Data for: Visualization of the hidden food sources of bass (Micropterus salmoides), crucian carp (Carassius carassius), and minnow (Zacco platypus) using 18S rRNA V9 primers on urban Singal Reservoir in Korea

Fish are the most important consumers in aquatic ecosystems, and the analysis of fish prey is very important for understanding their short-term feeding characteristics and the connectivity of food webs. In this study, DNA metabarcoding was used to identify the prey of the native fish species, Zacco platypus (the pale chub) and Carassius carassius, and an introduced species, Micropterus salmoides, in domestic lentic ecosystems. Prey community composition, selectivity index, prey diversity, and trophic level analyses were performed. The prey composition ratio analysis showed that in August 2020, 85.8% of M. salmoides’ prey was fish from the orders Cypriniformes and Perciformes, and in July 2021, 100% of M. salmoides’ prey was zooplankton from the orders Anomopoda and Calanoida. Zooplankton was the main prey of Z. platypus collected in August 2020 (69.5%) and C. carassius collected in July 2021 (88.9%). The selectivity index analysis showed that the preferred prey of M. salmoides was fish ..., , fastq file name definitions :
The first S and W of the fastq file refer to Stomach contents and Water, respectively, and in the case of S, the second name refers to the scientific name of each fish [ex) M: Micropterus salmoides, Z: Zacco platypus, C: Carassius carassius].The next number represents the year and the next name represents the month.
SM20A: August 2020 Stomach contents of Micropterus salmoides
SM20O: October 2020 Stomach contents of Micropterus salmoides
SM21J: July 2021 Stomach contents of Micropterus salmoides
SZ20A: August 2020 Stomach contents of Zacco platypus
SC21J: July 2021 Stomach contents of Carassius carassius
W20A: August 2020 Water eDNA
W21J: July 2021 Water eDNA