An important component of many studies of fish reproductive biology is the assessment of
the stage of gonad development of individual fish. The methods in use vary from highly …

Oogenesis has been defined as the “processes involved in the growth and maturation of the
ovum in preparation for fertilization.”* Some biological definitions of oogenesis have …

Reproduction and control of ovulation, spermiation and spawning in cultured fish Page 26
CHAPTER 1 REPRODUCTION AND CONTROL OF OVULATION, SPERMIATION AND …

The effects of the polyunsaturated fatty acids (PUFAs), arachidonic acid (AA),
eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and prostaglandins (PGs) on …

The estrogen-inducible egg yolk precursor, vitellogenin, of the European sea bass
(Dicentrarchus labrax) has received considerable scientific attention by virtue of its central …

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 …

Demographic data and gonad histology confirmed that the dusky grouper Epinephelus
marginatus is a protogynous hermaphrodite that follows a monandric pathway to sexual …

Coastal and estuarine (CE) areas are essential fish habitats; they act as nurseries for a large
proportion of species of fisheries interest but face high levels of cumulative anthropogenic …

Expression of insulin-like growth factor (IGF)-I, IGF-II, and IGF type I receptor (IGF-1R) genes
was studied in gonads at different developmental stages of the protandrous hermaphroditic …

Pelagic egg development in red drum, Sciaenops ocellatus, is described using tiered
staging. Based on mitosis and meiosis, there are five periods: Mitosis of Oogonia, Active …