Evaluating the microbial effects of stocking freshwater snails (Physa gyrina) in water reuse systems culturing rainbow trout (Oncorhynchus mykiss)
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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; Jørgensen, Niels O. G.; Podduturi, Raju; Raines, Clayton; Snader, Ryan; Summerfelt, Steven; Good, Christopher.
I: Journal of Applied Aquaculture, Bind 31, Nr. 2, 2019, s. 97-120.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Evaluating the microbial effects of stocking freshwater snails (Physa gyrina) in water reuse systems culturing rainbow trout (Oncorhynchus mykiss)
AU - Davidson, John
AU - Plautz, Carol Zygar
AU - Grimm, Casey
AU - Jørgensen, Niels O. G.
AU - Podduturi, Raju
AU - Raines, Clayton
AU - Snader, Ryan
AU - Summerfelt, Steven
AU - Good, Christopher
PY - 2019
Y1 - 2019
N2 - 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.
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.
KW - Biofilm
KW - geosmin
KW - off-flavor
KW - recirculating aquaculture systems
KW - snails
KW - water reuse
U2 - 10.1080/10454438.2018.1541771
DO - 10.1080/10454438.2018.1541771
M3 - Journal article
VL - 31
SP - 97
EP - 120
JO - Journal of Applied Aquaculture
JF - Journal of Applied Aquaculture
SN - 1045-4438
IS - 2
ER -
ID: 208875966