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Salinity Tolerance of Juveniles of F...

Nugon, Robert Welsh,

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Salinity Tolerance of Juveniles of Four Varieties of Tilapia /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Salinity Tolerance of Juveniles of Four Varieties of Tilapia // Robert Welsh Nugon.
Author:	Nugon, Robert Welsh,
Description:	1 electronic resource (78 pages)
Notes:	Source: Masters Abstracts International, Volume: 83-12.
Contained By:	Masters Abstracts International83-12.
Subject:	Water quality. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29126297
ISBN:	9798819328088

Salinity Tolerance of Juveniles of Four Varieties of Tilapia /
Nugon, Robert Welsh,

Salinity Tolerance of Juveniles of Four Varieties of Tilapia /Robert Welsh Nugon. - 1 electronic resource (78 pages)

Source: Masters Abstracts International, Volume: 83-12.

Juvenile (4 g) tilapia of four varieties, Nile tilapia (Oreochromis niloticus), blue tilapia (O. aureus), Florida red tilapia (O. urolepis hornorum x O. mossambicus), and Mississippi commercial tilapia (Oreochromis spp.) were tested for salinity tolerance. This was accomplished by subjecting them to four salinity regimes during a 97-h period with as long as 63 h acclimation. Salinity regimes represented salinities found along coastal Louisiana. Each variety was challenged individually against every other variety and thus in triplicate. All four varieties are commercially produced in the southeastern United States. The Florida red tilapia and Mississippi commercial tilapia are hybrid-based varieties (distinct species were crossed to produce their lineages). Juvenile O. aureus, O. niloticus, and Florida red tilapia exhibited good survival (> 81%) in salinity regimes up to 20 ppt, with moderate survival of O. aureus (54%) and Florida red tilapia (33%) at 35 ppt salinity. Mississippi commercial tilapia survived salinity regimes up to 10 ppt and exhibited poor survival at 20 ppt (5%). The potential for acclimation and survival of juvenile tilapia in Louisiana's coastal aquatic habitats was evaluated based on a comparison of trial results with prevailing seasonal salinities in coastal waters. The study indicated O. aureus, O. niloticus, and Florida red tilapia could survive salinities throughout the year along coastal Louisiana. These results will allow Louisiana and other Gulf of Mexico states to more objectively evaluate risks associated with tilapia production in coastal watersheds by quantifying the salinity tolerances of two commercially important hybrid-based tilapia strains.

English

ISBN: 9798819328088Subjects--Topical Terms:

556913
Water quality.

Salinity Tolerance of Juveniles of Four Varieties of Tilapia /
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520 $a Juvenile (4 g) tilapia of four varieties, Nile tilapia (Oreochromis niloticus), blue tilapia (O. aureus), Florida red tilapia (O. urolepis hornorum x O. mossambicus), and Mississippi commercial tilapia (Oreochromis spp.) were tested for salinity tolerance. This was accomplished by subjecting them to four salinity regimes during a 97-h period with as long as 63 h acclimation. Salinity regimes represented salinities found along coastal Louisiana. Each variety was challenged individually against every other variety and thus in triplicate. All four varieties are commercially produced in the southeastern United States. The Florida red tilapia and Mississippi commercial tilapia are hybrid-based varieties (distinct species were crossed to produce their lineages). Juvenile O. aureus, O. niloticus, and Florida red tilapia exhibited good survival (> 81%) in salinity regimes up to 20 ppt, with moderate survival of O. aureus (54%) and Florida red tilapia (33%) at 35 ppt salinity. Mississippi commercial tilapia survived salinity regimes up to 10 ppt and exhibited poor survival at 20 ppt (5%). The potential for acclimation and survival of juvenile tilapia in Louisiana's coastal aquatic habitats was evaluated based on a comparison of trial results with prevailing seasonal salinities in coastal waters. The study indicated O. aureus, O. niloticus, and Florida red tilapia could survive salinities throughout the year along coastal Louisiana. These results will allow Louisiana and other Gulf of Mexico states to more objectively evaluate risks associated with tilapia production in coastal watersheds by quantifying the salinity tolerances of two commercially important hybrid-based tilapia strains.
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