Résultats de la recherche
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Age and growth of Scotia Sea icefish Chaenocephalus aceratus (Lönnberg, 1906), from the South Shetland Islands
from different institutions. The age range was 1-17 years for females and 1- 15 years for males. Von ... Bertalanffy growth curves were fitted to the estimated age-length data for each sex. The estimated values of ... asymptotic length L??(cm) and K (year-1) were respectively 79.8 and 0.07 for females and 60.0 and 0.09 for ... species. Overall, 357 specimens ranging from 13 and 67 cm (TL) were selected for the present study. Ages ...
Meeting Document : WG-FSA-02/77 : Auteur(s): M. La Mesa, J. Ashford, E. Larson and M. Vacchi
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Preliminary studies on age and growth of Dissostichus eleginoides in the Ob-Lena Bank
females. Five to eighteen years gave large contribution to the total age groups for both sexes. Females ... were estimated. The estimated ages ranged from 5 to 46 years for males and from 5 to 50 years for ... Abstract: Preliminary studies on the age and growth of Dissostichus eleginoides sampled in the ... generally identified within the primordium and thus many of age counts were overestimated. We would recount ...
Meeting Document : WG-FSA-10/48 : Auteur(s): K. Taki, M. Kiyota and T. Ichii (Japan)
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Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
maximum age was 14 years, but this should be regarded as a conservative estimate of longevity because of ... respectively) produced estimated ages at maturity of 6–7 years for males and 8–11 years for females. These ... , producing uncertain age estimates. Furthermore, annual deposition of thorn bands has not been validated. The ... provided for females, males, and both sexes combined. There was no obvious difference between the sexes, so ...
Meeting Document : WG-FSA-04/29 : Auteur(s): M.P. Francis and C. Ó Maolagáin (New Zealand)
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The age structure and growth rate of Patagonian toothfish (Dissostichus eleginoides) at South Georgia
. Evidence for the separation of early year classes is presented along with mean sizes for each age class ... Abstract: New length-at – age data for South Georgia toothfish are presented from a range of ... . Age length keys indicate that fish enter the fishery at 7 years and are fully recruited at between 10 ... and 11 years. Author(s): M. Belchier (United Kingdom) Title: The age structure and growth rate of ...
Meeting Document : WG-FSA-04/86 : Auteur(s): M. Belchier (United Kingdom)
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Preliminary results of age determination of the Dissostichus spp. from the longline catches in 48.2 Subarea (2015, SIMIIZ)
prevailed: their age ranged from 15 to 35 years for both species. Author(s): Delegation of Ukraine Title ... sampled; one otolith from each pair was used for age determination. Preliminary results of age ... Abstract: Age determination of the Patagonian (Dissostichus eleginoides) and Antarctic toothfish ... determination of the caught fish showed that, in the studied fishing area, specimens of older age groups ...
Meeting Document : WG-FSA-15/46 : Auteur(s): Delegation of Ukraine
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Age and growth in length of Micromesistius australis, Norman, 1937 (Pisces, Gadidae), in the southern zone of the Argentine Sea
)] giving Lt in cm and t in years. For the estimation of the general equation parameters the first 15 age ... respectively. For the interpretation of the growth rings, the otoliths were previously subjected to the ... paraffin inclusion and cutting technique. A distribution of length frequencies for each sex was made. A ... nearly linear relation between the otolith length and the fish total length was obtained, for which the ...
Meeting Document : SC-CAMLR-V/BG/31 : Auteur(s): Delegation of Argentina
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A Comparison Between Age Determinations of the Antarctic Fish Notothenia gibberifrons Lönnberg Using Scales and Otoliths
derived from scales are approximately 30% greater than predictions utilising age data derived from ... were interpreted 60% of scale readings and 30% separate and simultaneous interpretations. Estimates of ... age tend to be lower when made from scales. Predictions of yield per recruit utilising age data ... ) Title: A Comparison Between Age Determinations of the Antarctic Fish Notothenia gibberifrons Lönnberg ...
Meeting Document : WG-FSA-89/13 : Auteur(s): R. Coggan (United Kingdom), K. Skora (Poland), A. Murray and M. White (United Kingdom)
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Mackerel icefish size and age at South Georgia and Shag Rocks
(Spring). Mean total lengths (TL) of age-classes were determined for each year by examining length ... not statistically different. Age-class 1 was found for all surveys at South Georgia but was absent for ... of age-classes were standardized to a common day of the year (16 January) based on the Bertalanffy ... 3 years at Shag Rocks, potentially indicating greater recruitment variability at Shag Rocks. Age ...
Meeting Document : WG-EMM-03/7 : Auteur(s): A.W. North (United Kingdom)
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Validation of age determination in Notothenia coriiceps, by means of a tag-recapture experiment at potter cover, South Shetland Islands
closely spaced sclerites zones, which corresponded with an elapse of two winter seasons. The comparative ... ): E.R. Barrera-Oro and R.J. Casaux (Argentina) Title: Validation of age determination in Notothenia ... Shetland Islands, in successive years from 1989 to 1992, 9 were recaptured at the same site after periods ...
Meeting Document : WG-FSA-94/12 : Auteur(s): E.R. Barrera-Oro and R.J. Casaux (Argentina)
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Exploring age and growth dynamics of a historically overfished Sub-Antarctic fish species: The grey rockcod (Lepidonotothen squamifrons) in the vicinity of Heard Island and McDonald Island
, condition, selectivity and age structure. Using otoliths, maximum age estimates have increased by 5 years to ... elucidated for the first time. Author(s): D. Maschette, D.C. Welsford and C. Gardner (Australia) Title ... : Exploring age and growth dynamics of a historically overfished Sub-Antarctic fish species: The grey rockcod ...
Meeting Document : WG-FSA-15/51 : Auteur(s): D. Maschette, D.C. Welsford and C. Gardner (Australia)