{"title":"The hinge in Unio tumidus Retzius, 1778 (Bivalvia: Unionidae) may reflect anthropogenic development in the waterbody catchment","authors":"A. Rizhinashvili","doi":"10.1127/arch.moll/146/251-261","DOIUrl":null,"url":null,"abstract":"This study is a first attempt to estimate the impact of development in the catchment areas of rivers and lakes on the variability of hinge morphology in Unio tumidus Retzius, 1778, one of the most common species of freshwater bivalves in Europe. A preliminary examination of conchological materials reveals that individuals of U. tumidus present variations (morphs) of this character. The shells of U. tumidus were collected from northwestern European Russia, from 6 lakes of various trophic status and 4 rivers. The samples show a relationship of morph frequencies with the anthropogenic development of the catchment area. This relationship is reflected in 2 indices: the overall level of intrapopulation diversity and the proportion of individuals deviating from the most common pattern. Both indices increase with an increasing level of development in the catchment. The results of this study show the possibility of practical use of hinge morphology in monitoring waterbodies.","PeriodicalId":48949,"journal":{"name":"Archiv fur Molluskenkunde","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2017-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archiv fur Molluskenkunde","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1127/arch.moll/146/251-261","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
This study is a first attempt to estimate the impact of development in the catchment areas of rivers and lakes on the variability of hinge morphology in Unio tumidus Retzius, 1778, one of the most common species of freshwater bivalves in Europe. A preliminary examination of conchological materials reveals that individuals of U. tumidus present variations (morphs) of this character. The shells of U. tumidus were collected from northwestern European Russia, from 6 lakes of various trophic status and 4 rivers. The samples show a relationship of morph frequencies with the anthropogenic development of the catchment area. This relationship is reflected in 2 indices: the overall level of intrapopulation diversity and the proportion of individuals deviating from the most common pattern. Both indices increase with an increasing level of development in the catchment. The results of this study show the possibility of practical use of hinge morphology in monitoring waterbodies.
期刊介绍：
Archiv für Molluskenkunde (ISSN 1869-0963, e-ISSN 2367-0622); Up to and including Vol. 138/2 papers were published under the ISSN 0003-9284.
rchiv für Molluskenkunde is an international, peer-reviewed journal on all aspects of molluscan biodiversity. It preferably publishes original research papers of high quality on systematics, taxonomy, phylogeny and morphology of all groups of molluscs, both recent and fossil from the Cenozoic. Contributions of broad international interest on other aspects of malacology such as ecology and biogeography are welcome as well. Papers on physiology, parasitology, regional faunistics or those on non-Cenozoic fossils or pure biostratigraphy should be submitted elsewhere.
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