Resultados de la búsqueda
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Linking acoustic scattering coefficient to krill fishery data: feasibility of estimating krill abundance using fishing survey
Abstract: Antarctic krill (Euphausia superba Dana) is a key species in the Southern Ocean ... fisheries. In this paper, using the multi-frequency acoustic data and the fishery data, the relationship ... between the acoustic scattering coefficient of krill swarms and catch, catch per unit effort (CPUE), catch ... per unit fishing area (CPUA) were studied for better understanding the feasibility of assessing krill ...
Meeting Document : WG-EMM-17/44 : Autor(es): T. Wang, G.P. Zhu, J.F. Tong and L.X. Xu
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INFORME DE LA REVISIÓN INDEPENDIENTE DE LOS SISTEMAS DE GESTIÓN DE DATOS DE LA CCRVMA
as part of the on-going work of the Commission to ensure that CCAMLR’s information assets are ... data access and use, and in an efficient manner to authorised parties. The review focused on ... determining risks that are relevant to the organisation’s information assets, assessing system controls, and ... mitigating identified risks using an appropriate international standard as a benchmark. The review ...
Meeting Document : CCAMLR-XXX/05 : Autor(es): Secretariat
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Proposed initiative to contribute to Ross Sea region MPA research and monitoring activities using pop-up satellite tags and otolith chemistry on Dissostichus mawsoni
Abstract: An initiative to support research and monitoring of the Ross Sea Region Marine ... (Dissosticus mawsoni) within the RSRMPA is proposed. The objectives of this initiative are twofold. The first ... is to deploy a total 20 pop-off satellite tags (PSAT) on juvenile toothfish within the General ... Protection Zone (GPZ(i)), as well as adult toothfish the northern seamounts associated with the Pacific ...
Meeting Document : WS-SM-18/16 : Autor(es): C.D. Jones
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Hidroacustics survey around Elephant Island (Subarea 48.1) and South Orkney Islands (Subarea 48.2), austral summer 2016
Abstract: This paper submits the results of the acoustic cruise made in the austral summer of ... 2016. The survey delivers the bottom bathymetry, the geographic distribution of krill concentrations ... , and the presence of fish shoals in 1,500 nautical miles over the shelf and the continental slope (100 ... as those of mackerel icefish (Champsocephalus gunnari), the latter representing the most abundant ...
Meeting Document : WG-FSA-16/21 : Autor(es): N.A. Landeros and P.M. Arana
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Selectivity and two biomass measures in an age-based assessment of Antarctic krill (Euphausia superba)
selectivity to investigate the population dynamics of Antarctic krill (Euphausia superba) near the Antarctic ... Peninsula. The data were from surveys conducted by the U.S. Antarctic Marine Living Resources Program around ... the South Shetland Islands from 1992 to 2011. Two indices of krill biomass based on (1) trawl-net ... samples and (2) hydroacoustic sampling were combined with length-compositions from the nets. Sixteen model ...
Meeting Document : WG-EMM-15/P07 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss
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Age-structured production model for toothfish at South Georgia
Abstract: The ASPM model used by Agnew and Kirkwood (2004, WG-FSA-04/82) has been modified ... through the introduction of a new annual selectivity function, modelled as a unimodal, algebraically ... was fitted for all years, the change to the new selectivity function improved the fit to length ... frequency data achieved last year, but the fit was still poor. The fit to the CPUE was also poor. With ...
Meeting Document : WG-FSA-SAM-05/18 : Autor(es): A. Payne, G.P. Kirkwood, R. Hillary and D.J. Agnew (United Kingdom)
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Hydrometeorological condition features in South Orkneys subarea in February–March 1996
daily indeses of atmospheric circulation for the period February-March 1996, calculated average values ... the period, which along with atmospheric circulation data allow to determine atmospheric circulation ... features over ASA area at the summer period. There are obtained data on thermochaline conditions on the ... polygon near South Orkneys. There are calculated and presented maximum temperature distribution on the ...
Meeting Document : WG-EMM-96/35 : Autor(es): Polischuk, M.I., Shnar, V.N.
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Vessel notification
States notify CCAMLR of the intention of their vessels to enter, exit, or move between subareas and/or ... divisions of the Convention Area, was carried out to assess how such a system might strengthen the CCAMLR ... System of Inspection. The study has found that the modified Hail system could strengthen the System of ... . Several modifications are proposed to the existing CCAMLR provisions for advance notification of fishing ...
Meeting Document : CCAMLR-XIV/13 : Autor(es): Secretariat
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INVESTIGATING LENGTH AT MATURITY OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) BASED ON SCIENTIFIC OBSERVERS’ DATA
Abstract: Through generalised linear models, the gonadosomatic index of Antarctic toothfish in ... the Ross Sea region was shown to vary with latitude, length and month. Limitations of the scientific ... difference in the GSI values of fish at different maturity stages. However these studies were carried out on ... a limited number of fish, most of which were from the southern area, therefore not on obviously ...
Meeting Document : WG-FSA-08/48 : Autor(es): S. Mormede, S. Parker and P. Grimes (New Zealand)
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Beach debris survey, Signy Island, South Orkney Islands, 2006/07
Abstract: During the 2006/07 austral summer the seventeenth annual beach debris survey was ... March from the three study beaches. The debris was counted, measured and classified by type, material ... , mass and size categories. A total of 50 items weighing 7.6 kg were collected. The number of items found ... was greater than the total found during the previous season, although the total mass of the waste ...
Meeting Document : SC-CAMLR-XXVI/BG/19 : Autor(es): Delegation of the United Kingdom