Resultados de la búsqueda
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Fishing gear, marine debris and oil associated with seabirds at Bird Island, South Georgia, 2002/03
Abstract: This report describes and quantifies occurrences of fishing gear, marine debris and oil ... associated with seabirds at Bird Island, South Georgia from 1 April 2002 to 31 March 2003. It is the tenth ... such annual report. As in most previous years, more items of fishing gear (mostly longlining gear) and ... , though numbers of both decreased slightly since last year. The quantity of fishing gear associated with ...
Meeting Document : SC-CAMLR-XXII/BG/09 : Autor(es): Delegation of the United Kingdom
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Anthropogenic feather soiling, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 2000/01
fishing gear associated with seabirds at Bird Island, South Georgia. In this, the eighth year of ... at South Georgia. Author(s): Delegation of the United Kingdom Title: Anthropogenic feather soiling ... Abstract: This report describes and quantifies occurrences of oil, paint, marine debris and ... standardised recording, an unprecedented quantity of hooks (both with and without long-line attached)and ...
Meeting Document : SC-CAMLR-XX/BG/07 : Autor(es): Delegation of the United Kingdom
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A life table for female Antarctic fur seals breeding at Cape Shirreff, Livingston Island
juvenile survival, age at first reproduction, and resight probabilities. Longitudinal histories of presence ... and pregnancy of adult females (aged by cementum annuli) were used to estimate age-specific survival ... -2005. These data are used to construct an age-dependent life table for female fur seals breeding at ... Cape Shirreff and to estimate net reproductive rate, mean generation time and the intrinsic rate of ...
Meeting Document : WG-EMM-06/39 : Autor(es): M.E. Goebel, B.I. McDonald, J.D. Lipsky (USA), V.I. Vallejos, R.A. Vargas, O. Blank (Chile), D.P. Costa (USA) and N.J. Gales (Australia)
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Beach litter accumulation and retention at sub-Antarctic Marion Island: trends in relation to longline fishing activity
retention study. Author(s): Delegation of South Africa Title: Beach litter accumulation and retention at ... Abstract: Standardised beach litter surveys at subantarctic Marion Island for the period 1996 to ... 1998 are reported, and compared to surveys done in 1984 and 1995, prior to the onset of unregulated ... accumulation studies at designated beaches. Styrofoam pieces and plastic bottles showed the largest increases ...
Meeting Document : CCAMLR-XVII/BG/25 : Autor(es): Delegation of South Africa
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Growth models for D. eleginoides for the Heard Island plateau region (Division 58.5.2) calibrated from otolith-based length at age data and validated using mark-recapture data
Abstract: Length-at-age data for the Patagonian toothfish (Dissostichus eleginoides) caught by ... (VP) of sampling lengths. A segmented linear trawl fishing selectivity function was used where the ... upper-arm was estimated, as described elsewhere, from comparisons of longline LF samples to that for ... trawls for seasons where both fishing methods were used. Due to the small number of fish in the aged ...
Meeting Document : WG-FSA-05/64 Rev. 1 : Autor(es): S.G. Candy, T. Lamb, A.J. Constable and R. Williams (Australia)
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Marine debris surveys at Bird Island, South Georgia 1990 to 1995
. Between 1990 and 1995 beached debris was monitored at Bird Island, South Georgia. This was part of a ... in the proportion of Antarctic fur seal Arctocephalus gazella entangled in this material at South ... Abstract: The Antarctic marine environment has relatively few direct sources of man-made marine ... debris; however, there is concern over the dangers posed to wildlife by increasing amounts of such debris ...
Meeting Document : CCAMLR-XV/BG/05 : Autor(es): Delegation of the United Kingdom
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Seabird by-catch in the Patagonian toothfish longline fishery at the Prince Edward Islands: 1998–1999
the same vessel, using the same gear design and at the same time of year, show marked decreases in ... Ocean. Continued application of mitigation measures (use of streamer lines, setting lines at night or in ... aboard all 11 sanctioned fishing trips, representing a fishing effort of 5.1 million hooks. This is 19 ... % more than the number of hooks set in 1997-98, but only 79 seabirds (150/0 of the total killed in 1997 ...
Meeting Document : WG-FSA-99/42 Rev. 1 : Autor(es): P.G. Ryan and B.P. Watkins (South Africa)
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MULTIPLE INDICATORS SUGGEST A STRONG ECOSYSTEM ANOMALY AT SOUTH GEORGIA IN 2009
marine ecosystem at South Georgia is the focus of a major research effort and consequently there are many ... local oceanographic and atmospheric conditions. Much of the observed variability in various fitness ... metrics for birds, seals and fish seems to be connected with the availability of Antarctic krill ... , Euphausia superba, which is a major prey species for many vertebrate populations at South Georgia. The ...
Meeting Document : WG-EMM-09/23 : Autor(es): S. Hill, M. Belchier, M. Collins, S. Fielding, E. Murphy, P. Trathan, H. Venables and C. Waluda (United Kingdom)
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Report from CCAMLR observers at Indian Ocean Tuna Commission Scientific Committee and Commission Meetings
Abstract: This paper provides a report from the two Australian CCAMLR observers at the Third ... Session of the Indian Ocean Tuna Commission meetings, Scientific Committee and Commission, that were held ... at Mahé, Seychelles from 7 to 12 December 1998. Author(s): CCAMLR Observer (Australia) Title ... : Report from CCAMLR observers at Indian Ocean Tuna Commission Scientific Committee and Commission Meetings ...
Meeting Document : CCAMLR-XVIII/BG/32 : Autor(es): CCAMLR Observer (Australia)
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Linking predator and prey behaviour: contrasts between Antarctic fur seals and macaroni penguins at South Georgia
combination of concurrent at sea (predator observations, net hauls and multi-frequency acoustics), and land ... -based (animal tracking and diet analysis) techniques, we examined variability in the foraging ecology of ... these sympatric top predators during the austral summer and autumn of 2004. Krill availability derived ... occurred in 80% of fur seal diet samples, with fish remains in 37% of samples. Penguin diets contained the ...
Meeting Document : WG-EMM-10/P07 : Autor(es): C.M. Waluda, M.A. Collins, A.D. Black, I.J. Staniland and P.N. Trathan