Resultados de la búsqueda
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VME detection thresholds: provision of a beta version of a R library to compute detection probabilities and preliminary results on the case of the sea pens (Pennatulacea) of the CCAMLR Division 58.4.4b
Abstract: CCAMLR has defined Vulnerable Marine Ecosystems (VME) detection thresholds based on the ... CCAMLR SAM Working Group 2018. However, despite the important level of the catches, no VME detection ... threshold triggering out the establishment of an immediate fishing exclusion zone have been reached. Here ... elements of a study centered on the case of the sea pens, and based on the data collected in the 58.4.4b ...
Meeting Document : WG-FSA-2019/46 : Autor(es): A. Martin and M. Eléaume
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SO-AntEco: Contributing information and scientific advice on benthic biodiversity in the South Orkney Islands (Domain 1) region
with an international team of scientists from the Scientific Committee for Antarctic Research (SCAR ... will contribute to an updated MPA Report for the South Orkney Islands, as well as the SOISS MPA review ... . The expedition took place on board the BAS research ship RRS James Clark Ross in early 2016. The focus ... deposit feeders. Substantial differences in the abundance of VME taxa were found between two sampling ...
Meeting Document : WG-EMM-17/37 : Autor(es): M.J. Brasier, S.M. Grant, P.N. Trathan, L. Allcock, O.S. Ashford, H. Blagbrough, A. Brandt, B. Danis, R. Downey, M. Eléaume, P. Enderlein, C. Ghiglione, O. Hogg, K. Linse, M. Mackenzie, C. Moreau, L. Robinson, E. Rodríguez, V. Spiridonov, A. Tate, M. Taylor, C. Waller, H. Wiklund and H.J. Griffiths
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
for two species of seabird. This was the first submission from this site. Marine mammal entanglement ... Abstract: The current status of national programmes on monitoring of marine debris and their ... impact on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... Database contains data from 13 sites, most within Area 48. There are 4 active sites that have data for more ...
Meeting Document : SC-CAMLR-XXVI/BG/10 : Autor(es): Secretariat
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A PRELIMINARY BALANCED TROPHIC MODEL OF THE ECOSYSTEM OF THE ROSS SEA, ANTARCTICA, WITH EMPHASIS ON APEX PREDATORS
Abstract: We report on the development of a mass balanced carbon-budget trophic model of the Ross ... Sea as a step towards investigating ecosystem effects of the fishery for Antarctic toothfish ... (Dissostichus mawsoni). The model has 30 trophic groups representing all the major biota of the Ross Sea. Many ... toothfish. A survey of the available literature and both published and unpublished data provided an initial ...
Meeting Document : WG-EMM-08/42 : Autor(es): M.H. Pinkerton, J.M. Bradford-Grieve and S.M. Hanchet (New Zealand)
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Potentially commercial invertebrates on Ob Bank: Moroteuthis ingens (Oegopsida) and Paralomis aculeata (Anomura) (Division 58.4.4)
Antarctic are now an object of intense interest for the scientific and fishery organizations of the member ... for Lepidonotothen squamifrons, the frequency of their occurrence being 25 to 30%. Considering, that a ... Convention Area. The squid Moroteuthis ingens has been constantly present in bottom trawl catches on Ob Bank ... during aimed fishery for Lepidonotothen squamifrons. At maximum, the proportion of squid in the total ...
Meeting Document : WG-FSA-96/15 : Autor(es): Pshenichnov, L.K.
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Small scale krill surveys: simulations based on observed euphausiid distributions
the effects of krill swarm orientation and shape on the success of two proposed survey designs. The ... Abstract: An observed distribution of Meganyctiphanes norvegica aggregations is used to examine ... .) of mean krill density varies inversely with mean density, and is lowest for the survey design ... utilising parallel transects set at right angles to the long axis of the aggregations. Calculations based on ...
Meeting Document : WG-KRILL-91/19 : Autor(es): D.J. Agnew (Secretariat) and S. Nicol (Australia)
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A description of current metrics and methods used in providing advice to the Scientific Committee on setting catch limits and assessing research plans in research blocks in exploratory fisheries and closed areas
Abstract: In recent years there have been a number of changes in the criteria, metrics and ... summary table using the most recent data available and to detail the methods used for local biomass ... estimation (SC-CAMLR-XXXIV, paragraph 3.232 (i)). This paper provides an updated summary table, with a full ... advice to the Scientific Committee on setting catch limits and assessing research plans in research ...
Meeting Document : WG-SAM-16/18 Rev. 1 : Autor(es): CCAMLR Secretariat
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
fragments continue to be the main entangling materials. For the first time an Adélie penguin was reported ... at King George Island for the fourth consecutive year. There are now 4 sites that have data for more ... Abstract: The current status of national surveys on monitoring of marine debris and their impact ... on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ...
Meeting Document : SC-CAMLR-XXIII/BG/11 : Autor(es): Secretariat
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Analysis of variability of krill size and fish by-catch in Japanese krill fishery based on scientific observer data
Bayesian model. For both krill length and bycatch fish number, vessel sample size show marked effects on CV ... cluster units (i.e., year, sub-area, vessel, cruise, and haul) based on a state-space model, separating ... Abstract: To estimate optimal relative sample size of scientific observer data collected on ... sample size by using variance component analysis. Observer datasets on Japanese krill fishery from 1995 ...
Meeting Document : WG-EMM-12/68 : Autor(es): T. Okuda and M. Kiyota (Japan)
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Update of ongoing work on age and growth of Antarctic toothfish (Dissostichus mawsoni) from Division 58.4.1 by Spain
Abstract: We present preliminary results on age and growth of Dissostichus mawsoni for the third ... season (2015/16) of the Spanish research fishing in the 58.4.1 Division obtained for growth rings on ... length-age pair values are: L∞: 208.2, k: 0.074 and t0: 0.564 for females; L∞: 173, k: 0.089 and t0 ... :-0.1771 for males; and L ∞: 226.4, k: 0.05673 and t 0:-0.745 all combined. Values differ with the previous ...
Meeting Document : WG-FSA-17/66 : Autor(es): L.J. López-Abellán, M.T.G. Santamaría, R. Sarralde and S. Barreiro