The latest issue of the Journal of Fish Biology has some interesting facts about Southeast Asian catfish. A new study by Zeb Hogan, Ian Baird, Richard Radtke and Jake Vander Zanden shows that the Catfish (Pangasius krempfi) travels thousands of kilometers from the South China Sea up the Mekong River to spawn. This is similar to many salmon species that spend the first part of their lives at sea and then migrate thousands of kilometers up coastal rivers to spawn. This turns topsy-turvy the present belief that Catfish does not travel much. The new findings also suggest that related catfish species all over the world may be more migratory than previously thought.
For more information, see the paper: Hogan, Z, IG Baird, R Radtke and MJ Vander Zanden (2007) Long distance migration and marine habitation in the tropical Asian catfish, Pangasius krempfi. Journal of Fish Biology 71, 818–832.
1 comment:
That bodes well for their management. Pangasius includes those giant river cats, I believe. In days of yore they lived long enough to become behemoths.
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