A study on treatment of Piscinoodinium pillulare infection on lampam jawa (Puntius gonionotus) with coppersulphate (CuSO4).

Abstract

A study on the effects of treatment of Piscinoodinium pillulare infection on Lampam Jawa fingerlings with Copper sulphate was conducted in Marine Hatchery Universiti Malaysia Terengganu from December 2006 to February 2007. In the previous test, 0.08 ppm of copper sulphate calculated as 96-hour LC50 acute toxicity of copper on the fingerlings. Fingerlings infected with this dinoflagellate parasite obtained from Pusat Pengembangan Akuakultur, Jitra, Kedah and treated with copper sulphate within this range for 96 hour. At the end of the experiment, the gills of the fingerlings were dissected out and fixed in I 0% buffered formalin for histopathological studies. Histopathology of the infected fish shows that there was hyperplasia in secondary lamella with degeneration and reduced space between secondary lamellas. Histopathology of gills treated with copper sulphate shows that there was a synergistic effects that is there was increased hyperplasia and inflammation in gills of Lampam Jawa infected with Piscinoodinium pillulare and exposed to copper sulphate