We bought fish for the tagging study from commercial bag-net operators who work the
Tonle Sap River. This bag-net fishery, which is located in the southern-most stretch of the
river (Figure 1), comprises 14 rows. Each row contains between one and seven nets. Each
individual net is cone-shaped, being 25 metres in diameter at the mouth and 120 metres
in length. Almost all the fish we tagged during this study were collected from bag-net row
numbers two, three, and four, which are approximately 4-6 km upstream of Phnom Penh.
The bag-net fishery is a large seasonal fishery that targets fish moving out of the Tonle
making it an appropriate source of fish. With the
cooperation of the bag-net operators, we were able to collect, tag, and release fish with ease.
Sap Great Lake