Table 2.

The spatial distributions of crayfish were monitored on 2 successive days in the test aquarium

Crayfish i.d.	Environment	Day 1 (%)	Day 2 (%)	Switch?
18	Striped	43	46	No
16	Striped	43	44	No
T45	Striped	47	52	Yes
T7	Striped	51	49	Yes
183	Striped	29	21	No
T51	Striped	53	35	Yes
135	Striped	49	69	Yes
259	Striped	32	36	No
F13	Striped	46	48	No
13	Striped	49	59	Yes

Illustrated above is the percentage of time that each crayfish spent in the striped environment of the aquarium on test days 1 and 2. On day 2, 5 of the 10 crayfish switched the environment that they had spent a majority time in on day 1.