Resultados de la búsqueda
-
RECENT POPULATION ESTIMATES AND TRENDS IN NUMBERS OF ALBATROSSES AND GIANT PETRELS BREEDING AT THE SUB-ANTARCTIC PRINCE EDWARD ISLANDS
Edward Island, mirroring a decrease of roughly 2% per year at Marion Island from 1998 to 2005, a decline ... Prince Edward Island in 2008, possibly as a result of better coverage compared to 2001. Dark-mantled ... a negative trend from the early 1980s, whereas lightmantled sooty albatrosses P. palpebrata have ...
Meeting Document : WG-EMM-10/P4 : Autor(es): P.G. Ryan, M.G.W. Jones, B.M. Dyer, L. Upfold and R.J.M. Crawford
-
Compliance requirements for an orderly development of the krill fishery
, such a large increase required the inclusion of other elements in the conservation measure to ... facilitate the orderly and precautionary development of the fishery. Australia considers that there are a ... from a compliance perspective, the following is required to ensure the orderly development of the krill ... (Exploratory fisheries) be applied to CM 21-03 (Notifications of intent to participate in a krill fishery ...
Meeting Document : CCAMLR-XXVI/31 : Autor(es): Delegation of Australia
-
Descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2003/04
Abstract: A descriptive analysis of the toothfish tagging programme carried out in the Ross Sea ... Zealand vessels were unavailable at the time of the analysis. A total of 4903 Antarctic toothfish have ... without significant damage to fish, and there appears to be a trade-off between maximising size of ... is 13% per year. Author(s): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand) Title: Descriptive ...
Meeting Document : WG-FSA-SAM-05/10 : Autor(es): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)
-
Foraging areas of black-browed and grey-headed albatrosses breeding on Macquarie Island in relation to marine protected areas
-order predators, there is a paucity of data that can be used to evaluate their efficacy in achieving ... this purpose. 2. We assessed the effectiveness of a network of MPAs around Macquarie Island in the ... the areas utilised by black-browed albatrosses and a licensed trawl vessel operating within 200nm of ... the efficacy of MPAs in protecting foraging habitats outside of the breeding season. Author(s): A ...
Meeting Document : WG-FSA-04/49 : Autor(es): A. Terauds, R. Gales, G.B. Baker and R. Alderman (Australia)
-
An interlaboratory comparison of ages estimated for Dissostichus eleginoides from the Argentine Sea, southwest Atlantic Ocean
University, Norfolk, Virginia, United States of America. (CQFE). As a consequence of the exchange of otoliths ... a clearer section. More hyaline bands were visible in the NIWA preparations, particularly near the ... three readers indicate a reasonable consistency for otoliths. The indices of average percent error for ... comparisons between R1 and R2 are satisfactory. Reader R3 generally produced older age because he has a ...
Meeting Document : WG-FSA-04/45 : Autor(es): M.C. Cassia (Argentina), P.L. Horn (New Zealand) and J.R. Ashford (USA)
-
Population dynamics of the wandering albatross Diomedea exulans at Marion Island: long-line fishing and environmental influences
that attempts to breed in a given year. Changes in several demographic parameters that appear to be ... lower than that of males. Males who lost partners took 40% longer than females to find a new mate ... , suggesting a male-biased population. Survival rates of juvenile males and females did not differ. The age ... supplementary food being made available by the initiation of a longline fishery for Patagonian toothfish ...
Meeting Document : WG-EMM-03/11 : Autor(es): D.C. Nel, F. Taylor, P.G. Ryan and J. Cooper (South Africa)
-
Conflict or co-existence? Foraging distribution and competition for prey between Adélie and chinstrap penguins
both species was exclusively Antarctic krill (Euphausia superba) of the same size range. In a year of ... low prey availability (2000), there was a statistically significant segregation of foraging areas ... between the two species, however, in a year of normal resource availability (2001) there was no such ... segregation. There was a significant difference in the foraging areas used by Adélie penguins between years ...
Meeting Document : WG-EMM-02/15 : Autor(es): A.S. Lynnes, K. Reid, J.P. Croxall and P.N. Trathan (United Kingdom)
-
The Ross Sea, Antarctica, where all ecosystem processes still remain for study
Abstract: The Ross Sea is a well-defined embayment of Antarctica about the size of southern ... lost its large baleen whales but otherwise is intact. A huge multidisciplinary, international ... past 45 years. In particular the activities of the US, NZ and Italian Antarctic programs have been a ... growing. The economic value of the resources should be weighed against the value of the system as a unique ...
Meeting Document : WG-EMM-02/60 : Autor(es): D. Ainley (USA)
-
Population dynamics of wandering albatrosses Diomedea exulans at sub-Antarctic Marion Island: longline fishing and environmental influences
and changes in the proportion of the population that attempts to breed in a given year. We describe ... females to find a new mate, suggesting a male-biased population. Survival rates of juvenile males and ... 1990s may be linked to large amounts of supplementary food being made available by the initiation of a ...
Meeting Document : WG-FSA-02/16 : Autor(es): D.C. Nel, P.G. Ryan and J. Cooper (South Africa)
-
Solutions to seabird by-catch in Alaska’s demersal longline fisheries
for improvement and innovation. A key feature of this program was an industry-agency-academic ... abundance, attack rate, and hooking rate of seabirds in both fisheries. Based on our results, we recommend a ... , among regions. Paired streamer lines were robust in a wide range of wind conditions and required little ... adjustment as physical conditions changed. Functionally, paired streamer lines created a moving fence that ...
Meeting Document : WG-FSA-01/35 : Autor(es): E.F. Melvin, J.K. Parrish, K.S. Dietrich and O.S. Hamel (USA)