Bioindikation mit Characeen

Becker, Ralf; Doege, Angela; Schubert, Hendrik; Weyer, Klaus van de

doi:10.1007/978-3-662-47797-7_8

Cited by 11 publications

(11 citation statements)

References 12 publications

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“…Since Pakistan does not yet have a Red List of Endangered Species, our results will serve as a basis for developing such a list for aquatic species. We compared the six species studied with the Red Lists of Balkans, Poland, Ukraine, the Czech Republic, and Germany in terms of the IUCN risk categories (Palamar-Mordvintseva & Tsarenko 2004;Caisova & Gąbka 2009;IUCN 2012;Becker et al 2016). We found that Chara braunii, C. contraria, C. globularis and C. vulgaris can be classified as being at low risk of extinction (LR).…”

Section: Nitellopsis Obtusa (Desvaux) Jgroves 1919mentioning

confidence: 99%

“…C. connivens is endangered in the Balkans and threatened with extinction in Poland (EN). Nitellopsis obtusa is a regionally very rare It is known that pH, conductivity, salinity, total hardness, carbonate hardness, total phosphorus, total nitrogen, ammonia nitrogen are important for charophytes in European habitats (Becker et al 2016 obtusa tolerate moderate organic pollution. We confirmed that rare Nitellopsis obtusa in the ecosystems of the Peshawar Valley prefers low alkaline waters with low temperature, low salinity and low TDS, which extends the ecology of this species.…”

Section: Nitellopsis Obtusa (Desvaux) Jgroves 1919mentioning

confidence: 99%

“…Physical and chemical components of water quality significantly affect the spatial distribution of aquatic organisms, especially charophytes. The diversity, distribution, and growth of charophytes are mostly affected by water temperature, pH, salinity, electrical conductivity, total dissolved solids, and the level of nutrients (Dąmbska 1964;Krause 1981;Blindow 1992;Haas 1994;Blindow & Langangen 1995;Pełechaty et al 2004;Gąbka et al 2007;Boszke & Bociąg 2008;Caisova & Gąbka 2009;Becker et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Effect of water quality on the spatial distribution of charophytes in the Peshawar Valley, Khyber Pakhtunkhwa, Pakistan

Khuram

Ahmad

Barınova

2021

Oceanological and Hydrobiological Studies

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The presented research was conducted in 2018–2019 in the Peshawar Valley, Pakistan, to study for the first time the effect of water quality on the spatial distribution of charophytes. A total of six taxa of charophytes were found at 41 sites in the Peshawar Valley along the banks of seven rivers, 16 streams and two wetlands: Chara braunii C.C.Gmelin, C. connivens Salzmann ex A. Braun, C. contraria A. Braun ex Kützing, C. globularis Thuiller, C. vulgaris Linnaeus, and Nitellopsis obtusa (Desvaux) J. Groves. Chara vulgaris was the most abundant species, followed by C. globularis, and C. contraria. Water pH, electrical conductivity (EC), total dissolved solids (TDS), salinity and dissolved oxygen (DO) were within the permissible limits for Pakistan, while water temperature, oxidation reduction potential (ORP) and resistivity showed deviations. Canonical Correspondence Analysis (CCA) revealed that DO affected Chara vulgaris, pH and resistivity affected C. braunii, C. connivens and C. globularis, temperature and ORP affected C. contraria and Nitellopsis obtusa. Furthermore, CCA showed that TDS, EC, and salinity had no effect on the spatial distribution of Chara contraria, C. vulgaris and Nitellopsis obtusa. Chara contraria and Nitellopsis obtusa should be protected under VU (Vulnerable) status (IUCN) along with their habitats.

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Section: Nitellopsis Obtusa (Desvaux) Jgroves 1919mentioning

confidence: 99%

Section: Nitellopsis Obtusa (Desvaux) Jgroves 1919mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of water quality on the spatial distribution of charophytes in the Peshawar Valley, Khyber Pakhtunkhwa, Pakistan

Khuram

Ahmad

Barınova

2021

Oceanological and Hydrobiological Studies

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“…Verzoeting wordt goed verdragen en als kwaliteitsindicerend valt ze hier uit de boot. Nitella opaca is een meer uitgesproken zoetwatersoort (Doege et al 2016) en de vermelding is dan ook verdacht. Alle huidige groeiplaatsen van Chara aspera in Vlaanderen zijn in zoetwater, maar elders zijn er wel stabiele brakwaterpopulaties.…”

Section: Afleidingunclassified

Beoordelingskader regionaal belangrijke biotopen ten behoeve van het beheer Deel V: brakke tot zilte wateren (RBBah)

Denys¹

2019

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“…They often occur in waters with low nutrient concentrations. Therefore, some charophytes can serve as bioindicators for nutrient-poor conditions (Krause 1981; Doege et al 2016). In clear-water ecosystems charophytes are more competitive than other macrophytes but are outcompeted under eutrophic conditions (Ozimek and Kowalczewski 1984; Pieczyńska et al 1988; Blindow 1992).…”

Section: Introductionmentioning

confidence: 99%

Age and site-specific pattern on encrustation of charophytes

Herbst

Schubert

2018

Bot Stud

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Encrustation and element content (Ca, Fe, K, Mg and P) of charophytes was studied along plant thalli to investigate the dependency of thallus age and site-specificity. Charophytes were collected from five sampling sites (Angersdorfer Teiche, Asche, Bruchwiesen, Krüselinsee and Lützlower See) which were distinct with respect to water chemistry. Furthermore, photosynthesis was measured to identify the physiological state of plants in habitat waters and with the addition of different ion concentrations (Ca2+, K+, Mg2+ and Na+). Age pattern on encrustation of charophytes was site-specific: carbonate content increased from the youngest to the oldest part (Angersdorfer Teiche), younger parts were less encrusted than older parts in Asche, Bruchwiesen and Krüselinsee, whereas encrustation in Lützlower See was the same along plants thallus. Charophytes showed species-specific encrustation in investigated sites. Encrustation of C. hispida in Angersdorfer Teiche was also as high as of individuals from hard-water lakes irrespective of 10.15 mS cm−1 (salinity of 6.3). For species growing in Angersdorfer Teiche, K/Na content and photosynthesis was lowest when compared to other sites. Photosynthesis of charophytes was enhanced after the addition of KCl and adversely affected by CaCl2, MgCl2 and NaCl. In summary, it was shown that encrustation of charophytes in water sites with strong ion anomalies could be as high as in hard-water lakes. It is assumed that ion composition, rather than ion concentration of Na+, Mg2+ and SO42−, impact on the encrustation of charophytes. The age pattern on encrustation in this study showed a strong site-specificity, whereas encrustation of charophytes was species-specific. Ion concentrations, either of habitats or actively added in laboratory measurements, impact on encrustation, element content and photosynthesis of charophytes.

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Bioindikation mit Characeen

Cited by 11 publications

References 12 publications

Effect of water quality on the spatial distribution of charophytes in the Peshawar Valley, Khyber Pakhtunkhwa, Pakistan

Effect of water quality on the spatial distribution of charophytes in the Peshawar Valley, Khyber Pakhtunkhwa, Pakistan

Beoordelingskader regionaal belangrijke biotopen ten behoeve van het beheer Deel V: brakke tot zilte wateren (RBBah)

Age and site-specific pattern on encrustation of charophytes

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