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Fish Facts

Fish facts and facts about fish, from the Random Facts shelf.

9 facts on this shelf

How many eggs can a Mackerel lay

The mackerel is a moderately prolific fish; females of medium size may produce as many as 400,000 to 500,000 eggs in the aggregate, according to various estimates,[10] with 546,000 reported for one weighing 17/8 pounds. But it is seldom that as many as 50,000 are set free at any one time, and often many fewer

How shrimp and fish work together

“Cleaner shrimp” feed off the parasites that live on fish. To attract passersby in the market for a cleaning, the shrimp do a little dance. Fish taken in by the shrimps’ choreographed moves will respond by “striking a pose,” which signals the cleaner shrimp to start washing and waxing … kind of like an underwater car wash.