-Direct identification of fish by visual observation at the reservoir bank. A pair of binoculars may be used to identify fish far from the bank.
-Use of a D-framed hand net of 3mm mesh size to sweep in the water to catch fish for identification.
-Use of baited pot trap with 3mm mesh size, set in the water for 20 minutes to attract.
-Fish collected are identified following Field Guide to the Freshwater Fish of Hong Kong (Lee et al. (2004))