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Will swordfish lay eggs?
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.
How long does it take for swordtail fish eggs to hatch?
Like other livebearing aquarium fish, swordtails (Xiphophorus hellerii) give birth to live young, or fry, rather than laying eggs. Although the swordtail’s gestation period is 28 days, it may be difficult to determine when she became pregnant.
How can you tell if a swordtail fish is pregnant?
The Eyes of the Fry and Signs of Impending Birth To accommodate the developing eggs, the mother’s body expands, becoming deeper and broader. A few days before delivery, she develops a bulge below the gills, her outline becoming fairly square in this region, while the gravid spot has enlarged its area.
How many babies do swordfish have?
Remember that they can produce offspring in as little as three months and would continue to give more every after 4-6 weeks. Another possibility to consider is the fact that this fish can produce 150 babies in one birthing.
Where do swordfish lay their eggs?
Previous data in related species suggest “males could stimulate the laying of eggs and proceed to release sperm once the stimuli are received,” he says. Like most fishes, swordfish fertilize eggs outside their bodies in the water rather than internally.
How do I know when my fish is about to give birth?
Look for the gravid spot on the fish’s abdomen near the rear tail. The spot should appear large and dark when her eggs are fertilized. You will know your fish is close to giving birth when the spot becomes nearly black. Some fish may show white spots instead of black.
Can female swordtails turn into males?
Swordtails commonly breed in community tanks. The urge to reproduce is so strong in this species that the females are hermaphroditic. In populations consisting entirely of females one will frequently transform into a male to insure the propagation of the species.
How long does it take Swordtails to give birth?
Platies 24-35 days. Swordtails 28 days. Mollies 50-70 days.
What does a sailfish look like?
The sailfish has a long, rounded spear extending from its snout but is distinguished from related species, such as marlins, by its slimmer form, long pelvic fins, and, most especially, its large sail-like dorsal fin. It is a deep blue fish, silvery below, with a bright blue, spotted dorsal fin.
Does a swordfish sword grow back?
Fishermen often catch swordfish with mangled swords, so breaking one isn’t fatal, but they do help their owners swim faster and feed. And they don’t seem to grow back, at least not for adults.
Do Swordfish lay eggs or give birth?
Swordfish migrate to warmer waters to spawn. The larger the female, the more eggs she will produce, and some females have been recorded to release as many as 29 million eggs! They are oviparous, which means that they have internal fertilization and lay eggs. Only a small percent of eggs will mature into adults.
What is the average size of a Swordfish?
However, the average size caught in the fishery is 50 to 200 pounds. 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 did the Swordfish get its name?
These fish are named for their long, sword-like flattened bill. Though they superficially look similar to other large billfish, they are actually in their own taxonomic family and not closely related to other billfish like marlin or sailfish.
What is the color of the Atlantic swordfish?
Their color is darkest on top, generally black or brown, and fades to a lighter color below. Atlantic swordfish are one of the fastest predators in the ocean. Their streamlined body allows them to swim at high speeds, up to 50 mph. They grow quickly and reach a maximum size of about 1,165 pounds.