Development of aquaculture methods for southern flounder, Paralichthys lethostigma: II. Nursery and grow-out

Daniel D Benetti, A. J. Leingang, R. Russo, T. M. Powell, D. Cleary, S. W. Grabe, M. W. Feeley, O. M. Stevens, K. L. Main

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Nursery and growout trials of hatchery-raised southern flounder, Paralichthys lethostigma, were conducted in tanks and raceways using recirculating systems. Three-month-old juveniles were stocked at 0.5/L in 800-L round tanks and raised in sea water for three months before being acclimated to freshwater and transferred to a 24-ton raceway, where they remained until they were 14 months old. Fish were exposed to salinities ranging from 0-32 ppt and temperature ranging from 17-30°C. Southern flounder grew to an average 169 g (±68.92 SD) and 25.06 cm (±4.30 SD) in 420 days (14 months after hatching). Growth rates of 3- to 14-month-old southern flounder in this experimental trial are expressed by the exponential equation y = 0.0773 e0.0188x (r2 = 0.77). Overall feed conversion ratio was 0.79. Survival rate of 22.5% was achieved during the nursery and grow-out trials. Mortality occurred mainly due to the outbreak of diseases such as ectoparasitic infestations of the copepod Argulus sp. and the dinoflagellate Amyloodinium ocellatus. A large number of slow-growing, stunted fish suggests that early selection of the fast-growing fish belonging to the large size class for grow-out is currently the best alternative for the successful culture of this species.

Original languageEnglish (US)
Pages (from-to)135-146
Number of pages12
JournalJournal of Applied Aquaculture
Volume11
Issue number1-2
DOIs
StatePublished - 2001

Fingerprint

aquaculture method
aquaculture
raceways
fish
recirculating system
Amyloodinium
hatchery
dinoflagellate
early selection
recirculating aquaculture systems
hatching
methodology
hatcheries
seawater
salinity
mortality
Copepoda
feed conversion
survival rate
Paralichthys lethostigma

Keywords

  • Growth
  • Paralichthys lethostigma
  • Recirculating system
  • Southern flounder

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology

Cite this

Development of aquaculture methods for southern flounder, Paralichthys lethostigma : II. Nursery and grow-out. / Benetti, Daniel D; Leingang, A. J.; Russo, R.; Powell, T. M.; Cleary, D.; Grabe, S. W.; Feeley, M. W.; Stevens, O. M.; Main, K. L.

In: Journal of Applied Aquaculture, Vol. 11, No. 1-2, 2001, p. 135-146.

Research output: Contribution to journalArticle

Benetti, DD, Leingang, AJ, Russo, R, Powell, TM, Cleary, D, Grabe, SW, Feeley, MW, Stevens, OM & Main, KL 2001, 'Development of aquaculture methods for southern flounder, Paralichthys lethostigma: II. Nursery and grow-out', Journal of Applied Aquaculture, vol. 11, no. 1-2, pp. 135-146. https://doi.org/10.1300/J028v11n01_10
Benetti, Daniel D ; Leingang, A. J. ; Russo, R. ; Powell, T. M. ; Cleary, D. ; Grabe, S. W. ; Feeley, M. W. ; Stevens, O. M. ; Main, K. L. / Development of aquaculture methods for southern flounder, Paralichthys lethostigma : II. Nursery and grow-out. In: Journal of Applied Aquaculture. 2001 ; Vol. 11, No. 1-2. pp. 135-146.
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