RESEARCH ON NUTRITIONAL CHARACTERISTICS OF SPOTTED SNAPPER (Lutjanus russellii Bleeker, 1849) IN BA RIVER ESTUARY,  PHU YEN PROVINCE

Nguyễn Minh Ty

doi:10.34238/tnu-jst.8868

RESEARCH ON NUTRITIONAL CHARACTERISTICS OF SPOTTED SNAPPER (Lutjanus russellii Bleeker, 1849) IN BA RIVER ESTUARY, PHU YEN PROVINCE

About this article

Received: 29/09/23 Revised: 05/01/24 Published: 03/02/24

Authors

Nguyen Minh Ty , Institute of Applied Technology - Thu Dau Mot University

Abstract

The spotted snapper (Lutjanus russellii Bleeker, 1849) is a species of the family Lutjanidae in the order Perciformes. This is an economic fish species that numbers are decreasing. Spotted snapper research samples were collected from February 2022 to December 2022 in Ba river estuary Phu Yen province. The results analysis of 265 samples show that spotted snapper was an omnivorous. The correlation coefficients of intestine length and standard length (RLG) of fishes weighted from 1000 grams or more was 1.248±0.312 and this coefficient increased from 0.417±0.975 for fishes weighted (34–65 grams) to 1.248±0.312 for fishes weighted over 1000 grams. The correlation between length and weight of spotted snapper is shown by the equation W = 26357.10^-6L^3.3332. The food composition in the digestive tract of adult spotted snapper includes 6 types of food: crustaceans, fish, worms, molluscas, organic detritus and algae. Among them, crustaceans (65.8%) get the highest rate and it is the main food in the food spectrum.

Keywords

Spotted snapper; Lutjanus russellii; Nutritional characteristics; Ba river estuary; Phu Yen province

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DOI: https://doi.org/10.34238/tnu-jst.8868

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