Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Invasiveness identification using aquatic species invasiveness screening kit for non-native ornamental fish in China:a case study of non-native Loricariidae species.

Abstract

Aquarium trade is the main pathway for the introduction of non-native fish, which poses great threats to native aquatic ecosystems due to lack of risk assessment and management. This study investigated the introduction status of non-native Loricariidae fish by combining literature and market surveys. Risk identification was conducted on 31 Loricariidae fish using Aquatic Species Invasiveness Screening Kit under current and climate change conditions. The results showed that: (1) A total of 103 Loricariidae fishes were recorded in the surveys. Climates in the native range of 14 species were similar with that in China; (2) There were 16 species had the same risk level in both northern and southern ecoregions. Five species were classified as high risk species, including one species in Genus Hypostomus and four in Genus Pterygoplichthys. Nine species were classified as medium risk and two species were low risk; (3) The risk levels of 11 species in southern ecoregion and five species in northern ecoregion were changed from low to medium risk under climate change conditions; and (4) The risk level of six and 11 species changed between southern and northern ecoregions under current and climate change situation, respectively. These results suggested that non-native tropic ornamental fish have invasion risk in both southern and northern ecoregions. The risk of non-native fish would increased under climate change conditions. These results could inform management strategies for non-native ornamental species.