Evaluating the microbial effects of stocking freshwater snails (Physa gyrina) in water reuse systems culturing rainbow trout (Oncorhynchus mykiss)

John Davidson; Carol Zygar Plautz; Casey Grimm; Niels O. G. Jørgensen; Raju Podduturi; Clayton Raines; Ryan Snader; Steven Summerfelt; Christopher Good

doi:10.1080/10454438.2018.1541771

Evaluating the microbial effects of stocking freshwater snails (Physa gyrina) in water reuse systems culturing rainbow trout (Oncorhynchus mykiss)

John Davidson, Carol Zygar Plautz, Casey Grimm, Niels O. G. Jørgensen, Raju Podduturi, Clayton Raines, Ryan Snader, Steven Summerfelt, Christopher Good

Microbial Ecology and Biotechnology

1 Citation (Scopus)

22 Downloads (Pure)

Abstract

A study was conducted to analyze the effects of snails (Physa gyrina) on biofilm, bacterial abundance, off-flavor-producing bacteria, and off-flavor compounds in reuse aquaculture systems culturing rainbow trout (Oncorhynchus mykiss). Eight experimentalscale systems were used, including four with and without snails. Mean heterotrophic bacteria counts in water were lower (P < 0.05) in systems with snails. Submerged surfaces of sumps containing snails were nearly biofilm-free, while sumps without snails were coated with biofilm. Geosmin levels in trout fillets from snailstocked systems were generally lower but not statistically different from the controls. Rainbow trout health and performance was not affected by snail presence.

Original language	English
Journal	Journal of Applied Aquaculture
Volume	31
Issue number	2
Pages (from-to)	97-120
ISSN	1045-4438
DOIs	https://doi.org/10.1080/10454438.2018.1541771
Publication status	Published - 3 Apr 2019

Keywords

Biofilm
geosmin
off-flavor
recirculating aquaculture systems
snails
water reuse

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10.1080/10454438.2018.1541771Licence: CC BY

Evaluating the microbial effects of stocking freshwater snails (Physa gyrina) in water reuse systems culturing rainbow trout (Oncorhynchus mykiss)Final published version, 2.74 MBLicence: CC BY

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Davidson, J., Plautz, C. Z., Grimm, C., Jørgensen, N. O. G., Podduturi, R., Raines, C., Snader, R., Summerfelt, S., & Good, C. (2019). Evaluating the microbial effects of stocking freshwater snails (Physa gyrina) in water reuse systems culturing rainbow trout (Oncorhynchus mykiss). Journal of Applied Aquaculture, 31(2), 97-120. https://doi.org/10.1080/10454438.2018.1541771

Evaluating the microbial effects of stocking freshwater snails (Physa gyrina) in water reuse systems culturing rainbow trout (Oncorhynchus mykiss). / Davidson, John; Plautz, Carol Zygar; Grimm, Casey et al.

In: Journal of Applied Aquaculture, Vol. 31, No. 2, 03.04.2019, p. 97-120.

Research output: Contribution to journal › Journal article › Research › peer-review

Davidson, J, Plautz, CZ, Grimm, C, Jørgensen, NOG , Podduturi, R, Raines, C, Snader, R, Summerfelt, S & Good, C 2019, 'Evaluating the microbial effects of stocking freshwater snails (Physa gyrina) in water reuse systems culturing rainbow trout (Oncorhynchus mykiss)', Journal of Applied Aquaculture, vol. 31, no. 2, pp. 97-120. https://doi.org/10.1080/10454438.2018.1541771

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KW - geosmin

KW - off-flavor

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Evaluating the microbial effects of stocking freshwater snails (Physa gyrina) in water reuse systems culturing rainbow trout (Oncorhynchus mykiss)

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Keywords

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