The impact of long-term reduced access to cleaner fish on health indicators of resident client fish.

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State: Public
Version: author
License: All rights reserved
Serval ID
serval:BIB_8E69BB5A1E55
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
The impact of long-term reduced access to cleaner fish on health indicators of resident client fish.
Journal
The Journal of experimental biology
Author(s)
Ros AFH, Nusbaumer D., Triki Z., Grutter A.S., Bshary R.
ISSN
1477-9145 (Electronic)
ISSN-L
0022-0949
Publication state
Published
Issued date
15/12/2020
Peer-reviewed
Oui
Volume
223
Number
24
Pages
1-10
Language
english
Notes
Publication types: Journal Article
Publication Status: aheadofprint
Abstract
In many mutualisms, benefits in the form of food are exchanged for services such as transport or protection. In the marine cleaning mutualism, a variety of "client" reef fishes offer "cleaner" fish Labroides dimidiatus access to food in the form of their ectoparasites, where parasite removal supposedly protects the clients. Yet, the health benefits individual clients obtain on the long-term from repeated ectoparasite removal remain relatively unknown. Here, we tested whether long-term reduced access to cleaning services alter indicators of health status such as body condition, immunity and the steroids cortisol and testosterone in four client damselfish species Pomacentrus amboinensis, Amblyglyphidodon curacao, Acanthochromis polyacanthus, and Dischistodus perspicillatus To do so, we took advantage of a long-term experimental project in which several small reefs around Lizard Island (Great Barrier Reef, Australia) were maintained cleaner-free since the year 2000; while control reefs had their cleaner presence continuously monitored. We found that the four damselfish species from reef sites without cleaners for 13 years had lower body condition than fish from reefs with cleaners. However, immunity measurements and cortisol and testosterone levels did not differ between experimental groups. Our findings suggest that clients use the energetic benefits derived from long-term access to cleaning services to selectively increase body condition, rather than altering hormonal or immune system functions.
Keywords
Cleaning mutualism, Condition, Cortisol, Immunocompetence, Reef fish, Testosterone
Pubmed
Open Access
Yes
Create date
23/11/2020 15:38
Last modification date
18/02/2021 8:09
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