Don's Life In Thailand (Chiang Mai)
Fishing In Thailand
Information on fishing, angling and the permits required for the fresh water rivers and lakes of
Thailand, as well as sea fishing off the Thai coast

Permits

Permits are not required in Thailand for rod fishing. However, there are regulations regarding
fishing in certain locations and for some endangered species. When fishing at a fishing park or on
a fishing tour, any permits needed should be arranged by the tour operator.

    No fishing is allowed in Marine National Parks

    It is not permitted to fish for the following freshwater species:
            Malayan Bonytongue
            Siam Tiger Fish
            Siamese Butterfly Catfish
            Giant Mekong Catfish
    Sea fish: there are many species that may not be caught

    For a full list contact the
Thai Department of Fisheries

The above information is from the website of AngloInfo.  For detailed information go to their
website.  
 CLICK HERE