Search results
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Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia
of changing mean length at depth with month was detected, suggesting movement of animals both up and down ... slope at particular times of year. Months with a high mean length at depth are May and August ... position. Pre-spawning animals appear to be distributed all around the South Georgia and Shag Rocks shelf ... slopes. Spent animals of both sexes appear to move up slope to shallower water, and are concentrated ... at smaller sizes, and younger ages, than females (first maturity for males is usually at age 4, females ... at age 10; Moreno, 1998). The size at 50% maturity (L50'x,) in 1998 calculated from our data was 75 cm ... of animals both up and down slope at particular times of year. Months with a high mean length at depth ... and 1200 m depth) and not by geographical position. Pre-spawning animals appear to be distributed all ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Author(s): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce
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Fishery Reports 2011
). The Fishery Reports for 2011 (Appendices D to R) were published in English only. Appendix Title APPENDIX ... Reports for 2011 (Appendices D to R) were published in English only. Appendix Title ...
Page : Site Section: Publications
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Contribution to knowledge on age and growth of Antarctic toothfish (Dissostichus mawsoni) from Division 58.4.1
Abstract: A summary of progress made regarding the ageing and growth studies for Dissostichus ... and the interpretation criteria applied on age estimation, as well as the age-length key and growth parameters estimates ... by sex. Growth parameters obtained using length-age pair values are: L ∞: 154.4, k: 0.1399 and t 0: 1.321 ... : Contribution to knowledge on age and growth of Antarctic toothfish (Dissostichus mawsoni) from Division 58.4.1 ...
Meeting Document : WG-FSA-15/06 : Author(s): L.J. López-Abellán, M.T.G. Santamaría, R. Sarralde and S. Barreiro (Spain)
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Spatial distribution of Champsocephalus gunnari size and age are related with depth
to detect associations between the sizes of Champsocephalus gunnari (also age classes), Gobionotothen ... eleginoides and depth of catch, as well as among C. gunnari age classes. Except D. eleginoides median sizes ... of age I- present maximum difference with the older age classes at about 150 meters a result which might ... be used to fish different age fractions of the populations, thus regulating the age composition ...
Meeting Document : WG-FSA-97/45 : Author(s): Marschoff, E.R., Serra, J.A., Gonzalez, B., Calcagno, J.
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Update of ongoing work on age and growth of Antarctic toothfish (Dissostichus mawsoni) (2013-14 season) from Division 58.4.1 by Spain
Abstract: We present preliminary results on age and growth of Dissostichus mawsoni for the second ... on otolith readings. It is included the age-length key and growth parameters estimates by sex. Growth ... parameters obtained using length-age pair values are: L ∞: 175.7, k: 0.1078 and t 0: 1.528 for females ... . Santamaría, R. Sarralde and S. Barreiro Title: Update of ongoing work on age and growth of Antarctic ...
Meeting Document : WG-FSA-16/58 : Author(s): L.J. López-Abellán, M.T.G. Santamaría, R. Sarralde and S. Barreiro
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Letter from the Convener
, paragraph 3.108; CCAMLR-XXXII, paragraph 5.20). (iv) A review of progress on an integrated stock ... plans are year 1 or year 2 of a multi-year program, priority will be given to reviewing new proposals ... Dear WG-SAM participant, This year, the mid ... -year working group meetings of SC-CAMLR are to be held in Punta Arenas, Chile, with the Working Group ...
Document : Site Section: Meetings
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Age and Length Growth of Champsocephalus gunnari, Lonnberg 1905 (Pisces, Chaenichthyidae, in the Area of Elephant Island, West Zone, Antarctica
Abstract: In order to extend the knowledge on the age and growth of antarctic fishes, the authors ... to the Chaenichthyidae family, Champsocephalus gunnari. The age determination of this species, was made using the otolith ... fine cutting technique. Through the reading of the growth rings the age classes corresponding to3 ... )] Author(s): A.P. Tomo and E. Barrera-Oro (Argentina) Title: Age and Length Growth of Champsocephalus ...
Meeting Document : WG-FSA-85/11 : Author(s): A.P. Tomo and E. Barrera-Oro (Argentina)
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Revision of the commercial catch at age of the Antarctic icefish Champsocephalus gunnari over the period 1976/77 to 1990/91
Abstract: A revision of the calculation of total international catch at age of Champsocephalus ... gunnari over the period 1976/77 to 1990/91 is presented. This uses iterative application of two age length ... keys to obtain age distributions, according to a method described by Kimura and Chikuni (1987 ... ). It is proposed that the revised catch at age be used for future assessment of the C. gunnari fishery at South ...
Meeting Document : WG-FSA-93/29 : Author(s): G.B. Parkes (United Kingdom)
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Verification of the CMIX procedure on species with known age-length keys
Abstract: Calculation of age composition of density-at-length data produced during inventory ... Subarea 26. Age-length keys for 1995-2001 and length frequency data obtained during the surveys carried ... in the estimates of age composition proportions calculated using the CMIX method from those determined from age ... -length keys (ALK) computed based on the materials of direct age reading may be significant reaching 100 ...
Meeting Document : WG-FSA-SAM 03/5 : Author(s): P. Gasiukov (Russia)
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Revised research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Subarea 48.6 by South Africa and Japan
the recaptures were concentrated in the southern area. We considered that recaptures for 3 years at liberty ... the recaptures were concentrated in the southern area. We considered that recaptures for 3 years at liberty ...
Meeting Document : WG-FSA-16/32 Rev. 1 : Author(s): Delegations of Japan and South Africa