Table 1: Experimental Environmental Parameters Applied to Specimens of T. gemmata in Tanks 2 and 3

	Sediment Size	Temperature	Salinity
A. Stable Conditions
	0.5 - 1.5 mm	20-22°C	29.2 - 31.9%
B. Sediment Size
Trial 1	0.1 - 1.0 mm	20-22°C	29.2 - 31.9%
Trial 2	0.5 - 1.5 mm	20-22°C	29.2 - 31.9%
Trial 3	1.0 - 2.0 mm	20-22°C	29.2 - 31.9%
Trial 4	Layered 0.5 - 1.5 and 1.0 - 2.0 mm	20-22°C	29.2 - 31.9%
C. Salinity
Trial 1	0.5 - 1.5 mm	20-22°C	40%
Trial 2	0.5 - 1.5 mm	20-22°C	29.2 - 31.9%
Trial 3	0.5 - 1.5 mm	20-22°C	20%
D. Temperature
Trial 1	0.5 - 1.5 mm	20-22°C	29.2 - 31.9%
Trial 2	0.5 - 1.5 mm	32°C	29.2 - 31.9%