Estimation of Fillet/Food Calorie Ratio as an Index of Energy Assimilation in Some of the Marine Water Fishes from Saudi Arabia PDF

Keywords

fillet, fish, energy values

Abstract

The energy values in the fillet and gut content of some predominantly carnivorous fishes were determined in order to derive a parameter for expressing the biomass in terms of energy units. The energy values of the nutrients in the fillet/food, determined by Organic Carbon and Karzinkin Tarkovaskaya Methods for five species, were in order; Scomberomorus commerson (13534.91/ 6405.50 and 15409.96/6874.72 J g/m); Epinephelus tauvina (12636.44/ 6462.66 and 13864.16/ 6702.22 J g/m); Alepes djeddaba (10931.29/6466.71 and 12529.99/ 6726.13 J g/m); Valamugil seheti (10758.89/6068.03 and 1197.04/6604 J g/m) and Lethrinus harak (7602.53/5034.98 and 10278.65/6202.57 J g/m) respectively. The implications of the results obtained by the method used, have been indicated and the ratio between the energetic values of food and fillet have been given. Consistency of the results obtained in each fish clearly indicate the reliability of the method used.