Chemical signalling during predator-prey relationship in the Nile Tilapia: from behavioural ecology to aquaculture

• Grant number: 10/11319-0
• Support Opportunities: Regular Research Grants
• Start date: January 01, 2011
• End date: December 31, 2012
• Field of knowledge: Agronomical Sciences - Fishery Resources and Fishery Engineering - Aquaculture
• Principal Investigator: Rodrigo Egydio Barreto
• Grantee: Rodrigo Egydio Barreto
• Host Institution: Instituto de Biociências (IBB). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil
• Associated researchers: Gilson Luiz Volpato ; Helton Carlos Delicio ; Percilia Cardoso Giaquinto

Abstract

Several species display antipredator reaction to chemical substances that mean pradator risk (the alarm substance and predator odour). The alarm substance is produced and stored in epidermal cell called 'club' cells. Thus, when a fish have its skin injured due to a predator attack this substance is released to the water eliciting na antipredator reaction in conspecific fish. Besides, the antipredator responses are induced by predator odour. In an ethological perspective, these phenomena have been well studied, but the applied aspects have been neglected, and deserve scientific investigations. Thus, in this proposal, the applicable potential for aquaculture of the chemically-induced antipredator responses will be assessed in the Nile tilapia. Specifically, as the main aspects of this proposal, we will evaluate if the antipredator responses induced by these olfactory cues mitigates the harmful effects of transportation in this fish species. (AU)

Scientific publications

(4)

(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)

CARRETERO SANCHES, FABIO HENRIQUE; MIYAI, CAIO AKIRA; PINHO-NETO, CANDIDO FERREIRA; BARRETO, RODRIGO EGYDIO. Stress responses to chemical alarm cues in Nile tilapia. Physiology & Behavior, v. 149, p. 8-13, OCT 1 2015. (10/11319-0, 11/03218-1)

PINHO-NETO, CANDIDO FERREIRA; MIYAI, CAIO AKIRA; CARRETERO SANCHES, FABIO HENRIQUE; GIAQUINTO, PERCILIA CARDOSO; DELICIO, HELTON CARLOS; GIL BARCELLOS, LEONARDO JOSE; VOLPATO, GILSON LUIZ; BARRETO, RODRIGO EGYDIO. Does sex influence intraspecific aggression and dominance in Nile tilapia juveniles?. Behavioural Processes, v. 105, p. 15-18, JUN 2014. (10/11319-0, 11/01973-7)

MIYAI, CAIO AKIRA; CARRETERO SANCHES, FABIO HENRIQUE; PINHO-NETO, CANDIDO FERREIRA; BARRETO, RODRIGO EGYDIO. Effects of predator odour on antipredator responses of Nile tilapia. Physiology & Behavior, v. 165, p. 22-27, OCT 15 2016. (11/03216-9, 10/11319-0)

BARRETO, RODRIGO EGYDIO; MIYAI, CAIO AKIRA; CARRETERO SANCHES, FABIO HENRIQUE; GIAQUINTO, PERCILIA CARDOSO; DELICIO, HELTON CARLOS; VOLPATO, GILSON LUIZ. Blood Cues Induce Antipredator Behavior in Nile Tilapia Conspecifics. PLoS One, v. 8, n. 1, JAN 18 2013. (10/11319-0)