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Title: Using stable isotope analysis to study skin mucus exudation and renewal in fish
Author: Ibarz i Valls, Antoni
Ordóñez-Grande, Borja
Sanahuja Piera, Ignasi
Sánchez Nuño, Sergio
Fernández Borrás, J. (Jaume)
Blasco Mínguez, Josefina
Fernández-Alacid, Laura
Keywords: Isòtops
Issue Date: 1-Apr-2019
Publisher: The Company of Biologists
Abstract: Fish skin mucus is proposed as a novel target for the study of physiological condition and to conduct minimally invasive monitoring of fish. Whereas mucus composition has been a major interest of recent studies, no practical techniques have been proposed to gain understanding of the capacity and rhythm of production and exudation. Here, we used stable isotope analysis (SIA) with a labelled meal, packaged in gelatine capsules, to evaluate mucus production and renewal in a fish model, the gilthead sea bream (Sparus aurata). Mucus 13C- and 15N-enrichment reached higher levels at 12 h post-ingestion without significant differences at 24 h. When the formation of new mucus was induced, 13C-enrichment in the new mucus doubled whereas 15N-enrichment only increased by 10%. These results indicate the feasibility of adopting SIA in mucus studies and allow us to propose this methodology as a means to improve knowledge of mucus turnover in fish and other animals.
Note: Reproducció del document publicat a:
It is part of: Journal of Experimental Biology, 2019, vol. 222, num. 8
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ISSN: 0022-0949
Appears in Collections:Articles publicats en revistes (Biologia Cel·lular, Fisiologia i Immunologia)

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