Winter, E.R. and Britton, J.R., 2021. Individual variability in stable isotope turnover rates of epidermal mucus according to body size in an omnivorous fish. Hydrobiologia, 848, 363-370.
Full text available as:
|
PDF (OPEN ACCESS ARTICLE)
Winter-Britton2021_Article_IndividualVariabilityInStableI.pdf - Published Version Available under License Creative Commons Attribution. 358kB | |
Copyright to original material in this document is with the original owner(s). Access to this content through BURO is granted on condition that you use it only for research, scholarly or other non-commercial purposes. If you wish to use it for any other purposes, you must contact BU via BURO@bournemouth.ac.uk. Any third party copyright material in this document remains the property of its respective owner(s). BU grants no licence for further use of that third party material. |
DOI: 10.1007/s10750-020-04444-2
Abstract
Epidermal mucus (‘mucus’) is increasingly applied to fish ecological studies based on stable isotope analysis (SIA) due to its non-invasive collection. However, knowledge on mucus SI turnover rates of individual fish remains limited, including uncertainty over how they are influenced by fish body sizes. Here, a diet switch experiment predicted mucus SI turnover rates (δ13C and δ15N) as a function of time using samples taken over 200 days from 10 individually tagged common carp Cyprinus carpio covering two size groups. Non-linear mixed effects models revealed rapid turnover of both δ13C and δ15N (T50: 2–5 days; T95: 9–22 days); δ15N turnover rates were slower for the larger cohort, while δ13C turnover rates were independent of body size. Within size groups, turnover rates were not expected to vary between individuals. These experimental results suggest that due to these fast turnover rates, epidermal mucus can provide insights into the diets of fish over very short timeframes, although for δ15N the body size of the fish needs consideration.
Item Type: | Article |
---|---|
ISSN: | 0018-8158 |
Uncontrolled Keywords: | half-life; isotopic incorporation; diet switch; non-invasive sampling; trophic discrimination factor |
Group: | Faculty of Science & Technology |
ID Code: | 34790 |
Deposited By: | Symplectic RT2 |
Deposited On: | 09 Nov 2020 13:50 |
Last Modified: | 14 Mar 2022 14:24 |
Downloads
Downloads per month over past year
Repository Staff Only - |