Swordfish eggs develop into embryos in approximately 2. Soon, it develops into a pelagic larvae measures only 4 mm in length. The body of the fish starts to narrow around this stage as well, gradually resembling the shape of an adult swordfish.
At around 50 cm in length, the development of the dorsal fin will also start to resemble the shape of an adult swordfish. Reproductive behavior and mating will be mostly limited from March to July in most waters. This is because these months provide the warmer temperatures that they prefer. In some waters, due to the warmer temperatures for an extended period of time, they will be able to extend their mating season.
The reason that the sword fish tend to stick to the warmer regions of water during reproduction and throughout most of their life is a nearly negligible source of inner body heat regulation. As ectothermic animals, which rely almost entirely on the environmental heat to stay alive. Although they can venture into colder waters, they will not stay in colder waters for too long. As highly migratory species, they will most likely move to waters with favorable temperatures as needed.
Swordfish can be found slicing through the warmer waters of the Pacific, Atlantic and Indian oceans at high speeds. Surprisingly, this mostly nocturnal fish do not tend to live for much longer than 10 years. Fortunately, due to efforts of many, the population of swordfish have recovered from its lowest point.
These efforts include the U. The establishment of minimum size limit and area closures that occurred in the years that followed must have helped the swordfish get a chance to reproduce and rebuild their population. Even when the harpoon method is used, swordfish are still extremely dangerous and they put up a fierce resistance. Measure content performance. Develop and improve products.
List of Partners vendors. Share Flipboard Email. Jennifer Kennedy. Marine Science Expert. Jennifer Kennedy, M. Updated December 13, Featured Video. Cite this Article Format. Kennedy, Jennifer.
Swordfish: Habitat, Behavior, and Diet. Your Privacy Rights. To change or withdraw your consent choices for ThoughtCo. At any time, you can update your settings through the "EU Privacy" link at the bottom of any page. These choices will be signaled globally to our partners and will not affect browsing data.
We and our partners process data to: Actively scan device characteristics for identification. I Accept Show Purposes. Photo Source: PicomyIsland. Swordfish, next to the Marlin, are one of the fastest and most powerful fish in the ocean.
Externalization of fertilization…what does that even mean? The female swordfish, who is actually much larger than her male counterpart, ejects her eggs into the water, which are then fertilized by a flow of sperm from the male. Photo Credit: Buzzle. In the US Natural Resources Defense Council released a communications plan to create awareness around the overfishing of this truly magnificent trophy.
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