Table 6.

Estimation of the relative concentrations of P-CTX congeners in T. gratilla collected in Anaho Bay using LC-MS/MS.

Date	P-CTX-3B	P-CTX-3C	51-OH-P-CTX-3C	P-CTX-4A	P-CTX-4B	Total
July 2015	9.57	4.23	5.48	1.16	1.1	21.5
November 2016	0.70	0.78	<LD	<LD	<LD	1.48

Results expressed in ng P-CTX-3C equiv./g of tissue, with a detection limit of 0.05 ng P-CTX-3C equiv./g of tissue.