The Authors state that they performed an experiment on the crucian carp, an imperilled European cyprinid fish. However, in any place throughout the text they provide its scientific name - Carassius carassius (stating a single word "carassius" is meaningless in binominal zoological nomenclature). Use of vernacular names only instead of scientific ones might be misleading and should be avoided in reporting scientific research. In the same paragraph, the Authors mentioned "silver carp". From the context ("... and goldfish") one can assume that they refer to Carassius gibelio. But vernacular name "silver carp" is widely used for Hypophthalmichthys molitrix (which poses rather no threat to native C. carassius in Europe). Moreover, according to FishBase, C. carassius does not occur in China. In addition, that paragraph refers to paper by Wang et al. (2021) which suffers from the very same problem (unidentified "crucian carp"). Four other references (Nitz et al. 2020, Dagoudo et al. 2021, Tetreault et al. 2021, Jiang et al. 2021b) do not mention any Carassius species at all. For all the abovementioned reasons I would appreciate, if the Authors kindly provide an explanation and clarify what was the real experimental animal of their study (which itself seems very interesting and highly vaulable, as deoxygenation and rising water temperatures are major threats to aquatic environments). Thank you in advance!