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Title:Time-series analysis of oxygen as an important environmental parameter for monitoring diversity hotspot ecosystems : an example of a river sinking into the karst underground
Authors:ID Bhattacharyya, Saptashwa (Author)
ID Mulec, Janez (Author)
ID Oarga-Mulec, Andreea (Author)
.pdf diversity-15-00156_(2).pdf (15,17 MB)
MD5: B44A1377E0C9083DC8E301F01414415F
Work type:Unknown
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:Predicting variations in dissolved oxygen concentration (DO) is important for management and environmental monitoring of aquatic ecosystems. Regression analyses and univariate and multivariate time-series analyses based on autoregressive methods were performed to investigate oxygen conditions in the Pivka River, Slovenia. The monitoring site was established upstream where the river sinks into the karst cave Postojnska jama, which hosts one of the richest subterranean faunas yet studied worldwide. It was found that abnormal variations of DO started to be noticeable at values of DO < 3 mg/L and became more pronounced until the ecosystem reached fully anoxic conditions. The abnormal fluctuations during the critical summer period were due to environmental conditions, organic load and resident biota. Predictions for future detection of anomalies in DO values were made from stable residuals of the measured data, and it was demonstrated that the model could be used to obtain a reliable estimate for a short period, such as one day. The example presented an analysis pipeline based on specific and established threshold DO values, and it is particularly important for ecosystems with diversity hotspots where prolonged low DO values can pose a threat to their biota.
Keywords:karst (geology), aquatic ecosystems, dissolved oxygen, modelling, prediction
Publication date:01.01.2023
Year of publishing:2023
Number of pages:15 str.
Numbering:Vol. 15, issue 2
PID:20.500.12556/RUNG-8397-8e065007-d897-1f24-d78b-88002f2c8e83 New window
COBISS.SI-ID:139646211 New window
ISSN on article:1424-2818
DOI:10.3390/d15020156 New window
Publication date in RUNG:05.09.2023
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Shortened title:Diversity
COBISS.SI-ID:517523737 New window


License:CC BY 4.0, Creative Commons Attribution 4.0 International
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Title:Time-series analysis of oxygen as an important environmental parameter for monitoring diversity hotspot ecosystems
Keywords:kras (geologija), vodni ekosistemi, raztopljeni kisik, modeliranje, napoved