title: Analysis of individual versus group behavior of zebrafish: a model using pH sublethal effects.
abstract: An image analysis biomonitoring system was used to evaluate sublethal effects of pH on the mean swimming velocity of zebrafish. Responses to stress were tested comparing individual and group responses. Group analysis indicated no effect for all acid pH and for pH 9.0-9.5. Individual analysis indicated behavioral differences for most acid pH and higher than 9.5. Sensitivity to sublethal pH was best assessed when using individual analysis. Zebrafish decreased hyperactivity and increased hypoactivity with more acid or alkaline pH. Individual approach allowed to determine hyperactivity or hypoactivity and the species' thresholds of exposure, which is critical for the management of impairments.
authors.affiliation: Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, FIOCRUZ. Av Brasil 4.365, Manguinhos, Rio de Janeiro, RJ, 21045-900, Brazil. daniellypaiva@uol.com.br
authors.forename: Danielly de Paiva
authors.initials: Dde P
authors.lastname: Magalhães
authors.forename: Daniel Forsin
authors.initials: DF
authors.lastname: Buss
authors.forename: Rodolfo Armando
authors.initials: RA
authors.lastname: da Cunha
authors.forename: Ana Rosa
authors.initials: AR
authors.lastname: Linde-Arias
authors.forename: Darcilio Fernandes
authors.initials: DF
authors.lastname: Baptista
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D005260:Female; D006863:Hydrogen-Ion Concentration; D008297:Male; D008954:Models, Biological; D008956:Models, Chemical; D012919:Social Behavior; D012972:Sodium Hydroxide / Q000633:toxicity; D013464:Sulfuric Acids / Q000633:toxicity; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000633:toxicity*; D015027:Zebrafish
chemical_list: D013464:Sulfuric Acids; D014874:Water Pollutants, Chemical; D012972:Sodium Hydroxide; C033158:sulfuric acid