Artificail Propagation Of Redline Torpedo Fish Sahyadria Denisonii, India

Abstract

The Redline Torpedo Fish (Sahyadria denisonii) is an ornamental fish species from India with high commercial and artistic value due to its unique characteristics, patterns, and colors. The wild population of S. denisonii has been overexploited for aquarium trade, resulting in the species being listed as endangered. The objective of this study was to identify effective inducing agents on broodstock maturation and feed types on growth performance from larvae to fry stages in artificial conditions. The experiment consisted of three groups: one that received no hormonal treatment, and two others that received hormonal treatments using LHRHa + Domperidon and Ovaprim hormones, respectively. Ovaprim hormone at a dosage of 0.4 mL per body weight was the most effective in inducing broodstock maturation. After 90 days of rearing, when fed a combination of Artemia nauplii with microworms or powder fish feed, the fry exhibited the greatest length and weight. The survival rate varied among the three treatments, with treatment 2 (Artemia nauplii with powder-fed fish at 35% crude protein) resulting in the highest survival rate (78.72%) compared to treatment 1 (Artemia nauplii + Micro worm) and treatment 3 (only powder fish feed). These findings demonstrate the successful artificial propagation of S. denisonii using suitable inducing hormones and feed types, and provide insights into the species' embryonic, larval, and fry life history phases. Furthermore, the study highlights the need for conservation efforts to protect endangered ornamental fish species from overexploitation.