Investigating tools for biomonitoring browning in streams: chlorophyll content of Fontinalis antipyretica
The chlorophyll content of the bryophyte species Fontinalis antipyretica was studied in seven small boreal streams of varying water quality. The aim was to determine whether the chlorophyll content of F. antipyretica responds to increasing water colour, and if the bryophyte could thus be used as a b...
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| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | Knowledge and Management of Aquatic Ecosystems |
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| Online Access: | https://www.kmae-journal.org/articles/kmae/full_html/2025/01/kmae250029/kmae250029.html |
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| author | Rajala Salla Estlander Satu Nurminen Leena Horppila Jukka |
| author_facet | Rajala Salla Estlander Satu Nurminen Leena Horppila Jukka |
| author_sort | Rajala Salla |
| collection | DOAJ |
| description | The chlorophyll content of the bryophyte species Fontinalis antipyretica was studied in seven small boreal streams of varying water quality. The aim was to determine whether the chlorophyll content of F. antipyretica responds to increasing water colour, and if the bryophyte could thus be used as a bioindicator for browning in stream environments. Significant variation in the CHL contents (CHL a+b, CHL a:b) of F. antipyretica was observed between streams of differing water colour. Despite this, no significant effect of water colour or the dissolved organic carbon (DOC) concentration on the CHL contents (CHL a+b, CHL a:b) was observed. However, the CHL a:b ratio decreased significantly with increasing light attenuation coefficient, thus suggesting that light is an important factor causing physiological changes in F. antipyretica. The DOC concentration explained one-third of the light attenuation coefficient, whilst no significant effect of water colour was found. Our findings suggest that whilst the CHL a:b of F. antipyretica can indicate changes in light conditions, it does not directly show a clear pressure-response association with increased water colour or DOC concentration. |
| format | Article |
| id | doaj-art-ccef132efad5459b9d951a4f6c585428 |
| institution | OA Journals |
| issn | 1961-9502 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Knowledge and Management of Aquatic Ecosystems |
| spelling | doaj-art-ccef132efad5459b9d951a4f6c5854282025-08-20T02:33:54ZengEDP SciencesKnowledge and Management of Aquatic Ecosystems1961-95022025-01-0104261610.1051/kmae/2025013kmae250029Investigating tools for biomonitoring browning in streams: chlorophyll content of Fontinalis antipyreticaRajala Salla0Estlander Satu1Nurminen Leena2Horppila Jukka3Ecosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences, University of HelsinkiEcosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences, University of HelsinkiEcosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences, University of HelsinkiEcosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences, University of HelsinkiThe chlorophyll content of the bryophyte species Fontinalis antipyretica was studied in seven small boreal streams of varying water quality. The aim was to determine whether the chlorophyll content of F. antipyretica responds to increasing water colour, and if the bryophyte could thus be used as a bioindicator for browning in stream environments. Significant variation in the CHL contents (CHL a+b, CHL a:b) of F. antipyretica was observed between streams of differing water colour. Despite this, no significant effect of water colour or the dissolved organic carbon (DOC) concentration on the CHL contents (CHL a+b, CHL a:b) was observed. However, the CHL a:b ratio decreased significantly with increasing light attenuation coefficient, thus suggesting that light is an important factor causing physiological changes in F. antipyretica. The DOC concentration explained one-third of the light attenuation coefficient, whilst no significant effect of water colour was found. Our findings suggest that whilst the CHL a:b of F. antipyretica can indicate changes in light conditions, it does not directly show a clear pressure-response association with increased water colour or DOC concentration.https://www.kmae-journal.org/articles/kmae/full_html/2025/01/kmae250029/kmae250029.htmlbioindicatorbryophytelotic watersbrownificationwater framework directive |
| spellingShingle | Rajala Salla Estlander Satu Nurminen Leena Horppila Jukka Investigating tools for biomonitoring browning in streams: chlorophyll content of Fontinalis antipyretica Knowledge and Management of Aquatic Ecosystems bioindicator bryophyte lotic waters brownification water framework directive |
| title | Investigating tools for biomonitoring browning in streams: chlorophyll content of Fontinalis antipyretica |
| title_full | Investigating tools for biomonitoring browning in streams: chlorophyll content of Fontinalis antipyretica |
| title_fullStr | Investigating tools for biomonitoring browning in streams: chlorophyll content of Fontinalis antipyretica |
| title_full_unstemmed | Investigating tools for biomonitoring browning in streams: chlorophyll content of Fontinalis antipyretica |
| title_short | Investigating tools for biomonitoring browning in streams: chlorophyll content of Fontinalis antipyretica |
| title_sort | investigating tools for biomonitoring browning in streams chlorophyll content of fontinalis antipyretica |
| topic | bioindicator bryophyte lotic waters brownification water framework directive |
| url | https://www.kmae-journal.org/articles/kmae/full_html/2025/01/kmae250029/kmae250029.html |
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