New occurrences ofCyprideis torosa(Crustacea, Ostracoda) in Germany

Burkhard Scharf,Michael Herzog,Anna Pint

doi:10.1144/jmpaleo2015-022

Burkhard Scharf, Michael Herzog + Show 1 more

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https://doi.org/10.1144/jmpaleo2015-022

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Abstract

Living Cyprideis torosa (Jones, 1850) was found in Germany along the North Sea coast and on some islands, within the Baltic Sea and in coastal waters near the Baltic Sea, but also in some inland natural and anthropogenic saline waters. The natural inland waters were probably colonized by birds because this species was found only in permanent saline shallow lakes that provide resting places for migrating birds. Information on the fossil and Recent record and on the biology of C . torosa and its accompanying ostracod fauna is discussed.

Highlights

Two kinds of saline inland waters are distinguished: thalassic and athalassic waters
Thalassic waters have an ionic composition similar to that of seawater, athalassic waters have a quite different ionic composition from those with dissolved salts derived from seawater and have never been connected to the sea during geologically Recent times (Cole 1983)
The aim of this study is to show where Cyprideis torosa can be found in Germany, especially in inland waters of Germany, to compile information on the life conditions of C. torosa and on the accompanying ostracod fauna at sample sites with C. torosa or at these samples sites where we expected to find C. torosa

Summary

Introduction

Two kinds of saline inland waters are distinguished: thalassic and athalassic waters. Since 1889, a potash factory (Salz- und Kalihersteller K+S in Kassel, Germany) has extracted potash from the salt of a salt dome and discharged its saline waste water into the River Werra and into the River Weser and the North Sea (Fig. 2). This is an anthropogenic saline inland water. Cyprideis torosa (Jones, 1850) occurs mainly in thalassic brackish waters with fluctuating salinity, from hypersaline to freshwater in range It is found in brackish coastal waters of Europe, western and central Asia, the Mediterranean region, the Middle East, lakes in central Africa (Meisch 2000), in the Seychelles (Wouters 2002) and South Africa (Wouters 2003). The aim of this study is to show where Cyprideis torosa can be found in Germany, especially in inland waters of Germany, to compile information on the life conditions of C. torosa and on the accompanying ostracod fauna at sample sites with C. torosa or at these samples sites where we expected to find C. torosa

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