Advancing improvement in riverine water quality caused a non-native fish species invasion and native fish fauna recovery.

ABSTRACT: The knowledge of biotic and abiotic drivers that put non-native invasive fishes at a disadvantage to native ones is necessary for suppressing invasions, but the knowledge is scarce, particularly when abiotic changes are fast. In this study, we increased this knowledge by an analysis of the biomass of most harmful Prussian carp Carassius gibelio in a river reviving from biological degradation. The species' invasion followed by the invasion's reversal occurred over only two decades and were documented by frequent monitoring of fish biomass and water quality. An initial moderate improvement in water quality was an environmental filter that enabled Prussian carp's invasion but prevented the expansion of other species. A later substantial improvement stimulated native species' colonization of t

SUBMITTER: Glowacki L 

PROVIDER: S-EPMC8363613 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature