Résultats de la recherche
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Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates
Paper Title: Quantifying vessel performance in the CCAMLR tagging program: spatially and ... tagging program is critical to the successful management of a number of toothfish fisheries in Antarctica ... . In particular, tag-detection rates are directly linked to stock size estimated from the tag data in ... an integrated stock assessment. Previous attempts to assess the relative reliability of vessels in ... yields (Mormede et al., 2011a, 2011b; Mormede, 2011). In those analyses, the assumed values of ... mortality of tagged fish and the subse- quent detection rate of recaptured tagged fish are important input ... parameters. For example, under- estimating the tag-detection rate of the fleet will result in an ... overestimate of the stock biomass. The assessment model assumes that all vessels have equal tag-detection ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Auteur(s): Mormede, S. and A. Dunn
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Commercial fishing vessels as research vessels in the Antarctic – requirements and solutions exemplified with a new vessel
Paper Title: Commercial fishing vessels as research vessels in the Antarctic – requirements and ... solutions exemplified with a new vessel Abstract / Description: The climate-induced changes presently seen ... in the ecosystems of the Antarctic region require a precautionary approach with respect to the human ... as adequate monitoring, to avoid unintended impacts on the harvested stocks and the associated ... The Antarctic region is vulnerable to human activity. In particular, under the impact of global ... ., 2013). Krill plays a key role in Antarctic marine ecosystems (Siegel, 2010). The combined impact of ... fishing activity and climate change might have unfavourable effects on the ecosystem, for exam- ple ... . 21 (2014): 11–17 11 CommerCIal fIshIng vessels as researCh vessels In the antarCtIC ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 11–17 : Auteur(s): Godø, O.R., C. Reiss, V. Siegel, J.L. Watkins
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Distribution and relative abundance of juvenile icefish (Champsocephalus gunnari) from a trawl survey of the South Georgia shelf in June–July 1985
) from a trawl survey of the South Georgia shelf in June–July 1985 Abstract / Description: A trawl ... survey of the distribution and relative abundance of juvenile icefish (Champsocephalus gunnari) in South ... Georgia waters was carried out in June–July 1985. Shelf and slope areas extending from the 12 nautical ... mile protected zone around South Georgia to the 500 m isobath were sampled with a specially designed ... ABUNDANCE OF JUVENILE ICEFISH (CHAMPSOCEPHALUS GUNNARI) FROM A TRAWL SURVEY OF THE SOUTH GEORGIA SHELF IN ... the distribution and relative abundance of juvenile icefish (Chamsocephalus gunnari) in South ... Georgia waters was carried out in June-July 1985. Shelf and slope areas extending from the 12 Nautical ... mile protected zone around South Georgia to the 500 m isobath were sampled with a specially designed ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 55-63 : Auteur(s): Boronin, V.A., G.P. Zakharov and V.P. Shopov
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Factors that may influence the accuracy of abundance estimates from CCAMLR tag-recapture programs for Dissostichus spp. and best practice for addressing bias
Paper Title: Factors that may influence the accuracy of abundance estimates from CCAMLR tag ... -recapture programs for Dissostichus spp. and best practice for addressing bias Abstract / Description: The ... Lincoln-Petersen equation, the simplest form of an abundance estimator using tag-recapture data, was used ... programs. The methods that have been used in CCAMLR tag-recapture programs to mitigate such biases, or to ... through the population, the overlap between the release site of individual fish and the exact location ... estimates of population size. In the CCAMLR area, tagging programs have existed in some fisheries for ... vessels commenced in the fishery at Heard Island and the McDonald Islands (Division 58.5.2) in 1998 ... (Williams et al., 2002) and at South Georgia (Subareas 48.3) and in the Ross Sea (Subarea 88.1) in 2000 ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Auteur(s): Welsford, D.C. and P.E. Ziegler
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Letter from the Co-conveners
Description / Abstract: This is a letter by the Co-conveners regarding the WG-SAM-19 meeting ... . Please note that the deadline for comments on the draft agenda is 30 April 2019. ... Dear WG-SAM participant, The 2019 meeting of ... the Working Group on Statistics, Assessments and Modelling (WG-SAM) is to be held in Concarneau ... (France) from Monday 17 to Friday 21 June 2019. We have reviewed the recommendations from the Scientific ... Committee and developed an agenda based on the workplan and newly requested topics (SC-CAMLR-XXXVI/BG/40 ...
Document : Site Section: Meetings
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Letter from the Convener
Description / Abstract: This is a letter by the Convener regarding the WG-EMM-19 meeting. Please ... note that the deadline for comments on the draft agenda is 6 May 2019. ... WG-EMM participant, The 2019 meeting of the Working Group on Ecosystem Monitoring and Management ... /13, taking into account that in 2018 the Scientific Committee identified the development of advice ... for management of krill resouces to inform the review of Conservation Measure (CM) 51-07 as a ... priority, the agenda of this year’s meeting includes a Focus Topic on krill management (See draft agenda ...
Document : Site Section: Meetings
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Letter from the Co-conveners
Description / Abstract: This is a letter from the Co-conveners, Dr C. Darby (UK) Dr C. Jones (USA ... ), to participants of the 2018 meeting of the Workshop for the Development of a Dissostichus mawsoni ... Dear Colleagues, During the 2017 SC-CAMLR deliberations, the Scientific Committee noted the lack ... of a regional stock hypothesis for Dissostichus mawsoni in Area 48. The lack of a hypothesis ... complicates the evaluation of proposals investigating D. mawsoni life history, as well as spatial planning ... , in this area. It subsequently welcomed the offer from Germany to host a CCAMLR Workshop for the ...
Document : Site Section: Meetings
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Information from the organiser
Description / Abstract: The meeting organiser has provided the attached information. ... 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 ... ). After registration participants will be accompanied to “Sala Onofri” where the Workshop takes place ... . At the end of each day participants will leave the Ministry’s premises through the VIP lounge where ...
Document : Site Section: Meetings
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Letter from the Convener
Description / Abstract: This is a letter by the Convener regarding the SG-ASAM-2019 meeting. ... CIRC 19/34 and SC CIRC 19/43, the meeting of SG-ASAM will be held in Bergen, Norway, from 26 to 30 ... August 2019. The priority items that we will consider will be the results from the two large-scale ... krill surveys that were conducted in 2019 (the Area 48 multinational survey and the Area 58 Japanese ... survey). We will also review the ongoing collection and analysis of krill acoustic data from fishing ...
Document : Site Section: Meetings
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Book review – Biogeographic Atlas of the Southern Ocean
Paper Title: Book review – Biogeographic Atlas of the Southern Ocean Abstract / Description ... -Coudert (Eds). 2014. Biogeographic Atlas of the Southern Ocean. Scientific Committee on Antarctic Research ... by the Scientific Committee on Antarctic Research, Scott Polar Research Institute, Lensfield Road ... , Cambridge, CB2 1ER, United Kingdom (www.scar.org). Over the past few decades the field of biogeo graphy ... in geographic space and geological time on a global scale. The Southern Ocean is still a vast ... frontier of discovery, with many parts of it largely unexplored, but the recently published Biogeo ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 45-46 : Auteur(s): Reid, K.