Aquatic%20Macroinvertebrates%20

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Aquatic Macroinvertebrates What They Tell Us
About the Water

• By Bianca, Carnecia Mark

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Our Purpose

• We set out to find different Aquatic
  Macroinvertebrates. Our plan was to study not
  only them but there environment as well. To also
  see just what the types of Macroinvertebrates we
  found, could tell us more about the water we
  found them in. Certain Marcroinvertebrates are
  found in certain types of water.

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What are Aquatic Macroinvertebrates??

• Macroinvertebrates are organisms that are large
  enough to be seen with the naked eye and lack a
  backbone. They inhabit all types of running
  waters, from fast-flowing mountain streams to
  slow-moving muddy rivers.
• The most common Macroinvertebrates are insects in
  their larval or nymph form, crayfish, clams,
  snails and worms.

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Hypothesis

• The higher the water quality ,the higher the
  diversity and the quantity of the Macro
  invertebrates.

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Methods

• We used nets to capture the Macroinvertebrates at
  ODR, Concord and Mt. Moosilauke.
• We then identified them as a specific class or
  family.
• We later compared them to the water quality.

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Other Methods

• Scoring- used to calculate the water quality, the
  number of Macro Invertebrates, and the Macro
  Invertebrate score
• We used this scoring method in the ODR, Concord,
  Upper, Middle, and Lower Gorge

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ODR Findings

• At the ODR, we came across a lot of water
  striders and several aquatic worms.

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Look What We Found At Mount Moosilauke

• We found a plenty of flies at the upper gorge
  brook. Both caddis and may flies were all over.
  There were to different types of mayflies but ten
  altogether.

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Middle Gorge Brook

• We found one small red worm and and five
  caddisflies in the middle gorge brook of Mount
  Moosilauke.

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Lower Gorge Brook

• Mostly caddisflies and mayflies were found in
  this area.
• These flies are in class one which is intolerant
  to pollution. They are very sensitive.

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Merrimack Findings..

• At Merrimack, in Concord, we discovered a
  black-striped leech and two different small
  snails. These are all tolerant to pollution and
  part of the Class 3 of the Macroinvertebrates
  index class.

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Results
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Conclusions

• In conclusion the water quality does have a
  positive affect on the quantity of Macro
  Invertebrates in the water.
• Because as the water quality increases so does
  the Macro Invertebrate index number.

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Reference

• http//www.dec.ny.gov/animals/35772.html
• http//www.bv229.k12.ks.us/bvnwbiology/fieldbiolog
  y/macroinvertebrates/background.htm
• Mitchell, F. and J.Schloss Interpreting Water
  Quality Results For the Merrimack River. UNH
  Cooperated Extension July 1991
• Dr. Jeff Schloss. Personal Communication