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- Title
Exotic plus native: findings in an unscheduled fish duoculture.
- Authors
Julián Palma-Cancino, David; Rafael Basto-Rosales, Mao Ernesto; Alfonso Álvarez-González, Carlos; Martínez-García, Rafael; Badillo-Zapata, Daniel; Chong-Carrillo, Olimpia; Vega-Villasante, Fernando
- Abstract
The development of native fish aquaculture represents an important alternative to mitigate ecological displacement generated by exotic fish. The introduction of native fish in polyculture systems with high commercial value fishes has provided a useful strategy for sustainable aquaculture development. The present study aims to provide information on tilapia, as an exotic species, and Dormitator latifrons, as a native species, in a duo culture not programmed as such. Using juveniles of Pacific fat sleeper D. latifrons leftovers from another experiment, we decide to analyze and report the biological feasibility of a duoculture system with this species and Nile tilapia (Oreochromis niloticus). Two hundred fifty organisms of each species were placed for 90 days in a concrete tank with a capacity of 50 m3 to evaluate the compatibility of these species. The biological variables measured were growth, survival, feed conversion rate, and protein efficiency. The findings suggest a good interaction between species, with adequate growths and a survival rate of 98%. No antagonistic behavior was observed during confinement, suggesting the duoculture of these species may represent a good alternative for tropical sustainable aquaculture.
- Subjects
NILE tilapia; FISH farming; SUSTAINABLE aquaculture; SURVIVAL rate; NATIVE fishes; FISHERIES
- Publication
Latin American Journal of Aquatic Research, 2021, Vol 49, Issue 4, p649
- ISSN
0718-560X
- Publication type
Article
- DOI
10.3856/vol49-issue4-fulltext-2674