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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 02795naa a2200301 4500 | |
| 001 | oai:slubar.slu.se:122323 | |
| 003 | SwePub | |
| 008 | 240410s2023 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://res.slu.se/id/publ/1223232 URI |
| 024 | 7 | a https://doi.org/10.1016/j.aquatox.2023.1065422 DOI |
| 040 | a (SwePub)slu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Bundschuh, Mircou Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,University of Kaiserslautern-Landau (RPTU)4 aut0 (Swepub:slu)93534 |
| 245 | 1 0 | a Tracer or toxicant: Does stable isotope labeling affect central processes in aquatic food webs? |
| 264 | 1 | c 2023 |
| 264 | 1 | b Elsevier,c 2024 |
| 520 | a Stable isotope analysis (SIA) is an elementary technique in food web ecology, but its insights become increasingly ambiguous in complex systems. One approach to elevate the utility of SIA in such systems is the use of heavy isotope tracers (i.e., labeling). However, the fundamental assumption that the addition of such tracers does not affect in situ conditions has been challenged. This study tests if labeling is suitable for autotrophy-based and detritus-based aquatic food webs. For the former, the survival and reproduction of Daphnia magna fed with phytoplankton cultured at different levels of 15N addition were assessed. For the latter, the microbial decom-position of leaf litter was assessed at the same tracer levels. While no significant differences were observed, effect patterns were comparable to a previous study, supporting the isotopic redundancy hypothesis that postulates discrete quantum mechanical states at which the reaction speeds of metabolic processes are altered. Although physiology (reproduction) and activity (microbial decomposition) might not be altered to an ecologically sig-nificant level, labeling with heavy stable isotopes could potentially affect isotopic fractionation in biochemical processes and bias conclusions drawn from resulting SI ratios. | |
| 650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Miljövetenskap0 (SwePub)105022 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Environmental Sciences0 (SwePub)105022 hsv//eng |
| 710 | 2 | a Sveriges lantbruksuniversitetb Institutionen för vatten och miljö4 org |
| 710 | 2 | a Sveriges lantbruksuniversitet |
| 773 | 0 | t Aquatic Toxicologyg 259q 259x 0166-445Xx 1879-1514 |
| 856 | 4 | u https://pub.epsilon.slu.se/id/eprint/31080/contentsx primaryx Raw objectx freey FULLTEXT |
| 856 | 4 8 | u https://res.slu.se/id/publ/122323 |
| 856 | 4 8 | u https://doi.org/10.1016/j.aquatox.2023.106542 |
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