The gilthead seabream is a protandrous hermaphrodite seasonal breeding teleost with a
bisexual gonad that offers an interesting model for studying the two first reproductive cycles …

Exposure to 17α-ethynylestradiol (EE2, 5 μg/g food) impairs some reproductive events in the
protandrous gilthead seabream and a short recovery period does not allow full recovery. In …

The wrasse, Pseudolabrus sieboldi, is a diandric protogynous labrid fish. Spawning is
performed by a terminal phase (TP) male and an initial phase (IP) female between 6: 00 and …

Serum levels of 17β-hydroxy-4-androstene-3, 11-dione (11-KT) and testosterone in the
protogynous black sea bass, Centropristis striatus fluctuate annually, correlated with the …

Plasma and gonadal levels of several gonadal steroids (testosterone, 11-ketotestosterone,
androstenedione, 11β-hydroxyandrostenedione, 17β-estradiol, and estrone) were …

Two experiments were performed using the aromatase inhibitor (AI) letrozole (100 mg/kg) to
promote sex change, from female-to-male, in protogynous dusky grouper. One experiment …

Sex steroids have been suggested to be involved in gonadal sex change in hermaphrodite
fish. Aromatase, the enzyme that catalyzes the conversion of androgens into estrogens, is a …

Levels of plasma testosterone (T) and 11-ketotestosterone (11-KT) in males and plasma 17β-
estradiol (E 2), 17α-20β-dihydroxy-4-pregnen-3-one (17α, 20β-diOH-P), and T in females …

The plasma levels of both the free and conjugated forms of six sex steroids
(androstenedione, testosterone, 11-oxotestosterone, 11β-hydroxytestosterone, estrone, and …

Levels of serum sex steroids (estradiol-17β, E2; testosterone, T; 11-ketotestosterone, 11-KT)
in male, female and natural sex-reversing red-spotted grouper (Epinephelus akaara), and …