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07/31/2013 Env Bd Packet
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07/31/2013 Env Bd Packet
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7/29/2014 2:33:40 PM
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7/8/2014 10:35:51 AM
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Environmental Board
Env Bd Document Type
Env Bd Packet
Meeting Date
07/31/2013
Env Bd Meeting Type
Regular
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3.0 MONITORING TERMS <br />3.1 Monitoring Terms <br />The descriptions below will help readers understand the results presented on the <br />following pages. <br />Benthic — of, relating to, or happening on stream, lake or ocean bottoms. <br />Complete Metamorphosis - occurs in the Diptera, Megaloptera, Coleoptera, Trichoptera <br />and Lepidoptera. The life cycle includes the following stages: egg, larva, pupa and adult. <br />Trichoptera (caddisfly) larva <br />Trichoptera (caddisfly) Adult <br />Ephemeroptera (mayfly) LarvaEphemeroptera (mayfly) Adult <br />Dominant Family -The family which comprises the largest single portion of the <br />invertebrate sample. <br />Dominant Family % Overall - The dominant family's percentage of the total <br />invertebrate sample. This metric indicates how dominant a single family is at a site. A <br />high percent dominance is suboptimal. It indicates a less diverse community of <br />macroinvertebrates. <br />EPT - The number of mayfly (Ephemeroptera), stonefly (Plecoptera), and caddisfly <br />(Trichoptera) families in the sample. These families represent the pollution intolerant <br />insects. A higher EPT score reflects better water quality than a lower one. <br />Family — In the taxonomic rank, family appears as follows: Phylum, Class, Order, <br />Suborder, Family, Subfamily, Genus, and Species. An example of an order is "Mayflies <br />or Ephemeroptera ". An example of a family is Heptageniidae or Flat Head Mayfly. <br />Family is the level of identification used in this protocol. <br />Family Biotic Index (FBI) — Each macroinvertebrate family is assigned a pollution <br />tolerance number between `0' and `10' depending on its sensitivity to pollution. A score <br />• <br />• <br />
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