This study describes growth and reproductive characteristics of a facultative elasmobranch symbiont, Echeneis naucrates. Females grew slower but achieved a larger size than males (growth coefficient, K = 0.25 and 0.38 year−1, and mean maximum size, L∞ = 603 and 477 mm, respectively). Mean relative batch fecundity was 39.5 (s.d. = 13.1). Gonadosomatic indices peaked in July and August for males and females, respectively, with histology evidence of readiness to spawn or active spawning in August. Host-symbiont length ratios increased linearly with sharksucker length (y = 0.0402 + 0.0003x, adjusted R2 = 0.56).
CITATION STYLE
Bachman, B. A., Kraus, R., Peterson, C. T., Grubbs, R. D., & Peters, E. C. (2018). Growth and reproduction of Echeneis naucrates from the eastern Gulf of Mexico. Journal of Fish Biology, 93(4), 755–758. https://doi.org/10.1111/jfb.13790
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