Origin, distributions, and environmental significance of ubiquitous humic-like fluorophores in Antarctic lakes and streams.

Antarctic Regions Factor Analysis, Statistical Humic Substances Lakes Rivers Spectrometry, Fluorescence
Autochthonous DOM Fluorescence Microbial process PARAFAC Photodegradation

Journal

Water research
ISSN: 1879-2448
Titre abrégé: Water Res
Pays: England
ID NLM: 0105072

Informations de publication

Date de publication:
15 Oct 2019
Historique:
received: 02 05 2019
revised: 08 07 2019
accepted: 22 07 2019
pubmed: 31 7 2019
medline: 20 11 2019
entrez: 31 7 2019
Statut: ppublish

Résumé

This study characterized dissolved organic matter (DOM) obtained from 47 lakes and 2 streams on ice-free areas at Lützow-Holm Bay and Amundsen Bay in East Antarctica (n = 74), where few biogeochemical studies have been historically conducted. Samples were analyzed for basic water chemistry and by resin fractionation, UV-vis spectroscopy, and excitation emission matrix spectroscopy combined with parallel factor analysis (EEM-PARAFAC). Salinity of the samples ranged very broadly from fresh to hypersaline as a result of evaporative concentration. There was a clear positive correlation between log-salinity and the spectral slopes of DOM (S

Identifiants

DOI: 10.1016/j.watres.2019.114901 PMID: 31362208
pubmed: 31362208
pii: S0043-1354(19)30675-X
doi: 10.1016/j.watres.2019.114901
pii:
doi:

Substances chimiques

Humic Substances 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

114901

Informations de copyright

Copyright © 2019 Elsevier Ltd. All rights reserved.

Auteurs

Morimaru Kida (M)

Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo, 657-8501, Japan. Electronic address: morimaru.kida@uni-oldenburg.de.

Taichi Kojima (T)

Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo, 657-8501, Japan.

Yukiko Tanabe (Y)

National Institute of Polar Research, Research Organization of Information and Systems, 10-3 Midori-cho, Tachikawa, Tokyo 190-8518, Japan; Department of Polar Science, SOKENDAI (The Graduate University for Advanced Studies), 10-3 Midori-cho, Tachikawa, Tokyo, 190-8518, Japan.

Kentaro Hayashi (K)

Institute for Agro-Environmental Sciences, NARO, 3-1-3 Kannondai, Tsukuba, Ibaraki, 305-8604, Japan.

Sakae Kudoh (S)

National Institute of Polar Research, Research Organization of Information and Systems, 10-3 Midori-cho, Tachikawa, Tokyo 190-8518, Japan; Department of Polar Science, SOKENDAI (The Graduate University for Advanced Studies), 10-3 Midori-cho, Tachikawa, Tokyo, 190-8518, Japan.

Nagamitsu Maie (N)

School of Veterinary Medicine, Kitasato University, Towada, Aomori, 034-8628, Japan.

Nobuhide Fujitake (N)

Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo, 657-8501, Japan.

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Classifications MeSH

questionsmedicales.fr › Régions géographiques › Régions antarctiques › Origin, distributions, and environmental...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Méthodes épidémiologiques › Statistiques comme sujet › Analyse statistique factorielle › Origin, distributions, and environmental...
questionsmedicales.fr › Mélanges complexes › Substances humiques › Origin, distributions, and environmental...
questionsmedicales.fr › Environnement et santé publique › Environnement › Eau douce › Lacs › Origin, distributions, and environmental...
questionsmedicales.fr › Environnement et santé publique › Environnement › Eau douce › Rivières › Origin, distributions, and environmental...
questionsmedicales.fr › Techniques d'investigation › Techniques de chimie analytique › Analyse spectrale › Spectrométrie de fluorescence › Origin, distributions, and environmental...