Forebrain neuropeptide regulation of pair association and behavior in cooperating cleaner fish

Cardoso, Sónia C., Grutter, Alexandra S., Paula, José R., André, Gonçalo I., Messias, João P., Gozdowska, Magdalena, Kulczykowska, Ewa and Soares, Marta C. (2015) Forebrain neuropeptide regulation of pair association and behavior in cooperating cleaner fish. Physiology & Behavior, 145 1-7. doi:10.1016/j.physbeh.2015.03.024

Author Cardoso, Sónia C.
Grutter, Alexandra S.
Paula, José R.
André, Gonçalo I.
Messias, João P.
Gozdowska, Magdalena
Kulczykowska, Ewa
Soares, Marta C.
Title Forebrain neuropeptide regulation of pair association and behavior in cooperating cleaner fish
Journal name Physiology & Behavior   Check publisher's open access policy
ISSN 1873-507X
Publication date 2015-06-01
Sub-type Article (original research)
DOI 10.1016/j.physbeh.2015.03.024
Volume 145
Start page 1
End page 7
Total pages 7
Place of publication Philadelphia, PA, United States
Publisher Elsevier
Language eng
Formatted abstract
Animals establish privileged relationships with specific partners, which are treated differently from other conspecifics, and contribute to behavioral variation. However, there is limited information on the underlying physiological mechanisms involved in the establishment of these privileged ties and their relationship to individual cooperation levels. The Indo-Pacific bluestreak cleaner wrasse Labroides dimidiatus often forages in mixed-sex pairs when cleaning fish clients. Intra-couple conflicts often arise during a joint client inspection, which may alter the overall quality of cleaning service provided. Here we tested two hypotheses: a) whether intra-pair association (i.e. association index), measured with joint interspecific cleaning and intraspecific behavior, is correlated with neuroendocrine mechanisms involving forebrain neuropeptides arginine vasotocin (AVT) and isotocin (IT) and b) whether these neuropeptide level shifts relate to an individual's interspecific service quality. We found that partner support (number of cleaning interactions and tactile stimulation) received by male cleaners increased with association index. When cleaners inspected clients alone, cleaners' cheating decreased with association index for females but not males. AVT levels did not differ according to sex or association level. Forebrain IT levels increased with association index for males, whereas no relationship was found for females. Finally, cleaner cheating varied between sex and forebrain IT levels. Findings indicate that variation in pairs' relationships influences male and female cleaner fish differently and contributes to the variation of brain neuropeptide levels, which is linked to distinct cooperative outcomes.
Keyword Arginine-vasotocin
Behavioral variation
Cleaner fish
Cooperative behavior
Male-female partnerships
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Biological Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 4 times in Thomson Reuters Web of Science Article | Citations
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