Resultados de la búsqueda
-
Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3
requires a basis for the assessment of resource status, and an algorithm for specifying the levels of ... regulatory mechanisms (e.g. a catch control law) that depends on the results of the assessment. Developing ... and selecting a procedure requires a basis for the simulation testing of procedures, and an ... restricted to an initial ceiling (Cc) for a 5 year period, with a reference CPUE level (CPUEref) calculated ...
Meeting Document : SC-CAMLR-VIII/BG/17 : Autor(es): Delegation of South Africa
-
Management Plan for Antarctic Specially Protected Area (ASPA) No. XYX, Edmonson Point, Wood Bay, Victoria Land, Ross Sea
-free areas in Northern Victoria Land and was first identified in the 1980s as a site that could merit ... special protection. The site is representative in the sense that a wide range of freshwater habitats is ... unusually well-developed and the site is a good example of an Adélie penguin (Pygoscelis adeliae) and south ... polar skua (Catharacta maccormicki) assemblage. Edmonson Point includes a Weddell seal (Leptonychotes ...
Meeting Document : WG-EMM-05/7 : Autor(es): Delegation of Italy
-
Identifying marine protected areas (MPAs) in data-poor regions to conserve biodiversity and to monitor ecosystem change: an Antarctic case study
Abstract: The World Summit on Sustainable Development implementation plan requires, by 2012, a ... biodiversity. A great challenge for meeting this goal, particularly in data-poor regions, is to avoid ... inadvertant failure while giving science the time and resources to provide better knowledge. A staged process ... in the long term. We elaborate a procedure that would satisfy the first stage of identifying a RSMPA ...
Meeting Document : WS-MPA-11/05 : Autor(es): A.J. Constable, B. Raymond, S. Doust, D. Welsford (Australia), P. Koubbi (France) and A.L. Post (Australia)
-
OCEANIC CIRCUMPOLAR HABITATS OF ANTARCTIC KRILL
view that krill require high food concentrations, with a distribution often linked to shelves. For a ... regions of moderate food (0.5-1.0 mg chl a m-3). Advection models suggest some loss northwards from these ... evidence for a compensating southwards migration, with an increasing proportion of krill found south of the ... ACC as the season progressed. The retention of krill in moderately productive oceanic habitats is a ...
Meeting Document : WG-EMM-08/P04 - Abstract : Autor(es): A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming
-
Krill of the Ross Sea: distribution, abundance and demography of Euphausia superba and Euphausia crystallorophias during the Italian Antarctic expedition (January–February 2000)
) were analysed to obtain a general picture of the summer distribution pattern, abundance and demography ... of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... , in the area north of Continental Shelf, was 9.3 g/1000m3 of filtered water with a mean density of ... dominance in the High Antarctic Zone (south of 74°), with a mean relative biomass of 3.0 g/1000m3 and mean ...
Meeting Document : WG-EMM-02/32 Text : Autor(es): A. Sala, M. Azzali and A. Russo (Italy)
-
Has climate change promoted genetic fragmentation in the ice-dependent fish Pleuragramma antarcticum?
Abstract: Pleuragramma antarcticum is the only Antarctic notothenioid characterized by a complete ... pelagic life cycle and plays a major trophic role in the coastal Antarctic marine ecosystem. A previous ... investigate the population structure of P. antarcticum along the Antarctic Peninsula (AP) shelf, a region of ... Antarctica highly impacted by regional warming. We found a single gene pool and an absence of inter-annual ...
Meeting Document : WG-FSA-13/67 : Autor(es): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)
-
Results of the seventh Ross Sea shelf survey to monitor abundance of Antarctic toothfish in the southern Ross Sea, January 2018, and notification for research in 2018/19
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... abundance from a well-designed survey would be a useful input into the Ross Sea stock assessment model. In ... southern Ross Sea (Strata A–C) using standardised gear in a standardised manner; and monitoring trends in ... relative biomass index of toothfish for the core strata showed a decrease from 2017 to a value equal to the ...
Meeting Document : WG-SAM-18/10 : Autor(es): D. Stevens, X. Fu, S. Mormede and S. Parker
-
Ross Sea fishery research and data collection plan
Abstract: A review of the use and effectiveness of research lines as a data collection and effort ... collected through fishing activities has effectively made the requirement to force a spread of research sets ... demonstrably higher on research hauls. The paper concludes with a proposal for a more effective Research Plan ... , environmental, and longline specific data on both the target species and on other catch species in a non biased ...
Meeting Document : WG-FSA-05/49 : Autor(es): J. Fenaughty (New Zealand)
-
Rossii revisited: new information on the early history of the fishery for Notothenia rossii in Subarea 48.3
assessments, based on the incomplete data set, had indicated a 1970 biomass of 600 000 tonnes and an ... unrealistic stock history considering that this stock was the first to be exploited in the Antarctic. A VPA ... using the new data suggests that unexploited biomass was over 900 000 tonnes, and declined in a manner ... to be expected from a new fishery. However, on the basis of historical reports and analyses of stock ...
Meeting Document : WG-FSA-95/17 : Autor(es): Agnew, D.J.
-
Some principles for fisheries regulation from an ecosystem perspective
Abstract: The paper discusses some principles to be considered in the formulation of a framework ... subsiduary objectives for regulation which have a more rigorous scientific interpretation than the broad ... degree to which objectives are being met to be assessed. The advantages of using a feedback method of ... that estimates are required for the abundance of a stock in advance of the substantial development of a ...
Meeting Document : SC-CAMLR-V/BG/13 : Autor(es): Delegation of Australia