Résultats de la recherche
-
Towards a seabird mortality risk assessment: distribution of seabirds in the WCPFC Convention Area and potential overlap with fisheries
Abstract: This paper reviews the distribution of seabird species with the WCPFC Area. From a ... review of the distributions of 99 species of albatross and petrel, 16 species of albatross and 60 species ... of petrel occur within the area of the WCPFC, and are potentially vulnerable to fisheries bycatch ... ), Vulnerable (n =26) and Near Threatened (n = 7). The remaining 30 species are classified by the IUCN as Least ...
Meeting Document : WG-FSA-06/30 : Auteur(s): S. Waugh (New Zealand)
-
An ecosystem-based approach to management: using individual behaviour to predict the indirect effects of Antarctic krill fisheries on penguin foraging
many species within the Antarctic. Despite extensive knowledge of the ecosystem that they occupy, there ... is still incomplete understanding of the links between species and the effect of environmental ... understand the interactions between penguins and krill to determine the indirect effect of krill fisheries on ... is predicted to reduce penguin food intake. Given the documented links between krill and penguins ...
Meeting Document : WG-EMM-03/34 : Auteur(s): S.H. Alonzo, P.V. Switzer and M. Mangel (USA)
-
Penguin demography and winter distributions in the Antarctic Peninsula region
the life history parameters of the breeding biology and ecology of Adélie, gentoo, and chinstrap ... physical processes to their effects on dependent predators in the Southern Ocean. Our most recent results ... present a conceptual model linking increasing temperatures and decreasing sea ice cover in the Antarctic ... Peninsula region to declines in krill and penguin populations. Winter temperatures in the Antarctic ...
Meeting Document : WG-EMM-01/32 : Auteur(s): W. Trivelpiece and S. Trivelpiece (USA)
-
Preliminary analysis of seabird by-catch in the South Georgia icefish fishery
Abstract: We conducted a preliminary analysis on the numbers of birds caught as a bycatch in the ... 92 birds were caught, principally black-browed albatross and white-chinned petrel, with 93% of the ... factors affecting the probability of a haul catching birds, but no significant factors were found that ... could explain the number of birds caught. Differences in the numbers caught in the last three years also ...
Meeting Document : WG-FSA-01/30 : Auteur(s): D.J. Agnew, N. Ansell and J.P. Croxall (United Kingdom)
-
Proposal to allow daytime setting of longlines between 15 and 30 April in the Patagonian toothfish longline fishery in CCAMLR Statistical Division 58.5.2
Abstract: This paper summarises historic effort and seabird bycatch during the pre-season ... extension period (15–30 April) in the Patagonian toothfish longline fishery in CCAMLR statistical division ... 58.5.2. It notes that significant fishing effort has occurred in the pre-season extension period, by ... both of the longline vessels that operate in this fishery and in several seasons, and that no birds ...
Meeting Document : WG-IMAF-11/07 : Auteur(s): I. Hay (Australia)
-
ENCOUNTERS WITH VULNERABLE MARINE ECOSYSTEMS IN THE CONVENTION AREA
Abstract: So far in 2008/09, the Secretariat has received 30 VME-indicator notifications from ... relation to fishing in Divisions 58.4.1, 58.4.2 and 58.4.3b. The notifications resulted in the declaration ... 88.2. In addition, the Secretariat has received 30 notifications of encounters with VMEs during the ... course of research surveys conducted by the U.S.A. in Subarea 48.1 (17 notifications, seafloor depth 92 ...
Meeting Document : WG-EMM-09/08 : Auteur(s): Secretariat
-
A TIME FOR ACTION IN THE MANAGEMENT OF ANTARCTIC KRILL FISHERIES
Abstract: In this paper, ASOC draws CCAMLR’s attention to the most pressing issues in relation to ... the ecosystem-based management of the krill fishery, including the adoption of a conservation measure ... that ensures systematic scientific observer coverage, the development of a coordinated research plan to ... address key scientific uncertainties at the SSMU level in Area 48, and the consideration of feedback ...
Meeting Document : CCAMLR-XXVII/BG/24 : Auteur(s): Submitted by ASOC
-
Recent increase and southern expansion of Adelie penguin populations in the Ross Sea, Antarctica, related to climatic warming
Abstract: The numbers of Adelie penguins Pygoscelis adeliae (Hombron and Jacquinot) in the Ross ... Sea, Antarctica, have increased markedly over the past 10 years. Proportionally, this increase is most ... pronounced in McMurdo Sound, where the species’ breeding range has recently been extended 3 km south to Cape ... Barne (77°35’S) with the re-occupation of a former rookery that was abandoned sometime before the ...
Meeting Document : WG-CEMP-92/22 : Auteur(s): R.H. Taylor and P.R. Wilson (New Zealand)
-
Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in Antarctic waters
Abstract: Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in ... Georgia (N = 267; January/February 1991) and the South Orkneys (N = 44; January/February 1991) and ... polymorphic at the 0.95 criterion: glutamate oxaloacetate transaminase, GOT-I 2.6.1.1; α- glycerophosphate ... 1.15.1.1). Routine scoring of 358 fish at the 16 loci revealed below average levels of genetic variability ...
Meeting Document : WG-FSA-91/22 : Auteur(s): G.R. Carvalho and M. Warren (United Kingdom)
-
Latitudinal variation of demersal fish assemblages in the western Ross Sea
February and March 2004 and 2008 in the Ross Sea, and around seamounts and islands just to the north at 66 ... °S. The distribution and abundance of 65 species collected in these surveys were examined to ... determine if demersal fish communities varied throughout the area, and what environmental factors might ... influence this. Species accumulation with sample frequency did not reach an asymptote, but the rate of new ...
Meeting Document : WG-FSA-10/P03 : Auteur(s): M.R. Clark, M.R. Dunn, P.J. McMillan, M.H. Pinkerton, A. Stewart and S.M. Hanchet