Females frequently mate with several males, whose sperm then compete to fertilize
available ova. Sperm competition represents a potent selective force that is expected to …

The escape of fish from aquaculture is perceived as a threat to wild fish populations. The
escapes problem is largely caused by technical and operational failures of fish farming …

While both sperm number and quality are now recognized to be important in determining the
outcome of sperm competition, very few studies have experimentally assessed the influence …

Sperm cryopreservation is a valuable technique that can enhance the efficiency of genetic
improvement programs, commercial production and endangered species conservation …

In present study, it was examined whether addition of different antioxidants to the
cryopreservation extenders had an effect on semen post-thaw fertility and motility in rainbow …

The objective was to investigate changes, throughout the spawning season, in body size
attributes and quantitative semen characteristics of wild-caught and cultivated Atlantic cod …

Background Substantial variation in male fertility is regularly observed in farmed Arctic charr.
However, detailed investigations of its fluctuation during a reproductive season and across …

In many species, sperm velocity affects variation in the outcome of male competitive
fertilization success. In fishes, ovarian fluid (OF) released with the eggs can increase male …

Broodstock selection programs are currently underway for Atlantic cod (Gadus morhua). To
complement and further these selection programs we need to develop sperm …

Males compete pre-and post-mating to fertilize the maximum number of eggs. In polyandry,
sperm competition occurs when sperm from two or more males compete to fertilize eggs …