• Great Smoky Mountains National Park Fisheries Index of Biotic Integrity (IBI) Surveys

    Metadata Updated: March 17, 2021

    These data represent an assessment of Ichthyofaunal community structure in selected streams located in Great Smoky Mountains National Park (GRSM). Sites are sampled on a rotational basis occurring once every two years. Currently (2020), there are ten watersheds being sampled using IBI protocols. Depending on the yearly rotation, these watersheds include Noland Creek, Deep Creek, Big Creek, Oconaluftee River, Eagle Creek, the East Prong of Little River (two sites), Straight Fork, Tabcat Creek, and Hazel Creek. In 2020, six sites were surveyed: East Prong Little River at Elkmont, Cataloochee Creek, Eagle Creek, West Prong Little River, Abrams Creek, and Oconaluftee River. Fish community assemblage assessments are made after collecting specimens using backpack electrofishing and seining techniques. Unlike the 3-Pass depletion method used to observe census data from GRSM streams, an IBI is used to determine how many species of fish are represented in a stream segment by surveying the various types of habitat: riffles, runs, pools, and shoreline. Techniques for IBI sampling also use seining in conjunction with electrofishing for fish capture. The point of IBI sampling isn’t to remove all the fish present, but rather to determine the community assemblage, i.e., species diversity within the stream segment. The GRSM Fishery Division works in conjunction with aquatics biologists at the Tennessee Valley Authority (TVA), who then provide “scores” regarding the species’ representation or robustness given the site criteria. IBI scores and metrics are determined using the TVA IBI Stream Survey Recording System v2.02. Once data have been entered by GRSM staff in the TVA Stream Survey database, results are sent to TVA biologists, who then provide GRSM with the scores associated with the species observed. These scores for 2020 survey data were provided to GRSM by TVA during Fall 2020.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided.

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    Metadata Created Date March 17, 2021
    Metadata Updated Date March 17, 2021

    Metadata Source

    Harvested from NPS-Harvest - NRSS Data Store

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date March 17, 2021
    Metadata Updated Date March 17, 2021
    Publisher National Park Service
    Unique Identifier Unknown
    Identifier NPS_DataStore_2238679
    Data First Published 2020-10-14
    Data Last Modified 2020-10-14
    Category Generic Dataset
    Public Access Level public
    Bureau Code 010:24
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID D:\IRMA\DataStore\Application\OpenData\v1.1\NPS-DataStore.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Data Quality True
    Harvest Object Id 7d5b3aab-dc30-495e-bb85-3b07e99499df
    Harvest Source Id a73e9b95-126c-4791-a8f2-46fc064cdc62
    Harvest Source Title NPS-Harvest - NRSS Data Store
    Homepage URL https://irma.nps.gov/DataStore/Reference/Profile/2238679
    Program Code 010:118, 010:119
    Related Documents https://irma.nps.gov/DataStore/Reference/Profile/2238679
    Source Datajson Identifier True
    Source Hash ee0a4dbd90323fd2303091b15c58f026b3852466
    Source Schema Version 1.1
    Spatial -84.0139,35.42586,-83.04249,35.8424072
    Temporal 2012-07-25/2020-10-05

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