Mekong giant catfish tracking project 2003 in the Mekong River

• Mitsunaga, Yasushi

• Mitamura, Hiromichi

• Arai, Nobuaki

• Viputhanumas, Thavee

Abstract

Mekong giant catfish Pangasianodon gigas is one of the largest freshwater fish in the world. The fish is endemic to the Mekong basin and becomes high-degree endangered species listed in the IUCN Red List. Nevertheless little is known of the behavior. Ten Mekong giant catfish (TL : 76.5 to 88.5 cm, BW : 3.5 to 5.8 kg) were implanted with coded ultrasonic transmitters (Coded V16, Vemco Ltd.). Five monitoring receivers (VR1, Vemco Ltd.) were installed at Kong Chiam, Nakhon Phanom, Sri Chianmai, Sang Khong, and Chiang Khong along the Mekong River. The fish were released at Nakhon Phanom on 11 May, 2003. Three fish were recaptured by fishermen using set nets. One of the fish was recaptured at 100 km upward from the release point one week after release. This shows high performance of upward swimming of Mekong giant catfish in the Mekong River. Since 24 May, 2003, all fish are missing, unfortunately. Currently, the receivers are still waiting for the fish's coming.

Organized by Graduate School of Informatics, Kyoto University ; Fisheries Laboratory of Kinki University ; JSPS Bangkok Liaison Office ; Informatics Research Center for Development of Knowledge Society Infrastructure

December 11-13, 2003, Bangkok, Thailand

Journal

• Proceedings on the 4th SEASTAR2000 Workshop

  Proceedings on the 4th SEASTAR2000 Workshop 81-82, 2003

  Graduate School of Informatics, Kyoto University

Keywords

• Mekong giant catfish
• biotelemetry
• tracking
• coded ultrasonic transmitter

Details

• CRID: 1050001202061091968
• NII Article ID: 120006653708
• HANDLE: 2433/44138
• Text Lang: en
• Article Type: conference paper
• Data Source:
  • IRDB
  • CiNii Articles