Breeding varies from species to species, but generally occurs in one of three ways. In most cases, females drop eggs in water. This is
How many times a year do fish breed?
Some teleost fish lay eggs many times a year. Many teleosts breed once a year until they die. Other teleosts can breed only once in their lifetime. Pacific salmon (Salmonidae) breed only once during a five-year lifespan and then die shortly thereafter.
Do fish breed only once?
Some fish breed multiple times throughout the year (eg salmon flea, guppy, mollies, swordtail, platis), others breed only in certain seasons, some fish It breeds only once and dies when sperm or eggs are released (eg Pacific salmon). 26 июн. 2018
How fast do fish breed?
For most fish, this process takes 2-4 weeks. Examples of living species include guppy and platyfish. After a female mates and gives birth to a fry, it does not necessarily have to mate again to give birth. Some fish are known to breed regularly in the absence of males.
How do most fish breed?
Almost all fish reproduce sexually and are of different genders. Fertilization is generally done externally and most fish are oviparous. Many adults of the same species can gather in groups and simultaneously release gametes into the water. This is called spawning.
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