Stream quality assessment

Knowledge graph centered on Stream quality assessment with 71 nodes and 133 connections. Top connected: Delphinium, Spruce, Potentilla, Predator chemicals induce changes in mayfly life h, Populus.

Method synopsis

Comprehensive measurement of stream physical and chemical parameters including substrate characteristics, water quality, and algal biomass. Provides environmental context for species distribution patterns.

Synthesized from method descriptions across 9 papers using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Nonconsumptive effects of Brook Trout predators reduce secondary production of mayfly prey (2020), Freshwater Science. Implementations in other papers (listed below) may differ.

1. Habitat characterization measurements
   Measured stream width and depth at upstream and downstream extents of each reach at experiment end. Measured wetted stream width and specific conductance every 10 m during Baetis B emergence period. Used pulse additions of conservative tracer (NaCl) to estimate average water velocity and average depth. Estimated canopy cover by viewing through 25-cm long, 5-cm diameter tube vertically at 45° angles in 4 cardinal directions every 15 m and calculating the mean. Measured mean stream temperature using HOBO Pendant data loggers.
   Quantities: Measurements every 10 m for conductance, every 15 m for canopy cover, 25 cm tube length, 5 cm diameter tube, 45° viewing angles, 4 cardinal directionsDuration: End of experiment measurements, continuous temperature loggingConditions: Stream conditions at end of study period
   Equipment: HOBO Pendant data loggers (±0.5°C accuracy, model UA-001-064), 25-cm long 5-cm diameter viewing tube, conservative tracer (NaCl)

Typical Equipment

• Hobo data loggers
• conductivity meter
• USGS StreamStats web-based GIS application
• GPS
• glass viewing box

Output Measurements

• conductivity
• substrate particle size
• substrate embeddedness
• Didymosphenia standing crop index
• drainage basin area
• elevation

Papers Using This Protocol (9)

Species Studied With This Protocol