Search results
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DEFINING TAG RATES AND TACS TO OBTAIN SUITABLY PRECISE ABUNDANCE ESTIMATES FOR NEW AND EXPLORATORY FISHERIES IN THE CCAMLR CONVENTION AREA
catches (TACs) that would be expected to yield a pre-specified precision in a resultant abundance estimate ... . With respect to the tagging-based abundance estimator, we use the Lincoln-Petersen method and derive a ... formula that gives the expected coefficient of variation of the abundance estimate in terms of the number ... of releases and recaptures, which can in turn be expressed in terms of the tagging rate per tonne ...
Meeting Document : WG-SAM-08/06 : Author(s): R.M. Hillary (UK)
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Near-shore acoustic surveys for Antarctic krill at South Georgia, January 2004
the surveys was to determine krill density near shore, in regions that have not traditionally been ... to be well suited as an acoustic survey platform. The echosounder transducers were deployed on a ... removable scaffold-tubing frame midships. With sails up the yacht had good roll stability and useable data ... were collected in seastate 6 with winds up to 30 knots and swells of approximately 2.5 m at survey ...
Meeting Document : WG-EMM-04/35 : Author(s): A.S. Brierley, P.N. Trathan, J. Poncet and A. Morton (United Kingdom)
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Continuation in the 2014/15 season of the research plan initiated in 2012/13 for stocks of Dissostichus spp. in Divisions 58.4.1 and 58.4.2
for the vessel039;s operations, fulfilling Spain039;s commitment to return to the same fishing areas in order ...
Meeting Document : WG-SAM-14/09 : Author(s): Delegation of Spain
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Identifying marine protected areas (MPAs) in data-poor regions to conserve biodiversity and to monitor ecosystem change: an Antarctic case study
is needed for identifying areas in data-poor regions that would enable the objectives to be achieved ... identify the scale and placement of MPAs, aiming to be the minimum spatial requirements that would satisfy ... in the long term. We elaborate a procedure that would satisfy the first stage of identifying a RSMPA ... with the physical heterogeneity of habitats within those provinces. Ecological theory is then used to ...
Meeting Document : WS-MPA-11/05 : Author(s): A.J. Constable, B. Raymond, S. Doust, D. Welsford (Australia), P. Koubbi (France) and A.L. Post (Australia)
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Feedback management through effort regulation
time and space restriction to the fishery, an approach that can be adjusted as needed to fit similar ... -01) will be revised in 2016. The trigger level is not related to the status of the krill stock and ... the predators that depend on it. Progressing the development of an operational FBM system in ... accordance with the Convention has been set as a high priority by CCAMLR. There are currently three FBM ...
Meeting Document : SC-CAMLR-XXXV/BG/29 Rev. 1 : Author(s): Delegation of Norway
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Stability of trip selections for the assessment of Antarctic toothfish in the Ross Sea
were used to define a range for various data quality metrics considered to be informative with respect ... period indicate that additional, historical trips may be added to the data set as new tagging data become ... datasets were selected comprising trips with high (above median) rates of recovery of previously released ... to tagging data. Other trips with data quality metric values within these ranges were added to the ...
Meeting Document : WG-FSA-10/26 : Author(s): D.A.J. Middleton (New Zealand)
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Vessel notification
with the performance of a satellite-based vessel monitoring system (Inmarsat-C/GPS), which is also being considered ... with the performance of a satellite-based vessel monitoring system (Inmarsat-C/GPS), which is also being considered ...
Meeting Document : CCAMLR-XIV/13 : Author(s): Secretariat
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CONTINUING CCAMLR’S FIGHT AGAINST IUU FISHING FOR TOOTHFISH EXECUTIVE SUMMARY OF THE REPORT BY TRAFFIC INTERNATIONAL AND WWF AUSTRALIA
with WWF Australia that presents a trade-based assessment of toothfish catch for the period of 2003 ... -2007 with a view to provide an indication of the extent of the IUU catch. The report highlights that in ... %, compared to CCAMLR’s average estimate of 10% of total landings. This suggests that CCAMLR may be ... executive summary of a recent, soon to be published report produced by TRAFFIC International in conjunction ...
Meeting Document : CCAMLR-XXVII/BG/38 : Author(s): Submitted by IUCN
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Using data recorded during commercial krill fishing in Feedback Management
Abstract: Feedback Management (FBM) requires adequate data that can be collected with a minimum ... high krill concentrations. It is suggested that combining their approach with a conventional design ... of extra effort. Traditional survey practice requires a pre determined survey design that support ... , Niklitschek and Skaret (2015) (EMM-16 doc) utilize spatial statistics to show that fisheries acoustic data ...
Meeting Document : WG-EMM-16/74 : Author(s): O.R. Godø, G. Skaret and E. Niklitschek
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Seabird mortality and the Falkland Islands trawling fleet
on the Patagonian Shelf, north of the Islands. Birds were killed after being dragged underwater by the warp cable ... surface, and are subsequently hauled onboard. In over 600 observed hauls in 2001-03 no birds were observed ... Shelf, north of the Islands. Birds were killed after being dragged underwater by the warp cable, while ... , and are subsequently hauled onboard. In over 600 observed hauls in 2001-03 no birds were observed to become impaled ...
Meeting Document : WG-FSA-03/91 : Author(s): B.J. Sullivan, T.A. Reid, L. Bugoni and A.D. Black (United Kingdom)