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Monitoring marine debris and its impact on marine living resources in Antarctic waters
actions taken by CCAMLR on marine debris from fishing vessels, especially in relation to compliance with ... beached marine debris, surveys of fishery-related marine debris associated with colonies of marine mammals ... -related debris. During recent years surveys of beached marine debris have been conducted in accordance ... with a standard method. Standard forms have been created for the collection and submission of data from ...
Meeting Document : SC-CAMLR-XX/BG/16 : Автор(ы): Secretariat
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At-sea distribution and prey selection of Antarctic petrels and commercial fisheries
Antarctic petrels was limited but varied greatly among and within years, and was high in some periods during ... krill consumed by Antarctic petrels, and compared this with results from fisheries, as well as from diet ... are to increase in the future, competition with the Antarctic petrel may occur, even with birds ...
Meeting Document : WG-EMM-16/P15 : Автор(ы): S. Descamps, A. Tarroux, Y. Cherel, K. Delord, O.R. Godø, A. Kato, B.A. Krafft, S.-H. Lorentsen, Y. Ropert-Coudert, G. Skaret and Ø. Varpe
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An approach to feedback management (FBM) of the krill fishery based on routine acoustic data collection and intermittent land-based predator studies
. As the trigger level lacks any form of relationship with the actual stock condition this approach is ... strictly not in line with the CCAMLR ecosystem approach to management. FBM has been considered an ... can be integrated with finer-scale knowledge of top predator feeding strategies and updated through ... the proposed framework provides a clear way forward it will take several years to implement fully due ...
Meeting Document : SC-CAMLR-XXXVI/BG/20 : Автор(ы): Delegations of Norway, China and Chile
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Proposal for a longline survey on toothfish in Statistical Subarea 48.6 in 2017/18
. This initial year will be used for exploration with particular emphasis on tagging efforts and habitat ... by WG-SAM 2016, and is being co-ordinated with on-going activities in the same area by Japan and ... South Africa. In future years the aim is to expand the investigation and involve additional ... collaborating members. In 2018 a new Norwegian fishing vessel will be available, equipped with advanced ...
Meeting Document : WG-FSA-17/61 Rev. 1 : Автор(ы): Delegation of Norway
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Models of tag shedding for double tagging as a function of time at liberty and approximate solutions for the single tagging model in CASAL
software applies this model correctly for fish released with a single tag but does not have the facility at ... present to correctly apply the KW model for fish released with two tags. The solution of Dunn et al. (2005 ... single-parameter KW model and 2 and 3 parameter extensions of this model. A Generalized Additive Model ... combined with a sensitivity analysis that varies the KW constant rate parameter in CASAL assessments ...
Meeting Document : WG-SAM-11/12 : Автор(ы): S.G. Candy (Australia)
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OCEANIC CIRCUMPOLAR HABITATS OF ANTARCTIC KRILL
view that krill require high food concentrations, with a distribution often linked to shelves. For a ... , with 70% of the total stock concentrated between 0o and 90oW. Within this Atlantic sector, krill are ... regions of moderate food (0.5-1.0 mg chl a m-3). Advection models suggest some loss northwards from these ... evidence for a compensating southwards migration, with an increasing proportion of krill found south of the ...
Meeting Document : WG-EMM-08/P04 - Abstract : Автор(ы): A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming
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Diet and trophic niche of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
Paraeuchaeta sp., with krill and fish having low IRI (IRI 2.2% and 5.6% overall). However, according to weight ... % respectively), with copepods being a relatively minor constituent of overall diet by weight (9.9%). Piscivory ... superba (14.1%) with some E. crystallophorias (4.8%). were identified in silverfish stomachs. Both distLM ... demonstrated. Silverfish trophic level was 3.5 (larval/post-larval fish) and 4.0 (fish aged 3+). Author(s ...
Meeting Document : WG-EMM-12/54 : Автор(ы): M.H. Pinkerton, J. Forman, S.J. Bury, J. Brown, P. Horn and R.L. O’Driscoll (New Zealand)
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The use of electronic monitoring camera system for the toothfish fishery in CCAMLR Subarea 48.3: a study case to help CCAMLR
by a scientific observer was compared with recorded video footage recorded by 3 different video ... requires considerable effort and cost with mixed results. For example it is not always possible to achieve ... divided in settings and hauling operations where at-sea observations were matched with video footage ...
Meeting Document : WG-FSA-14/27 : Автор(ы): R.A. Benedet (United Kingdom)
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Population structure of the Antarctic toothfish, Dissostichus mawsoni from the Areas 58 and 88 in the Antarctic Ocean based on mitochondrial and microsatellite DNA markers
polymorphism (h =0.109, π =0.0002) with only eight COI haplotypes in 213 individuals, connected only by 1-3 ... mutational steps. Nonetheless, microsatellites showed much higher variation with allelic richness (AR) values ... clarify this, further study with additional polymorphic markers (such as microsatellites) using more ...
Meeting Document : WG-FSA-2019/36 : Автор(ы): H.-K. Choi, J.E. Jang, S.Y. Byeon, S. Chung, S.-G. Choi, H. W. Kim and H.J. Lee
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Estimating food consumption of marine predators: Antarctic fur seals and macaroni penguins
consumed. 3. Assuming a diet mainly of krill Euphausia superba, annual food consumption by Antarctic fur ... seals and macaroni penguins at the island of South Georgia was 3•84 [coefficient of variation (CV) = 0 ... macaroni penguins compete for krill with a commercial fishery, these results provide an insight into the ... consumption of 0?35 (CV = 0?11) and 0?72 (CV = 0?23) G tonnes year –1. Carbon expired as CO 2 was 0?26 (CV = 0 ...
Meeting Document : WG-EMM-02/23 : Автор(ы): I.L. Boyd (United Kingdom)
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