ABSTRACT
Introductions of non-indigenous planktonic crustaceans into continental fresh waters have occurred in various locations throughout the world (Bollens et al, 2002). However, perhaps the most extensive invasion of lakes and rivers has occurred in North America, where at least nine planktonic copepods have invaded rivers and their estuaries (Cordell et al, 2008), and inland waters have seen the introduction of numerous other planktonic copepod and cladoceran species (Table 14.1) (USGS, 2009). Of these, most published studies have been conducted on the cladoceran Bythotrephes longimanus (Chapter 13). The ecology of nonindigenous copepods has been much less studied, but there are cases in which the introduced copepod has become so abundant that it dominates plankton abundance and must have similarly large ecological effects (Cordell et al, 2007; Bouley and Kimmerer, 2006; Cordell et al, 2008).
