Table 1.

Toxicity (µg STX eq. kg⁻¹) of S. aurata exposed via feed to PST at different temperatures and current EU limit [11] for paralytic shellfish poisoning (PSP) toxins.

Sampling Day	Temperature	Toxicity (µg STX eq. kg−1)	EC 853/200411
Day 4	18 °C	74.7 ± 1.6	800 µg STX eq. kg−1
	21 °C	59.1 ± 8.3 #
	24 °C	67.1 ± 6.5 #
Day 5	18 °C	113.4 ± 17.2 b
	21 °C	154.1 ± 1.2 b,*
	24 °C	275.4 ± 3.0 a,*

Different letters (a, b) indicate significant differences (p < 0.05) between temperature (18 °C, 21 °C, and 24 °C) for the same day, whereas the symbols (*, #) indicate significant differences (p < 0.05) between days for the same temperature. Results are expressed as mean ± SD (n = 5).