Chemical communication of predation risk in zebrafish does not depend on cortisol increase

被引：25

作者：

Barcellos, Leonardo J. G. ^{[1
]}

Koakoski, Gessi ^{[2
]}

da Rosa, Joao G. S. ^{[2
]}

Ferreira, Daiane ^{[2
]}

Barreto, Rodrigo E. ^{[3
]}

Giaquinto, Percilia C. ^{[3
]}

Volpato, Gilson L. ^{[3
]}

机构：

[1] Univ Passo Fundo, Curso Med Vet, Programa Grad Bioexpt, BR-99001970 Casca, RS, Brazil

[2] Univ Fed Santa Maria, Programa Posgrad Farmacol, Santa Maria, RS, Brazil

[3] UNESP, Biosci Inst, Dept Physiol, Res Ctr Anim Welf RECAW,Caunesp, BR-18618970 Botucau, SP, Brazil

来源：

SCIENTIFIC REPORTS | 2014年 / 4卷

关键词：

CONSPECIFIC SKIN EXTRACT; PHYSIOLOGICAL-RESPONSES; ALARM CUES; DISTURBANCE; STRESS; FISH;

D O I：

10.1038/srep05076

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We investigated chemical cues among groups of zebrafish (Danio rerio) when communicating information about the risk of predation. We found that visual cues of the predator (tiger Oscar, Astronotus ocellatus) did not increase whole-body cortisol levels in groups of zebrafish but that water conditioned by these (donor) zebrafish stressed (target) conspecifics, thereby increasing whole-body cortisol. This finding was confirmed when these zebrafish groups were in different aquaria and communicated exclusively via water transfer. This result indicates that the stress induced in the target zebrafish does not depend on an increase in whole-body cortisol levels in the donor zebrafish. Because cortisol participation is rejected in this predation-risk communication, other chemicals from the stress systems should be investigated.

引用

页数：7

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