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Ecology of twelve species of Thyasiridae (Mollusca: Bivalvia) |
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| Authors: | Keuning Rozemarijn Schander Christoffer Kongsrud Jon Anders Willassen Endre |
| Institution: | a University of Bergen, Department of Biology, 5020 Bergen, Norway b Centre of GeoBiology, University of Bergen, 5020 Bergen, Norway c Uni Environment, 5020 Bergen, Norway d Bergen Museum, Natural History Collections, University of Bergen, 5020 Bergen, Norway |
| Abstract: | Benthic samples from coastal locations off Southwestern Norway were examined and the specimens of Thyasiridae were identified to species. A multivariate analysis based on 13 parameters was carried out and the environmental preferences of all thyasirid species present were determined. The potential of the Thyasiridae as indicators of organic enrichment was investigated by using direct canonical correspondence analyses to identify correlations between selected environmental parameters and the collected biological data. The presence of Thyasira sarsi together with a low biodiversity is a good indicator of organic enrichment. High thyasirid species diversity seems to indicate good environmental conditions, and single thyasirid species that lack symbiotic bacteria might also be useful as indicators of good environmental conditions. |
| Keywords: | Atlantic Ocean Sediment Oxygen Multivariate analysis Thyasira |
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