Morphological malformations of the sea bass (Dicentrarchus labrax): Comparison between hormone injected and non-injected fish

Tan S., Bulut M., Bilen S.

IRANIAN JOURNAL OF FISHERIES SCIENCES, vol.14, no.1, pp.130-135, 2015 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 14 Issue: 1
  • Publication Date: 2015
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.130-135
  • Çanakkale Onsekiz Mart University Affiliated: Yes


In this study, fertilization, hatching and deformation rate of the eggs, and larvae obtained from hormone injected (HI) and non-injected broodstock (NHI), were determined. In the experiment, no differences were observed in the groups' fertilization rates (p>0.05). Hatching rate was found higher in the HI group (p<0.05). During the experiment, malformations such as spinal fluid accumulation, saddleback, air-bladder deformation and general body deformations were observed in both groups. For the NHI group, saddleback rate was found 5.13 +/- 0.55 %, air-bladder deformation rate was found 1.43 +/- 0.13%, spinal fluid accumulation was found 2.33 +/- 1.33% and general body deformation rate was found 3.76 +/- 0.23 % (p<0.05). As a result, it was determined that the deformation rate increased with hormone injection (p<0.05).