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Seabird by-catch in the Patagonian toothfish longline fishery at the Prince Edward Islands: 2001–2002
Abstract: This paper summarises seabird bycatch during 1 July 2001-30 June 2002 of sanctioned ... sanctioned fishing trips. Fishing effort was 2.9 million hooks, a 36% reduction on the number of hooks set in ... 2000/2001 (Ryan & Watkins 2001). The number of seabirds reported killed by the observers was three ... Africa) Title: Seabird by-catch in the Patagonian toothfish longline fishery at the Prince Edward ...
Meeting Document : WG-FSA-02/17 : Автор(ы): B.P. Watkins (South Africa)
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Beach litter accumulation at sub-Antarctic Marion Island – 1998/99
Abstract: As part of an ongoing study on Subantarctic Marion Island, we report on beach litter ... accunmulation for the year May 1998- April 1999. The amount of debris found in both annual and monthly ... and proportion of styrofoam items. Plastic items were most numerous this season, while styrofoam ... effect and high turnover rate, highlights the dangers of single annual surveys. Author(s): Delegation of ...
Meeting Document : CCAMLR-XVIII/BG/22 : Автор(ы): Delegation of South Africa
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Seabird by-catch in the Patagonian toothfish longline fishery at the Prince Edward Islands: 1997–1998
observers aboard all 11 sanctioned fishing trips, representing a fishing effort of 4.3 million hooks. This ... is 13% more than the number of hooks reported set in 1996-97, but total effort probably declined ... during 1997-98 as a result of a decrease in the number of unsanctioned vessels operating in the area ... . Observers reported 498 birds of five species killed. White-chinned Petrels Procellaria aequinoctialis ...
Meeting Document : WG-FSA-98/42 : Автор(ы): P.G. Ryan and M.G. Purves (South Africa)
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Within season feedback management system – a pro forma for discussion at WG-EMM 2015
Abstract: We provide a document describing ideas regarding the development of a feedback ... discussion at WG-EMM 2015 Microsoft Word File: emm-15-04.docx Approval: Approved Secretariat Workflow ...
Meeting Document : WG-EMM-15/04 : Автор(ы): C.S. Reiss, G.M. Watters, J. Hinke and D. Kinzey (USA)
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FISHING INDUSTRY POLLUTION OBSERVATIONS AND ASSOCIATED MARINE MAMMAL ENTANGLEMENT RECORDS AT SOUTH GEORGIA, SUMMER 1996/97
Abstract: From various locations on or near the mainland of South Georgia, between November 1996 ... and January 1997, 13 observations of entanglement of marine mammals (one southern elephant seal ... . Of the fur seals five (42%) were female (three adult, two juvenile) and seven (58%) were male (one ... . Marine debris was collected from a 1 km stretch of beach on the south coast of South Georgia between 24 ...
Meeting Document : CCAMLR-XVI/BG/26 : Автор(ы): Delegation of the United Kingdom
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ABUNDANCE ESTIMATES FOR CRABEATER, WEDDELL AND LEOPARD SEALS AT THE ANTARCTIC PENINSULA AND IN THE WESTERN WEDDELL SEA (90º - 30º W, 60º - 80º S)
Abstract: This paper presents spatial modelling based abundance and density estimates of pack-ice ... . Trathan (United Kingdom) Title: ABUNDANCE ESTIMATES FOR CRABEATER, WEDDELL AND LEOPARD SEALS AT THE ...
Meeting Document : WG-EMM-PSW-08/06 : Автор(ы): J. Forcada and P.N. Trathan (United Kingdom)
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Inter-annual variability in krill density at South Georgia: 1997–2012
, maintaining very large numbers of predators, and fluctuations in their abundance can affect the overall ... structure and functioning of the ecosystems. The inter-annual variability in the abundance and biomass of ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ... Box (WCB) survey area to the north of South Georgia, Southern Ocean. Krill targets were identified in ...
Meeting Document : WG-EMM-13/14 : Автор(ы): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)
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Preliminary trials to test mitigation measures aimed at reducing Macrourus spp. by-catch on autoliners targeting D. eleginoides with longlines in the CCAMLR Convention Area
vessel (14/0 EZ J-type hooks and squid bait respectively). Catch per unit effort (CPUE) of Macrourus spp ... in catch rates of Macrourus spp due to bait was significant, but not for hook-type. Bait type had ... similar effects on the catch rates of Dissostchus spp. and of all other by-catch species combined. However ... significant. In order for the benefits of mackerel bait in reducing macrourid (and other species) bycatch to ...
Meeting Document : WG-FSA-07/33 : Автор(ы): R.E. Mitchell, D.J. Agnew, T. Carruthers, J. Clark, L. Ross (United Kingdom) and J. van Heerden (South Africa)
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Seabird by-catch in the Patagonian toothfish longline fishery at the Prince Edward Islands: 1999–2000
Abstract: This paper summarises seabird bycatch during the fourth year (July 1999-June 2000) of ... sanctioned fishing trips. Fishing effort was 7.4 million hooks, a 45% increase on the number of hooks set in ... 1998199. Observers reported 268 birds of six species killed. White-chinned Petrels Procellaria ... that reported in either 1996/97 or 1997/98. The absolute number of birds killed increased more than ...
Meeting Document : WG-FSA-00/30 : Автор(ы): P. Ryan and B. Watkins (South Africa)
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Age-structured production model for toothfish at South Georgia
through the introduction of a new annual selectivity function, modelled as a unimodal, algebraically ... decaying function of age, with three easily interpretable parameters. When only a single selectivity curve ... reaches preset parameter boundaries. With one or two parameters of the selectivity estimated only once the ... the CPUE very closely. Convergence problems were noted for the highly parameterised versions of this ...
Meeting Document : WG-FSA-SAM-05/18 : Автор(ы): A. Payne, G.P. Kirkwood, R. Hillary and D.J. Agnew (United Kingdom)
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