Biological Invasions in Aquatic Ecosystems in China

Abstract

Aquatic ecosystems have been largely influenced by non-native invasive species in China. Despite the fact that negative ecological and economic effects caused by aquatic invasive species are increasing in number and area affected, the problem of biological invasions in aquatic ecosystems is highly overlooked in China - introduction vectors are not (well) regulated or managed, and lessons from reported disasters are slowly learned. In this chapter, we discuss the general information and background of biological invasions in aquatic ecosystems in China. We divide this chapter into four sections. Section 4.2, non-native species in aquatic ecosystems: we summarize the general information and distribution patterns of non-native species in aquatic ecosystems in China. Section 4.3, major vectors: we focus on three major vectors including shipping, aquaculture, and aquarium and ornamental trades, and their roles for introductions and spread of non-native species in China. Section 4.4, known and possible impacts of invasive species: we review representative disasters caused by aquatic invasive species and discuss possible risks caused by non-native species introduced into new environments. Section 4.5, management of biological invasions in aquatic ecosystems: we generally summarize the available management solutions, point out existing problems, and propose possible management solutions for future management. Finally, we discuss common research gaps among different vectors.