Articles | Volume 24, issue 2
https://doi.org/10.5194/we-24-59-2024
https://doi.org/10.5194/we-24-59-2024
Standard article
 | 
02 Aug 2024
Standard article |  | 02 Aug 2024

Environmental DNA in different media reveals distribution characteristics and assembly mechanisms of fish assemblages in a complex river–lake system

Yun Shao, Shuping Wang, Pengyuan Wang, Shuhui Men, Miaomiao Qian, Aopu Li, Meiping Feng, and Zhenguang Yan

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Cited articles

Banerjee, P., Stewart, K., Dey, G., Antognazza, C., Sharma, R., Maity, J., Saha, S., Doi, H., de Vere, N., Chan, M., Lin, P.-Y., Chao, H.-C., and Chen, chien-yen: Environmental DNA analysis as an emerging non-destructive method for plant biodiversity monitoring: a review, AoB PLANTS, 14, plac031, https://doi.org/10.1093/aobpla/plac031, 2022a. 
Banerjee, P., Stewart, K. A., Dey, G., Sharma, R. K., Maity, J. P., Chan, M. W. Y., Chang, K. P., Chen, T.-H., Hsu, C.-T., and Chen, C.-Y.: When conventional methods fall short: identification of invasive cryptic Golden Apple Snails (Pomacea canaliculata; P. maculata) using environmental DNA, Hydrobiologia, 849, 4241–4257, https://doi.org/10.1007/s10750-022-04979-6, 2022b. 
Brown, E. A., Chain, F. J. J., Crease, T. J., MacIsaac, H. J., and Cristescu, M. E.: Divergence thresholds and divergent biodiversity estimates: can metabarcoding reliably describe zooplankton communities?, Ecol. Evol., 5, 2234–2251, https://doi.org/10.1002/ece3.1485, 2015. 
Buxton, A. S., Groombridge, J. J., and Griffiths, R. A.: Seasonal variation in environmental DNA detection in sediment and water samples, PLOS ONE, 13, e0191737, https://doi.org/10.1371/journal.pone.0191737, 2018. 
Chase, J. M. and Myers, J. A.: Disentangling the importance of ecological niches from stochastic processes across scales, Phil. Trans. R. Soc. B, 366, 2351–2363, https://doi.org/10.1098/rstb.2011.0063, 2011. 
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Short summary
Using eDNA to study fish communities in river–lake systems is a new, cost-effective method. Our study found that water eDNA might miss some fish living in the sediment. Fish communities in rivers and lakes are quite similar, showing how connected these systems are. The environment, especially temperature, influences the genetic signals found in water and sediment. This research sheds light on the effectiveness of eDNA in understanding aquatic ecosystems.