2012
DOI: 10.15359/revmar.4.5
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Feminización de juveniles del Robalo Blanco Centropomus Undecimalis (Bloch 1792) usando 17β-Estradiol

Abstract: El robalo blanco Centropomus undecimalis es un pez protándrico hermafrodita con un alto valor comercial y potencial de cultivo en México y Estados Unidos de América, y en Centroamérica y el Caribe es sustento importante de su pesca artesanal. Diversos estudios indican que las hembras aparentemente presentan un mayor crecimiento que los machos. El objetivo del presente estudio consistió en evaluar el efecto de la suplementación del esteroide 17-β estradiol (E2) en el alimento sobre la proporción de sexos de est… Show more

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Cited by 7 publications
(8 citation statements)
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“…Differences in size and development within each age-group were presumably due to the protracted spawning period that is typi-cal for Common Snook (April through September; Taylor et al 1998). Our observations on the development of juvenile testes are consistent with the results of a laboratory study describing the early gonadal development in Common Snook (Vidal-López et al 2012). However, it is highly unlikely that any age-2 males examined reached breeding condition during their first potential spawning season as age-1 fish in the preceding year (springsummer 2005), given the very early developmental stage of age-1 testes.…”
Section: Discussionsupporting
confidence: 87%
“…Differences in size and development within each age-group were presumably due to the protracted spawning period that is typi-cal for Common Snook (April through September; Taylor et al 1998). Our observations on the development of juvenile testes are consistent with the results of a laboratory study describing the early gonadal development in Common Snook (Vidal-López et al 2012). However, it is highly unlikely that any age-2 males examined reached breeding condition during their first potential spawning season as age-1 fish in the preceding year (springsummer 2005), given the very early developmental stage of age-1 testes.…”
Section: Discussionsupporting
confidence: 87%
“…These studies have examined the use of different steroids and dosages, lengths of steroid treatment and gonad development. With centropomids, specifically C. undecimalis and C. parallelus, positive results were obtained when the steroid was supplied using food or implants, obtaining high percentages of feminization in both species (Vidal-López et al, 2012;Passini et al, 2016).…”
Section: Discussionmentioning
confidence: 99%
“…Green et al (1997) attempted to differentiate induction of sex change, in undifferentiated and differentiated fish, by arguing that the term "sex inversion" is defined as the process where the undifferentiated gonad is directed to a particular sex, and "sex reversal" as the induction of a differentiated gonad to become that of the opposite sex. In the case of hermaphroditic species, both terms stand, since sex change can be induced during both stages of gonadal development, supported by the successful sex inversion of juvenile sea bream, Sparus aurata (Condeça & Canario, 1999); common snook, C. undecimalis (Vidal-López et al, 2012; and fat snook, C. parallelus . While sex reversal has been documented for adult blue-spotted grouper, Epinephelus fario (Kuo et al, 1988), black porgy, Acanthopagrus schlegeli (Chang, et al, 1994(Chang, et al, , 1995, black sea bass, Centropristis striata L. (Benton & Berlinsky, 2006), three-spot wrasse, Halichoeres trimaculatus (Nozu, et al, 2009), and adult fat snook (Passini et al, 2016).…”
Section: Discussionmentioning
confidence: 99%
“…In a recent study of feminization with common snook juveniles, the administration of 50 mg kg −1 of E2 in the diet for 21 days resulted in up to 93% of females (Vidal‐López et al . ). These results, together with the present study, demonstrate that E2 can induce both change in undifferentiated fish (feminization) and sex reversal in adult common snook.…”
Section: Discussionmentioning
confidence: 97%
“…; Du, Lee, Tacon, Lee, Yen, Tanaka, Dufour & Chang ; Wu, Tomy, Lee, Lee, Yueh, Lin, Lau & Chang ). There has also has been a study on feminization of the common snook by the E2 hormone (Vidal‐López, Álvarez‐González, Contreras‐Sánchez, Patiño, Hernández‐Franyutti, Hernández‐Vidal & Martínez‐García ), but there are no records in the literature of studies using implants with 17‐β oestradiol in adult common snook.…”
Section: Introductionmentioning
confidence: 99%