Résultats de la recherche
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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 : Auteur(s): V.A. Sushin and A.S. Myskov (Russian Federation)
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Declining trend in the abundance of fjord fish of the species Notothenia rossii marmorata and Notothenia gibberifrons observed at two localities of South Shetland Islands
Abstract: A declining trend observed in the abundance of fjord fish of the species Notothenia ... rossii marmorata and Notothenia gibberifrons from two localities of South Shetland Islands, is analyzed ... ., Moon Bay, in 1989. The analysis was based on the proportion of catches of the mentioned species in ... . This phenomenon in the area might be explained as a consequence of the depletion of the stocks due to ...
Meeting Document : WG-FSA-90/14 : Auteur(s): E. Barrera-Oro and E. Marschoff (Argentina)
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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 : Auteur(s): S. Kasatkina (Russia)
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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 : Auteur(s): L. Pshenichnov, I. Slypko and K. Vyshniakova (Ukraine)
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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 : Auteur(s): Delegation of Japan
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Avoidance of incidental mortality of seabirds and the implementation of Conservation Measure 169/XVII in Statistical Subarea 88.1 in the 1998/99 season
Dissostichus spp. in Sub-area 88.1. Daylight setting was allowed south of 65°S in Sub-area 88.1 under special ... and rigorous monitoring of line sink rates. In the trials, two autoline vessels set weighted longlines ... were used to record the actual sink rate achieved on 30% of all sets. For all sets combined the average ... sink rate achieved was greater than the minimum required standard of 0.3 m/sec (mean = 0.37 m/sec, 1 ...
Meeting Document : WG-FSA-99/35 : Auteur(s): J. Molloy and N. Smith (New Zealand)
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SPATIAL AND TEMPORAL VARIATION IN ATTRIBUTES OF ADELIE PENGUIN BREEDING POPULATIONS: IMPLICATIONS FOR UNCERTAINTY IN ESTIMATION OF THE ABUNDANCE OF BREEDING PENGUINS FROM ONE-OFF COUNTS
Abstract: Broad-scale surveys of penguin breeding abundance generally rely on on-off counts of ... adults, nests or chicks across several or many breeding sites, and the timing of these counts is often ... outside the control of researchers. Time series counts of Adelie penguin breeding population attributes ... of the breeding season. Author(s): C. Southwell, J. McKinlay, R. Pike, D. Wilson, K. Newbery and L ...
Meeting Document : WG-EMM-PSW-08/07 : Auteur(s): C. Southwell, J. McKinlay, R. Pike, D. Wilson, K. Newbery and L. Emmerson (Australia)
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Comparison of the diet of the blue-eyed shag Phalacrocorax atriceps by the analysis of pellets and stomach contents
Abstract: A total of 45 pellets from the blue-eyed shag Phalacrocorax atriceps were collected in ... prey, followed by octopods, polychaetes and gastropods. Notothenia coriiceps formed the bulk of the ... the same colony; however, they differed in importance. A daily mean of 0.7 pellets per bird was ... collected, representing 255 g of fish. Correction factors previously estimated in a feeding trial were ...
Meeting Document : WG-EMM-95/79 : Auteur(s): Silva, P., Coria, N., Favero, M., Casaux, R.
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Cross-sectional structure and validation of the timing of annulus formation in otoliths of the Antarctic fish Notothenia coriiceps Richardson (Nototheniidae)
Abstract: To validate the timing of annuli in otoliths of immature Notothenia coriiceps ... Richardson. a time-series of samples were taken over a complete year. Light and scanning electron microscopy ... (SEM) techniques were used to examine the structure of sectioned otoliths. Six growth regions were ... identified in the otolith sections and micro-increments were also evident. The timing of growth and annual ...
Meeting Document : WG-FSA-93/6 Rev. 1 : Auteur(s): J.R. Ashford and M.G. White (United Kingdom)
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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 : Auteur(s): F.L. Schaafsma, Y. Cherel, H. Flores, J.A. van Franeker, M.A. Lea, B. Raymond and A.P. van de Putte