What is the life cycle of a swordfish?
Swordfish live about 9 years. Females are able to reproduce between 4 and 5 years of age. Depending on their size, females can produce anywhere from 1 million to 29 million eggs. They spawn multiple times throughout the year in warm tropical and sub-tropical waters.
How many offspring does a swordfish have?
This is when they can begin reproduction. Mature females are considerably larger than males. Swordfish reproduce by laying eggs, that is to say that they are oviparous. Female swordfish can lay anywhere between 1,000,000 and 30,000,000 eggs at one time and fertilization is external.
Do swordfish live in groups?
They do not generally swim in groups or schools. Together with the marlin, it is one of the fastest fish in the ocean.
How long does it take for a swordfish to grow full size?
They reach maturity at 4–5 years of age and the maximum age is believed to be at least 9 years. The oldest swordfish found in a recent study were a 16-year-old female and 12-year-old male.
How do swordfish reproduce?
During spawning, male-female pairs form, but they reproduce through external (rather than internal) fertilization, where the female releases her eggs into the water column while the male releases his sperm. Once the sperm find the eggs, fertilization occurs.
What depth do swordfish live?
Generally an oceanic species, the swordfish is primarily a midwater fish at depths of 650-1970 feet (200-600 m) and water temperatures of 64 to 71°F (18-22°C). Although mainly a warm-water species, the swordfish has the widest temperature tolerance of any billfish, and can be found in waters from 41-80°F (5-27°C).
Do swordfish hunt sharks?
A swordfish (Xiphias gladius) uses its bill in a duel between another top predator: a shark. It sounds like an unlikely match, but this highly mobile, predatory fish has been recorded to attack sharks since the early 1960’s!
What do you need to know about Swordfish for kids?
Swordfish Facts for Kids ~ All About The Swordfish. Swordfish are best known for their long bill—a long, flat, sword-like bill that’s longer than those of other bill fish. 2. Young swordfish have scales, while adult swordfish don’t. Adult swordfish lose their teeth and scales as soon as they reach at least 3 feet (1 meter) in length.
How does a sword fish reproduce at one time?
Swordfish reproduce by laying eggs, that is to say that they are oviparous. Female swordfish can lay anywhere between 1,000,000 and 30,000,000 eggs at one time and fertilization is external. The mother lays eggs and allows them to develop externally from her body. It is a common method of reproduction for many fish.
How big do Swordfish get when they hatch?
The timing of spawning in swordfish depends upon where they live – it may either be year-round (in warmer waters) or during the summer (in cooler waters). The young are about .16 inch long when they hatch, and their upper jaw becomes more noticeably longer when the larvae are about .5 inch long.
Where does a Swordfish live in the ocean?
Swordfish. This type of large predatory fish is best known for its long flat bill that highly resembles a sword. A tropical and temperate fish, they mostly live in warmer parts of the Indian, Pacific and Atlantic Ocean in deep waters.