Resultados de la búsqueda
-
Detection of anti-brucella antibodies in Weddell seals (Leptonychotes weddellii) from Cape Shirreff, Antarctica
’ S; 60º 27’ W), located on the Livingston Island (South Shetland Islands), Antarctica. Field work was ... de Medicina Preventiva Animal, Facultad de Ciencias Veterinarias y Pecuarias of the Universidad de ... Chile. The samples were tested by the conventional Rose Bengal test (RB) and two competitive enzymatic ... the etiology and their infection epidemiology in this region of the world. Author(s): O. Blank, P ...
Meeting Document : WG-EMM-01/48 : Autor(es): O. Blank, P. Retamal, P. Abalos and D. Torres (Chile)
-
Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)
) have been aged assuming that one translucent zone is formed annually in the otoliths of this species ... that the modes represented year classes and that one translucent zone is formed annually in otoliths of ... , sagittal otoliths were examined from D. mawsoni that had been injected with oxytetracycline some years ... indicates that one translucent zone is formed annually in otoliths of post-mature D. mawsoni. Otoliths from ...
Meeting Document : WG-FSA-02/33 : Autor(es): P.L. Horn, C.P. Sutton (New Zealand) and A.L. DeVries (USA)
-
Review of identity and biology of species of the family Macrouridae, from the CCAMLR fishery in the Ross Sea, Antarctica
males is 12 years and 46 cm TL, for females it was 14 years and 50 cm TL. Author(s): P.M. Marriott and ... geographic source of the aged sample. This confirms the preliminary age estimates from the ageing study ... their identity by NIWA researchers. Two species were found, Macrourus whitsoni and M. holotrachys. A ... previously aged sample from 1999 was confirmed as being M. whitsoni based on otolith comparisons and the ...
Meeting Document : WG-FSA-02/32 : Autor(es): P.M. Marriott and P. McMillan (New Zealand)
-
Lead-radium dating provides a framework for coordinating age estimation of Patagonian toothfish (Dissostichus eleginoides) between fishing areas
estimates range from approximately 20 to more than 50 years. In this study, lead-radium dating provided ... zones in transverse otolith sections, and longevity estimates exceeding 30 years. Lead-radium dating ... . 3.3 years was observed across estimated ages younger than 20 years. For the CAF, ages were ... fishing areas monitored by two facilities, Center for Quantitative Fisheries Ecology (CQFE) and the ...
Meeting Document : WG-FSA-11/P01 : Autor(es): A.H. Andrews, J.R. Ashford, C.M. Brooks, K. Krusic-Golub, G. Duhamel, M. Belchier, C.C. Lundstrom and G.M. Cailliet
-
Population subdivision and distribution of Euphausia superba in the region of the Antarctic Peninsula and adjacent waters in relation to fishery development
also off the Mordvinov Island. Seasonal coastward migrations (Siegel039;s suggestion) may actually ... ±41% and 1708±30% thousand tons in March and December-1984 respectively for the area south of 60°S ... Abstract: Analysis of original and literature data for the past 10 years pertaining to the region ... krill and the waters of two major circulation systems- those of the Weddell Sea and the Bellingshausen ...
Meeting Document : SC-CAMLR-VIII/BG/21 : Autor(es): Delegation of USSR
-
Focusing and testing fisher know-how to solve conservation problems: a common sense approach
, turtles and seabirds, can pose serious threats to specific animal populations causing public outcry and ... seabird mortality in two fisheries: the Puget Sound drift gillnet fishery for sockeye salmon and the ... model results in proof at two levels. At the practical level, fisher’s ideas are tested in the context ... regulatory, academic, and conservation communities. Author(s): E.F. Melvin and J.K. Parrish (USA) Title ...
Meeting Document : WG-FSA-03/20 : Autor(es): E.F. Melvin and J.K. Parrish (USA)
-
Review of biological parameters for Ross Sea skates
is 14 years. However this may be a considerable underestimate, and true longevity may exceed 20 years ... . Age at sexual maturity for A. georgiana is estimated to be about 6–7 years for males and 8–13 years ... Abstract: Biological parameters were reviewed and updated for the two main species of skates ... TL. Length at maturity of B. cf. eatonii is poorly determined, but is about 90–100 cm TL for males ...
Meeting Document : WG-FSA-06/31 : Autor(es): M.P. Francis (New Zealand)
-
Laboratory target strength measurements of free swimming Antarctic krill (Euphausia superba)
single animal insonifications. For mean length classes in the range [29.6, 36.2] mm the median single ... -animal target strengths are in the range [-76.7,-71.8] dB. Monte Carlo computer simulations were used to ... also presented. Author(s): Pauly, T., Penrose, J.D. Title: Laboratory target strength measurements of ...
Meeting Document : WG-EMM-97/75 : Autor(es): Pauly, T., Penrose, J.D.
-
Growth models for D. eleginoides for the Heard Island plateau region (Division 58.5.2) calibrated from otolith-based length at age data and validated using mark-recapture data
sample that were older than 20 years the general trend in the data of length with age did not exhibit ... unadjusted model. We also tried fixing the t0 and L? parameters of the VB model to give age zero length of 30 ... trawls for seasons where both fishing methods were used. Due to the small number of fish in the aged ... lengths from this VB curve and the 2-segment linear model were almost identical. Author(s): S.G. Candy, T ...
Meeting Document : WG-FSA-05/64 Rev. 1 : Autor(es): S.G. Candy, T. Lamb, A.J. Constable and R. Williams (Australia)
-
Rajid by-catch in the longline fishery for toothfish in Subarea 48.3
Rocks and South Georgia, achieved average catch rates of over 1 ray/thousand hooks, and 20-30 rays ... / thousand toothfish. Catch rates were lowest to the south and east of South Georgia. The two species most ... was 65-69cm for males and 80-84cm for females, for B. murrayi was 65-69cm and 70-74cm for males and ... females respectively. Author(s): D.J. Agnew, J. Taylor and I. Everson (United Kingdom) Title: Rajid by ...
Meeting Document : WG-FSA-99/40 : Autor(es): D.J. Agnew, J. Taylor and I. Everson (United Kingdom)