Table 1.

Distribution of cultivable protease-producing bacteria in tropical aquaculture systems.

Ponds	Sediment		Water
	×103CFU/g	Isolates	×103CFU/ml	Isolates
1#	234.0	148	1.090	79
2#	44.7	62	0.728	93
3#	104.7	54	1.050	105
4#	20.5	148	1.450	45
5#	285.0	132	0.658	76
6#	88.3	75	2.10	113
Nsp	260.0	35	1.820	14
Total		654		525

The aquaculture ponds are coded 1#–6#, and Nsp represents nature seawater pool.