1. Effect of substrate particle size on burrowing of the juvenile freshwater pearl mussel Margaritifera margaritifera
- Author
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Heini S. H. Hyvärinen, Mari Saarinen-Valta, Jouni Taskinen, and Eero Mäenpää
- Subjects
early juvenile stage ,hiekka ,uhanalaiset lajit ,biology ,siltation ,unionida ,Zoology ,sedimentit ,Water exchange ,endangered species ,Aquatic Science ,biology.organism_classification ,Substrate (marine biology) ,eläinten käyttäytyminen ,Life stage ,Predation ,behaviour ,jokihelmisimpukka ,toukat ,sediment ,Freshwater pearl mussel ,Juvenile ,Particle size ,Margaritifera - Abstract
Juveniles of the endangered freshwater pearl mussel (FPM,Margaritifera margaritifera) live burrowed in stream substrate for the first years of their life. Fine sediments block water exchange within substrate and may cause juvenile mortality and recruitment failure. To better understand the connection between success of juvenile FPM and substrate particle size, it would be important to understand behavioural responses of FPM to varying substrate sizes at this critical life stage. We placed newly detached FPM juveniles in a 7-mm layer of sieved sand sorted into five sizes (
- Published
- 2021