Table 1.
Saxitoxin (STX) and total paralytic shellfish toxin (PST) concentrations in Arctic Tern (Sterna paradisaea) tissues collected during a 2019 bird mortality event near Juneau, Alaska. STX analyzed by enzyme-linked immunosorbent assay (ELISA; μg 100g−1 STX) and total PSTs analyzed by high-performance liquid chromatography (HPLC; μg 100g−1 STX-eq) for muscle, liver, and upper and lower gastrointestinal tract (GI) and contents. STX was not detected in any muscle samples. NA = not available. BDL = below detection limit. See Table 3 for PST congener profiles.
| NWHC Accession |
Age | Date | Location | Liver ELISA(μg 100g−1 STX) |
HPLC(μg 100g−1 STX-eq) | Upper GI ELISA(μg 100g−1 STX) |
HPLC(μg 100g−1 STX-eq) | Lower GI ELISA(μg 100g−1 STX) |
HPLC(μg 100g−1 STX-eq) |
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| 29287–001 |
Adult | 6/27/2019 | Mendenhall Lake | 2.0 | 2.5 | 5.5 | NA | 39.4 | 51.2 |
| 29287–002 | Chick | 6/27/2019 | Mendenhall Lake | 5.9 | 3.9 | 7.1 | 6.6 | NA | NA |
| 29287–003 | Chick | 6/27/2019 | Mendenhall Lake | NA | NA | 2.2* | 2.5* | NA | NA |
| 29287–004 | Chick | 6/27/2019 | Mendenhall Lake | 3.7 | 2.3 | 7.7 | 7.1 | NA | NA |
| 29287–006 | Chick | 7/1/2019 | Portland Island | BDL | NA | BDL | NA | BDL | NA |
*Entire GI