The effect of temperature on trophic discrimination of stable isotopes (13C and 15N) and biokinetics in cyprinid fish.

The effect of temperature on trophic discrimination of stable isotopes (13C and 15N) and biokinetics in cyprinid fish. | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 25 February 2025 V1 Latest version Share on The effect of temperature on trophic discrimination of stable isotopes (13C and 15N) and biokinetics in cyprinid fish. Authors : Kuklina , J. Kubec , P. Balzani , T.B. Meador , Martin Kainz 0000-0002-2388-1504 , M. Buřič , and L. Veselý 0000-0002-0886-4298 [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.174048865.54323956/v1 205 views 136 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Stable isotope analysis (SIA) provides essential information step toward a better understanding of trophic ecology. However, the interpretation of SIA results relies on assumptions about the trophic discrimination factor (TDF) that aims to improve the accuracy but may lead to bias. In aquatic ecosystems, most biota are poikilothermic organisms, thus temperature is one of the most important parameters affecting all biological processes, including trophic discrimination of stable isotopes. Therefore, we conducted an experiment to establish TDF for freshwater fish under different temperature regimes (15, 25 °C, and natural ambient pond temperatures from July to September). We used common carp ( Cyprinus carpio , L., 1758) as a model organism. In the first phase of the experiment (weeks 1-6), all fish were fed by a defined fish feed to establish a baseline isotopic signal for all individuals. In the second phase (weeks 7-18), fish were randomly divided into three temperature groups and were all fed by different fish feed. Results indicated temperature dependent TDF, whereby nitrogen showed higher temperature dependency, where highest TDF were observed in 15 °C group and lowest in 25 °C group. In than carbon, where equilibrium of muscle isotopic value of was reached only in the natural, ambient temperature regime. Presumably, discrimination of nitrogen isotopes was related to metabolic turnover rates, where all values were significant, while in carbon only significant values was found in natural, ambient temperature regime These findings highlight the importance of considering environmental thermal conditions in evaluating stable isotope signatures in trophic studies. Supplementary Material File (vesely et al. after coll.docx) Download 2.80 MB Information & Authors Information Version history V1 Version 1 25 February 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords biokinetic carbon carp nitrogen trophic discrimination factor Authors Affiliations Kuklina Jihoceska Univerzita v Ceskych Budejovicich Jihoceske vyzkumne centrum akvakultury a biodiverzity hydrocenoz View all articles by this author J. Kubec Jihoceska Univerzita v Ceskych Budejovicich Jihoceske vyzkumne centrum akvakultury a biodiverzity hydrocenoz View all articles by this author P. Balzani Jihoceska Univerzita v Ceskych Budejovicich Jihoceske vyzkumne centrum akvakultury a biodiverzity hydrocenoz View all articles by this author T.B. Meador Biologicke centrum Akademie ved Ceske republiky Ustav pudni biologie View all articles by this author Martin Kainz 0000-0002-2388-1504 WasserCluster Lunz - Biologische Station GmbH View all articles by this author M. Buřič Jihoceska Univerzita v Ceskych Budejovicich Jihoceske vyzkumne centrum akvakultury a biodiverzity hydrocenoz View all articles by this author L. Veselý 0000-0002-0886-4298 [email protected] Jihoceska Univerzita v Ceskych Budejovicich Jihoceske vyzkumne centrum akvakultury a biodiverzity hydrocenoz View all articles by this author Metrics & Citations Metrics Article Usage 205 views 136 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Kuklina, J. Kubec, P. Balzani, et al. The effect of temperature on trophic discrimination of stable isotopes (13C and 15N) and biokinetics in cyprinid fish.. Authorea . 25 February 2025. DOI: https://doi.org/10.22541/au.174048865.54323956/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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