Short-finned eel, Short-fin eel
Two freshwater eel species can be found: Shortfin eel Anguilla australis and the endemic Longfin eel A. dieffenbachii but catches are mainly composed of Shortfin eel in the South Island, especially in Te Waihora/Lake Ellesmere (ANG 13) (Jellyman, 2007; MPI, 2012). The stock structure is not truly known. Biochemical evidences suggests a unique stock around SE Australia and New Zealand (MPI, 2012). However, a study focused on the genetic structure of this species reveals significant genetic differentiation between populations of East Australia and New Zealand, and might be genetically isolated (Shen and Tzeng 2007).