Resultados de la búsqueda
-
Review of small-scale research unit boundaries used for the assessment and management of D. mawsoni in Subarea 88.1
Abstract: This paper provides a review of the boundaries of the small scale research units (SSRUs ... boundaries we considered the physical and geographical features of the Subarea including the impact of sea ... ice on fishing practices, as well as the distribution and abundance of the target and bycatch species ... other boundaries of the other four SSRUs are changed to reflect the underlying bathymetry, species ...
Meeting Document : WG-FSA-03/29 : Autor(es): S.M. Hanchet (New Zealand)
-
Analysis of longline fleet operation on the Patagonian toothfish (Dissostichus eleginoides) in the subarea of the South Georgia Island (48.3) in 1989–2003
Abstract: The main characteristics of Patagonian toothfish (Dissostichus eleginoides) catch ... . Taken the intensity of fleet operation as an example in the sub-area, it was confirmed a decrease in ... decrease in catch per unit value and necessity of the more attentive approach to the assessment of the ... state of the toothfish population in this area of traditional fishing and more precautionary approach to ...
Meeting Document : WG-FSA-03/98 : Autor(es): N.V. Kokorin and A.F. Petrov (Russia)
-
Review of management boundaries (SSRU’s) and biological parameters used for the assessment of D. mawsoni in Subarea 88
Abstract: This paper provides a review of the boundaries of the small scale research units used ... boundaries we considered the physical and geographical features of the Subarea including the impact of sea ... ice on fishing practices, as well as the distribution and abundance of the target and bycatch species ... other boundaries of the other four SSRUs are changed to reflect the underlying bathymetry, species ...
Meeting Document : WG-FSA-SAM 03/8 : Autor(es): P. Horn and S. Hanchet (New Zealand)
-
Fish Heaven 2.0: summary of modifications and additions to earlier versions and illustrations of its application as a tool for evaluating fisheries management systems
examples of its application as a tool for evaluating fisheries management systems. As in previous years ... there have been numerous small changes and additions to the functionality of the program. This note ... range of models to be constructed and explored. The application of Fish Heaven as an evaluation tool is ... illustrated by some examples of how Catch Per Unit Effort performs as an indicator of abundance under simple ...
Meeting Document : WG-FSA-SAM 03/15 : Autor(es): I. Ball (Australia)
-
Incident of Antarctic krill (Euphausia superba) mass infection near the coasts of South Georgia Island (Subarea 48.3)
Abstract: In the north-eastern part of South Georgia Island shelf (Subarea 48.3) on 30 July 2001 ... by the disease that had not been described earlier. In the period of winter and spring some males and ... females Euphasia superba of all size groups- from 27 to 52 cm- were affected. From winter to spring the ... percentage of krill invasion increased 2.3 times. In shelf zone and on the continental slope of the South ...
Meeting Document : WG-EMM-02/13 : Autor(es): M.S. Savich (Ukraine)
-
Stock assessment of the Patagonian toothfish, Dissostichus eleginoides, harvested by the French fishery at Kerguelen Islands (Division 58.5.1 of the CCAMLR)
Abstract: A stock assessment of the Patagonian toothfish (Dissostichus eleginoides) at Kerguelen ... Island (division 58.5.1 of the CCAMLR) was undertaken with the modeling software CASAL, using different ... unit effort of the commercial fishery, tagging survey, sample size frequencies… CASAL is a simple ... population-modeling tool, applied to a single area and based on sex combination. The spatial complexity of ...
Meeting Document : WG-FSA-11/28 : Autor(es): A. Relot-Stirnemann (France)
-
TIMING OF CLUTCH INITIATION IN PYGOSCELIS PENGUINS ON THE ANTARCTIC PENINSULA: TOWARDS AN IMPROVED UNDERSTANDING OF OFF-PEAK CENSUS CORRECTION FACTORS
through the breeding cycle. In this paper we present an analysis relating to both of these two challenges ... that preclude nest censuses being conducted at the peak of egg laying as established by the CCAMLR ... Ecosystem Monitoring Program (CEMP) (Scientific Committee for the Conservation of Antarctic Marine Living ... knowing 1) how the census is timed relative to the peak of egg laying and 2) how nest numbers change ...
Meeting Document : WG-EMM-PSW-08/15 : Autor(es): H.J. Lynch, W.F. Fagan, R. Naveen, S.G. Trivelpiece and W.Z. Trivelpiece (USA)
-
Note on maturity of krill in relation to interannual fluctuations of food environment in the seas around the South Shetland Islands
Abstract: Relationship between food environment and maturity of krill around the South Shetland ... fraction larger than 2um was high, feeding activity of krill was also high in the natural environment. 5 ... years data from commercial krill trawlers indicates that percentages of occurrence of gravid female was ... high when the feeding activity of the krill was high through out the season. Therefore, interannual ...
Meeting Document : WG-KRILL-93/27 : Autor(es): M. Naganobu and S. Kawaguchi (Japan)
-
Analysis of maturity of Antarctic toothfish in the Amundsen Sea
Abstract: The results of the comparative histological analysis of the Antarctic toothfish ... 2007 are presented. The morphological parameters, indices of gonads, condition by Fulton and ... cytological parameters of oocytes have been described. Antarctic toothfish ovaries reached mainly the late III ... (57.1%) in 2006 and IV stages of maturity (83.3 %) in 2007 and testes – the IV stage (55%) in 2007. In ...
Meeting Document : WG-FSA-10/50 : Autor(es): S.V. Piyanova and A.F. Petrov (Russia)
-
Spatial and temporal distribution patterns of acoustic backscatter in the New Zealand sector of the Southern Ocean
Abstract: Mid-trophic level organisms (MTLO) of open-ocean marine ecosystems play a key role ... linking primary and tertiary consumers. Despite their importance, characterisation of MTLO is limited due ... from vessels of opportunity transiting across the Southern Ocean between New Zealand and the Ross Sea ... provided the opportunity to study distribution and abundance of MTLO over 7 yr. Analyses were performed to ...
Meeting Document : WG-EMM-18/P06 : Autor(es): P.C. Escobar-Flores, R.L. O’Driscoll and J.C. Montgomery