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Slow recovery of previously depleted demersal fish at the South Shetland Islands, 1983–2010
. coriiceps at Potter Cove, South Shetland Islands, over a 28-yr period, 1983-2010. N. rossii abundance ... from 1986, exhibited a similar pattern, showing a decrease until 1991-92. After a period of relative ... stability (1992-1994), a sharp increase in length and a continued decline in relative abundance indicated ... and suggest that a further two decades will lapse before these stocks recover. Using the South ...
Meeting Document : WG-FSA-12/P01 : Автор(ы): E.R. Marschoff, E.R. Barrera-Oro, N.S. Alescio and D.G. Ainley
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.3a
coming years in order to achieve a robust stock assessment that would provide advice on a catch limit ... according to CCAMLR decision rules. This paper aims to present a research plan for 2014/2015 that takes into ... improve the estimation of current biomass. An update of the assessment of Dissostichus eleginoides using a ... CASAL model and a simple Petersen biomass estimate derived from tagging data are presented. The CASAL ...
Meeting Document : WG-SAM-14/17 : Автор(ы): Delegation of France
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An ecological risk assessment of current conservation measures for krill fishing in East Antarctica (CCAMLR Divisions 58.4.1 and 58.4.2)
involved in any redevelopment of a commercial krill (Euphausia superba) fishery in CCAMLR Divisions 58.4.1 ... has a high likelihood of achieving CCAMLR’s objectives in this region. This paper outlines a ... measures that are relevant to Divisions 58.4.1 and 58.4.2 sufficiently mitigate the risk of a krill fishery ... Divisions 58.4.1 and 58.4.2, suggests a distribution of catch across the four subdivisions. This risk ...
Meeting Document : WG-EMM-18/37 : Автор(ы): N. Kelly, L. Emmerson, S. Kawaguchi, C. Southwell and D. Welsford
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e-cc-vii-aH.pdf
... Commission (paragraph 99), the Commission established a Standing Committee on Observation and Inspection ... and inspectors referred to in Article XXIV of the Convention. (a) Designated observers and ... until July 1 of the following year. II. The Commission shall maintain a register of certified ... observers and inspectors designated by Members. (a) The Commission shall communicate the register of
application/pdf attached to:SCOI-88
Meeting Report : SCOI-88
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CEMP indices and the development of ecosystem assessments
CEMP indices and ecosystem assessments (Table 3 and paragraph 3.55). The following paper provides a ... starting point for such a review, as well as a conceptual approach which may provide a framework for a set ...
Meeting Document : WG-EMM-01/9 : Автор(ы): Secretariat
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Report on the activities of the Scientific Committee on Antarctic Research (SCAR) 2006/07
directly to CCAMLR or are of potential interest to CCAMLR. This includes a report on progress with the new ... Workshop with the provision of data and expertise. The SCAR/SCOR Oceanography Expert Group convened a ... meeting to develop the Southern Ocean Observing System. SCAR commissioned a report of the State of the ... Antarctic and Southern Ocean Climate Systems. SCAR is also a co-sponsor of both Southern Ocean GLOBEC and a ...
Meeting Document : CCAMLR-XXVI/BG/36 : Автор(ы): SCAR Observer to CCAMLR(G. Hosie, Australia)
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Modelling growth of Antarctic krill: growth trends with sex, length, season, and region
years accumulation of instantaneous growth rate (IGR) measurements were modelled using a Linear Mixed ... Model (LMM). A model of inter-moult period (IMP) as a function of temperature, required to convert IGR ... this model was used to predict seasonal IMP using a model of the average sea-surface temperature ... seasonal trend for each region. Smaller krill exhibited higher growth rates and a progressive decrease in ...
Meeting Document : WG-EMM-05/29 : Автор(ы): S. Kawaguchi, S. Candy, R. King (Australia), M. Naganobu (Japan) and S. Nicol (Australia)
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Trawl survey of the Patagonian toothfish (Dissostichus eleginoides) resource off the Prince Edward Islands
Abstract: A bottom trawl survey was conducted in the northern half of the South African EEZ ... possible to design a statistically rigid survey, consequently this first survey is regarded as a pilot ... bottom trawl surveys extremely difficult. A total of 55 trawls were completed and these show a ... designed to yield a biomass estimate, a first, crude for Patagonian toothfish estimate is presented. 51 ...
Meeting Document : WG-FSA-01/72 : Автор(ы): R.W. Leslie and B.P. Watkins (South Africa)
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Effects of sea-ice extent and krill or salp dominance on the Antarctic food web
Abstract: Krill (Euphausia superba) provide a direct link between primary producers and higher ... not a major dietary item for Antarctic vertebrate predators, their blooms can affect adult krill ... relationships between krill, salps and region-wide sea-ice conditions. We have assessed salp consumption as a ... chlorophyll-a that indicate that there is a degree of competition between krill and salps. Our analysis of the ...
Meeting Document : WG-EMM-97/73 : Автор(ы): Hewitt, R., Trivelpiece, S., Fraser, W., Holm-Hansen, O., Siegel, V., Trivelpiece, W., Loeb, V.
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Effects of different harvesting strategies on the stock of Antarctic icefish Champsocephalus gunnari around South Georgia
Abstract: The effects of a number of harvesting strategies on the Antarctic icefish ... Champsocephalus gunnari have been simulated for a period of 30 years. These were- diffierent levels of constant ... years after a good recruitment,- pulse fishing at an interval of 3 years with no fishing in between;- a ... of the incoming year class. An increaseof F, however, should not occur before 4 years after a good ...
Meeting Document : SC-CAMLR-VIII/BG/47 : Автор(ы): Delegation of Federal Republic of Germany
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