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Predator control in Fisheries: Assessment of predator-induced biological changes in cultured Nile Tilapia


Fish farming systems are reasonably protected from lethal attacks from predators, but not in relation to non-lethal effects of such threat induced by chemical cues, as these cues freely circulate in cages. In this project, we focus on continuous effects of chemical cues that indicate that risk (alarm substances, disturbance substances kairomones and necromones) in variable of interest for livestocks (e.g. growth) and, if a possible effect take place, we will evaluate a possible connection with response to stress (cortisol). This is relevant because the continuous exposure to such stressors could induce morphological and functional changes in fish and therefore lead to the mobilization of energy and nutrients to anti-predator defenses, instead of muscle development (growth), which guides the animal production. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CARNEIRO, VICTORIA CRISTINA LUCIFERO; DELICIO, HELTON CARLOS; BARRETO, RODRIGO EGYDIO. Effects of stress-associated odor on ventilation rate and feeding performance in Nile tilapia. JOURNAL OF APPLIED ANIMAL WELFARE SCIENCE, v. N/A, p. 11-pg., . (16/19518-8)
ROZA E SILVA, MARIA LUIZA; PEREIRA, RAFAELA TORRES; ARVIGO, ALEXANDRE LUIZ; ZANUZZO, FABIO SABBADIN; BARRETO, RODRIGO EGYDIO. Effects of water flow on ventilation rate and plasma cortisol in Nile tilapia introduced into novel environment. AQUACULTURE REPORTS, v. 18, . (17/21594-7, 16/19518-8)

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