Résultats de la recherche
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Preliminary review of Antarctic toothfish maturity in the Ross Sea
were dominated. Ovaries contain two groups of oocytes of the period of trophoplasmatic growth and large ... condition, and diameter of their large oocytes was 1075- 2331•10-6m in different years. Author(s): S.V ...
Meeting Document : WG-FSA-11/27 : Auteur(s): S.V. Piyanova and A.F. Petrov (Russia)
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Krill, salps and other dominant zooplankton taxa in the Elephant Island area during the 1997 austral summer
Abstract: Results from two net surveys in the Elephant Island area during January-March indicated ... moderate krill abundance and lower recruitment success of the 1995/96 year class relative to that of 1994 ... , resulted from massive population growth during summer. This bloom, as those in previous "salp years ...
Meeting Document : WG-EMM-97/33 : Auteur(s): Puglise, K., Outram, D., Loeb, V.
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BEACH DEBRIS SURVEY AND INCIDENCE OF ENTANGLEMENT OF ANTARCTIC FUR SEALS ARCTOCEPHALUS GAZELLA AT SIGNY ISLAND, SOUTH ORKNEY ISLANDS 2007/2008
, South Orkney Islands. Data are reported for the period 14 November 2007 to 13 March 2008. Three seals ... of 56 items weighing 11 kg, representing an increase from 2006/07 of 11% (by number) and 33% (by mass ... ). There was a decrease in the number of plastic packaging bands with only two found in the current season ... environment remains a problem. The need for continued monitoring to ensure that vessels are aware of, and ...
Meeting Document : WG-FSA-08/26 : Auteur(s): M.J. Dunn and C.M. Waluda (UK)
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The State of Exploited Fish Stocks in the Atlantic Sector of the Southern Ocean in 1988
. The level of conservation measures to be established for the stock is, however, dependent on the ... depleted by the fishery and are in need for conservation measures. P. br. guntheri is the only species for ... first peak years 1969-71 which yielded about 500,000 tonnes in 2 seasons. Since 1975/76 fishing is ... of the 1970s. Simulation studies indicate that the stock size will only double within 10 years time ...
Meeting Document : WG-FSA-88/14 : Auteur(s): K.-H. Kock and F.-W. Köster (FRG)
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Research plan to assess the stock status of Dissostichus spp. in Subarea 48.2
limited to 80 tonnes of Dissostichus spp. in 2013/14. The notification was submitted on 30 April 2013 and ... Abstract: Ukraine has submitted a notification for research fishing over three seasons to assess ... on behalf of Ukraine Title: Research plan to assess the stock status of Dissostichus spp. in Subarea ...
Meeting Document : WG-SAM-13/15 : Auteur(s): Submitted by the Secretariat on behalf of Ukraine
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Natural fluctuations in the abundance of krill with due regard to global climate changes in the southern hemisphere: forecasting possibilities
the South Ocean in recent years made it possible for scientists to establish a rather clear ... between the strong year-classes of krill and severe winters when the ice-cover extended itself northwards ... constantly both in scientific and commercial fishing gear. Poor year-classes of krill and upsurges in the ... considerably as opposed to the multiannual average level, and late thawing of ice. On the contrary, poor ...
Meeting Document : WG-EMM-98/52 : Auteur(s): K. Shust (Russia)
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Results of the sixth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, January 2017
of toothfish for the core strata showed an increase to the maximum observed in the time series ... . Scaled length frequencies for the core strata indicate the progression of a strong year class that ... larger (large sub-adult and adult) toothfish in two areas (both situated in SSRU 881.M) of importance to ... appears in 2012 progressing through each year, with the appearance of a second strong cohort in 2015. The ...
Meeting Document : WG-SAM-17/01 : Auteur(s): K. Large, L. Robinson and S. Parker
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Spatial and temporal variability in foraging patterns of krill predators at Signy Island and South Georgia
for increasingly long periods and over much greater areas as their offspring develop. Their potential ... commercial fishery for Antarctic krill, Euphausia superba. The criteria used to identify these units are ... described as an example of how they could be used in other locations where the fishery operates. Author(s ... ; we also look to see whether differences are apparent between years. We use this information about ...
Meeting Document : WG-EMM-02/33 Text : Auteur(s): P.N. Trathan, J.L. Tanton, A.S. Lynnes, M.J. Jessopp, H. Peat, K. Reid and J.P. Croxall (United Kingdom)
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Latitudinal variation of demersal fish assemblages in the western Ross Sea
Abstract: Demersal fishes were sampled using a large fish trawl during two surveys carried out in ... influence this. Species accumulation with sample frequency did not reach an asymptote, but the rate of new ... species was low suggesting data were adequate for describing the main components of the communities. Three ...
Meeting Document : WG-FSA-10/P03 : Auteur(s): M.R. Clark, M.R. Dunn, P.J. McMillan, M.H. Pinkerton, A. Stewart and S.M. Hanchet
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Incident of Antarctic krill (Euphausia superba) mass infection near the coasts of South Georgia Island (Subarea 48.3)
Abstract: In the north-eastern part of South Georgia Island shelf (Subarea 48.3) on 30 July 2001 ... for the first time we found out young and mature antarctic krill Euphasia superba individuals affected ... Georgia Island northern part, where definite currents provided for isolation of krill aggregations ... percentage of krill invasion increased 2.3 times. In shelf zone and on the continental slope of the South ...
Meeting Document : WG-EMM-02/13 : Auteur(s): M.S. Savich (Ukraine)