Riffle and pool complex

{
  "id": "MLC-T-ENV-024308",
  "term": "Riffle and pool complex",
  "field": "Environment",
  "term_source": "Riffle and Pool Complex",
  "definitions": [
    "Steep gradient sections of streams are sometimes characterized by riffle and pool complexes. Such stream sections are recognizable by their hydraulic characteristics. The rapid movement of water over a coarse substrate in riffles results in a rough flow, a turbulent surface, and high dissolved oxygen levels in the water. Pools are deeper areas associated with riffles. Pools are characterized by a slower stream velocity, a steaming flow, a smooth surface, and a finer substrate. Riffle and pool complexes are particularly valuable habitat for fish and wildlife.(",
    "Riffle and pool complexes sometimes characterize steep gradient sections of streams. Such stream sections are recognizable by their hydraulic characteristics. The rapid movement of water over a course substrate in riffles results in a rough flow, a turbulent surface, and high dissolved oxygen levels in the water. Pools are deeper areas associated with riffles. A slower stream velocity, a streaming flow, a smooth surface, and a finer substrate characterize pools."
  ],
  "subject": [
    "Natural environments",
    "Water"
  ],
  "references": [
    "40 CFR 230.45 (CFR 2018)",
    "Aquatic Resources Awareness Course for Real Estate Appraisers Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/riffle-and-pool-complex/"
}