Our understanding of the diversity of sexual strategies occurring in nature has increased
dramatically in the last years. This is particularly true in the area of determination of an …

In the common Azorean rock-pool blenny, Parablennius parvicornis, males exhibit
alternative reproductive morphologies:(1) larger males defend nest sites, provide parental …

SPECIES with multiple sexual phenotypes provide novel insights into neuroendocrine
mechanisms underlying vertebrate sexuality. Many fish species are capable of socially …

Gonadotropin releasing hormone-like immunoreactive (GnRH-ir) cells in both the ganglion
of the terminal nerve (TN) and the preoptic area (POA) have been implicated in the …

The pituitary gland controls many important physiological processes in vertebrates,
including growth, homeostasis, and reproduction. As in mammals, the teleost pituitary …

Sex change in the protandrous fish Amphiprion akallopisos Bleeker, 1853 (F.
Pomacentridae) has been analysed. Experiments consisted of placing males together after …

Gonadal structure and cellular composition were examined in juveniles, males and females
of the protandric hermaphrodite, Amphiprion melanopus. Functional sex change was …

Some teleost fishes change their sex, and some of these fishes have specific gonads known
as “ovotestes,” that is, gonads containing both ovarian and testicular tissues. In this study …

Reproductive success relies on the coordination of social behaviours, such as territory
defence, courtship and mating. Species with extreme variation in reproductive tactics are …

Reproductive function in all vertebrates is controlled by the brain-pituitary-gonadal axis. In
teleost fish, endocrine cells within the adenohypophysis are grouped together and each …