A shortcut method for sexing juvenile European sea bass, Dicentrarchus labrax L.
This is the manuscript version. Published version available at http://dx.doi.org/10.1111/j.1365-2109.2004.01181.x (PDF)
ForfatterMenu, B; Peruzzi, Stefano; Vergnet, A; Vidal, MO; Chatain, B
The objective of this study was to develop a rapid and effective method of sexing juvenile sea bass with minimum labour and material.To this end, the gonad squash mount technique was applied along with macroscopic techniques for sexing a large number of experimental fish at the age of 215-275 days post fertilization (p.f.). At this age, 90% of the 3894 fish could be unambiguously sexed by macroscopic examination of their gonads, whereas the remaining proportion was identified using squash mount preparations (10%). The accuracy of the observations was measured up to classical histology procedures. Undifferentiated gonads accounted for 0.1% of the total population only.The application of the squashmount technique holds out the prospect of considerable improvement in the efficiency and rapidity of current sexing techniques in sea bass.
SiteringAquaculture Research 36(2005) s. 41-44
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