(same as NAT_R 4308; cross-leveled with NAT_R 7308, ENV_SC 7308). Students will be introduced to common techniques to measure streamflow and characterize stream ecosystems from a physical and biological perspective. The course combines lectures with field and lab experiences. Graded on A-F basis only. Recommended Senior standing or BIO_SC 3650 and ENV_SC 4200 or FOR_4390.