Resultados de la búsqueda
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A noise removal algorithm for acoustic data with strong interference based on post-processing techniques
Abstract: The use of fishing-vessel-based acoustic data has been recognized by SC-CAMLR as an ... important way to estimate the distribution and relative abundance of Antarctic krill (Euphausia superba ... ), yet the quality and even the utility of the data may be seriously degraded by interferences due to the ... lack of synchronization device for the acoustic instruments equipped on some of the vessels. A simple ...
Meeting Document : SG-ASAM-15/02 : Autor(es): X. Wang, X. Zhao and J. Zhang (People’s Republic of China)
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Delivering enhanced data access through CCAMLR–SOOS collaboration
CCAMLR in April 2018. The full workshop report is available at http://soos.aq/resources/reports?view ... =reports. All parties at the workshop agreed to the importance of strengthening the collaborative efforts ... each one can contribute to the mission of the other. A core objective of this workshop was to identify ... recommendations for consideration by SC-CAMLR. Author(s): Delegations of the USA, Belgium and SOOS Title ...
Meeting Document : SC-CAMLR-XXXVII/BG/19 : Autor(es): Delegations of the USA, Belgium and SOOS
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Propuesta de la Federación de Rusia sobre el establecimiento de un criterio uniforme para la designación de AMP en el Área de la Convención
regarding the establishment of MPAs in the Convention Area, this paper considers procedural and ... Abstract: Based on an analysis of the legal and scientific aspects of the current situation ... implementation measures to manage a single process for the scientifically based designation of MPAs and to ... regulate their operation by the CCAMLR Commission. Author(s): Delegation of the Russian Federation Title ...
Meeting Document : CCAMLR-38/30 : Autor(es): Делегация Российской Федерации
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Seabird by-catch by tuna longline fisheries off southern Africa, 1998–2000
Abstract: The incidental mortality of seabirds in tuna longline fisheries is estimated for the ... bycatch differed regionally in relation to the numbers of birds attending vessels. In international waters ... seabirds are killed annually in South Africa’s EEZ, of which 70% are albatrosses. Confidence in these ... estimates is low, given the small proportion of effort observed, but it is clear that urgent steps are ...
Meeting Document : WG-FSA-01/28 : Autor(es): P.G. Ryan, D.G. Keith and M. Kroese (South Africa)
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Small scale krill surveys: simulations based on observed euphausiid distributions
the power of surveys to reliably detect changes in mean density indicate that with probability of Type ... changes of 40% if c.v.’s are as high as those obtained in the simulations. Author(s): D.J. Agnew ... .) of mean krill density varies inversely with mean density, and is lowest for the survey design ... the effects of krill swarm orientation and shape on the success of two proposed survey designs. The ...
Meeting Document : WG-KRILL-91/19 : Autor(es): D.J. Agnew (Secretariat) and S. Nicol (Australia)
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Length-at-age juvenile Patagonian toothfish Dissostichus eleginoides
Abstract: The fishery for Patagonian toothfish is one of the most valuable in the CCAMLR Area ... length density of juvenile toothfish in the catches had a clearly defined polymodal distribution. The age ... . Age based models are used to assess the status of the stocks of this species. Although age can be ... of each fish was estimated from the otoliths and the distribution of these ages matched closely the ...
Meeting Document : WG-FSA-01/16 : Autor(es): J. Ashford (USA), I. Everson (UK), C. Jones and S. Bobko (USA)
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Species profiles: Target species and common by-catch species
CCAMLR will benefit considerably from the project both in terms of its publicity and perception in the ... which are or have been subject to exploitation at one time in the Southern Ocean. It is envisaged that ... context of international organisations. This paper provides a brief outline of the work proposed, work ... priorities, possible participation, length of the project and costs incurred. Author(s): K.-H. Kock, C.D ...
Meeting Document : WG-FSA-16/51 : Autor(es): K.-H. Kock, C.D. Jones and D. Welsford
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No boundaries for whales interacting with fishing activities targeting Patagonian toothfish (Dissostichus eleginoides)
Patagonian toothfish (Dissostichus eleginoides) have been documented as a severe issue in the Crozet EEZ ... photographs from the French vessels fishing in the Crozet EEZ as well as on Del Cano rise in the Southern ... . Over the 2009 – 2019 period, and depredation rates were estimated to be around 8% in the Del Cano ... since the late 90’s. Estimating depredation rates allows to correct catches and therefore to model the ...
Meeting Document : WG-FSA-2019/54 : Autor(es): N. Gasco, P. Tixier, F. Massiot-Granier, C. Péron and R. Sarralde
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Chemical marking protocols for Antarctic starry skate age validation
(Amblyraja georgiana). This study is a fast, simple ‘add-on’ that will complement the aims of the skate ... skates brought into the boat for tagging during the 2019-20 skate tagging programme in the Ross Sea ... . Injections will be made intra-muscularly in the wings and/or the lateral tail base using a 1 ml auto-injector ... a selection of caudal thorns removed and frozen, and returned to Wellington for lab analysis. The ...
Meeting Document : WG-SAM-2019/10 : Autor(es): M. Francis and S. Parker
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DRAFT SOFTWARE USER GUIDE FOR: ICESCAPE: INTEGRATING COUNT EFFORT BY SEASONALLY CORRECTING ANIMAL POPULATION ESTIMATES
(2004) for Antarctic land-breeding predators. The software, which was developed as a suite of routines ... in the R language for statistical computing (R Development Core Team 2008), aims to adjust raw count ... accessing breeding sites often lead to counts of land-breeding predators being taken at suboptimal times in ... Abstract: The ICESCAPE Software Users Guide (Appendix 1) describes a parametric bootstrap ...
Meeting Document : WG-SAM-09/16 : Autor(es): J. McKinlay, C. Southwell and R. Trebilco (Australia)