This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: 1 The M noa Stream: Examination of a Watershed Biology 101L Biology & Society Lab Lab 3 Learning Objectives What is a watershed Importance Current conditions Map and take simple measurements Terminology Ecology Ecosystem Categories of freshwater ecosystems Detritus Environmental Impact Statement (EIS) Watershed An area of land that catches rain and snow draining or seeping into a marsh, stream, river, lake or groundwater. Any river that flows into the ocean plus all of the places where water accumulates to enter that river Historical Perspective of Watersheds: Impact of humans in Hawai`i Forests were the dominant vegetation The original forests have been altered Channelization and diversion of streams disrupt the watershed system. Marine life can be affected by runoff increased nutrients etc. The Hydrologic Cycle 2 Watershed Profile rain Not all water flows into streams infiltration surface runoff Where are they?...
View Full Document