Use of desmids to assess the natural conservation value of a Hungarian oxbow (Malom-Tisza, NE-Hungary)
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Type = Article
Cím:
Use of desmids to assess the natural conservation value of a Hungarian oxbow (Malom-Tisza, NE-Hungary)
Létrehozó:
Krasznai, Enikő
Fehér, Gizella
Borics, Gábor
Várbíró, Gábor
Grigorszky, István
Tóthmérész, Béla
Kiadó:
Springer
Dátum:
2008
Téma:
QE08 Hydrosphere. Hydrology / hidroszféra, hidrológia
QH301 Biology / biológia
QH540 Ecology / ökológia
Tartalmi leírás:
A method recently proposed by Coesel that uses the desmid flora to assess the conservation value of aquatic
habitats was applied to an alkaline and hypertrophic oxbow of the Upper Tisza river (NE Hungary). According to the
macrophyte community the oxbow contains two distinct habitats, both of which provide suitable conditions for the development
of a rich desmid flora. High temporal and spatial differences in the algal flora were observed in periphyton and
plankton samples taken in June and August 2004. The sample of Utricularia vulgaris periphyton collected in August was
characterised by the most species-rich desmid flora. The conservation value of this sample was the maximum according to
Coesel?s method. The latter also proved to be useful for the assessment of the conservation value of plankton net samples
taken from among the macrophytes. The use of modified rarity value calculations as recently proposed by Fehér did not
significantly affect the conservation value, but different enumeration methods to quantify the floristic diversity did result in
different conservation values. We found that Coesel?s desmid based method is a useful tool for assessing the conservation
value of the studied oxbow. Based our results the Coesel method?s applicability and usefulness depended on (i) the sampling
location (open water or macrophytic region) samples were taken from open water or from macrophytic region; and
(ii) species enumeration procedures (up to 400 specimens counted, or whole droplets counted).
Típus:
Article
PeerReviewed
Formátum:
text
Azonosító:
Krasznai, Enikő and Fehér, Gizella and Borics, Gábor and Várbíró, Gábor and Grigorszky, István and Tóthmérész, Béla (2008) Use of desmids to assess the natural conservation value of a Hungarian oxbow (Malom-Tisza, NE-Hungary). BIOLOGIA-BRATISLAVA, 63 (6). pp. 928-935. ISSN 0006-3088
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