The spermatozoa of most fish species are immotile in the testis and seminal plasma.
Therefore, motility is induced after the spermatozoa are released into the aqueous …

Communication between spermatozoa and egg before contact by chemotaxis appears to be
prevalent throughout the animal kingdom. In non-mammalian species, sperm chemotaxis to …

Sperm competition occurs when sperm from more than one male compete for fertilizations
[1]. This form of post-copulatory sexual selection is recognized as a significant and …

This study investigated the relationships between semen fertilization capacity and sperm
motility, seminal plasma composition and sperm metabolism in the rainbow trout …

This review presents actual knowledge about energetic, ionic, osmotic and gaseous control
of fish sperm motility and its duration. Right after they are activated, fish spermatozoa of most …

Sperm competition, the contest among ejaculates from rival males to fertilize ova of a female,
is a common and powerful evolutionary force influencing ejaculate traits. During competitive …

Fish spermatozoa acquire potential for motility in the sperm duct where they are immotile.
Osmolality of the seminal plasma is a key factor to maintain spermatozoa in the quiescent …

We review the phylogeny, sperm competition, morphology, physiology, and fertilization
environments of the sperm of externally fertilizing fish and amphibians. Increased sperm …

The photoenhanced toxicity of weathered Alaska North Slope crude oil (ANS) was
investigated in the eggs and larvae of Pacific herring (Clupea pallasi) with and without the …

The lifespan of spermatozoa from externally fertilizing freshwater fish ranges from a few
seconds to several minutes, depending on the species. External factors, such as …