Resultados de la búsqueda
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Monitoring and managing the effects of environmental change on toothfish assessments
Abstract: This paper presents a ‘first-step’ proposal for CCAMLR to consider the effects of ... environmental conditions that are maintained over a number of years, which includes the effects of global ... climate change. The effects of environmental variability and change on toothfish population dynamics and ... productivity are largely unknown and are difficult to predict given our current understanding of the Southern ...
Meeting Document : WG-SAM-18/22 : Autor(es): M. Pinkerton, A. Dunn, S. Mormede and S. Parker
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Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) programme: Preliminary report of the ICED–CCAMLR Projections Workshop, 5 to 7 April 2018
Abstract: Climate change will alter the structure and functioning of Southern Ocean ecosystems ... and affect the ecosystem services they provide. The impacts of climate change will require development ... of conservation and management strategies that anticipate and adapt to potential changes in krill ... in the Southern Ocean (ICED) programme and CCAMLR brought together a range of ecologists, physical ...
Meeting Document : WG-EMM-18/09 : Autor(es): E.J. Murphy, N.M. Johnston, S.P. Corney and K. Reid
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MODELING PREDATION BY TRANSIENT LEOPARD SEALS FOR AN ECOSYSTEM-BASED MANAGEMENT OF SOUTHERN OCEAN FISHERIES
leopard seals on a community of mesopredators (seals and penguins) and their prey at South Georgia, and ... Abstract: Correctly quantifying the impacts of rare apex marine predators is essential to ... prey vulnerability. We combined these uncertainties to evaluate the predatory impact of transient ... -selective predation and prey vulnerability. A population of 104 (90–125) leopard seals, of which 64%were ...
Meeting Document : WG-EMM-09/P08 : Autor(es): J. Forcada, D. Malone, J.A. Royle and I.J. Staniland
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Scientific requirements for an orderly development of the krill fishery
Abstract: At CCAMLR XXV Australia presented the results of the BROKE-West acoustic krill biomass ... precautionary catch limit for krill in Statistical Division 58.4.2 of 1.49 million tonnes (up from 450 000 ... of other elements in the conservation measure to facilitate the orderly and precautionary development ... of the fishery. The aim of this paper, which Australia committed to present to this year’s WG-EMM, is ...
Meeting Document : WG-EMM-07/23 : Autor(es): A. Constable, G. Slocum and S. Nicol (Australia)
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Standardised CPUE analysis of the Antarctic toothfish fishery in CCAMLR Subarea 88.1 from 1988/89 to 2003/04
of the residuals at either end for the lognormal GLM models, and at the lower end for the fixed ... to 2004, in Subareas 88.1 and 88.2. A preliminary standardised analysis of toothfish CPUE (catch (kg ... addition of data from the 2004 season using data sets based on all vessels and the two main New Zealand ... using mixed-effect models following Candy (2003). The variables entering each of the three models were ...
Meeting Document : WG-FSA-04/25 : Autor(es): N.L. Phillips, R.G. Blackwell and S.M. Hanchet (New Zealand)
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Progress towards an assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 882C–H for the years 2002/03 to 2017/18 using a two-area model
88.2C–G) comprising a mix of large mature fish and small immature fish. Two-area stock assessment models ... collect mark-recapture data in the South to inform the estimation of biomass in the South. Simulation work ... models including data from four years of recapture data from the South. The assessment models were fit to ... the proportions-at-age in the catch, and the mark-recapture data from the two areas. The results ...
Meeting Document : WG-FSA-18/37 : Autor(es): S. Mormede and S. Parker
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Early announcement of the Third International Krill Symposium
Krill that will be held from the 12-16 June 2017 at the University of St Andrews, Scotland. Author(s ... Abstract: This paper provides an early announcement of the Third International Symposium on ... ): CCAMLR Secretariat Title: Early announcement of the Third International Krill Symposium Approval ...
Meeting Document : SC-CAMLR-XXXIV/BG/30 : Autor(es): CCAMLR Secretariat
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A condensed history and document of the method used by CCAMLR to estimate krill biomass (B0) in 2010
Abstract: Antarctic krill (Euphausia superba) are considered to be one of the key species in the ... Antarctic marine food web, being prey to a wide variety of dependent species as well as being commercially ... harvested. The commercial exploitation of krill is managed under the direction of CCAMLR (Commission for the ... Conservation of Antarctic Marine Living Resources), utilising results derived from the CCAMLR generalised yield ...
Meeting Document : WG-EMM-16/38 : Autor(es): S. Fielding, A. Cossio, M. Cox, C. Reiss, G. Skaret, D. Demer, J. Watkins and X. Zhao
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Variability and predictability of Antarctic krill swarm structure
immature krill. We propose that, at the mesoscale level, the structure of swarms switches from being ... Abstract: Swarming is a fundamental part of the life of Euphausia superba, yet we still know very ... -concentration and inter-swarm distance of 4525 swarms was derived by this method. Hierarchical clustering ... ) whereas type 2 swarms were an order of magnitude larger and had packing concentrations up to 10 times ...
Meeting Document : WG-EMM-10/P10 : Autor(es): G.A.Tarling, T. Klevjer, S. Fielding, J. Watkins, A. Atkinson, E. Murphy, R. Korb, M. Whitehouse and R. Leaper
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Summary of the Ecologically Related Species Working Group meeting
the IMAF nominated observer at the meeting. Author(s): J. Molloy (New Zealand) Title: Summary of the ... in February 2004. This report provides a summary of the discussion and outcomes of that meeting from ...
Meeting Document : WG-FSA-04/33 Rev. 1 : Autor(es): J. Molloy (New Zealand)