Résultats de la recherche
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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 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): C.M. Waluda, M.A. Collins, A.D. Black, I.J. Staniland and P.N. Trathan
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Marine debris collected at Cape Shirreff during the Antarctic season 2000/01
plastic bands were found at the site, which represent 34% of all plastic items. From these bands, 40 were ... Abstract: The eighth annual beach debris survey was carried out at Cape Shirreff (62º 28' S ... categories: Plastic, metal, glass, and paper. A total of 1,774 articles was studied, with a weight of 124, 5 ... item with 1,736 articles which represent 97.86% of the total. The other items consisted of metal, 15 ...
Meeting Document : SC-CAMLR-XX/BG/25 : Auteur(s): Delegation of Chile
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Revised CASAL model for D. eleginoides with updated biological parameters at Division 58.4.4b
structured CASAL model was built to assess the stock of D. eleginoides at the research block 1 of Division ... have large impact on estimated B0 at the block 1 of Division 58.4.4b. On the other hands, the degree of ... ogice) of Dissostichus eleginoides for Division 58.4.4b were updated based on the data gathered up to ... to conduct an exploration of the impact of different scenarios of depredation and IUU in order to ...
Meeting Document : WG-SAM-2019/30 : Auteur(s): T. Okuda and F. Massiot-Granier
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Predation on fish by the southern elephant seal, Mirounga leonina, at King George Island, South Shetland Islands, as reflected by stomach lavage
movements at sea of southern elephant seals tracked from King George Island we suggest that while myctophids ... Abstract: Between november and february of the years 1993/94, 1995/96, 1996/97, 1997/98, 1998/99 ... and 1999/2000, one hundred and fifty three specimens of southern elephant seals, Mirounga leonina ... , were stomach lavaged at King George Island in order to analyse their diet. The two major prey types ...
Meeting Document : WG-EMM-01/58 : Auteur(s): G.A. Daneri and A.R. Carlini (Argentina)
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Krill population dynamics at South Georgia 1991–1997, based on data from predators and nets
) of 3 predator species breeding at South Georgia and 12 weeks of sampling (n = 10 252 krill) from ... in 1991 and 1994, both years of low krill biomass at South Georgia. In both of these years large ... Abstract: Central to understanding krill population dynamics is knowledge of their population ... structure. To examine this we used length-frequency distributions from 142 weeks of sampling (n= 23996 krill ...
Meeting Document : WS-AREA 48-98/15 : Auteur(s): K. Reid, J. Watkins, J. Croxall and E. Murphy (UK)
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Reproduction in the mackerel icefish (Champsocephalus gunnari) at South Georgia
macroscopic examination of gonads. Evidence in support of the hypothesis that a proportion of mature fish fail ... to spawn was obtained. Histological examination of ovaries indicates that some ova were undergoing ... regression and resorption at least two months prior to the normal spawning date. It is concluded that the ... underlying cause is probably due to a shortage of krill, an important dietary item for Champsocephalus ...
Meeting Document : WG-FSA-91/07 : Auteur(s): I. Everson (United Kingdom), K.-H. Kock (Germany), G. Parkes (United Kingdom), D. Cielniaszek and J. Szlakowski (Poland)
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About unidentified fishing gear at CCAMLR Fishing Area 88.1С
Abstract: The CCAMLR Member States were informed by the circular letter of CCAMLR No COMM CIRC 17 ... /100 that the fishing vessel "Sunstar" (flying the flag of the Republic of Korea) picked up ... the unidentified fishing gear at CCAMLR Fishing Area 88.1С on November 23, 2017 which was set before ... starting of fishing period 2017/2018. The State Agency of Fisheries of Ukraine informs about activities of ...
Meeting Document : CCAMLR-38/BG/49 : Auteur(s): Delegation of Ukraine