A great deal of information is known regarding the process of sex differentiation in fish, and
the mechanisms involved in primary sex determination are now beginning to be defined. A …

Environmental pollutants such as metals, pesticides, and other organics pose serious risks
to many aquatic organisms. Accordingly, a great deal of previous research has …

The present review focuses on the roles of estrogens and aromatase (Cyp19a1a), the
enzyme needed for their synthesis, in fish gonadal sex differentiation. Based on the recent …

In many species of cultured finfish, females exhibit higher growth rates than males and attain
larger sizes. In addition, in some species, males mature before reaching marketable size …

Many natural and synthetic compounds present in the environment exert a number of
adverse effects on the exposed organisms, leading to endocrine disruption, for which they …

Mature male goldfish were exposed to different concentrations of the natural hormone 17β-
estradiol (E2). Two methods of exposure were employed, via ingestion at 0, 1, 10 and 100 …

Sex-change is an intriguing phenomenon that is common among certain groups of teleost
fishes. The process itself has a number of independent origins, although in each case it is …

The long-term impacts on marine ecosystems of the recent dramatic worldwide increase in
the incidence of coastal hypoxia are unknown. Here, we show widespread reproductive …

Abstract Black porgy, Acanthopagrus schlegeli Bleeker, a marine protandrous
hermaphrodite, is functional male for the first two years of life but begins to sexually change …

Protandrous black porgy fish, Acanthopagrus schlegeli, have a striking life cycle with a male
sex differentiation at the juvenile stage and male-to-female sex change at 3years of age. We …