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ARS Home » Southeast Area » Fort Pierce, Florida » U.S. Horticultural Research Laboratory » Subtropical Plant Pathology Research » Research » Publications at this Location » Publication #384590

Research Project: Establishing Seedstocks for the U.S. Marine Finfish Industry

Location: Subtropical Plant Pathology Research

Title: Changes in Fatty Acids Profiles of Florida Pompano (Trachinotus carolinus) Larvae Reared at Different Salinities.

item MEJRI, SAHAR - Harbor Branch Oceanographic Institute
item RICHE, MARTIN - Harbor Branch Oceanographic Institute
item BRADSHAW, DAVID - Harbor Branch Oceanographic Institute
item URIBE, VICTORIA - Harbor Branch Oceanographic Institute
item KIRCHOFF, NICOLE - Live Advantage Bait, Llc
item PERRICONE, CARLIE - Harbor Branch Oceanographic Institute
item WILLS, PAUL - Harbor Branch Oceanographic Institute

Submitted to: Aquaculture America Conference
Publication Type: Abstract Only
Publication Acceptance Date: 2/20/2021
Publication Date: N/A
Citation: N/A

Interpretive Summary: N/A

Technical Abstract: As the United States production of warm water marine cultured fish increases, the demand for optimizing different culture aspects at different stages has been continuously arising. Florida pompano (Trachinotus carolinus) has been identified as a promising candidate for commercial scale aquaculture, but to date little information is available regarding its optimal salinity growth at the larval stage. Comparison of the fatty acid (FAs) profiles and patterns of use and conservation of the essential FAs of larvae at different stages (i.e., hatching, start of exogenous feeding, weaning etc.) and reared at various salinities will help identify the optimal salinity for growth, feed utilization and lipid metabolism and biosynthesis. The present study aims to describe and compare lipid and fatty acid use from Florida pompano larvae reared at various salinities. After 3 days’ post hatch (dph) at 30 ppt, larvae were incubated at 10, 20 and 30 ppt in triplicate. Samples for FA analysis were collected every three days until weaning, which occurred 24 dph. Fatty acid composition was analyzed using a gas chromatography-mass spectrometry. We hypothesize, that larvae reared at low salinity (i.e. 10 ppt) would express more energetic needs (more use of saturated and monounsaturated FA) and a more selective conservation of essential FA in their membranes than larvae reared at optimal salinity (i.e. 30 ppt). By understanding the energetic requirements at specific salinities and different developmental stages, we will be able to optimize Florida pompano culture and fatty acids requirements for optimal growth and health.