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dc.contributor.authorHonda, Rubens Tomio-
dc.contributor.authorFernandes-De-Castilho, Marisa-
dc.contributor.authorVal, Adalberto Luis-
dc.date.accessioned2020-06-15T22:02:02Z-
dc.date.available2020-06-15T22:02:02Z-
dc.date.issued2008-
dc.identifier.urihttps://repositorio.inpa.gov.br/handle/1/18529-
dc.description.abstractThe effects of cadmium exposure on both environment exploration and behavioral responses induced by alarm substance in matrinxã (Brycon amazonicus), a fish species endemic to the Amazon basin, were investigated. Fish exposed to 9.04 ± 0.07 μg/L waterborne cadmium for 96 h followed by 24 h depuration period in clean water, were video-recorded for 15 min, followed by immediate introduction of conspecific skin extract to the tank and a new 30 min period of fish video-recording. Cd-exposed matrinxã showed a significantly lowered locomotor activity (t-test t12 = 2.7; p = 0.025) and spatial distribution (t-test t12 = 2.4; p = 0.03) relative to the unexposed control fish prior to the alarm substance introduction, and did not present any significant reaction when the skin extract was introduced. The control fish, in opposite, showed a higher level of activity and spatial distribution prior the skin extract contact and significantly decreased their response after the chemical stimulus (locomotion-repeated-measure ANOVA F1,11 = 5.6; p = 0.04; spatial distribution F1,11 = 19.4; p = 0.001). In conclusion, exposure to a low level of cadmium affects both the environment exploration performance and the conspecific chemical communication in matrinxã. If the reduced environmental exploration performance of Cd-exposed fish is an adjustment to the compromised chemical communication or an independent effect of cadmium is the next step to be investigated. © 2008 Elsevier B.V. All rights reserved.en
dc.language.isoenpt_BR
dc.relation.ispartofVolume 89, Número 3, Pags. 204-206pt_BR
dc.rightsRestrito*
dc.subjectCadmiumen
dc.subjectAlarm Signalen
dc.subjectBehavioral Responseen
dc.subjectCadmiumen
dc.subjectChemical Cueen
dc.subjectCommunication Behavioren
dc.subjectEndemic Speciesen
dc.subjectLocomotionen
dc.subjectPollution Exposureen
dc.subjectSpatial Distributionen
dc.subjectTeleosten
dc.subjectWater Pollutionen
dc.subjectAnalysis Of Varianceen
dc.subjectBehavior, Animalsen
dc.subjectControlled Studyen
dc.subjectEnvironmental Impacten
dc.subjectFishen
dc.subjectLocomotionen
dc.subjectMatrinxãen
dc.subjectNonhumanen
dc.subjectPriority Journalen
dc.subjectSkinen
dc.subjectStatistical Significanceen
dc.subjectVideorecordingen
dc.subjectWater Contaminationen
dc.subjectAnimalen
dc.subjectBehavior, Animalsen
dc.subjectCadmiumen
dc.subjectFishesen
dc.subjectMotor Activityen
dc.subjectRandom Allocationen
dc.subjectSmellen
dc.subjectWater Pollutants, Chemicalen
dc.subjectAmazon Basinen
dc.subjectSouth Americaen
dc.subjectBryconen
dc.titleCadmium-induced disruption of environmental exploration and chemical communication in matrinxã, Brycon amazonicusen
dc.typeArtigopt_BR
dc.identifier.doi10.1016/j.aquatox.2008.07.001-
dc.publisher.journalAquatic Toxicologypt_BR
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