Evaluation of the aquaculture potential of Dormitator maculatus (Bloch, 1792) from the Alvarado lagoon, Veracruz, Mexico
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Castillo Márquez, Edna F
[2] ; Silva Reyna, Saul
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[1] Universidad Autónoma de Nayarit
Universidad Autónoma de Nayarit
México
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[2] Instituto Tecnológico de Boca del Río
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- Localización: Agro Productividad, ISSN-e 2594-0252, Vol. 17, Nº. 8, 2024 (Ejemplar dedicado a: Agosto), págs. 67-74
- Idioma: español
- Enlaces
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Resumen
Objective: The naca fish, Dormitator maculatus, is a species which commercial importance is based exclusively on the extraction of the mature gonads of the females, which reach a high price in the regional market as a gourmet dish. However, there is scarce information regarding its biology.
Design/methodology/approach: Their aquaculture potential (survival and growth) was evaluated in a recirculation system, in which the response in captivity of stages of their life cycle (treatments) were tested: T1=fry (8.35±2,83 g), T2= juveniles (17.22±5,13 g) and T3= adults (25.55±6,05 g), in triplicate, for 90 days. Measurements were performed every 15 days, the diet supplied was a commercial balanced feed for tilapia 3.5 mm in diameter (GrowFish® Protein 35%, fat 5.5%), at 1.5% of the biomass which was positively accepted.
Results: At the end of the experiment, it was observed that Treatment 1 (fry) presented a greater survival and growth. This result may be related to the fact that the species is very resistant to environmental changes in its natural environment.
Limitations on study/implications: However, this growth was slow, which may be since D. maculatus has a stationary diet Findings/conclusions: The results encourage more studies on its cultivation, such as the influence of environmental conditions on reproduction, which would help to mitigate the pressure on natural populations.