Table 1.

Results of a modified up-and-down dosing trial where common murres (Uria aalge) were dosed with saxitoxin dihydrochloride (STX-diHCl) or a crude Alexandrium catenella extract (IC-8 B1). Empty behavioral response columns indicate a bird that was dosed for euthanasia and no observations were recorded. Time of death (TOD) measured as time (hr:min) elapsed since toxin ingestion. Dose is expressed as μg·kg⁻¹ for STX-diHCl and μg STX-equivalents·kg⁻¹ for the A. catenella extract.

Bird ID	Toxin Type	Dose	Abnormal Behavior	Ecol-Relevant Behavior	Outcome (TOD)
UA45	STX-diHCl	25.2	No	No	Recovered
UA49	STX-diHCl	33.3	No	No	Recovered
UA54	STX-diHCl	43.9	No	No	Recovered
UA59	STX-diHCl	57.8	Yes	No	Recovered
UA68	STX-diHCl	76.2	Yes	No	Recovered
UA43	STX-diHCl	100.5	Yes	Yes	Recovered
UA51	STX-diHCl	76.2	Yes	No	Recovered
UA55	STX-diHCl	100.5	Yes	Yes	Acute toxicity (0:18)
UA63	STX-diHCl	76.2	Yes	No	Recovered
UA52	STX-diHCl	57.8	Yes	No	Recovered
UA57	STX-diHCl	43.9	Yes	No	Recovered
UA50	STX-diHCl	33.3	Yes	No	Recovered
UA45	STX-diHCl	25.2	No	No	Recovered
UA67	A. catenella Extract	34.6	Yes	No	Recovered
UA41	A. catenella Extract	45.6	Yes	No	Recovered
UA47	A. catenella Extract	60.1	Yes	No	Recovered
UA46	A. catenella Extract	79.3	Yes	No	Recovered
UA58	A. catenella Extract	104.5	Yes	No	Recovered
UA66	A. catenella Extract	137.8	Yes	No	Recovered
UA65	A. catenella Extract	181.6	Yes	No	Recovered
UA40	A. catenella Extract	239.4	Yes	No	Recovered
UA42	A. catenella Extract	315.6	Yes	No	Recovered
UA48	A. catenella Extract	416.0	Yes	Yes	Acute toxicity (0:15)
UA56	A. catenella Extract	315.6	Yes	No	Recovered
UA64	A. catenella Extract	416.0	Yes	Yes	Acute toxicity (0:11)
UA67	A. catenella Extract	315.6	Yes	No	Recovered
UA49	STX-diHCl	89.0	-	-	Euthanized (1:07)
UA54	STX-diHCl	89.0	-	-	Euthanized (1:24)
UA46	A. catenella Extract	104.5	-	-	Euthanized (0:24)
UA66	A. catenella Extract	104.5	-	-	Euthanized (0:34)