Search results
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Climate change and precautionary spatial protection: seasonal sea ice
little changed by human activities, particularly by the impacts (either direct or indirect) of marine ... currently covered by seasonal sea ice (as of 2011) could be considered for creation as restricted use Marine ...
Meeting Document : WS-MPA-11/18 : Author(s): P.N. Trathan and S.M. Grant (UK)
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IDENTIFICATION OF DATA QUALITY METRICS FOR TAGGING DATA SELECTION
Abstract: The suite of data quality metrics introduced by Middleton & Dunn (2008) is examined ... rates of recapture of tags released by the trip, and above-median tag recapture rates by the trip.A ...
Meeting Document : WG-SAM-09/19 : Author(s): D.A.J. Middleton and A. Dunn (New Zealand)
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Changes in the fish biomass around Elephant Island (Statistical Subarea 48.1) from 1976 to 1996
two years of the fishery. Results of bottom trawl surveys conducted by Germany in the vicinity of ... , Gobionotothen gibberifrons, Chaenocephalus aceratus have been considerably affected by fishing. Stocks of G ... . gibberifrons and C. aceratus had apparently recovered to a large extent by the second half of the 1980s. C ...
Meeting Document : WG-FSA-97/27 : Author(s): Kock, K.-H.
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Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey
-exploitation survey estimate of kril1 biomass are extended to incorporate most of the amendments specified by ... . Three alternative fishing seasons are considered. The model extensions requested by the Third Meeting ... fishing mortality, as specified by the Fourth Meeting, results in marked reductions in the probabilities ...
Meeting Document : WG-KRILL-93/42 : Author(s): D.S. Butterworth, G.R. Gluckman, R.B. Thomson and S. Chalis (South Africa)
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First CCAMLR Performance Review
review of the organisation during 2008. CCAMLR’s decision provided for the review to be carried out by a ... panel appointed by the Commission composed of nine persons as follows: four internationally recognised ... Environmental Protection; an expert nominated by CCAMLR non-governmental observers; and three external experts ...
Page : Site Section: The Organisation
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Proposal for a winter longline survey of Antarctic toothfish in Subarea 88.1 SSRUs B–C in 2016
Ross Sea region to investigate spawning dynamics of Antarctic toothfish, as requested by the Scientific ... Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea by collecting biological samples from a range of ... objectives are to investigate the potential dispersion of eggs and larvae by studying the characteristics of ...
Meeting Document : WG-SAM-15/47 : Author(s): S.J. Parker, S.M. Hanchet and R.J.C. Currey (New Zealand)
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The CCAMLR Decision Rule, strengths and weaknesses
ecosystem-based fisheries management, the implications of climate change should be considered by its working ... by considering hypothetical, future changes in the fishery- stock interactions and the stock ... climate change induced variation in productivity, highlights a sensitivity that should be considered by ...
Meeting Document : SC-CAMLR-38/15 : Author(s): Delegation of the United Kingdom
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Near-shore acoustic surveys for Antarctic krill at South Georgia, January 2004
surveyed by large research vessels, and to survey responsively in areas where adult Macaroni penguins ... patterns in density but may have been exacerbated by the presence of a large iceberg (40 miles by 30 miles ... areas by large ocean-going research vessels will provide a more comprehensive understanding of the prey ...
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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INDICATIVE ESTIMATES OF BIOMASS AND YIELD OF WHITSON’S GRENADIER (M. WHITSONI) ON THE CONTINENTAL SLOPE OF THE ROSS SEA IN SUBAREAS 88.1 AND 88.2
ratio of the by-catch limit for macrourids to the catch limit for Dissostichus spp. in Division 58.5.2 ... bottom trawl surveys (IPY_CAML and BioRoss) have recently been carried out by New Zealand on parts of the ... those recorded for M. carinatus on Banzare Bank. Because the strata covered by the New Zealand surveys ... area were made by extrapolating the more recent IPY-CAML survey catch rates across the entire slope ...
Meeting Document : WG-FSA-08/32 : Author(s): S.M. Hanchet, D. Fu and A. Dunn (New Zealand)
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Estimating fishing gear selectivity for trawlers using length-frequency data from concurrent commercial trawl and longline fishing for Patagonian toothfish in Division 58.5.2 and the ratio of their hazard functions
assuming that, for the upper range of lengths, fish are fully selected by longliners but not by trawlers ... by a technique used to model grouped survival data. The hazard function relates to the event of a ... function to give the GLMM formulation. Random effects of haul identifier and ‘season by length bin’ were ...
Meeting Document : WG-FSA-06/35 : Author(s): S.G. Candy (Australia)