Результаты поиска
-
Dietary segregation of krill-eating South Georgia seabirds
period in 1986. For five species, Antarctic krill Euphausia superba was the main food (39-98% by mass ... ); grey-headed albatrosses took mainly the ommastrephids squid Martialia hyadesi (71 %) and only 16% krill ... . The size of the krill taken was similar between seabird species, although there were small but ... significant differences between penguins and the other species. Sex and reproductive status of krill. however ...
Meeting Document : WG-EMM-97/15 : Автор(ы): Prince, P.A., Croxall, J.P., Reid, K.
-
Investigations of intensity of krill drift near South Georgia Island
Abstract: Calculation of drift’s speed (transport with current) of Antarctic krill along the ... average density of krill before the beginning of transport along the island’s shore was assumed about 0.1 ... g m-3. Total amount of krill immigration on island’s shelf (in above indicated limits) were examined ... krill drift (from the beginning of immigration and to the end of emigration) along the northeastern ...
Meeting Document : WG-CEMP-92/32 : Автор(ы): V.V. Popkov (Russian Federation)
-
Multiple acoustic estimates of krill density at South Georgia during 2000/2001 reveal significant intra-annual and spatial variability
Abstract: Three separate acoustic surveys of Antarctic krill (Euphausia superba) were conducted ... extensive coverage around South Georgia. Krill density in the western box in the early-season survey was ... that is consistent with observations from previous years, krill density in the western box mid-season ... data revealed no significant difference between the mean krill density derived from only those 4 ...
Meeting Document : WG-EMM-01/15 : Автор(ы): A.S. Brierley, C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst (United Kingdom)
-
Growth of Antarctic krill Euphausia superba at South Georgia
Abstract: Antarctic krill Euphausia superba has a central role in the ecosystem of the Southern ... dynamics. The length of Antarctic krill in the diet of Antarctic fur seals Arctocephalus gazella at South ... may result in 2 year-old krill at South Georgia attaining the same size as 3 year old krill in the ... of krill has important implication for comparing the fate of individual cohorts over large scales and ...
Meeting Document : WG-EMM-01/18 : Автор(ы): K. Reid (United Kingdom)
-
Changes observed in krill length frequency distribution during repeated sampling on the South Georgia shelf in 2000 January–February
Abstract: Krill sampling were carried out Northwest and Northeast South Georgia, first during ... difference in krill inhabiting Northwest and Northeast South Georgian waters. According to the data available ... the difference do not disappear in time, instead certain increase of krill length was observed in both ... parts. The data analyzed confirm that krill on the Northern South Georgian shelf has different origin ...
Meeting Document : WG-EMM-01/40 : Автор(ы): V.A. Sushin and F.F. Litvinov (Russia)
-
Assessment of fishable krill biomass on the basis of the acoustic surveys results using geostatistical methods
krill density based on the acoustic survey data is demonstrated. The results obtained indicate ... usefulness of these methods in studying the structure of krill density field for biomass assessment in ... compliance with different thresholds of their fishery importance. The structure of krill density field in ... Subarea 48.3 based on the surveys 2000 and 2002 indicates that krill fishable biomass is concentrated in ...
Meeting Document : WG-SAM-10/07 Rev. 1 : Автор(ы): S.M. Kasatkina and P.S. Gasyukov (Russia)
-
Chinstrap penguins alter foraging and diving behaviour in response to krill size
changes in prey availability. Chinstrap penguins are dependent predators of Antarctic krill in the Scotia ... Sea region. Both the sizes of krill found in penguin diets and acoustic estimates of krill biomass ... recorders (TDRs) over five seasons: 2002-06. When krill were smaller, chinstrap penguins often exhibited a ... daytime. The average annual size of krill was negatively correlated to the number of penguins foraging on ...
Meeting Document : WG-EMM-07/11 : Автор(ы): A.K. Miller and W.Z. Trivelpiece (USA)
-
Preliminary results on the composition and abundance of the krill stock in the southern Bellingshausen Sea (Antarctic, CCAMLR Subarea 88.3)
Abstract: Krill sampling was carried out onboard RV ‘Polarstem’ from January 25 to March 11, 1994 ... south of 66°S, between 68°W and 120°W. Krill Euphausia superba abundance and biomass was in the lower ... spatial separation for size groups was observed for krill, with small size groups being more abundant in ... . The overall krill length frequency distribution was similar to the composition reported from the South ...
Meeting Document : WG-EMM-95/18 : Автор(ы): Siegel, V.
-
Broadbandwidth sound scattering and absorption from krill (Meganyctiphanes norvegica), Mysids (Praunus flexuousus and Neomysis integer) and shrimp (Crangon crangon)
Abstract: Sound scattering and absorption measurements were made of Northern krill ... measurements made of Antarctic krill (Euphausia superba; Demer and Conti, 2003a). The measurements of total ... krill, indicating its validity for other euphausiids species with similar size and shape. However, the ... derived with the generic krill shape and scaled to animal length (L). This implies that crustacean target ...
Meeting Document : WG-EMM-04/40 : Автор(ы): S.G. Conti, D.A. Demer (USA) and A.S. Brierley (United Kingdom)
-
The US commercial krill fishery in Area 48: development, fishing patterns, and decision making
for krill (Euphausia superba) in Area 48 in July, 2000. This fishery has continued and expanded each ... decision making processes involved in harvesting krill by the U.S. fishery. Because the Captain of the Top ... Ocean had no prior experience fishing for krill, anecdotal and historical information served as the ... , and the decision making processes involved in prosecuting the U.S. commercial fishery for krill by ...
Meeting Document : WG-EMM-02/18 : Автор(ы): C.D. Jones and M. Hull (USA)
Страницы
- « первая
- ‹ предыдущая
- …
- 218
- 219
- 220
- 221
- 222
- 223
- 224
- 225
- 226
- …
- следующая ›
- последняя »