• Mercury Concentrations in Resident Lake Fish Sampled from Lake Clark National Park and Preserve in 2019 and 2020

    Metadata Updated: January 13, 2022

    These data were collected as part of the Southwest Alaska Inventory and Monitoring Network (SWAN) freshwater contaminants protocol. The protocol outlines a framework for monitoring mercury (Hg) concentrations in resident lake fish within SWAN parks. The primary goal of this monitoring is to understand the spatial differences, temporal trends, and health ramifications of Hg contamination in resident lake fish. Monitoring relies on total Hg in fish axial muscle as an indicator of methyl Hg exposure. It targets four high-priority lakes which vary in size, depth, wetland cover, glacial influence, and Hg concentration. These lakes are located in two parks: Lake Clark National Park and Preserve (LACL) and Katmai National Park and Preserve (KATM). The focal species is lake trout (Salvelinus namaycush), a widespread, long lived, top predator in SWAN lakes. However, if other species are sampled as bycatch, they may be retained and analyzed if they represent species-specific data gaps in Hg concentration. Two broad types of data are generated from this protocol. The first type includes observations and measurements that are recorded while sampling and processing fish (e.g., length, weight, gender). The second type includes results of analyses performed by contract laboratories (e.g., age, total Hg). This particular dataset includes those two broad types of data for 49 fish sampled in 2019 and 2020 from 2 lakes in LACL: Lake Clark and Kijik Lake. Of those 49 fish, 40 were lake trout, 6 were burbot (Lota lota), 2 were Arctic grayling (Thymallus arcticus), and 1 was Arctic char (Salvelinus alpinus).

    Access & Use Information

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

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    References

    https://irma.nps.gov/DataStore/Reference/Profile/2290071

    Dates

    Metadata Created Date January 13, 2022
    Metadata Updated Date January 13, 2022

    Metadata Source

    Harvested from NPS-Harvest - NRSS Data Store

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 13, 2022
    Metadata Updated Date January 13, 2022
    Publisher National Park Service
    Unique Identifier Unknown
    Maintainer
    Identifier NPS_DataStore_2290071
    Data First Published 2021-12-20
    Data Last Modified 2021-12-20
    Category Tabular 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 a3310c21-22f4-47db-8642-bc1e38343f0f
    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/2290071
    Program Code 010:118, 010:119
    Related Documents https://irma.nps.gov/DataStore/Reference/Profile/2290071
    Source Datajson Identifier True
    Source Hash bcc8dba975862a885babeb8e1c6835ae3ba7fd87
    Source Schema Version 1.1
    Spatial -155.005,59.8512573,-153.258636,61.46526
    Temporal 2019-06-13/2020-06-18

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