Résultats de la recherche

1. A method for inferring movement rates of fish from mark–recapture data

   Abstract:  This paper presents methods to infer the rate of movement of fish that are marked ... , released, and subsequently captured. The information that is available is the location and date of the ... release and the recapture. In addition, the intensity of fishing effort (i.e. sampling) by location and ... time is known. The simplest approach is to make a frequency plot of the distance between each release ...

   Meeting Document : WG-FSA-05/66 : Auteur(s): C. Wilcox (Australia)

2. Population structure of icefish (Champsocephalus gunnari) in the South Georgia area (Antarctic)

   Abstract:  The living conditions of Champsocephalus gunnari in the eastern, western shelf areas of ... South Georgia and at Shag Rocks are different. The length-age structure of C.gunnari groupings ... inhabiting the areas at Shag Rocks and South Georgia is characterized with the lack of fish below 11 cm in ... length and older than 6-7 years (10-11 years in the South Georgia area) and considerably lower number of ...

   Meeting Document : WG-FSA-04/40 : Auteur(s): Zh.A. Frolkina and I.A. Trunov (Russia)

3. Population dynamics of the wandering albatross Diomedea exulans at Marion Island: long-line fishing and environmental influences

   breeding population of the Vulnerable wandering albatross Diomedea exulans. The numbers of birds breeding ... result of both real changes in the size of the population and changes in the proportion of the population ... influenced by both environmental and anthropogenic effects are described. The proportion of first-time ... survival rates of breeding adults were negatively correlated with Japanese pelagic longline fishing effort ...

   Meeting Document : WG-EMM-03/11 : Auteur(s): D.C. Nel, F. Taylor, P.G. Ryan and J. Cooper (South Africa)

4. Sources of variability associated with Adélie penguin CEMP parameters measured at Béchervaise Island, East Antarctica

   we were able to for this paper may be useful because our estimates of temporal variability ... Abstract:  We examine the magnitude of a variety of sources of variability associated with CEMP ... weights, A5: duration of foraging trips, and A7: fledgling weights. Sources of variability can generally ... parameters at around 5-7% CV. The smallest source of variability was associated with measurement error ...

   Meeting Document : WG-EMM-03/48 : Auteur(s): L.M. Emmerson, C. Southwell, J. Clarke and K. Kerry (Australia)

5. Peculiarities of icefish Champsocephalus gunnari (Channichthyidae) distribution in South Georgia area during the surveys made by STM Atlantida in 2000 and 2002

   Abstract:  Reasons of differences in icefish distribution and biomass assessment during two ... surveys made by STM “Atlantida” are revealed. Availability of large icefish concentrations in 2000 in the ... northwest shelf area in 10-100m layer resulted in formation of adult fish aggregations in water column. The ... the bottom even in dark hours of the day. During the two surveys, fry and immature fish occurred in ...

   Meeting Document : WG-FSA-03/55 : Auteur(s): Zh.A. Frolkina, S.M. Kasatkina and N.N. Zhigalova (Russia)

6. Atlas of coastal sea ice in eastern Antarctica

   Abstract:  The attached document provides information on an atlas of sea ice produced by the n. It ... vicinity of the CCAMLR Ecosystem Monitoring Program sites at Bechervaise Island near the Australian Station ... of Mawson, at Edmonson Point in the vicinity of the Italian Station of Terra Nova Bay and at Ross ... Island. The atlas is scheduled for release in August 2002. Here we provide a sample only of the contents ...

   Meeting Document : WG-EMM-02/54 : Auteur(s): K. Michael, K. Hill, K. Kerry and H. Brolsma (Australia)

7. Population dynamics of wandering albatrosses Diomedea exulans at sub-Antarctic Marion Island: longline fishing and environmental influences

   Abstract:  The Prince Edward Islands support the largest breeding population of the vulnerable ... Wandering Albatross Diomedea exulans. The number of birds breeding in this population has fluctuated over ... the past three decades and appears to be the result of both real changes in the size of the population ... and changes in the proportion of the population that attempts to breed in a given year. We describe ...

   Meeting Document : WG-FSA-02/16 : Auteur(s): D.C. Nel, P.G. Ryan and J. Cooper (South Africa)

8. Adélie penguin population change in the pacific sector of Antarctica: relation to sea-ice extent and the Antarctic Circumpolar Current

   Abstract:  One of the longest continuing data sets involving a marine organism in the Antarctic is ... that of annual estimates of breeding population size of Adélie penguins Pygoscelis adeliae at colonies ... on Ross Island, Ross Sea, 1959 to 1997. The sizes of these colonies have displayed significant ... physical environmental factors during that part of the record with comparable sea-ice satellite imagery ...

   Meeting Document : WG-EMM-01/23 : Auteur(s): P.R. Wilson (New Zealand), D.G. Ainley, N. Nur, S.S. Jacobs (USA), K.J. Barton (New Zealand), G. Ballard and J.C. Comiso (USA)

9. The influence of environmental variables and mitigation measures on seabird catch rates in the Japanese tuna longline fishery within the Australian Fishing Zone, 1991–1995

   Abstract:  Long term fisheries observer data were used to analyse the influence of a range of ... environmental variables and mitigation measures upon catch rates of seabirds in the Japanese pelagic longline ... were set during summer, in southern areas of the zone, and during daylight hours. However ... , interpretation of changes in catch rates resulting from the use of mitigation measures or from weather effects ...

   Meeting Document : WG-FSA-98/32 : Auteur(s): N. Brothers, R. Gales and T. Reid (Australia)

10. Environmental variability and the behavioural dynamics of Antarctic fur seals in the South Atlantic

    Abstract:  Variability in the reproductive performance of marine predators may be a result of ... physical forcing by large-scale oceanographic variability. Time lags, remoteness from the epicentre of a ... physical process and the simultaneous action of multiple physical processes often mean that it is difficult ... to link variability in predator performance with specific measurements of oceanographic variability ...

    Meeting Document : WS-AREA 48-98/16 : Auteur(s): I.L. Boyd (UK)

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