Результаты поиска
-
Relationships of Antarctic krill (Euphausia superba Dana) variability with westerlies fluctuations and ozone depletion in the Antarctic Peninsula area
-level pressure gradients across Drake Passage during 1982-1993. The years with high pressure gradients ... variability of krill recruitment and stock density with hypothesised environmental factors. We demonstrated ... meaning strong westerly winds coincided with good levels of krill recruitment in 1981182 (austral summer ... season), 1987/88 and 1990/91, while the years of extremely low values meaning weak westerly winds ...
Meeting Document : WS-AREA 48-98/5 : Автор(ы): M. Naganobu, K. Kutsuwada, Y. Sasai and S. Taguchi (Japan)
-
Calibration of an acoustic echo-integration system in a deep tank, with system gain comparisons over standard sphere material, water temperature and time
Paper Title: Calibration of an acoustic echo-integration system in a deep tank, with system gain ... outlines the theory and procedures for calibrating an echo integration acoustic system with a standard ... sphere. It presents the results of an extensive calibration of a Simrad EK500 scientific echosounder with ... with the Cu sphere are, with the exception of the long pulse length, lower than those from the WC ... tank is a cylindrical steel structure, approximately 10 m deep by 3 m in diameter. It was filled with ... calibrations with optimal copper spheres. J. Acoust. Soc. Am., 73 (3): 1054-1063. FOOTE, K.G., and D.N ... -INTEGRATION SYSTEM IN A DEEP TANK, WITH SYSTEM GAIN COMPARISONS OVER STANDARD SPHERE MATERIAL, WATER ... procedures for calibrating an echo integration acoustic system with a standard sphere. It presents the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 127–144 : Автор(ы): Demer, D.A. and R.P. Hewitt
-
The direct impact of fishing and fishery-related activities on marine life in the CCAMLR Convention Area with particular emphasis on longline fishing and its impact on albatrosses and petrels – a review
Abstract: Finfishing started in the Southern Ocean more than 30 years ago at South Georgia and ... Iles Kerguelen. The fishery extended further south for a few years in the second half of the 1970' ... , in particular birds and mammals. With the exception of plastic package bands on some sub-Antarctic ... direct impact of fishing and fishery-related activities on marine life in the CCAMLR Convention Area with ...
Meeting Document : SC-CAMLR-XIX/BG/11 : Автор(ы): Delegation of Germany
-
The reliability of VHF telemetry data for measuring attendance patterns of marine predators: a comparison with Time Depth Recorder data
Abstract: VHF radiotelemetry data has been used for over thirty years to monitor the behavior ... VHF data collected on 16 lactating Antarctic fur seals to assess onshore attendance, with concurrently ... the retrieved datasets, 25% of the VHF data could not be interpreted with any reliability ... instrument types, with VHF data overestimating attendance bout duration by approximately 8.9h on average ...
Meeting Document : WG-EMM-15/P05 : Автор(ы): A.D. Lowther, H. Ahonen, G. Hofmeyr, W.C. Oosthuizen, P.J. Nico De Bruyn, C. Lydersen and K. Kovacs
-
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 ... 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 ... years of development of El Niño off South America (Jordan, 1991). These facts may lead one to assume ...
Meeting Document : WG-EMM-98/52 : Автор(ы): K. Shust (Russia)
-
Oil, paint, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 1997/98
fishing gear associated with seabirds at South Georgia. In this, the fifth year of standardised recording ... , a marked increase in the quantity of plastic debris associated with seabirds was evident; quantities ... of fishing gear remained within the levels of previous years for all species (although the number of ... squid jigs associated with grey-headed albatrosses increased); feather soiling (by oil and paint) was ...
Meeting Document : SC-CAMLR-XVII/BG/10 : Автор(ы): Delegation of the United Kingdom
-
Fishing equipment, marine debris and hydrocarbon soiling associated with seabirds at Bird Island, South Georgia, 2006/07
associated with seabirds at Bird Island, South Georgia from 1 April 2006 to 31 March 2007. It is the ... fourteenth such annual report. As in previous years, more items of marine debris and fishing gear (mostly ... longline fishing gear) were found in association with wandering albatrosses than with any other species ... . The total number of items encountered (n =170) increased after a recent short-term decline with large ...
Meeting Document : SC-CAMLR-XXVI/BG/18 : Автор(ы): Delegation of the United Kingdom
-
Studies on zooplankton with special reference to krill from the Indian Ocean sector of the Southern Ocean
303.62m1./100m-3 (x=142.14±77.02). High standing stock values were recorded in the study area where ... of zooplankton community and the population density ranged fiom 650 to 7209/100 m-3 of zooplankton ... , R. Vijayakumar and V. Jaya Sree (India) Title: Studies on zooplankton with special reference to ...
Meeting Document : WG-EMM-98/35 : Автор(ы): K.L. Bhat, R. Vijayakumar and V. Jaya Sree (India)
-
FISHING EQUIPMENT, MARINE DEBRIS AND HYDROCARBON SOILING ASSOCIATED WITH SEABIRDS AT BIRD ISLAND, SOUTH GEORGIA, 2007/2008
hydrocarbons associated with seabirds at Bird Island, South Georgia for the period 1 April 2007 to 31 March ... 2008. It is the fifteenth such annual report. As in previous years, the majority of items (84%) of ... with wandering albatrosses Diomedea exulans, and very few in association with grey-headed Thalassarche ... was observed in the total number of items encountered (n=116) compared with the previous season. Two ...
Meeting Document : WG-FSA-08/25 : Автор(ы): D. Fox (UK)
-
Fishing equipment, marine debris and oil associated with seabirds at Bird Island, South Georgia, 2003/04
associated with seabirds at Bird Island, South Georgia from 1 April 2003 to 31 March 2004. It is the eleventh ... such annual report. As in most previous years, more items of fishing gear (mostly longlining gear) were ... found in association with wandering albatrosses than with any other species, although the number has ... entanglements associated with giant petrels (northern and southern) was well above the average, as was the ...
Meeting Document : SC-CAMLR-XXIII/BG/16 : Автор(ы): Delegation of the United Kingdom
Страницы
- « первая
- ‹ предыдущая
- …
- 51
- 52
- 53
- 54
- 55
- 56
- 57
- 58
- 59
- …
- следующая ›
- последняя »