Effects of preservation by ethanol on δ13 C and δ15 N of three tissues of the critically endangered European eel Anguilla anguilla.

• Main Authors: Boardman, Rose M., Pinder, Adrian C., Piper, Adam T, Gutmann Roberts, Catherine, Wright, Rosalind M, Britton, J Robert
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2023
• Subjects: Anguilla anguilla
• Online Access: http://eprints.bournemouth.ac.uk/38432/; https://eprints.bournemouth.ac.uk/38432/1/Journal%20of%20Fish%20Biology%20-%202023%20-%20Boardman%20-%20Effects%20of%20preservation%20by%20ethanol%20on%20%2013C%20and%20%2015N%20of%20three%20tissues%20of%20the.pdf

The temporal effects of ethanol preservation on the δ13 C and δ15 N values of tissues excised from European eel Anguilla anguilla were assessed. Preservation significantly enriched δ13 C values of fin and mucus, but not dorsal muscle. The δ13 C enrichment occurred in the initial 15 days of preservation and was independent of initial eel mass. Tissue preservation effects on δ15 N values were negligible. These tissue-specific isotopic shifts should be considered when ethanol preserved eel samples are used.