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Idaho State University

Idaho State University, a Carnegie-classified doctoral research and teaching institution founded in 1901, attracts students from around the world to its Idaho campuses. At the main campus in Pocatello, and at locations in Meridian, Idaho Falls and Twin Falls, ISU offers access to high-quality education in more than 250 programs.

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South Fork Salmon River Snorkel Surveys (2010)

Fish abundance in the main-stem ecosystem surrounding its confluences with burned, burned + debris flow, and unburned streams was estimated by underwater surveys with mask and snorkel. Snorkel surveys encompassed habitat above and below each confluence. We drew maps of the surveyed area and estimated width, depth, and length of each habitat to calculate approximate volume available to fish within habitat units. We identified fish in each habitat unit to species and estimated their length to the nearest 5-cm increment. This information allowed us to determine if fish were preferentially using confluence habitat and to what extent they did so. Selection for a particular habitat was determined if the proportion of total fish occupying a particular habitat / proportion of total habitat volume available was > 1. In August 2010, we conducted daytime snorkel surveys in the main-stem habitat encompassing the confluence with each tributary. Each survey lasted between 45 and 60 min and encompassed a stream length of 75-100 m.
FieldValue
Modified
2019-06-11
Release Date
2019-06-11
Publisher
Identifier
5c7f809f-c225-4806-a590-74a8c52946b6
NKN Identifier
5B0FD632-3697-4AE9-9B5F-6CF45B8A9C34
Spatial / Geographical Coverage Location
Salmon River, Idaho, USA
Language
English (United States)
License
Author
Hannah Harris
Contact Name
Hannah Harris
Contact Email
Public Access Level
Public