Benthic macroinvertebrates definition

Benthic macroinvertebrates means animals which are 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), and which live at least part of their life cycle within or upon submerged substrates in a body of water. These animals usually consist of the aquatic life stages of various insects and arthropods, mollusks, leeches and worms.
Benthic macroinvertebrates means bottom dwelling animals without backbones that live at least part of their life cycles within or upon available substrates within a body of water.
Benthic macroinvertebrates means invertebrate animals that are large enough to be seen by the unaided eye, can be retained by a U. S. Standard No. 30 sieve, and live at least part of their life cycles within or upon available substrate in a body of water or water transport system.

Examples of Benthic macroinvertebrates in a sentence

  • Benthic macroinvertebrates are identified to the family level in the field.

  • Benthic macroinvertebrates are identified to the family level in the field.After the survey is completed, the biologist determines the status of the stream segment.

  • Benthic macroinvertebrates as indicators of biological condition below hydropower dams on west slope Sierra Nevada streams, California, USA.

  • Benthic macroinvertebrates also responded to environmental variables: habitat, sediment, sulfate, and fecal coliform with good predictive power (R2 ranged from 0.38- 0.41).

  • Benthic macroinvertebrates are relatively sedentary organisms that inhabit or depend upon the sediment environment for their various life functions.

  • Benthic macroinvertebrates are organisms, primarily aquatic insect larvae, which live in and on the bottoms of rivers and streams.

  • Benthic macroinvertebrates shall be identified at least to the genus level.

  • Benthic macroinvertebrates are organisms without backbones that are visible to the eye without the aid of a microscope, that live on, under, and around rocks and sediment on the bottoms of lakes, rivers, and streams.

  • All reasonable custodial fees, and the reasonable costs and expenses of the Custodian, shall be paid by Borrower.

  • Benthic macroinvertebrates, or benthos, are organisms that live in and on the bottom substrates of rivers and streams.


More Definitions of Benthic macroinvertebrates

Benthic macroinvertebrates means invertebrate animals that are large enough to be seen by the unaided eye, can be retained by a U. S. Standard No. 30 sieve, and live at least part

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