Résultats de la recherche
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Size variations associated with abundance changes in juvenile Notothenia rossii, observed at Potter Cove, South Shetland Islands, since the end of the fishery in the area
thought to be caused by local factors, but related with the operations of the commercial fishery during ... rossii, in association with changes in the size and age structure of the juvenile population. Mean ... lengths increased in correlation with poor recruitment to inshore waters and sharply decreased as stronger ... with similar ecological habits in the fjords, showed little variations around the expected overall mean ...
Meeting Document : WG-FSA-93/13 : Auteur(s): E.R. Marschoff and E.R. Barrera-Oro (Argentina)
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Report on progress with the Southern Ocean Observing System (SOOS)
months, with a deadline of 1 October. A final version of the plan will be circulated before the end of ... Abstract: Abstract This Background Paper reports on progress with the Southern Ocean Observing ... the year. A SOOS Secretariat will be hosted by Australia to aid implementation. Details of the ... progress with the Southern Ocean Observing System (SOOS) Approval: Approved ...
Meeting Document : CCAMLR-XXIX/BG/16 : Auteur(s): A joint submission by SCAR and SCOR
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Proposal for an acoustic krill biomass survey in CCAMLR Subarea 48.1 in relation to the hydrological environment and in conjunction with carbon cycling and temperature adaptation experiments of krill and salps
will be conducted in conjunction with a detailed description of the biological and physical environment ... CCAMLR division 48.1 during April 2018. The survey will be part of a larger research cruise (PS112 ... ensure they align with CCAMLR standard procedures and are comparable with previous krill biomass surveys ... conjunction with carbon cycling and temperature adaptation experiments of krill and salps Microsoft Word File ...
Meeting Document : WG-EMM-17/39 : Auteur(s): B. Meyer, L. Suberg, S. Fielding, O.R. Godø and C. Reiss
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Adélie penguin diet: a pilot study directly comparing data from stomach flushing with faecal DNA analysis
composition and mass. Analysing prey DNA in faeces may be a useful, less invasive, approach to complement ... /January) in 2014/15 and 2015/16. Each method produced a similar pattern of penguin diet, with a shift from ... some additional information to be collected (e.g. prey size and meal mass). However, faecal prey DNA ... range of data obtained for CEMP. Further comparison between methods with additional penguin species ...
Meeting Document : WG-EMM-18/29 : Auteur(s): B. Deagle, J. McInnes, L. Emmerson, M. Dunn, S. Adlard and C. Waluda
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Integrated weight longlines with paired streamer lines – best management practice for demersal longline fisheries: preliminary results
conclude that IW longlines deployed with paired streamer lines is the best mitigation practice available ... ) and integrated weight longlines (IW-50 g/m) with and without paired streamer lines (PS) in seabird ... demonstrated that IW longlines reduce risk to seabirds by minimizing the distance astern that birds have access ... to sinking baits (~50% reduction). This study and our data from 2000 and 2002, also clearly show that ...
Meeting Document : WG-FSA-06/52 : Auteur(s): K. Dietrich, E. Melvin and L. Conquest (USA)
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Information on the marine scientific research expeditions with RV Polarstern in the 2018/19 season
117 and PS 118) with the German RV Polarstern, which have some relevance for CCAMLR and which are ... planned to be carried out in the wider Weddell Sea area south of 60° S in the 2018/19 Antarctic season ... expeditions and previous Polarstern cruises can be obtained from the AWI home page (www.awi.de). Author(s ... ): Delegation of Germany Title: Information on the marine scientific research expeditions with RV Polarstern in ...
Meeting Document : SC-CAMLR-XXXVII/BG/02 : Auteur(s): Delegation of Germany
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An assessment of seabird interactions with longlining operations for Dissostichus eleginoides around South Georgia, March–May 1997
interactions with seabirds, and the effectiveness of measures employed to mitigate seabird mortality. In this ... with extra weights on the line and all deck-lights extinguished. Data were recorded during hauling ... using a randomised cluster sampling method, developed to allow representative data to be collected when ... 100% observer coverage could not be achieved. Thirteen seabird mortalities were recorded, all during ...
Meeting Document : WG-FSA-97/09 : Auteur(s): Ashford, J.R., Croxall, J.P.
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Genetic identification of fish caught as by-catch in the Antarctic krill fishery and comparison with observer records
48.1, 48.2 and 48.3) were identified by DNA barcoding and results compared with morphological ... barcoding markers allowed these specimens to be assigned to species level. The diversity of fish identified ... by observers (5 families; 8 species) was considerably lower than with DNA barcoding (7 families; 20 ... species). The impact of potential taxonomic misidentifications on fish bycatch datasets needs to be ...
Meeting Document : WG-EMM-18/30 : Auteur(s): A. Polanowski, J. Clark, D. Maschette, D. Welsford and B. Deagle
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Fishing equipment, marine debris and hydrocarbon soiling associated with seabirds at Bird Island, South Georgia, 2006/07
reflecting discard of used baited hooks at sea. Entanglements continue to be observed with hooks being ... associated with seabirds at Bird Island, South Georgia from 1 April 2006 to 31 March 2007. It is the ... longline fishing gear) were found in association with wandering albatrosses than with any other species ... . The total number of items encountered (n =170) increased after a recent short-term decline with large ...
Meeting Document : SC-CAMLR-XXVI/BG/18 : Auteur(s): Delegation of the United Kingdom
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PREDICTING SPECIES DISTRIBUTIONS FROM MUSEUM AND HERBARIUM RECORDS USING MULTI-RESPONSE MODELS FITTED WITH MULTIVARIATE ADAPTIVE REGRESSION SPLINES
Abstract: Current circumstances — that the majority of species distribution records exist as ... presence-only data (e.g. from museums and herbaria), and that there is an established need for predictions ... of species distributions — mean that scientists and conservation managers seek to develop robust ... models (GAMs) that are commonly and successfully used in modelling species distributions, but has ...
Meeting Document : WS-VME-09/P02 : Auteur(s): Elith, J., Leathwick, J.