Resultados de la búsqueda
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2006–2013 fish distribution and biomass in the Kerguelen EEZ (CCAMLR DIVISION 58-5-1) for the bathymetric range 100–1 000 m
Kerguelen Plateau (POKER 1, 2006; POKER 2, 2010; POKER 3, 2013) with the chartered trawler FV “Austral ... time) allows to be confident with the estimation of fish biomass ranging from 247 000 to 268 000 tons ... for a ground area of about 183 000 km 2. Patagonian toothfish (Dissostichus eleginoides), with up to ...
Meeting Document : WG-FSA-14/07 : Autor(es): G. Duhamel, M. Hautecœur and R. Sinegre (France)
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e-sc-xxv-a6.pdf
... of the Secretariat and outlined local arrangements for the meeting. 3. Dr O’Driscoll reviewed the ... synchronise bottom trawl and acoustic surveys (simultaneous surveys with two vessels or interchangeable ... and acoustic surveys to reduce the variance associated with biomass estimates and length–age ... considered by WG-FSA- SFA. A mean B20 of –83.61 dB with a standard deviation of 0.068 dB was estimated from
application/pdf attached to:SG-ASAM-06
Meeting Report : SG-ASAM-06
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Alternative assessment methods for toothfish at South Georgia
first is that the CPUE in the early 1990s did not decline as would be expected as the resource was ... initial lack of early decline, the abrupt decline between 1995 and 1996 and the subsequent increase in ...
Meeting Document : WG-FSA-SAM-04/17 : Autor(es): Kirkwood, G., Payne, A., Agnew, D.
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Distribution and ecology of Chaenocephalus aceratus (Channichthyidae) around South Georgia and Shag Rocks (Southern Ocean).
that growth was fast in the first five years with males and females attaining lengths at first spawning ... of 440 mm TL and 520 mm TL. The diet was comprised of fish and crustaceans, with an ontogenetic shift ...
Meeting Document : WG-FSA-07/P5 : Autor(es): W.D.K Reid, S. Clarke, M.A. Collins and M. Belchier. (Polar Biol., 30 (12): 1523–1533 (2007))
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Male krill grow fast and die young
examined with an extensive dataset derived from scientific surveys in the Indian Ocean sector and the ... with time unless new recruits enter the population. Indeed, inter-annual variations in the proportion ... males when several years of low recruitment followed a recruitment pulse. These results lead us to ... grow fast and die young Approval: Approved ...
Meeting Document : WG-EMM-07/P6 : Autor(es): S. Kawaguchi, L.A. Finley, S. Jarman, S.G. Candy (Australia), R.M. Ross, L.B. Quetin (USA), V. Siegel (Germany), W. Trivelpiece (USA), M. Naganobu (Japan) and S. Nicol (Australia)
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Growth rates of Antarctic fur seals as indices of environmental conditions
weighing cross-sections of the population were compared with measured/inferred changes in the the ... growth rates in years of low krill availability. Biases reflecting changes in the component of the ... linearity. The indices of growth deviates produced a more logical relationship with other indices of pup ... mass at age in each year compared to the multi-year mean, that was not dependent on assumptions of ...
Meeting Document : WG-EMM-01/20 : Autor(es): K. Reid (United Kingdom)
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An assessment of Chaenocephalus aceratus and Pseudochaenichthys georgianus in Subarea 48.3
the years 1977 to 1988 consisted of catches of C. aceratus and P. georgianus. Biological, age-length ... and length data from Polish research and commercial sources has been used with the new catch data in a ... VPA (Variable Population Analysis). The analyses show good agreement with historical biomass estimates ...
Meeting Document : WG-FSA-90/06 : Autor(es): D.J. Agnew (Secretariat) and K.-H. Kock (Germany)
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On the scientific observation and krill escape mortality in the krill fishery
Abstract: For several years (2006-2009) the Ukraine has been proposing that international or ... highlighted the magnitude of the scientific uncertainties and data gaps that are hampering progress with ... fishery. Krill escapement mortality- and the methods to determine it- is closely connected with the need ...
Meeting Document : CCAMLR-XXIX/45 : Autor(es): Delegation of Ukraine
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An analysis of temporal variability in abundance, diversity and growth rates in the coastal ichthyoplankton assemblage of South Georgia (sub-Antarctic)
) and C. gunnari (Channichthyidae), dominated abundance in all years. Significant seasonal and ... significantly correlated with local SST or primary productivity. Estimates of larval growth are provided for 5 ... temperature and /or food availability. A comparison with historical growth data from South Georgia suggests ... Abstract: Data from a seven-year (2002-2008) ichthyoplankton sampling programme in Cumberland Bay ...
Meeting Document : WG-FSA-12/33 : Autor(es): M. Belchier and J. Lawson (United Kingdom)
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Plan of research program of the Russian Federation in Subarea 48.5 (Weddell Sea) in season 2014/2015
Weddell Sea during most time of the year, this large water area is very similar with the Ross Sea. This ... the Russian Federation multi-year research program in the Weddell Sea that are prospected for 5 years ... with CCAMLR decision rules. The program contains schedule and research program of the third stage of ...
Meeting Document : WG-SAM-14/07 : Autor(es): Delegation of the Russian Federation