Int. J. Biosci.22( 3), 24-29, March 2023
The length-weight relationship and condition factor of four-wing flyingfish, Hirundichthys affinis from the west coast of Surigao del Norte, Philippines was studied for three months from December 2022 to February 2023. A total of 252 samples were collected, measured, and analyzed in the laboratory of Surigao del Norte State University-Malimono Campus. The formula W= aLb, which was transformed into the logarithmic form Log W = Log a + b Log L, was used to estimate the length-weight relationship. The growth coefficient b found ranged from 3.099 to 3.121, showing positive allometric growth. The correlation coefficients (R2) for the period of December 2022 to February 2023 were 0.9148, 0.9441, and 0.9354, respectively, demonstrating a strong relationship and high degree of correlation between the fish’s length and weight. The four-winged flying fish species in this study were in good condition, as indicated by the relative condition factor (Kn), which ranged from 1.00 to 1.02.
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