Submitted to: Global Aquaculture Advocate
Publication Type: Popular Publication
Publication Acceptance Date: October 21, 2002
Publication Date: December 1, 2002
Citation: Small, B.C. 2004. Accounting for water temperature during hydrogen peroxide treatment of channel catfish eggs. N. Amer. J. Aquacult. 66:162-164. Technical Abstract: There has been a high degree of variability associated with channel catfish hatching success observed since the beginning of commercial catfish culture. Environmental factors affecting hatching success can be addressed through understanding the development of catfish embryos and optimizing management practices to improve environmental conditions and reduce diseases. By maintaining water temperature between 26 and 28 degrees Celsius, water hardness above 10 mg/L, avoiding transport delays over 30 minutes, and conducting prophylactic treatment with hydrogen peroxide to reduce egg diseases, a 30% or better gain in hatching success can be achieved. In 2001, over 1 billion channel catfish fingerlings and fry were sold to producers, generating approximately U.S. $24 million income for commercial hatcheries. As described here, small improvements to current management practices could mean another $7 million more.