Search results
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Effect of orientation on broadband acoustic scattering of Antarctic krill Euphausia superba: implications for inverting zooplankton spectral acoustic signatures for angle of orientation
Abstract: Acoustic scattering experiments involving simultaneous acquisition of broadband echoes ... and video footage from several Antarctic krill were carried out to determine the effect of animal ... orientation on echo spectral structure. A novel video analysis technique, applied to extract krill angle of ... echo spectra had a more erratic structure, with several closely spaced nulls of variable depth. The ...
Meeting Document : WG-EMM-99/41 : Author(s): L.V. Martin Traykovski (USA), R.L. O’Driscoll (New Zealand) and D.E. McGehee (USA)
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On the problem of Soviet krill fishery allocation and intensity in the area of Elephant Island in the season of 1988-1989
. Though the catch of the USSR in the above-mentioned season reached maximum, the total fishery intensity ... for the last 9 seasons was low and only 1 standard vessel operated in the area during 40% of the ... period. The highest catch per-unit-of-effort was observed in January (7.7 t per hour of trawling in ... average), and the lowest in November (3.5 t per hour of trawling in average). Fisheries tacktics follows ...
Meeting Document : WG-CEMP-92/30 : Author(s): V.A. Sushin and A.S. Myskov (Russian Federation)
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A GIS tool to assist in the planning and design of sample surveys of the abundance of colonial breeding species
Abstract: A GIS tool to assist in the planning and designing of surveys of colonial breeding ... species is described. The tool could be applied to any region of Antarctica given available colony map and ... developed to implement more complex and efficient designs. An example of its potential use is provided. In ... the example the tool is used to sample a population of Adelie penguins in the Holme Bay region of East ...
Meeting Document : WG-EMM-05/25 : Author(s): C. Southwell, R. Dreissen, S. Candy, G. McPherson and J. Clarke (Australia)
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To the problem of distribution of different species of toothfishes Dissostichus
Abstract: According to the results of the long-term studies (1967–1991) in expeditions to the sub ... -Antarctic and Antarctic waters of the Indian Sector of the Southern Ocean, distribution areas of the ... Patagonian and Antarctic toothfish are clearly cut. It was concluded that the areas of these toothfish ... species were not overlapped in the area under review. Author(s): Prutko, V.G. Title: To the problem of ...
Meeting Document : WG-FSA-97/20 : Author(s): Prutko, V.G.
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Change of sex ratio of krill (Euphausia superba) from austral early summer to midsummer in 1983/84 in the vicinity of Prydz Bay, Antarctica
Abstract: In this present report the change of the Antarctic krill distribution pattern from ... December 1983 to January/February 1984 in the vicinity of Prydz Bay was analysed. The results showed the ... remarkable change of sex ratio and coefficient of fatness between the early summer and the midsummer. The ... waters indicating the high ratios of female krill with the high coefficient of fatness were considered to ...
Meeting Document : WG-Krill-94/30 : Author(s): M. Naganobu and S. Kawaguchi (Japan)
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PROPERTIES OF KRILL DISTRIBUTION IN PELAGIC AND COASTAL SSMUs OF THE SOUTH ORKNEY ISLANDS SUBAREA ACCORDING TO THE DATA OF SCIENTIFIC OBSERVATIONS AND FISHERY
Abstract: In this paper the krill spatial distribution in the in coastal and pelagic SSMUs of the ... Subarea 48.2 depending on oceanological factors is considered. Estimates of krill biomass and aggregation ... characteristics, and krill transport factors according to different modifications of Antarctic water mass are ... not meet the requirements of the present day fishery. Krill distribution and water mass circulation ...
Meeting Document : WG-EMM-08/55 : Author(s): S.M. Kasatkina and V.N. Shnar (Russia)
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Variability of krill fishery operations in Subarea 48.2 in relation to fishing methods: spatial–temporal distribution of CPUE and of fishing efforts
values of standardized CPUE indices in the Subarea 48.2 for the last 25 years. The paper provides the ... analysis of spatial- temporal variability of krill fishery based on CPUE trends, trawling duration, catch ... Subarea 48.2 is results of the influence of changing environment. The temporal pattern of fishing ... ; significant monthly and inter-annual variability of fishery performance in relation to fishing methods as well ...
Meeting Document : WG-EMM-14/22 : Author(s): S. Kasatkina (Russia)
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Outline of a research program to investigate the abundance, abundance trends and stock structure of large whales in the Indo-Pacific region of the Antarctic, including a survey plan for the 2019/20 austral summer season
of a new non-lethal research program on whales and the ecosystem in the Indo-Pacific region of the ... objectives are i) the study of the abundance and abundance trends of Antarctic minke and other large whale ... species, and ii) the study of the distribution, movement and stock structure of Antarctic minke and other ... two specialized vessels, during a tentative period of eight austral summer seasons. Analyses related ...
Meeting Document : WG-EMM-2019/68 : Author(s): Delegation of Japan
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Definition of age characteristics of Antarctic toothfish (Dissostichus mawsoni) from the Indian Ocean sector of the Antarctic region
Abstract: For the determination of the age of Dissostichus mawsoni used otoliths and scales. All ... samples were collected in the Indian Ocean sector of the Southern Ocean. Methods are described. Otoliths ... well in the sections of otoliths as certain groups of the annual rings. Author(s): L. Pshenichnov, I ... . Slypko and K. Vyshniakova (Ukraine) Title: Definition of age characteristics of Antarctic toothfish ...
Meeting Document : WG-FSA-10/13 : Author(s): L. Pshenichnov, I. Slypko and K. Vyshniakova (Ukraine)
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A review of the energetic density of zooplankton and nekton species of the Southern Ocean
capacity of marine ecosystems to support stocks of living resources. This paper provides a summary of a ... review on currently available Southern Ocean energetic density data. This review is a result of the ... Southern Ocean Diet and Energetics Database, an initiative of the SCAR Expert on Group Birds and Marine ... on the diet and energetics of Southern Ocean species is collected to form a centralised database ...
Meeting Document : WG-EMM-18/P17 : Author(s): F.L. Schaafsma, Y. Cherel, H. Flores, J.A. van Franeker, M.A. Lea, B. Raymond and A.P. van de Putte