Flyathalon - NIWA gives aquatic insects an obstacle course

摘要

A NIWA scientist is using obstacle courses to test the ability of fly larvae for upstream travel - a kind of flyathalon. This work will identify some of the barriers to stream restoration, including movement of insects as they recolonise restored areas. Agricultural land use has caused degradation to New Zealand streams and riparian ecosystems. River and stream rehabilitation projects are increasing in number, but scientists don't yet know why some are successful and some fail to bring back the bugs.