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 Citationer (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.

Originalsprog	Engelsk
Tidsskrift	Journal of Applied Aquaculture
Vol/bind	31
Udgave nummer	2
Sider (fra-til)	97-120
ISSN	1045-4438
DOI	https://doi.org/10.1080/10454438.2018.1541771
Status	Udgivet - 3 apr. 2019

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10.1080/10454438.2018.1541771Licens: CC BY

Evaluating the microbial effects of stocking freshwater snails (Physa gyrina) in water reuse systems culturing rainbow trout (Oncorhynchus mykiss)Forlagets udgivne version, 2,74 MBLicens: CC BY

Citationsformater

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

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, bind 31, nr. 2, s. 97-120. https://doi.org/10.1080/10454438.2018.1541771

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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.",

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AU - Jørgensen, Niels O. G.

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AB - 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.

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KW - geosmin

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KW - recirculating aquaculture systems

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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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