I have the same feeling as you have, that the global warming will drive some re-distribution of fishes. This genus is characterized by an interesting distribution pattern. Many species are restricted to 1 or 2 rivers only, notably in Australia. The evolution may involve maritime dispersal with rapid speciation within freshwater.
H. cyprinoides has been widely recorded from Asia to Africa, this species occurs in more tropical brackish habitas in Asia - Ryukyu, Palau, Taiwan. And now it may well be newly extended to the subtropical S. China coast.
[ 本帖最後由 jasonpoon 於 2010-10-6 10:40 編輯 ]