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Towards a sustainable world: diversity of freshwater gastropods in relation to environmental factors — A case in the Konya Closed Basin, Türkiye
Gümüs, B.A.; Gürbüzer, P.; Altindag, A. (2022). Towards a sustainable world: diversity of freshwater gastropods in relation to environmental factors — A case in the Konya Closed Basin, Türkiye. Diversity 14(11): 934. https://dx.doi.org/10.3390/d14110934
In: Diversity. MDPI: Basel. ISSN 1424-2818; e-ISSN 1424-2818
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| Trefwoorden |
Gastropoda [WoRMS]
Zoet water |
| Author keywords |
freshwater; gastropod diversity; environmental factors; Konya Closed Basin; Türkiye |
| Auteurs | | Top |
- Gümüs, B.A.
- Gürbüzer, P.
- Altindag, A.
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| Abstract |
The Konya Closed Basin (KCB) in Türkiye plays a key role in agricultural production and freshwater supply. However, the basin is impacted by humanly derived nitrogenous compounds and toxic metals. Keeping the water quality at a potable level in the basin is compulsory. This study was part of a project yielding monitoring of water quality in KCB in accordance with the Water Framework Directive (2000/60/EC). Eleven stations, except Beyşehir Lake and Mamasın Dam, were sampled for the first time for freshwater molluscs. Community structure indexes and multivariate statistical analyses were applied to determine the microhabitats of gastropods and their responses to environmental changes. The structure and distribution of gastropod assemblages differed depending on total phosphate, total nitrogen, dissolved oxygen, and pH. This study revealed that most of the gastropods in KCB are relatively tolerant to biodegradable pollution. However, there is a strong observed decline in population size requiring intensive future monitoring; measures have to be taken to preserve the remaining populations. Two endemic species need an urgent action plan to protect their habitats: Theodoxus anatolicus of Çeltik Canal and Bithynia pseudemmericia of Beyşehir Lake; a re-assessment of their extinction risk according to the IUCN rules is needed (2022). The results of this study will be useful for comparison with future studies to document potential improvements or continued ecological regression in the quality of aquatic ecosystems in the watershed. |
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