South Fork Spring River, Arkansas

western Washington lake sampling

Lake Mashu, Hokkaido, Japan

sampling in Hokkaido (Usio)

NIES Group, Tsukuba, Japan

central Washington coulees

crayfish competition experiments, Arkansas

western Washington lake sampling (Jeff)

Pacifastacus leniusculus in Hokkaido



sampling in Hokkaido (Hayashi)




Hutton interns Kerry and Francis


field help from Stumpy & Carolyn
crayfish competition experiments, Arkansas


western Washington lake sampling (Julian)


sampling in Hokkaido


sampling in Hokkaido (Takenaka)

Meryl, Thomas, Julian (Olden Lab)


British Columbia