Update of ongoing work on age and growth of Antarctic toothfish (Dissostichus mawsoni) from Division 58.4.1 by Spain
2017
López-Abellán, L.J. (Luis José) | Santamaría, M.T.G. (María Teresa García) | Sarralde-Vizuete, R. (Roberto) | Barreiro-Jueguen, S. (Santiago)
We present preliminary results on age and growth of Dissostichus mawsoni for thethird season (2015/16) of the Spanish research fishing in the 58.4.1 Division obtainedfor growth rings on otolith readings. It is included the growth parameters estimatesby sex. Growth parameters obtained using length-age pair values are: L∞: 208.2, k:0.074 and t0: 0.564 for females; L∞: 173, k: 0.089 and t0: -0.1771 for males; and L∞:226.4, k: 0.05673 and t0: -0.745 all combined. Values differ with the previousestimates, and comparisons are made between seasons all seasons together as well aswith the parameter values used in the Ross sea assessment.
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