Metallothionein-Like Proteins and Energy Reserve Levels after Ni and Pb Exposure in the Pacific White Prawn Penaeus vannamei

Table 2

Nickel concentration ($\mu$g g^-1) in abdominal muscle and hepatopancreas from P. vannamei, at the soluble and insoluble fraction.

Tissue	Group	Total		Soluble		Insoluble
		Mean	SD	Mean	SD	Mean	SD
Abdominal muscle	Control	0.30	0.19	0.23	0.18	0.10	0.02
	Ni-treated	0.13	0.04	0.07	0.04	0.08	0.03
	Pb-treated	0.08	0.01	N. D.${}^{*}$	N. D.	0.08	0.02
	Mixture-treated	0.08	0.01	N. D.	N. D.	0.08	0.01
Hepatopancreas	Control	6.41	3.65	2.98	2.27	3.43	2.86
	Ni-treated	6.12	3.47	4.17	3.28	1.95	1.18
	Pb-treated	8.82	6.84	7.32	5.10	2.97	2.56
	Mixture-treated	23.09	16.44	13.65	11.10	11.14	11.12

${}^{*}$Not detected.