Résultats de la recherche
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Influence of sampling protocol on diet determination of gentoo penguins, Pygoscelis papua and Antarctic fur seals, Arctocephalus gazella
Abstract: The influence of two sampling protocols on diet determination of two marine predators ... , the Gentoo penguin Pygoscelis papua and Antarctic fur seal Arctocephalus gazella, was investigated ... . The collection of diet samples on three occasions over a two week period was compared with collecting ... in the mass of food recovered from penguins were found but this was attributed to the mass of penguin ...
Meeting Document : WG-EMM-99/29 : Auteur(s): S.D. Berrow, R.I. Taylor and A. Murray (United Kingdom)
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Measures to avoid bias in abundance estimates of Dissostichus spp. based on tag-recapture data
Abstract: Using the simplest form of an abundance estimator using tag-recapture data, the Lincoln ... -Petersen equation, we summarise the processes that may occur during a tagging program that lead to ... estimate. We also review the methods that have been used in CCAMLR tag recapture to program to mitigate ... depredation rates are a priority for new tagging programs and tag-based assessments. Due to the complexity of ...
Meeting Document : WG-SAM-12/23 : Auteur(s): D.C. Welsford and P.E. Ziegler (Australia)
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An overview of tagging skates (Rajiformes) and CCAMLR skate tagging data
taxonomic and identification problems, this makes the tagging studies undertaken in the CCAMLR area a ... conducted in the CCAMLR area for several years now, only preliminary observations have been presented to ... of the tagging work undertaken under the auspices of CCAMLR in the Southern Ocean with comments on ...
Meeting Document : WG-FSA-13/33 : Auteur(s): S.R. McCully, D. Goldsmith, G. Burt, R. Scott and J.R. Ellis (United Kingdom)
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Networks and tools to enhance collaboration and coordination of observational activities
held between the Southern Ocean Observing System (SOOS) and CCAMLR in April 2018 to: Improve ... understanding of roles and operations between the two communities Identify reciprocal pathways of communication ... workshop was hosted and sponsored by the Australian Research Council’s Antarctic Gateway Partnership and ... SOOS. A full workshop report is available http://soos.aq/resources/reports?view=reports. The workshop ...
Meeting Document : SC-CAMLR-XXXVII/BG/31 : Auteur(s): Submitted by SOOS
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A development of catch per unit effort (CPUE) trends that may be useful in stock assessment for Dissostichus mawsoni in Subarea 48.6
these data to extract annual time series trends that may be of use in the fitting of stock assessment ... models for Dissostichus mawsoni (D. mawsoni) in the area. The entire fishing area in 48.6 which is ... covered by various research blocks is treated as a single area and the developed trends are for the entire ... subarea. The trends from these models reflect stable to a slight increase in CPUE since 2013 which might ...
Meeting Document : WG-SAM-2019/37 : Auteur(s): S. Somhlaba, K. Leach, M. Bergh, T. Okuda, T, IIchi, R. Sarralde and T. Namba
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Global relationships amongst black-browed albatrosses: analysis of population structure using mtDNA and microsatellites
Abstract: The population structure of black-browed (Thalassarche melanophris and T. impavida) and ... five island groups in the Southern Ocean. High levels of sequence divergence were found in both taxa ... (T. impavida). T. melanophris from Campbell Island contain birds from each of the three groups ... markers found similar population structure to the mtDNA analyses in both black-browed and grey-headed ...
Meeting Document : WG-FSA-01/19 : Auteur(s): T.M. Burg and J.P. Croxall (United Kingdom)
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Temperature-dependent growth of Thysanoessa macrura: inter-annual and spatial variability
variability in growth rates of highly abundant zooplankton is critical to predict the impact of climate change ... apart to estimate growth rates of one the most euphausiids in the Southern Ocean, Thysanoessa macrura ... and primary production. Stations within the surveys were grouped by water mass (warm Antarctic ... were not significantly correlated with chl-a concentration. These results suggest that the growth rates ...
Meeting Document : WG-EMM-13/39 : Auteur(s): R.M. Driscoll, C.S. Reiss and B.T. Hentschel (USA)
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Description of fishing gear and procedures of setting / hauling of Spanish longline system for toothfish in CCAMLR area
, detailed information on the fishing gear and the procedures for setting/hauling has not been described in ... detail and is not currently included the CCAMLR gear library. In order to contribute to the assessment of ... the Korean flagged vessels. Author(s): T. Jung and H.J. Choi (Republic of Korea) Title ...
Meeting Document : WG-FSA-11/53 : Auteur(s): T. Jung and H.J. Choi (Republic of Korea)
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Champsocephalus gunnari Lönnberg distribution on South Georgia shelf from inventory survey data collected by AtlantNIRO
Abstract: A total of 8 inventory trawling surveys of the bottom fish were made on South Georgia ... survey dates. Most dense Ch.gunnari aggregations observed were mainly in the northern, north-western and ... north-eastern parts of the island shelf. Near Shag Rocks they could be seen in separate years. Year-to ... of the fish were obviously governed by the intensity of fishing. Author(s): I.A. Trunov (Russia ...
Meeting Document : WG-FSA-92/04 : Auteur(s): I.A. Trunov (Russia)
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Species profiles: Target species and common by-catch species
which are or have been subject to exploitation at one time in the Southern Ocean. It is envisaged that ... CCAMLR will benefit considerably from the project both in terms of its publicity and perception in the ... 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 : Auteur(s): K.-H. Kock, C.D. Jones and D. Welsford