A marine calanoid copepod (Temora longicornis) in a semi-stagnant coastal lagoon (Lake Grevelingen,S.W.-Netherlands) |
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Authors: | C Bakker P Van Rijswijk |
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Institution: | (1) Delta Institute for Hydrobiological Research, Vierstraat 28, 4401 EA Yerseke, The Netherlands |
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Abstract: | The marine calanoid copepodTemora longicornis was introduced in saline Lake Grevelingen (S.W.-Netherlands), when the lake was continuously flushed with North Sea water in 1979, to enhance the reduced salinity. Development of the copepod proceeded suboptimally as a consequence of an unfavourable environment in the lake: 1. The phytoplankton assemblage, mainly consisting of crytomonad flagellates, less suitable for growth and reproduction of the adult stages. 2. An acute food shortage occurring at a crucial moment in the development. 3. A. pronounced salinity-and oxygen stratification in June, preventing further development ofTemora.Communication nr. 474 of the Delta Institute for Hydrobiological Research, Yerseke. |
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Keywords: | Temora Lake Grevelingen Oosterschelde estuary flushing phytoplankton food salinity-and oxygen stratification |
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