Fish collection site and freshwater fish examined
We collected total 1,162 freshwater fish in 32 species in Wicheon (a stream of Nakdong-gang), which is located in Woobo-myeon, Gunwi-gun (latitude: 38.43268; longitude: 127.4375), Gyeongsangbuk-do, Korea. The numbers and species of fish examined in each year were as follows:
In 2011, total 105 freshwater fish in 13 species (no. of fish examined), i.e., Zacco platypus (49), Squalidus japonicus coreanus (10), Zacco temminckii (10), Squalidus gracilis majimae (8), Pungtungia herzi (5), Acheilognathus majusculus (5), Opsariichthys uncirostris amurensis (5), Carassius auratus (3), Pseudogobio esocinus (3), Acanthorhodeus macropterus (3), Sarcocheilichthys variegatus wakiyae (2), and Acheilognathus koreensis (1), Cobitis sinensis (1), were examined. In 2013, total 107 freshwater fish in 12 species, i.e., P. herzi (20), Z. platypus (20), Acheilognathus yamatsutae (16), Z. temminckii (15), A. koreensis (10), S. gracilis majimae (9), S. variegatus wakiyae (6), Coreoperca herzi (5), Abbottina springeri (2), C. sinensis (2), C. auratus (1), and Lepomis macrochirus (1), were examined.
In 2014, total 338 freshwater fish in 24 species, i.e., Z. platypus (60), Z. temminckii (50), P. herzi (47), A. koreensis (29), A. yamatsutae (25), S. japonicus coreanus (14), C. auratus (13), S. gracilis majimae (13), Acheilognathus rhombeus (11), S. variegatus wakiyae (11), A. majusculus (10), Micropterus salmoides (8), C. sinensis (8), C. herzi (7), P. esocinus (7), Misgurnus anguillicaudatus (6), Odontobutis platycephala (4), Pseudorasbora parva (4), L. macrochirus (4), Cobitis lutheri (3), Acheilognathus lanceolatus (2), Microphysogobio jeoni (1), and Microphysogobio koeensis (1), were examined. In 2015, total 245 freshwater fish in 19 species, i.e., Z. platypus (50), Z. temminckii (49), P. herzi (41), A. koreensis (29), A. yamatsutae (16), S. japonicus coreanus (15), S. gracilis majimae (11), C. auratus (10), A. rhombeus (7), A. springeri (4), S. variegatus wakiyae (3), O. uncirostris amurensis (3), P. parva (1), Rhynchocypris oxycephalus (1), A. macropterus (1), P. esocinus (1), C. herzi (1), M. koeensis (1), and A. lanceolatus (1), were examined.
In 2016, total 168 freshwater fish in 17 species, i.e., A. koreensis (35), Z. platypus (30), P. herzi (30), A. rhombeus (15), A. yamatsutae (15), Zacco koreanus (14), O. platycephala (6), C. auratus (5), S. japonicus coreanus (4), A. lanceolatus (3), C. herzi (3), P. esocinus (2), S. gracilis majimae (2), Hemibarbus longirostris (1), M. anguillicaudatus (1), Siniperca scherzeri (1), and M. koreensis (1), were examined. In 2017, total 199 freshwater fish in 17 species, i.e., Z. platypus (50), S. japonicus coreanus (31), A. yamatsutae (27), P. herzi (26), A. koreensis (26), Z. temminckii (10), P. parva (7), Acanthorhodeus gracilis (5), S. variegatus wakiyae (3), C. herzi (2), C. auratus (2), Z. koreanus (2), A. rhombeus (2), S. scherzeri (2), M. salmoides (2), C. lutheri (1), and Pseudobagrus fulvidraco (1), were examined.