First data on aquaculture of the Tripletail, Lobotes surinamensis, a promising candidate species for U.S. marine aquaculture

Abstract

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 M201-13-01; Perciformes Group LLC

First Record of a Rare Species Atlantic Triple Tail, Lobotes Surinamensis (Bloch, 1790) From the Northwest Coast of India

“…However, mature females can be identi ed through an ovarian biopsy using a catheter, while males do not release milt through manual stripping. Generally, the Atlantic tripletail reaches maturity at around 2 years, with males measuring approximately 380 mm in length and females ranging from 494 to 594 mm (Saillant et al, 2021). Supracleithrum and posttemporal bones were observed in the present study, which matches with the description given by (Kharin et al, 2009).…”

Infection of Atlantic tripletail Lobotes surinamensis (Teleostei: Lobotidae) by brain metacercariae Cardiocephaloides medioconiger (Digenea: Strigeidae)

“…Atlantic tripletail is a new report of a fish intermediate host for C. medioconiger , and this finding is particularly significant because L. surinamensis is being considered for extensive aquaculture in the USA ( Saillant et al, 2021 ). Because the populations of intermediate hosts (and consequently their parasites’ life cycles) can be amplified in aquaculture settings that may create favorable habitats ( e.g.…”

“…, in Baughman, 1943 ; Moravec, Walter & Yuniar, 2012 ; Dewi & Palm, 2017 ) and none are metacercariae in their brain or eyes. The high quality of its flesh, the growing interest from anglers, and preliminary successful larval culture make this fish a promising candidate for mariculture in the US ( Saillant et al, 2021 ). Thus, the objective of this study was to examine these fish for the presence of neutrotropic parasites that could potentially explain their altered swimming behavior.…”