Résultats de la recherche

1. A preliminary assessment of age and growth of eel cod (Muraenolepis sp.) and violet cod (Antimora rostrata) in the Ross Sea, Antarctica

   estimated age of 9.5 years. Von Bertalanffy parameters derived from female and unsexed fish only are: L ... age of 41.5 years. Von Bertalanffy parameters derived from female and unsexed fish only are: L., 78.4 ... Abstract:  Samples of an eel cod (Muraenolepis sp.) and violet cod (Antimora rostrata) were ... obtained from the bycatch of the longline fishery for toothfish (Dissostichus mawsoni and D. eleginoides ...

   Meeting Document : WG-FSA-10/19 : Auteur(s): P.L. Horn and C.P. Sutton (New Zealand)

2. Length-age composition of icefish (Champsocephalus gunnari, perciformes, notothenioidei, Channichthyidae) from different locations of South Georgia Island subarea

   Ch.gunnari length-age composition structure at early years of life for fish inhabiting areas to the south of ... South Georgia Island Subarea. An analysis of Ch.gunnari length-age groups spatial distribution over ... have been used to study length-age composition of Champsocephalus gunnari from different locations of ... Eastern, Northern, Western, Southern Island Shelf and near Shag Rocks allowed for revealing similarity of ...

   Meeting Document : WG-FSA-00/32 : Auteur(s): Zh.A. Frolkina (Russia)

3. Age validation of juvenile Notothenia rossii at Potter Cove, South Shetland Islands, using mark-recapture data

   Abstract:  Among all validation methods of age determination in fish, release of known age and ... Notothenia rossii at Potter Cove, to validate, for first time for this species using this method, the ... principle of annual deposition of an annulus in scales and otoliths. Of 132 juvenile specimens (TL = 22.1 ... annulus was laid down, exhibiting an additional winter zone of closely spaced sclerites. Consistently, the ...

   Meeting Document : WG-FSA-13/P01 : Auteur(s): E. Moreira, E. Barrera-Oro and M. La Mesa

4. Age determination of Antarctic krill using size, fluorescence, and image analysis techniques

   constructed to relate the image analysis parameters to age approached 90% for the ages defined by length ... methods indicate 6 year classes for adult krill. Correspondence between the ages determined by the two ... frequency, and 52% for physiological age. Author(s):  M.S. Berman, A.L. McVey and G. Ettershank (USA) Title ... determined using length frequency analysis and the fluorescent age pigment (FAP) technique. Results of both ...

   Meeting Document : SC-CAMLR-VI/BG/48 : Auteur(s): M.S. Berman, A.L. McVey and G. Ettershank (USA)

5. Alternative method of the age composition assessment on the basis of surveys length data using mixture distributions

   the hypothesis of non-zero observations lognormal distribution for a large number of length groups ... Mare commonly used by CCAMLR in icefish age composition of abundance indices determination. To solve ... comparison of this method and the method by de la Mare for length series, estimated with Aitchison’s method ... tested on the length series obtained with the bootstrap method on the basis of the above mentioned ...

   Meeting Document : WG-FSA-05/78 : Auteur(s): P. Gasyukov (Russia)

6. Age Determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula Subarea (Subarea 48.1)

   cross sections proved to be the most reliable method. Mean length data at age presented here for Low I ... Abstract:  Age determination was carried out on Notothenia gibberifrons specimens collected at two ... compared in 19 Potter specimens. In some of them scale readings resulted one year greater. This could arise ... from the difficulty to differentiate false from annual checks in scales. Age determination by otolith ...

   Meeting Document : WG-FSA-88/15 : Auteur(s): E. Barrera-Oro (Argentina)

7. MODELLING ANTARCTIC KRILL: SCALE, MOVEMENT AND AGE‐STRUCTURE

   Abstract:  The organization, example outputs, and future objectives of an integrated, age ... ‐year data on size compositions from net tows and total biomass from hydroacoustics or net tows are ... being developed in stages to incorporate different data sources. Model estimates are incremented for ... time of year in which the data were collected, with multiple surveys at different times within a year ...

   Meeting Document : WG-EMM-11/43 Rev. 1 : Auteur(s): D. Kinzey, G. Watters and C. Reiss (USA)

8. Age, growth and size at sexual maturity of Macrourus carinatus from the CCAMLR fisheries in division 58.5.2

   Abstract:  Estimates of age and growth were determined from 156 Macrourus carinatus otolith ... for both sexes combined, resulting in values of: L8 = 635 mm, K = 0.088 and t0 =-1.8. The size at ... was 417 mm total length and the size at which 50% of the fish population have spawned for the first ... time, Lm50 was 512 mm total length. An updated length-weight relationship is provided from 633 ...

   Meeting Document : WG-FSA-02/48 : Auteur(s): E.M. van Wijk, R. Williams and A.J. Constable (Australia)

9. Age distribution of breeding female Antarctic fur seals in relation to changes in population growth rate

   1971-1973 was 7.41 (SE = 0.26) years and in 1988 it was 6.93 (SE = 0.20) years. After correction for ... age-dependent arrival time at the pupping beach in 1988, the mean age was 6.22 (SE = 0.14 years ... -1972. Exponential models fitted to the frequency distribution of age-classes greater than age 5 years ... Abstract:  The age distribution of breeding female Antarctic fur seals at Bird Island, South ...

   Meeting Document : WG-CEMP-91/21 : Auteur(s): I.L. Boyd, N.J. Lunn, P. Rothery and J.P. Croxall (United Kingdom)

10. AGE AND GROWTH OF SPINY ICEFISH, CHAENODRACO WILSONI REGAN, 1914, OFF JOINVILLE-D'URVILLE ISLANDS (ANTARCTIC PENINSULA)

    . Age at sexual maturity was estimated to be about 2 years for females and 2.5 years for males. Compared ... estimated age range was 1-5 for males and 1-4 for females of C. wilsoni. Applying the von Bertalanffy growth ... function to the age-length data, a growth curve was obtained for each sex. The estimated values of VB ... consisted mainly of adult specimens between 1 and 3 years of age, with very few older fish. Author(s):  M ...

    Meeting Document : WG-FSA-08/33 : Auteur(s): M. La Mesa, A. De Felice (Italy), C.D. Jones (USA) and K.-H. Kock (Germany)

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