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Assessing the feasibility of regional surveys of land-based predator abundance in the Southern Ocean: a framework for decision making and planning
abundance of land-based predators. At the 2001 meeting of WG-EMM it was proposed that a workshop be held in ... 2002 to assess the feasibility of such broad-scale surveys, and a small intersessional correspondence ... intersessional group developed a draft decision-making framework for planning regional scale surveys and agreed ... that it be applied at the workshop to a selected region as a means of both assessing and/or developing ...
Meeting Document : WG-EMM-02/45 : Автор(ы): C. Southwell (Australia)
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A revision of yield and catch controls for managing the mackerel icefish (Champsocephalus gunnari) fishery in the vicinity of Heard Island and McDonald Islands
Abstract: A recent 2000 survey of mackerel icefish in the vicinity of Heard Island enabled a ... previous years, it is dominated by a strong age 2 year class. Estimates of yield for the Heard Island ... fishing seasons. The results of the 2000 survey confirm the need to retain a closure to fishing on Shell ... to enter the fishery prior to assessments occurring. Author(s): A. Constable, R. Williams, T. Lamb ...
Meeting Document : WG-FSA-00/41 : Автор(ы): A. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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CCAMLR spatial management GIS: potential applications for informing the development of a representative system of MPAs
Abstract: We have developed a Geographic Information System (GIS) and accompanying metadata to ... protected areas as part of the development of a representative system of Antarctic marine protected areas ... proportion of bioregion areas protected by MPAs. The database also provides a central repository for ... information on the location and status of designated MPAs, which will be a key requirement for the effective ...
Meeting Document : WS-MPA-11/20 : Автор(ы): S.M. Grant, S.L. Hill and P.T. Fretwell (UK)
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Depletion-corrected average catch: a simple formula for estimating sustainable yields in data-poor situations
-lived species. Over an extended period (e.g. a decade or more), the catch is divided into a sustainable ... yield component and an unsustainable “windfall” component associated with a one-time reduction in stock ... biomass. The size of the windfall is expressed as being equivalent to a number of years of sustainable ... production, in the form of a “windfall ratio”. The DCAC is calculated as the sum of catches divided by the ...
Meeting Document : WG-SAM-11/P3 : Автор(ы): A.D. McCall
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MULTIPLE INDICATORS SUGGEST A STRONG ECOSYSTEM ANOMALY AT SOUTH GEORGIA IN 2009
, Euphausia superba, which is a major prey species for many vertebrate populations at South Georgia. The ... marine ecosystem at South Georgia is the focus of a major research effort and consequently there are many ... revealed a strong anomaly in early 2009. Above average sea temperatures, without any evidence of increased ... warm water inflow were followed by reduced icefish catches, a paucity of krill in icefish and penguin ...
Meeting Document : WG-EMM-09/23 : Автор(ы): S. Hill, M. Belchier, M. Collins, S. Fielding, E. Murphy, P. Trathan, H. Venables and C. Waluda (United Kingdom)
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A PRELIMINARY BALANCED TROPHIC MODEL OF THE ECOSYSTEM OF THE ROSS SEA, ANTARCTICA, WITH EMPHASIS ON APEX PREDATORS
Abstract: We report on the development of a mass balanced carbon-budget trophic model of the Ross ... Sea as a step towards investigating ecosystem effects of the fishery for Antarctic toothfish ... toothfish. A survey of the available literature and both published and unpublished data provided an initial ... the method we used to adjust the parameters to give a balanced model taking into account estimates of ...
Meeting Document : WG-EMM-08/42 : Автор(ы): M.H. Pinkerton, J.M. Bradford-Grieve and S.M. Hanchet (New Zealand)
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Temporal scales of foraging in a marine predator: implications for interpreting the distribution of prey
success of a predator. In pelagic marine ecosystems, where prey is often patchily distributed, predators ... the surface, the time taken for a fur seal to locate a new patch after leaving an old one is an ... showed that fur seals foraged at two spatial distributions: (1) a fine-scale (median distance 0.18- 0.27 ... km) represented by short (5 rain) travel durations. In a study lasting 5 years, the distributions of ...
Meeting Document : WG-EMM-95/23 : Автор(ы): Boyd, I.L.
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Further development of a krill fishery simulation model
to both Japanese and Chilean krill fishing fleets in Subarea 48.1. A stochastic element is introduced ... the model predicts a 90% reduction in overlap with foraging predators, and a 15 to 20% reduction in ... catch. Closure of Livingston Island for the breeding period resulted in a 60% reduction in overlap with ... development of a krill fishery simulation model Approval: Approved ...
Meeting Document : WG-Joint-94/04 : Автор(ы): D.J. Agnew (Secretariat)
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Reproduction in Antarctic notothenioid fish - a review
Abstract: Abstract: Gonad maturation in Antarctic notothenioid fish is a biennial process ... % at spawning. Apart from a few nototheniid species the GSI of males is much less and typi6dlly only 15 ... autumn. Spawning time is remarkably constant among populations of some species, in others a latitudinal ... weight. It exceeds 100 000 eggs only in a few nototheniid species and is commonly in the order of 1000 to ...
Meeting Document : SC-CAMLR-X/BG/12 : Автор(ы): Delegation of Germany
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A glossary of terms relevant to the management of Vulnerable Marine Ecosystems (VMEs) in the CCAMLR Area
Abstract: In 2009 SC-CCAMLR identified a list of tasks to be considered intersessionally to ... progress a framework within CCAMLR to manage the risk that bottom fishing in the CCAMLR Area may produce ... the identified intersessional tasks was to produce a glossary of terms relevant to the management of ... VMEs (SC-CAMLR XXVIII, paragraph 4.251(iii)). We propose a glossary of terms relevant to VMEs, for ...
Meeting Document : WG-EMM-10/29 : Автор(ы): B.R. Sharp and S.J. Parker (New Zealand)
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