Search results
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A drone-based Antarctic fur seal (Arctocephalus gazella) census of the St. Telmo Islands, South Shetland Archipelago
to obtain in remote polar environments. The standard approach for income breeding pinnipeds, such as ... population dynamics in the South Shetland archipelago are largely driven by two breeding colonies, Cape ... 333, which represents a 79% reduction since the most recent survey in 2008, and a 90% reduction from ... the peak of recent production in 1997. Given the historical importance of Cape Shirreff and St Telmo ...
Meeting Document : WG-EMM-2019/65 : Author(s): D.J. Krause and M.E. Goebel
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Draft Revised Management Plan for ASPA 149, Cape Shirreff and San Telmo Island, Livingston Island, South Shetland Islands
intersessional contact group formed during the 2004 meeting of the CEP/ATCM. Since a marine area is included in ... (Conservation Measure 91-02 (2000)). The draft management plan for ASPA 149 was prepared in accordance with the ... Management Plans for Antarctic Specially Protected Areas. In preparing the draft plan, a detailed assessment ... visit was made to the site in February 2001 to verify information and to ensure that the information in ...
Meeting Document : WG-EMM-04/8 : Author(s): Delegations of Chile and USA
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longline
depredated resource can be especially challenging when depredation occurs on fish in the marine environment ... accounting for spatial variations of depredation levels. In the first method, we used fishing data from 6 525 ... the two species co-occurred around vessels. The second method was new in a way that we used the ... situations reported elsewhere in the world. In addition to providing methodology insights that could be used ...
Meeting Document : WG-FSA-14/10 : Author(s): N. Gasco, P. Tixier, G. Duhamel and C. Guinet (France)
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Catch removals due to killer and sperm whale interactions across sub-Antarctic fisheries
Abstract: Fisheries are human activities that alter resource availability for species in marine ... investigated the extent of this conflict in multiple commercial Patagonian toothfish (Dissostichus eleginoides ... associated ecosystems. Paired with increasing trends in depredation levels being detected in some areas, this ... study highlights the large scale significance of the depredation issue in subantarctic regions, where ...
Meeting Document : WG-FSA-2019/33 : Author(s): P. Tixier, P. Burch, F. Massiot-Granier, P. Ziegler, D. Welsford, M.-A. Lea, M.A. Hindell, C. Guinet, S. Wotherspoon, N. Gasco, C. Péron, G. Duhamel, R. Arangio, R. Tascheri, S. Somhlaba and J.P.Y. Arnould
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Proposal for further trials aimed at reducing Macrourus spp. by catch on autoliners targeting D. eleginoides with longlines around South Georgia
Abstract: IW longlines are effective in reducing the bycatch of birds in toothfish fisheries, but ... . We intend to trial two alternative configurations against IW systems in 48.3 in the 2007/08 fishing ...
Meeting Document : WG-FSA-07/30 : Author(s): Delegation of the United Kingdom
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The use of Antarctic shags to monitor coastal fish populations: evaluation and proposals after five years of test of a standard method
. Likewise, the history of the development of this theme in relation to the EMM and FSA Working Groups of ... and quantitatively the diet of shags and can reflect differences in fish availability between seasons ... and areas. Considering the similarities in foraging strategies and reproductive behaviour between ... Antarctic and sub-Antarctic shags, the methodology proposed could readily be used with other shag species in ...
Meeting Document : WG-EMM-03/5 : Author(s): R. Casaux and E. Barrera-Oro (Argentina)
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Documentation for the CCAMLR survey database and length-density analysis
because of the increasing quantity and diversity of survey data and their importance in the assessments of ... . While appropriate in earlier years, this procedure constricted the type of survey data that could be ... stored in the CCAMLR database and placed limitations of their interpretation. The Data Centre’s extensive ... work done, the structure of the new survey database, and the steps in the length-density analysis. The ...
Meeting Document : WG-FSA-00/11 : Author(s): Secretariat
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Target strength of mackerel icefish (Champsocephalus gunnari) from a scattering model
derived from the model results: 148)(log4.7010-=LTSwhere L is the fish total length in cm and is ... applicable to fish of length 26–35 cm. Existing in situ TS estimates are for smaller fish (16–26 cm) and ... hence are not directly comparable, but extrapolation of the in situ and model results reveal a large ... different in TS (6 dB at 26 cm) between the two datasets. Author(s): G. Macaulay (New Zealand) Title ...
Meeting Document : SG-ASAM-09/06 : Author(s): G. Macaulay (New Zealand)
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THE AUTOLINE SYSTEM – AN UPDATED DESCRIPTIVE REVIEW OF THE METHOD WITH RECOMMENDATIONS TO CLARIFY CCAMLR CONSERVATION MEASURES REGULATING LONGLINE FISHERIES WITHIN THE CONVENTION AREA
Autoline Vessels Fishing for Toothfish in CCAMLR Waters. Additional information is included listing and ... assessing the option of simplifying this Measure in a similar manner to that successfully implemented in the ... exploratory fisheries in Subareas 88.1 and 88.2. Author(s): J.M. Fenaughty (New Zealand) Title: THE AUTOLINE ...
Meeting Document : WG-FSA-08/60 : Author(s): J.M. Fenaughty (New Zealand)
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Hydrographic conditions around Elephant Island during austral spring 1994
Abstract: Based on a data set sampled during November/December 1994 in the Elephant Island ... colder than in previous years in the Elephant Island Plateau Region. Since the data base available to the ... , it is recommended to do a cooperative analysis of data sampled throughout the years in the Elephant ...
Meeting Document : WG-EMM-95/16 : Author(s): Stein, M.