Life History
Eggs and sperm are shed into the sea and their union is by chance. Depending on size, a female may shed from 50,000 to several million eggs over the spawning season. Fertilized eggs hatch in about 24 hours. The newly hatched larva is about 0.1 inches (2.5 mm) long with a large yolk sack. Little is known about king mackerel in their first year of life. Yearling fish typically attain an average weight of 3 to 4 pounds (1.4–1.8 kg) and a fork length of 25 inches (60 cm). At age seven, females average 21 lb (9.5 kg), males 11 lb (5 kg). King mackerel may attain 90 lb (40 kg), but any over 15 pounds (7 kg) is almost certainly a female.
Read more about this topic: King Mackerel
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