Résultats de la recherche
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Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories
Abstract: 1. This study examined the costs of reproduction in terms of future survival and ... . 2. Population age structures were used, in conjuction with the measured age-specific survival rates ... , to estimate the rate of increase of the population as 10•7% per annum. 3. The average annual survival ... result of pregnancy which accounted for 40–50% of adult female mortality. This effect was greatest in the ...
Meeting Document : WG-EMM-95/26 : Auteur(s): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.
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Recent population estimates and trends in numbers of albatrosses and giant petrels breeding at the sub-Antarctic Prince Edward Islands
group (Marion and Prince Edward islands) was conducted during December 2008, seven years after the ... Abstract: The second mid-summer survey of surface-nesting seabirds at the Prince Edward Island ... have remained stable, whereas the population on Prince Edward Island decreased by 20% from 2001 to 2008 ... (3% per year). The estimate of Indian yellow-nosed albatrosses T. carteri at Prince Edward Island was ...
Meeting Document : WG-EMM-10/P04 : Auteur(s): P.G. Ryan, M.G.W. Jones, B.M. Dyer, L. Upfold and R.J.M. Crawford
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A review of the effectiveness of streamer lines as a seabird by-catch mitigation technique in longline fisheries and CCAMLR streamer line requirements
Paper Title: A review of the effectiveness of streamer lines as a seabird by-catch mitigation ... large degree on the precedent set by CCAMLR in 1991, the streamer line has become the primary, and most ... light of a review of existing literature and available data on the effectiveness of single and paired ... (or multiple) streamer lines. Research to determine the optimal streamer line design and configuration ... end, literature and available data on the effectiveness of streamer lines in reducing seabird ... device at the end to create tension so that the mainline streams directly behind the ship even in ... is being asked to achieve. The tension created by the towed object at the end of a streamer line ... the end to create tension so that the mainline streams directly behind Distance (m) One streamer ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 189–201 : Auteur(s): Melvin, E.F., B. Sullivan, G. Robertson and B. Wienecke
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Distribution and some biological features of icefish (Champsocephalus gunnari) at different life cycle stages in the South Georgia subarea
after 20 cm length reaching and the bottom one at length above 40 cm. Ch.gunnari undertakes vertical ... Abstract: The results of icefish ecology were summarized for the period of above 20 years of ... variability. The functional structure of Ch.gunnari distribution area was described on the basis of juvenile ... fish distribution at different stages of physiological state. Juvenile fish mainly distribute in the ...
Meeting Document : WG-FSA-99/65 : Auteur(s): Zh.A. Frolkina (Russia)
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Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Subarea 48.6
associated life stages of the fish. To this end, we propose to follow the current research style in the ... Abstract: The current season (2014/15) is the final one of the first three-season research which ... began in 2013 in data-poor fisheries. In the present report, the next three-season (2016-18) research ... plan in Subarea 48.6 was revised using the updated CCAMLR C2 and Observer data. The stock sizes for ...
Meeting Document : WG-FSA-15/16 Rev. 1 : Auteur(s): Delegation of Japan
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A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
Paper Title: A statistical method for estimating the level of IUU fishing: application to CCAMLR ... -documented fisheries protection vessel (FPV) cruise data. The method takes explicit account of both ‘seen ... interpreted as zero IUU fishing. For each IUU incident detected by the FPV, a theoretical maximum time over ... to have been observed when the IUU vessel and the FPV vessel were in the same place at the same time ... after the end of the fi rst FPV cruise, but over- laps with the next two FPV cruises. It is missed by ... the area or the planned end of the IUU cruise. Fourthly, and by the same token, it is assumed that ... before the end of its planned cruise duration, earlier than it would have if it had remained undetected ... way, we are in fact saying that if the IUU vessel is encountered close to the end of its planned ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Auteur(s): Agnew, D.J. and G.P. Kirkwood
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Reproductive ecology of Antarctic toothfish, Dissostichus mawsoni (Norman, 1937) (Actinopterygii: Nototheniidae), in the Antarctic waters (SSRUs 58 and 88)
Abstract: Total numbers of Antarctic toothfish collected in the CCAMLR Conservation Zone were 600 ... fish which consist of 306 fish from the 58 area and 294 fish from the 88 area during February through ... higher total length. The ratio of female among the 857 specimens of Antarctic toothfish collected from ... the 58.4.1 area and 88.3 area within the CCAMLR Conservation Zone during December, 2016 to March, 2017 ...
Meeting Document : WG-FSA-18/65 : Auteur(s): J.-W. Kim, S.-G. Choi, S. Chung and D.H. An
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Bioregionalisation and spatial ecosystem processes in the Ross Sea region
Abstract: Since 2005, the Commission for the Conservation of Antarctic Marine Living Resources ... 2009 the CCAMLR Scientific Committee agreed a series of milestones to achieve a representative network ... of MPAs in the CCAMLR Area by 2012. New Zealand has been an active contributor to the CCAMLR spatial ... management planning process, and has declared its interest in progressing spatial marine protection in the ...
Meeting Document : WG-EMM-10/30 : Auteur(s): B.R. Sharp, S.J. Parker, M.H. Pinkerton (New Zealand) (lead authors) also B.B. Breen, V. Cummings, A. Dunn (New Zealand), S.M. Grant (United Kingdom), S.M. Hanchet, H.J.R. Keys (New Zealand), S.J. Lockhart (USA), P. O’B. Lyver, R.L. O’Driscoll, M.J.M. Williams, P.R. Wilson (New Zealand)
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Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)
Paper Title: Evidence to support the annual formation of growth zones in otoliths of Antarctic ... the Ross Sea (CCAMLR Subarea 88.1) have been aged assuming that one translucent zone is formed ... annually in the otoliths of this species. However, no evidence to validate this assumption has previously ... been presented. In the current work, otoliths from four distinct juvenile length-frequency modes were ... assigned to each year class based on the time elapsed between the estimated end of the spawning season ... (2002) recorded some spawning fi sh in May at the end of the 2001/02 fi shing season. Yukhov (1982 ... year or more after tagging. Otoliths from the recaptured fi sh were embed- ded whole and unbaked in ... otolith in the summer immediately after tagging was poorly formed and not apparent in the photographs ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 125–138 : Auteur(s): Horn, P.L., C.P. Sutton and A.L. DeVries
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Information from the organiser
Description / Abstract: The meeting organiser has provided the attached information. ... . At the end of each day participants will leave the Ministry’s premises through the VIP lounge where ... ). After registration participants will be accompanied to “Sala Onofri” where the Workshop takes place ... LOGISTICS INFORMATION SHEET VENUE The Ross Sea region MPA Research and Monitoring Plan Workshop will take ... participants will enter the Ministry of Foreign Affairs and International Cooperation’s premises through the ...
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