Effects of preservation by ethanol on <scp>δ 13 C</scp> and <scp>δ 15 N</scp> of three tissues of the critically endangered <scp>European</scp> eel Anguilla anguilla

The temporal effects of ethanol preservation on the δ13C and δ15N values of tissues excised from European eel Anguilla anguilla were assessed. Preservation significantly enriched 13C values of fin and mucus but not dorsal muscle. The 13C enrichment occurred in the initial 15 days of preservation and...

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Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: Boardman, RM, Pinder, AC, Piper, AT, Gutmann Roberts, Catherine, Wright, RM, Britton, JR
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2023
Subjects:
Anguillid
chemical preservation effects
critically endangered
stable isotope analysis
trophic ecology
Animals
Anguilla
Ethanol
Preservation
Biological
Anguilla anguilla
Online Access:https://pearl.plymouth.ac.uk/handle/10026.1/21114
https://doi.org/10.1111/jfb.15394
Description
Summary:The temporal effects of ethanol preservation on the δ13C and δ15N values of tissues excised from European eel Anguilla anguilla were assessed. Preservation significantly enriched 13C values of fin and mucus but not dorsal muscle. The 13C enrichment occurred in the initial 15 days of preservation and was independent of initial eel mass. Tissue preservation effects on δ15N values were negligible. These tissue-specific isotopic shifts should be considered when ethanol-preserved eel samples are used.

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