National Rivers and Streams Assessment: Northern Appalachians Benthic Macroinvertebrates (2008-2009)

A dataset containing the benthic macroinvertebrates collected in the Northern Appalachians as part of the 2008-2009 National Rivers and Streams Assessment conducted by the United States Environmental Protection Agency.

nrsa_nap_0809

Format

A data frame with 13,609 rows and 16 variables:

uid

Unique site visit ID

site_id

Site identification code

rt_nrsa_cat

Impact designations for use in indicator development for NRSA

target_taxon

Taxanomic name at the target hierarchical taxonomic level

total

Total number of individuals counted

phylum

Phylum of taxon

class

Class of taxon

order

Order of taxon

family

Family of taxon

subfamily

Subfamily of taxon

tribe

Tribe of taxon

genus

Genus of taxon

ffg

Macroinvertebrate functional feeding group used in metric calculations; Collector-filterer (CF), Collector-gatherer (CG), Parasite (PA), Piercer (PI), Scraper (SC), and Shredder (SH)

habit

Habit used in metric calculations; Burrower (BU), Climber (CB), Clinger (CN), Diver (DV), Planktonic(PK), Skater (SK), Sprawler (SP), and Swimmer (SW)

ptv

Pollution tolerance value as assigned for NWSA

voltinism

Voltinism as assigned by USGS

...

Source

https://www.epa.gov/national-aquatic-resource-surveys/data-national-aquatic-resource-surveys