Search results
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Population dynamics of black-browed and grey-headed albatrosses Diomedea melanophrys and D. chrysostoma at Campbell Island, New Zealand, 1942–96
Abstract: The numbers of Black-browed Albatrosses Diomedea melanophrys and Grey-headed ... increasing slightly at average rates of 1.1% and 2.1% per annum at two colonies. The long-term downward trend ... in numbers of the Grey-headed Albatross has continued into the 1990s, averaging annually between 3.0 ... Albatrosses show a typical biennial pattern of breeding. Both show low survival from fledging to first ...
Meeting Document : WG-FSA-04/58 : Author(s): S.M. Waugh (New Zealand), H. Weimerskirch (France), P.J. Moore and P.M. Sagar (New Zealand)
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On possible impact of new continuous krill fishing technology on juvenile fish and larvae
powerful pumping system for continuous pumping the catch out of the trawl bag. It was discussed the ... potential threats of new technology to Antarctic marine ecosystem. It was shown that application of this ... fishing technology may result in considerable by-catch of the juvenile fish and larvae in krill fishery ... . Author(s): S.M. Kasatkina Title: On possible impact of new continuous krill fishing technology on ...
Meeting Document : WG-FSA-06/23 : Author(s): S.M. Kasatkina
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Identification and speciation of Antarctic skates
Abstract: Two regions of mitochondrial (mt) DNA: cytochrome b and cytochrome c oxidase subunit 1 ... (COI) were sequenced in 9 species of Bathyraja skates from the Southern Oceans and New Zealand. Based ... Bathyraja n. sp. cf eatonii. There was no sequence divergence among samples of B. n. sp. “dwarf” from the ... Ross Sea and South Atlantic Ocean, the DNA sequence divergences are indicative of differentiation among ...
Meeting Document : WG-FSA-07/27 : Author(s): P.J. Smith, C.D. Roberts, A.L. Stewart, M. McVeagh and C.D. Struthers (New Zealand)
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A single-area stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in SSRU 88.2E for the 2004/05 season
excluding preventing very low estimates of stock size. Monte-Carlo Markov Chain (MCMC) diagnostics suggested ... some evidence of non-convergence, particular in the declining right-hand limb of the fishing ... selectivity parameters. MCMC estimates of initial (equilibrium) spawning stock abundance (B0) were very ... , were estimated to be 670 t. However, as the fishing selectivity was estimated to be to the right of the ...
Meeting Document : WG-FSA-05/31 : Author(s): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)
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An assessment of seabird interactions with longlining operations for Dissostichus eleginoides around South Georgia, March–May 1997
interactions with seabirds, and the effectiveness of measures employed to mitigate seabird mortality. In this ... setting operations and all but one during April, giving an average mortality rate of 0.018 birds/1000 ... hooks, and 0.099 birds/1000 observed hooks. Mortalities consisted of nine white-chinned petrels, two ... into the side of the vessel. Few birds were generally seen following the vessel during setting ...
Meeting Document : WG-FSA-97/09 : Author(s): Ashford, J.R., Croxall, J.P.
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2007 assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
Abstract: The ASPM assessment of the Prince Edward Islands toothfish resource by Brandão and ... updated to take account of further catch, GLM standardised CPUE and catch-at-length information that has ... 48.3 are used. The resource is estimated to be at about 37% of its average pre-exploitation level in ... terms of spawning biomass. It is suggested that it would be prudent to restrict annual legal catches to ...
Meeting Document : WG-FSA-07/34 Rev. 1 : Author(s): A. Brandão and D.S. Butterworth (South Africa)
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Time series of Drake Passage Oscillation Index (DPOI) from 1952 to 2005, Antarctica
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... , between Rio Gallegos (51°32’S, 69°17’W), Argentina, and Base Esperanza (63°24’S, 56°59’W), at the tip of ...
Meeting Document : WG-EMM-05/17 : Author(s): M. Naganobu and K. Kutsuwada (Japan)
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Exchange of wandering albatrosses Diomedea exulans between the Prince Edward and Crozet Islands: implications for conservation
Abstract: Exchange of 61 wandering albatrosses Diomedea exulans has been recorded between the ... . Most movements of banded birds (57) have been westwards, from the Crozets to the Prince Edwards. In all ... albatrosses of the two island groups form a metapopulation that ideally should be conserved as a single unit ... . Its is suggested that France and South Africa collaborate through the Agreement on the Conservation of ...
Meeting Document : WG-EMM-03/41 : Author(s): J. Cooper (South Africa) and H. Weimerskirch (France)
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The diet of the Antarctic fur seal Arctocephalus gazella at the Danco Coast, Antarctic Peninsula
Abstract: The diet of non-breeding male Antarctic fur seals Arctocephalus gazella was ... investigated at the Danco Coast, Antarctic Peninsula, by the analysis of 31 and 149 scats collected from ... the most frequent prey and constituted the bulk of the diet. The importance of the remaining taxa ... . Among fish, Channichthyids constituted the bulk of the diet with Chionodraco rastrospinosus and ...
Meeting Document : WG-EMM-02/9 : Author(s): R. Casaux, A. Baroni and A. Ramón (Argentina)
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Management plan for Site of Special Scientific Interest No. 36 – Eastern Dallmann Bay
Abstract: Management at Eastern Dallmann Bay aims to: • avoid degradation of, or substantial risk ... to, the values of the Area by preventing unnecessary human disturbance; • allow scientific research ... ; • allow visits for management purposes in support of the aims of the management plan. Author(s ... ): Submitted by the USA Title: Management plan for Site of Special Scientific Interest No. 36 – Eastern ...
Meeting Document : WG-EMM-02/57 : Author(s): Submitted by the USA