Macroinvertebrate

{
  "id": "MLC-T-ENV-016243",
  "term": "Macroinvertebrate",
  "field": "Environment",
  "definitions": [
    "1. A larger organism without a spinal column, such as an aquatic insect.\n\n2. Large, generally soft-bodied organisms that lack backbones.\n\n3. Animals without backbones of a size large enough to be seen by the unaided eye and which can be retained by a U.S. Standard No. 30 sieve (28 meshes per inch, 0.595 mm openings).",
    "1. Animals without backbones of a size large enough to be seen by the unaided eye and which can be retained by a U.S. Standard No. 30 sieve (28 meshes per inch, 0.595 mm openings).\n\n2. Large, generally soft-bodied organisms that lack backbones.\n\n3. Animals without backbones (\"invertebrates\") that are large enough to be seen with the naked eye (\"macro\"). Examples of macroinvertebrates include: crayfish, snails, clams, aquatic worms, leeches, and the larval and nymph stages of many insects, including dragonflies, mosquitoes, and mayflies. Macroinvertebrates are excellent indicators of water quality because they cannot move to a different section of water if the water they are in is uninhabitable.\n\n4. Animals without backbones that can be seen with the naked eye (caught with a 1 mm² mesh net). Includes insects, crayfish, snails, mussels, clams, fairy shrimp, etc."
  ],
  "subject": [
    "Biological substances",
    "Water"
  ],
  "references": [
    "Watershed Protection Glossary; Watershed Protection (2003)",
    "Chesapeake Bay Glossary",
    "Aquatic Biodiversity Glossary",
    "Aquatic Biodiversity Glossary; Biocriteria Glossary",
    "Lake Erie Lakewide Management Plan (LaMP) Glossary",
    "Glossary of Wetland Bioassessment Terms"
  ],
  "url": "https://mlchart.com/terminology/environment/macroinvertebrate/"
}