Resultados de la búsqueda
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CURRENT ABUNDANCE OF ADÉLIE PENGUIN BREEDING POPULATIONS ALONG THE KEMP AND MAC.ROBERTSON LAND COASTS, EAST ANTARCTICA: APPLICATION OF NEW SURVEY AND ESTIMATION METHODS FOR BROAD-SCALE POPULATION ASSESSMENT
Abstract: Application of new methods for estimating the abundance of breeding Adélie penguin ... populations along the Kemp and Mac.Robertson Land coasts of east Antarctica are described. Methods include use ... of sample survey designs, distance sampling to estimate detectability, virtual delineation of sample ... plot boundaries, cameras to collect adjustment data and adjustment of counts for detectability and ...
Meeting Document : WG-EMM-11/31 : Autor(es): C. Southwell, J. McKinlay, K. Newbery, L. Emmerson, M. Low, R. Pike, D. Wilson, D. Southwell and L. Einoder (Australia)
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Assessment of the status of the toothfish stock in Subarea 48.3
Abstract: We conducted several different assessments of toothfish in Subarea 48.3 using four ... apparently not sufficient to generate realistic estimates of current biomass using GYM. ASPM runs coded in AD ... loss rates and fishery age-based selectivity. Estimations based on local depletions of toothfish ... likely current exploitable biomass of toothfish in Subarea 48.3 is between 45,000 and 62,000 t. GYM was ...
Meeting Document : WG-FSA-04/82 : Autor(es): D.J. Agnew and G.P. Kirkwood (United Kingdom)
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Course of fisheries in the Lena Bank area (Division 58.4.4) in the season of 1990-91
Abstract: In the season of 1990/1991, fishing operations in subarea 58.4.4. (Lena Bank) wer4e ... made 971 t of grey rockcod Notothenia squamifrons and 29 t of Patagonian toothfish Dissostichus ... it is necessary to update the relevant documents. The size-age composition of catches did not suffer ... significant changes. The mean fish age made 7.0 years. Interannual fluctuations in size-age composition of ...
Meeting Document : WG-FSA-94/07 : Autor(es): A.K. Zaitsev (Ukraine)
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Assessment of the Dissostichus eleginoides stock in Subarea 48.3 for the 1990/91 season and calculation of TAC for the 1991/92 season
Abstract: Shnyute’s generalised cohort analysis of size composition in catches was used to ... estimate the Dissostichus eleginoides stock in Area 48.3. This made it possible to ignore the hypothesis of ... equilibrium in the stock and to examine the dynamics of its abundance and biomass. At the start of the 1990/91 ... optimal results, fishing operations should be conducted at a level of F0.1. In accordance with such a ...
Meeting Document : WG-FSA-91/24 : Autor(es): P.S. Gasiukov, R.S. Dorovskikh and K.V. Shust (USSR)
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Some aspects of spatial–temporal variability of hydrodynamic water circulation and krill distribution in the Scotia Sea
Abstract: The authors considered the inter-annual variability of krill transport factors in the ... Scotia Sea analysing data from available meso-scale surveys covered the Scotia Sea. The subject of ... of water masses (kg / m 3) and krill biomass (g / m3) transporting across the survey area. Obtained ... estimates were compared with those from CCAMLR 2000 Survey. It was shown that the presence or absence of ...
Meeting Document : WG-EMM-16/39 : Autor(es): S.M. Kasatkina and V.N. Shnar
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The effect of abiotic factors on the reproduction of seabirds on the Argentine Islands
the Ukrainian Antarctic station "Academik Vernadsky". The most numerous breeding colony of ... among the newborn penguins on the Galindez Is caused by starvation. The number of residential nests ... decreased almost three times. Underwater surveys conducted by us in this period in the area of Galindez Is ... witness about the presence of large amount of krill, which wasn’t available for all the species of sea ...
Meeting Document : WG-EMM-16/59 : Autor(es): І.V. Dykyy
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ANALYSIS OF VARIABILITY OF KRILL SIZE AND FISH BY-CATCH IN JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA
Abstract: To investigate spatio-temporal variability of krill body length and number of bycatch ... hierarchical Bayesian model. The model was composed of multistage cluster units (i.e., years, subarea, vessels ... variability of krill population structure and a difficulty in predicting krill population dynamics. Variances ... of krill length and bycatch fish number by sampling stages were calculated by the multistage sampling ...
Meeting Document : WG-EMM-11/39 : Autor(es): T. Okuda and M. Kiyota (Japan)
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Summary and update of tagging of Patagonian toothfish at Heard and Macquarie Islands
Macquarie Islands are presented, along with a summary of results since the beginning of the programme ... . Results from the programme of archival tagging of toothfish are also presented. Author(s): Delegation of ... Australia Title: Summary and update of tagging of Patagonian toothfish at Heard and Macquarie Islands ...
Meeting Document : WG-FSA-03/70 : Autor(es): Delegation of Australia
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The principal results of YugNIRO complex studies in the Indian sector of the Antarctic
Abstract: In 1997 it was 30 years from the moment of launching YugNIRO fisheries studies in the ... Antarctic. Two essential points should be emphasized in the ideology and methodology of the studies carried ... out. Firstly, complex monitoring is their basis: in addition to the determination of the commercial ... potential of fish species and krill, study of the Antarctic ecosystem with its non-biological part was given ...
Meeting Document : WG-EMM-98/12 : Autor(es): V.I. Bondarenko, V.A. Bibik, V.V. Gerasimchook, E.P. Goubanov, A.V. Romanov and B.G. Trotsenko (Ukraine)
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CPUEs and body length of Antarctic krill within commercial hauls of polish trawler FV Lepus in the fishing ground off South Orkneys in January and February 1991
Abstract: Length composition of krill in diurnal and night hauls of FV Lepus, off S. Orkneys in ... January and February 1991, generally show similar pattern. The proportion of bigger individuals of krill ... than those in January. No larval fish were recorded in krill catches. Only few specimens of Electrona ... antarctica (of length range 53- 103 mm) were found in some night hauls. Author(s): I. Wójcik and R ...
Meeting Document : WG-KRILL-91/37 : Autor(es): I. Wójcik and R. Zaporowski (Poland)