What question did this study set out to answer?

The aim is to develop models for estimating fork length of Atlantic bonefish based on head measurements.

January 23, 2026Journal of Applied Ichthyology0 citationsOpen Access

Predicting Atlantic Bonefish ( Albula vulpes ) Fork Length From Head Morphometry

MLMichael LarkinNOAA National Marine Fisheries Service JAJerald S. AultUniversity of Miami

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The aim is to develop models for estimating fork length of Atlantic bonefish based on head measurements.
Conducted predictive modeling using generalized linear statistical analyses.
Examined 257 Atlantic bonefish from South Florida.
Measured four head morphometry covariates: snout length, eye diameter, postorbital head length, and head length.
Assessed correlations between morphometric measurements and fork length.
Each morphometric measurement was highly correlated with fork length, with coefficients of determination from 0.9592 to 0.9959.
Head length showed the strongest correlation with fork length.
Total length was also found to be highly correlated with fork length.
No significant sexual dimorphism was detected among measurements.

Resumen

This study developed predictive models using generalized linear statistical analyses to estimate Atlantic bonefish ( Albula vulpes ) fork length (FL) dependent on four head morphometry covariates: snout length, eye diameter, postorbital head length, and head length. A total of 257 South Florida bonefish were examined, which ranged from 28 to 720 mm FL. Each of the morphometric measurements was highly correlated with FL, with coefficients of determination ( r 2 ) that ranged from 0.9592 for eye diameter to 0.9959 for head length. Total length (TL) was also highly correlated with FL. Sex differences in the morphometric measurements were examined; however, no significant sexual dimorphism was detected. All of the morphometric measurements examined were good predictors of Atlantic bonefish FL and TL.

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