Результаты поиска
-
Habitat partitioning in Antarctic krill: spawning hotspots and nursery areas
), based on a compilation of all available post 1970s data. Using these maps, we then examined firstly ... extracted data spanning 41 years (1976-2016) from the existing KRILLBASE-abundance and KRILLBASE-length ... shelves along the Scotia Arc. Simple environmental analyses based on water depth and mean water ... direction to that for adults. Such habitat partitioning may reduce intraspecific competition for food, which ...
Meeting Document : WG-EMM-2019/20 : Автор(ы): F. Perry, A. Atkinson, S.F. Sailley, G.A. Tarling, S.L. Hill, C.H. Lucas and D.J. Mayor
-
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 : Автор(ы): S.V. Piyanova and A.F. Petrov (Russia)
-
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 ... , resulted from massive population growth during summer. This bloom, as those in previous "salp years ... moderate krill abundance and lower recruitment success of the 1995/96 year class relative to that of 1994 ...
Meeting Document : WG-EMM-97/33 : Автор(ы): Puglise, K., Outram, D., Loeb, V.
-
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 : Автор(ы): M.J. Dunn and C.M. Waluda (UK)
-
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 ... 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 ... dependent on the strength of the recruiting yearclass which also forms the bulk of catches in the fishery ...
Meeting Document : WG-FSA-88/14 : Автор(ы): K.-H. Kock and F.-W. Köster (FRG)
-
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 : Автор(ы): Submitted by the Secretariat on behalf of Ukraine
-
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 ... considerably as opposed to the multiannual average level, and late thawing of ice. On the contrary, poor ... generations of krill were formed during the years when the winter position of the ice edge was south of the ... summer during such years of moderate winter in higher surface temperature. Salp occurred in mass ...
Meeting Document : WG-EMM-98/52 : Автор(ы): K. Shust (Russia)
-
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 ... estimates was higher than in previous surveys. The higher than expected catches required an adaptive survey ...
Meeting Document : WG-SAM-17/01 : Автор(ы): K. Large, L. Robinson and S. Parker
-
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 ... ; we also look to see whether differences are apparent between years. We use this information about ... 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 ...
Meeting Document : WG-EMM-02/33 Text : Автор(ы): P.N. Trathan, J.L. Tanton, A.S. Lynnes, M.J. Jessopp, H. Peat, K. Reid and J.P. Croxall (United Kingdom)
-
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 : Автор(ы): M.R. Clark, M.R. Dunn, P.J. McMillan, M.H. Pinkerton, A. Stewart and S.M. Hanchet
Страницы
- « первая
- ‹ предыдущая
- …
- 501
- 502
- 503
- 504
- 505
- 506
- 507
- 508
- 509
- …
- следующая ›
- последняя »