Search results
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A krill–predator–fishery model for evaluating candidate management procedures
Abstract: The CCAMLR has recognised the need to subdivide the precautionary krill catch limit for ... Statistical Area 48 amongst smaller spatial units in order to minimize the localized depletion of krill in ... been defined, and six candidate procedures for subdividing the catch have been identified. It is now ... well as fishery performance. This evaluation must be conducted in the context of considerable ...
Meeting Document : WG-EMM-05/13 : Author(s): G.M. Watters, J.T. Hinke (USA), K. Reid and S. Hill (United Kingdom)
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30 years of krill fisheries management – challenges remain
frequently. The reproduction and survival of krill are significantly affected by sea ice cover. This is of ... concern since key spawning, recruitment and nursery areas of krill are located in the Southwest Atlantic ... sector, an area that has been warming rapidly, resulting in a reduction in the extent and duration of ... winter sea ice. CCAMLR needs to maintain a precautionary approach to krill fisheries management. The ...
Meeting Document : CCAMLR-XXX/BG/19 : Author(s): Submitted by ASOC
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Marine pollution
2.5.1 Effectiveness of CCAMLR to implement measures to provide for protection of the Southern ... Ocean and Antarctic environment from the impacts of vessels engaged in harvesting, research ... Recommendation Responsible body Activities to date Status 2.5.1.1 The RP encouraged data on discarded and lost ... fishing gear to be collected and reported on more routinely. SCIC/ Commission In 2009, the Scientific ...
Page : Site Section: The Organisation
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Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48
limit on krill (Euphausia superba) in Statistical Area 48. The measure also asks the Scientific ... Committee to provide the Commission with advice on how precautionary limits could be applied to subareas or ... evaluated relative to six criteria: 1) the degree to which information on biological relationships is ... considered, 2) the cost of data collection, 3) the reliability of required information, 4) the ease of ...
Meeting Document : WG-KRILL-92/16 : Author(s): G. Watters and R.P. Hewitt (USA)
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Responding to climate change: Adélie penguins confront astronomical and ocean boundaries
latitudes for the remainder of the year. The latitudinal range of the Adélie penguin spans ~22o. Penguins ... from northern colonies may not migrate, but due to the high latitude of Ross Island colonies, these ... penguins almost certainly undertake the longest migrations for the species. Previous work has suggested ... Island, Ross Sea, the southernmost colonies for any penguin. We acquired data from 3-16 Geolocation ...
Meeting Document : WG-EMM-10/P11 : Author(s): G. Ballard, V. Toniolo, D.G. Ainley, C.L. Parkinson, K.R. Arrigo and P.N. Trathan
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Discussion on recent results from an integrated assessment of Antarctic krill (Euphausia superba) in Subarea 48.1
Abstract: This is a companion paper to Kinzey et al. (2014), who extended the integrated stock ... were pooled at annual, seasonal, and monthly time scales. The data were from research cruises ... conducted by Germany (RMT8 net samples from 1981 to 1989), the U.S. AMLR Program (IKMT net samples from 1992 ... from three of the models provide a robust picture of changes in the krill population. An annual model ...
Meeting Document : WG-EMM-14/35 : Author(s): G.M. Watters, C.S. Reiss and D. Kinzey (USA)
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Infectious diseases of Antarctic penguins: current status and future threats
Abstract: The Antarctic Treaty area will become increasingly frequented by both researchers and ... tourists in the future. Three main areas are likely to be impacted by this increase in use and by ... alterations due to climate change: the Western Antarctic Peninsula, the Ross Sea, and coastal regions of East ... infectious diseases. The number of investigations into infectious diseases of penguins has continued to ...
Meeting Document : WG-EMM-14/53 : Author(s): W.W. Grimaldi, P.J. Seddon, P.O.B. Lyver, S. Nakagawa and D.M. Tompkins (New Zealand)
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AN ECOSYSTEM-BASED MANAGEMENT PROCEDURE FOR KRILL FISHERIES: A METHOD FOR DETERMINING SPATIALLY-STRUCTURED CATCH LIMITS TO MANAGE RISK OF SIGNIFICANT LOCALISED FISHERIES IMPACTS ON PREDATORS.
single-species assessment of yield, and a method for implementing the procedure. The decision rule for ... setting catch limits for a given harvest strategy has a straight forward expression of the target ... conditions to be achieved and the uncertainties that need to be managed and does not assume an understanding ... of predator-prey dynamics beyond that evident in the data. It is a natural extension of the current ...
Meeting Document : WG-SAM-08/16 : Author(s): A. Constable and S. Candy (Australia)
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Uncertainty in acoustic surveys of Antarctic krill
acoustic surveys. The variance in system calibration with a standard sphere was evaluated in relation to ... bias was investigated by comparing the theoretical and actual target strength (TS) values of four ... different standard spheres with the results of a calibration by self-reciprocity (Demer and Hewitt ... , submitted). Combining the results of these experiments, the accuracy and precision of a system calibration ...
Meeting Document : WG-EMM-95/72 : Author(s): Demer, D.A.
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An ecosystem-based management procedure for krill fisheries: a method for determining spatially-structured catch limits to manage risk of significant localised fisheries impacts on predators
single-species assessment of yield, and a method for implementing the procedure. The decision rule for ... setting catch limits for a given harvest strategy has a straight forward expression of the target ... conditions to be achieved and the uncertainties that need to be managed and does not assume an understanding ... of predator-prey dynamics beyond that evident in the data. It is a natural extension of the current ...
Meeting Document : WG-EMM-15/36 : Author(s): A. Constable and S. Candy (Australia)