Table 3.

Concentrations of paralytic shellfish toxin (PST) congeners (μg 100 g⁻¹ STX-eq) measured by high-performance liquid chromatography in tissues of Arctic Terns (Sterna paradisaea) and whole forage fish (Pacific Sand Lance [Ammodytes personatus] and Pacific Herring [Clupea pallasii]) collected June–July 2019 near Juneau, Alaska. Bird tissues included liver and upper and lower gastrointestinal (GI) tract and contents. NA= not available. BDL = below detection limit.

Lab ID	NWHC Accession #	Species	Tissue	dcGTX2,3	C1C2	dcSTX	GTX2,3	GTX5	STX	GTX1,4	NEO	Total PST
ATS0665	29287–001	Arctic Tern	Liver	BDL	0.1	BDL	0.7	BDL	0.7	BDL	1.0	2.5
ATS0667	29287–001	Arctic Tern	Lower GI	BDL	1.0	0.5	13.7	0.8	18.5	13.8	3.0	51.2
ATS0669	29287–002	Arctic Tern	Liver	BDL	BDL	0.1	BDL	0.1	3.7	BDL	BDL	3.9
ATS0670	29287–002	Arctic Tern	Upper GI	BDL	BDL	0.3	BDL	0.1	5.1	BDL	1.0	6.6
ATS0672	29287–003	Arctic Tern	Entire GI	BDL	0.5	BDL	1.1	BDL	0.9	BDL	BDL	2.5
ATS0674	29287–004	Arctic Tern	Liver	BDL	BDL	BDL	BDL	BDL	2.3	BDL	BDL	2.3
ATS0675	29287–004	Arctic Tern	Upper GI	BDL	BDL	1.4	BDL	BDL	2.1	BDL	3.6	7.1
ATS0686	NA	Pacific Herring	Whole fish	0.2	1.2	0.2	4.6	0.3	2.6	30.5	18.5	58.1
ATS0687	NA	Pacific Sand Lance	Whole fish	0.4	1.2	0.3	3.7	0.4	3.3	39.6	42.0	91.0
ATS0756	NA	Pacific Sand Lance	Whole fish	1.1	7.4	1.1	20.6	2.8	20.5	159.9	127.7	341.1
ATS0761	NA	Pacific Sand Lance	Whole fish	8.5	BDL	BDL	BDL	BDL	BDL	BDL	BDL	8.5
ATS0762	NA	Pacific Sand Lance	Whole fish	BDL	0.1	0.1	0.6	0.2	2.6	BDL	3.0	6.6
ATS0763	NA	Pacific Sand Lance	Whole fish	BDL	BDL	BDL	0.2	0.1	0.6	BDL	1.0	1.9
ATS1042	NA	Pacific Sand Lance	Whole fish	BDL	0.8	0.8	5.6	1.8	37.1	50.1	29.0	125.2
ATS1043	NA	Pacific Sand Lance	Whole fish	48.3	BDL	BDL	2.1	BDL	BDL	66.5	35.0	151.9
ATS1044	NA	Pacific Sand Lance	Whole fish	BDL	7.2	1.9	21.3	2.5	12.8	237.4	211.0	494.1
ATS1045	NA	Pacific Sand Lance	Whole fish	BDL	2.0	1.9	6.2	0.9	11.1	72.9	44.0	139.0
ATS1046	NA	Pacific Sand Lance	Whole fish	BDL	1.1	BDL	0.7	0.1	0.6	27.1	8.0	37.6