Table 3. Highest concentrations of paralytic shellfish toxins (PSTs) measured by LC-MS/MS in the liver, intestine and muscle of Takifugu pardalis and Takifugu niphobles

Toxins	Toxin contents (μg/g STX equiv.)
	Takifugu pardalis			Takifugu niphobles
	Muscle	Intestine	Liver	Muscle	Intestine	Liver
dcSTX	ND	ND	ND	ND	ND	ND
STX	ND	ND	ND	ND	ND	ND
NEO	ND	ND	ND	0.004	0.148	ND
dcGTX2	ND	0.047	ND	ND	0.147	0.001
dcGTX3	0.084	0.323	0.070	0.044	0.348	0.270
GTX1	ND	0.231	ND	ND	ND	ND
GTX2	ND	0.219	ND	ND	0.042	ND
GTX3	0.001	0.051	0.022	ND	0.053	0.010
GTX4	ND	0.138	0.008	ND	ND	ND
GTX5	ND	0.044	0.005	ND	0.031	ND
C1	0.001	0.001	ND	ND	0.002	0.001
C2	0.001	0.001	ND	ND	0.003	ND

LC-MS/MS, liquid chromatograph-tandem mass spectrometry; dcSTX, decarbamoylsaxitoxin; ND, not detected; STX, saxitoxin; NEO, neosaxitoxin; dcGTX2, decarbamoylgonyautoxin-2; dcGTX3, decarbamoylgonyautoxin-3; GTX1, gonyautoxin-1; GTX2, gonyautoxin-2; GTX3, gonyautoxin-3; GTX4, gonyautoxin-4; GTX5, gonyautoxin-5; C1, N-sulfocarbamoylgonyautoxin-C1; C2, N-sulfocarbamoylgonyautoxin-C2.