Validation of a diatom-based index of water quality confirms its utility in monitoring of the Lake Erie's nearshore area

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F19%3A43899140" target="_blank" >RIV/60076658:12310/19:43899140 - isvavai.cz</a>

Výsledek na webu

<a href="https://reader.elsevier.com/reader/sd/pii/S0380133018301886?token=81D62D58B41E59C9EA82569C75B594DC41EEACC51CBC0659D526634E5710F4EDFE2F88933FFF922BD0C91F806A23C400" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S0380133018301886?token=81D62D58B41E59C9EA82569C75B594DC41EEACC51CBC0659D526634E5710F4EDFE2F88933FFF922BD0C91F806A23C400</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jglr.2018.10.004" target="_blank" >10.1016/j.jglr.2018.10.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Validation of a diatom-based index of water quality confirms its utility in monitoring of the Lake Erie's nearshore area

Popis výsledku v původním jazyce

We conducted a validation of the Planktonic Diatom Index (PDI) to demonstrate the utility of a water quality index for the monitoring of Lake Erie&apos;s nearshore pelagial zone. Using a large, independent dataset from the Western and Central Basins of Lake Erie for validation ensures realistic assessment of the performance of the index. Diatom-based biomonitoring allows for the inference of integrative information about water quality based on diatom species composition. The PDI is based on the assumption that phosphorus, an established proxy for eutrophication, is instrumental in the structuring of diatom communities. In this study, PDI scores and measured total phosphorus were significantly correlated (r(2) = 0.34, r(2) = 0.63 outliers removed). However, when samples were considered on a basin-wide basis, the PDI scores were not significantly predicted by measured total phosphorus in the Western Basin. We suggest that snapshot phosphorus measurements are less likely to represent the overall condition in the highly variable, eutrophic Western Basin. When multiple phosphorus measurements were averaged over time, the relationship with the integrative PDI scores was more apparent (r(2) = 0.52). Through validation with an independent dataset, we show that the PDI is likely a monitoring tool that provides a robust assessment of water quality in the pelagial zone of the nearshore waters in Lake Erie. (C) 2018 International Association for Great Lakes Research. Published by Elsevier B.V. All rights reserved.

Název v anglickém jazyce

Validation of a diatom-based index of water quality confirms its utility in monitoring of the Lake Erie's nearshore area

Popis výsledku anglicky

We conducted a validation of the Planktonic Diatom Index (PDI) to demonstrate the utility of a water quality index for the monitoring of Lake Erie&apos;s nearshore pelagial zone. Using a large, independent dataset from the Western and Central Basins of Lake Erie for validation ensures realistic assessment of the performance of the index. Diatom-based biomonitoring allows for the inference of integrative information about water quality based on diatom species composition. The PDI is based on the assumption that phosphorus, an established proxy for eutrophication, is instrumental in the structuring of diatom communities. In this study, PDI scores and measured total phosphorus were significantly correlated (r(2) = 0.34, r(2) = 0.63 outliers removed). However, when samples were considered on a basin-wide basis, the PDI scores were not significantly predicted by measured total phosphorus in the Western Basin. We suggest that snapshot phosphorus measurements are less likely to represent the overall condition in the highly variable, eutrophic Western Basin. When multiple phosphorus measurements were averaged over time, the relationship with the integrative PDI scores was more apparent (r(2) = 0.52). Through validation with an independent dataset, we show that the PDI is likely a monitoring tool that provides a robust assessment of water quality in the pelagial zone of the nearshore waters in Lake Erie. (C) 2018 International Association for Great Lakes Research. Published by Elsevier B.V. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Great Lakes Research

ISSN

0380-1330

e-ISSN

—

Svazek periodika

45

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

98-108

Kód UT WoS článku

000459082000010

EID výsledku v databázi Scopus

2-s2.0-85055739649