Environmental Engineering Reference
In-Depth Information
Fig. 13.2
Fish collected by boat electrofi shing in a New Zealand urban lake
(Lake Rotoroa, Hamilton). Eels (right) were the only indigenous species caught.
Invasive species (clockwise from top left) are tench, catfi sh, goldfi sh, European
perch, and rudd. Photo: Brendan Hicks.
Fig. 13.3
Juveniles of the invasive European perch collected by gill netting
in an urban New Zealand lake (Karori Reservoir, Wellington). Four days of
electrofi shing and gill netting in this lake collected 4700 perch and no other fi sh
species. Photo: Nicholas Ling.
