shetland Islands soon became the focus of intensive sealing efforts. Abundant, but never quantified, Antarctic fur seal populations were exterminated by 1874 and did not begin re-colonizing until ~80yrs later. The first reported pups born post-exploitation

   Meeting Document : WG-EMM-02/51 : Author(s): M.E. Goebel (USA), V.I. Vallejos (Chile), W.Z. Trivelpiece, R.S. Holt (USA) and J. Acevedo (Chile)

9. A proposal for modifications to Standard Method C2: fur seal pup growth

   Abstract:  Antarctic fur seal pup growth studies presented and reviewed by WG-EMM-01 led to discussion on the need to modify Standard Method C2: Pup growth. The issues discussed relate to the timing of sampling and the selection of animals to weigh. The following is a proposal on how the protocol

   Meeting Document : WG-EMM-02/52 : Author(s): M.E. Goebel (USA)

10. Foraging range and at-sea locations of female Antarctic fur seals, Cape Shirreff, Livingston Island, from 1999–2002

    Abstract:  During the breeding season, Antarctic fur seals are central-place foragers, ranging from their colony to feeding areas hours to days offshore, returning periodically to suckle. Outside of this, little is known about a female’s foraging strategy, her success upon which depends not only

    Meeting Document : WG-EMM-02/53 : Author(s): M.E. Goebel, S.N. Sexton and D.P. Costa (USA)

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