Los camotillos, género Diplectrum, constituyen pesca dirigida en varios puertos pesqueros de Manabí, particularmente en Jaramijó y San Mateo. Sin embargo, no existe aún una normativa específica para su manejo, por lo que en el presente estudio se analizaron los principales aspectos biológico-reproductivos y pesqueros del camotillo espinoso Diplectrum labarum en el puerto de Jaramijó, Manabí, Ecuador, con la finalidad de recomendar medidas técnicas para su conservación. Durante enero a junio 2018 se registró información biométrica y biológica de este recurso obtenida de la flota artesanal. Se evaluaron 179 ejemplares, los cuales mostraron una talla promedio de 19,3 ±1,7 cm Lt (15 a 25 cm Lt) mientras que el peso total promedio fue 95,7±26 g (44,2 a 218,4 g). Las tallas más frecuentes fueron 17 a 21 y una moda a los 18,5 cm Lt. El peso eviscerado disminuyó entre 8,7 y 8,3 % en promedio con respecto al peso total. Todos los ejemplares muestreados eran hermafroditas pues presentaron ovotestis. Se identificaron cuatro estadios de madurez gonadal los cuales se observaron durante la mayor parte del periodo de estudio. Aunque la reproducción de D. labarum transcurrió durante todo el periodo de estudio, de acuerdo con el Índice Gonadosomático, la mayor actividad reproductiva fue en los meses de marzo y mayo mientras que durante enero se observó el valor mínimo. La relación longitud total vs peso total fue Pt=0,0351 Lt2,67, resultando el exponente significativamente menor a 3, sugiriendo un crecimiento del tipo alométrico negativo. La talla de madurez (L50) se estimó en 20.8 ± 0,6 cm LT y el animal maduro más pequeño midió 17,0 cm LT. La veda que aplica actualmente la Secretaría de Recursos Pesqueros durante febrero y marzo de cada año resulta adecuada para la conservación de D. labarum, ya que coincide con uno de los periodos de mayor intensidad reproductiva de la especie. Palabras clave: Talla de madurez, índice de condición, índice gonadosomático, veda reproductiva, crecimiento, alometría. Abstract The sand perches, genus Diplectrum, are target fishes in several fishing harbors in Manabí Province, particularly in Jaramijó and San Mateo. However, there is not yet a specific regulation for their management. In this study, the main biological, reproductive and fishing aspects of the highfin sand perch Diplectrum labarum were analyzed in the port of Jaramijó, Manabí, Ecuador, in order to recommend technical measures for its conservation. Between January and June 2018, biometric and biological information of this species were obtained from the artisanal fleet. A total of 179 specimens were evaluated, which showed an average size of 19.3 ± 1.7 cm Lt (15 to 25 cm Lt) while the average total weight was 95.7 ± 26 g (44.2 to 218.4 g). The most frequent sizes were 17 to 21 with a mode at 18.5 cm Lt. The eviscerated weight decreased between 8.7 and 8.3% on average with respect to the total weight. All individuals evaluated were hermaphrodites, presenting ovotestis. Four stages of gonadal development were identified and observed along the entire study period, which reveals that the reproductive activity took place along the study period. There were two periods of greater reproductive intensity, March and May, and a minimum in January. The total length vs. total weight relationship was Pt = 0.0351 Lt2.67, with the exponent significantly lower than 3, suggesting a negative allometric growth for the species. The size of first maturity was estimated at 20.8 ± 0,6 cm LT and the smallest mature individual was 17,0 cm LT. The ban currently being implemented by the Secretary of Fishery Resources during February and March of each year is suitable for the conservation of D. labarum since it coincides with one of the periods of greater reproductive activity of the species. Keywords: Size at maturity, condition index, gonasomatic index, reproductive season, growth, allometry. Fecha de recepción: 13 de noviembre de 2018; Fecha de aceptación: 07 de enero de 2019; Fecha de publicación: 09 de enero de 2019.The sand perches, genus Diplectrum, are target fishes in several fishing harbors in Manabí Province, particularly in Jaramijó and San Mateo. However, there is not yet a specific regulation for their management. In this study, the main biological, reproductive and fishing aspects of the highfin sand perch Diplectrum labarum were analyzed in the port of Jaramijó, Manabí, Ecuador, in order to recommend technical measures for its conservation. Between January and June 2018, biometric and biological information of this species were obtained from the artisanal fleet. A total of 179 specimens were evaluated, which showed an average size of 19.3 ± 1.7 cm Lt (15 to 25 cm Lt) while the average total weight was 95.7 ± 26 g (44.2 to 218.4 g). The most frequent sizes were 17 to 21 with a mode at 18.5 cm Lt. The eviscerated weight decreased between 8.7 and 8.3% on average with respect to the total weight. All individuals evaluated were hermaphrodites, presenting ovotestis. Four stages of gonadal development were identified and observed along the entire study period, which reveals that the reproductive activity took place along the study period. There were two periods of greater reproductive intensity, March and May, and a minimum in January. The total length vs. total weight relationship was Pt = 0.0351 Lt2.67, with the exponent significantly lower than 3, suggesting a negative allometric growth for the species. The size of first maturity was estimated at 20.8 ± 0,6 cm LT and the smallest mature individual was 17,0 cm LT. The ban currently being implemented by the Secretary of Fishery Resources during February and March of each year is suitable for the conservation of D. labarum since it coincides with one of the periods of greater reproductive activity of the species. Keywords: Size at maturity, condition index, gonasomatic index, reproductive season, growth, allometry.