First data on aquaculture of the Tripletail, Lobotes surinamensis, a promising candidate species for U.S. marine aquaculture
The Tripletail, Lobotes surinamensis, is a warm-water pelagic fish that is increasingly targeted by U.S. anglers. The superior quality of Tripletail flesh coupled with the lack of domestic commercial fisheries stimulated interests to develop aquaculture of this species. In this work, phototherma...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
Wiley
2025
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| Subjects: | |
| Online Access: | http://umt-ir.umt.edu.my:8080/handle/123456789/21570 |
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| Summary: | The Tripletail, Lobotes surinamensis, is a warm-water pelagic
fish that is increasingly targeted by U.S. anglers. The superior
quality of Tripletail flesh coupled with the lack of
domestic commercial fisheries stimulated interests to
develop aquaculture of this species. In this work, photothermal
conditioning of captive-held broodstocks promoted
maturation in females, but spontaneous spawning was not
observed. GnRHa slow-release implants induced ovulation
in late vitellogenic females but fertility remained below 10%
when GnRHa was administered alone. However, spawns
with high fertility (up to 85%) were obtained when a dopamine
antagonist was administered in conjunction with
GnRHa implants indicating dopamine inhibition impaired
final gamete maturation, in particular sperm production in
males, in aquaculture conditions. Tripletail larvae successfully
initiated exogenous feeding on enriched rotifers
followed by Artemia nauplii and were weaned to prepared
feeds at 25 days post hatch, yet with low survival through
the late phases of larval culture. Pilot grow-out trials at low
density in recirculating systems revealed impressive growth
rates averaging over 170 g/month through a market size above 1 kg. While protocols for hatchery culture and growout
still need to be optimized, current data suggest that Tripletail
could become a successful species for U.S. marine
aquaculture. |
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