Table 1. Carbon dioxide (CO₂), ammonium (NH₄⁺) concentrations and pH values between diploid and triploid far eastern catfish, Silurus asotus in this experiment

Time (hours)	Measurements
	CO₂ concentration (mg/L)		Ammonium (NH₄⁺)		pH
	Diploid	Triploid	Diploid	Triploid	Diploid	Triploid
Pre-experiment	05.1³	05.1³	0	0	7.6¹	7.6^b
6	13.6^a	13.0^a	0.11^b	0.08^a	6.8^a	7.2^b
12	15.2^b	14.6^a	0.14^b	0.11^a	4.1^a	4.9^b
18	17.6^b	16.4^a	0.17^b	0.14^a	3.7^a	4.6^b
24	19.2^b	18.6^a	0.18^b	0.16^a	3.5^a	4.3^b
30	20.8^b	19.4^a	0.20^b	0.17^a	3.2^a	3.9^b
36	21.4^b	20.0^a	0.22^b	0.18^a	3.0^a	3.7^b
42	22.0^b	20.4^a	0.24^b	0.19^a	2.9^a	3.5^b
48	23.4^b	20.6^b	0.25^b	0.20^a	2.8^a	3.4^b