A massive freshwater mussel bed (Bivalvia: Unionidae) in a small river in Ukraine
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Institute of Hydrobiology of Academy of Sciences of Ukraine, Kiev, Ukraine
CIIMAR/CIMAR – Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Portugal
IUCN-SSC – Mollusc Specialist Group, Cambridge, United Kingdom
CBMA – Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Braga, Portugal
Manuel Lopes-Lima   

CIIMAR/CIMAR – Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
IUCN-SSC – Mollusc Specialist Group, 219 Huntingdon Road, Cambridge, United Kingdom
Submission date: 2015-07-30
Final revision date: 2015-09-16
Acceptance date: 2015-09-19
Publication date: 2015-11-17
Folia Malacol. 2015;23(4):273–277
During a monitoring survey, a massive mussel bed was found and studied in the Gnily Rig River, Ukraine. The mussel bed was 25 cm thick and multilayered, with one of the greatest densities and biomass (wet weight) recorded so far in natural aggregations: up to 1,801.0 ± 175.4 ind./m² and up to 88.3 ± 20.7 kg/m², respectively. The site was surveyed periodically since 2009, and despite the temporal differences in the density (but not in biomass) the mussel bed was stable and should be considered for protection due to its high ecological and conservational value.
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