A1 Journal article (refereed)
Pulsed flow-through cultivation of Margaritifera margaritifera : effects of water source and food quantity on the survival and growth of juveniles (2021)

Hyvärinen, H. S. H., Chowdhury, M. M. R., & Taskinen, J. (2021). Pulsed flow-through cultivation of Margaritifera margaritifera : effects of water source and food quantity on the survival and growth of juveniles. Hydrobiologia, 848(12-13), 3219-3229. https://doi.org/10.1007/s10750-020-04225-x

JYU authors or editors

Publication details

All authors or editors: Hyvärinen, Heini S. H.; Chowdhury, M. Motiur R.; Taskinen, Jouni

Journal or series: Hydrobiologia

ISSN: 0018-8158

eISSN: 1573-5117

Publication year: 2021

Volume: 848

Issue number: 12-13

Pages range: 3219-3229

Publisher: Springer

Publication country: Netherlands

Publication language: English

DOI: https://doi.org/10.1007/s10750-020-04225-x

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/68370

Abstract

Conservation of the endangered freshwater pearl mussel (FPM) includes artificially rearing juveniles, but the pulsed flow-through (PFT) method, enabling the continuous renewal of water and food in culture containers, has not been applied to FPM. This study tested the PFT method in culture of FPM juveniles, and the effect of water source (tap vs well water) and food concentration (mixture of commercial phytoplankton products) on the survival and growth of juveniles. Beaker-specific survival rates varied from 0 to 100% (mean: 34%) and from 0 to 58% (mean: 16%) in the 1st (2-week) and 2nd (10-week) experiment, respectively. In the 1st experiment, juveniles attained statistically significantly bigger sizes and more than two times higher survival in well water than they did in tap water. In both experiments, the food concentration of 0.250 µl/l resulted in the highest survival (compared to other concentrations ranging from 0.125 to 0.500 µl/l). However, food concentration did not have a significant effect on size of juvenile FPM in either of the experiments. Results indicate that the PFT system is suitable for FPM rearing experiments, but its applicability to mass culture of FPM juveniles requires further investigation.

Keywords: endangered species; species protection; Margaritana margaritifera; aquaculture

Free keywords: endangered species; freshwater pearl mussel; captive breeding; artificial culture; Unionida

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Ministry reporting: Yes

Reporting Year: 2020

JUFO rating: 1