1/1/2024 0 Comments Reef mantas![]() ![]() From vibrant coral to crazy macro critters, is a place of magic. ![]() Manta rays give birth to live offspring, usually at night.In a small corner of Indonesia, just off the north-westerly tip of Flores, lies the Komodo National Park. Inside her eggs develop which are incubated right there for about 12 months until they hatch. Thus, fertilization is internal, and afterward the male definitely goes away from the female. Eventually, one of the male bites the tip of a female pectoral fin and transfers sperm through one of its claspers (claspers are male copulatory organs) for 15-35 seconds. In breeding season the males chase the female to mate with it courtship can last about 2 hours. Fertility is low considering that these animals are related to sharks, and females usually have one offspring and occasionally two. In annual terms, an individual can travel between 270 and 500 kilometers.Įxperts suggest that females mature between 8 and 10 years old while males do so at an earlier age, about 6 years. They perform seasonal migrations that cover hundreds of kilometers and daily migrations that extend to about 70km. Interestingly, some reef manta rays can do somersaults slowly when they feed. It is presumed that another way to eliminate parasites is jumping out of the water, although this may also serve as a form of communication or even game. Sine parasites tend to adhere to their skin it has a habit of visiting “cleaning stations” in coral reefs where small fish remove organisms from its skin. Manta alfredi is distinguished by being a species that gather in groups when fed and able to travel along with other individuals. When eating their cephalic lobes are unwound and extended to allow the entry of water into the mouth. Its teeth are useless when feeding as this species filter food through plates called gill rakers that are found in their ventral gills. The reef manta ray is a large animal, but feeds on tiny creatures called plankton. Their habitats are often found near the coast and are found mainly near coral and rocky reefs and around atolls, bays, groups of islands and seamounts. The sightings in the Atlantic Ocean have actually been very few and have been fewer to the north. In Pacific waters stretching from the Honshu island and Ryukyu Islands in Japan to the Lone Islands, French Polynesia and the Hawaiian islands. There have been a greater number of sightings in the Indian Ocean, especially from the Red Sea to South Africa in the west of the ocean and from Thailand to western Australia in the eastern Indian Ocean. ![]() However, their distribution is not uniform and it is itself fragmented. The species is found in the Indian, Pacific and Atlantic oceans in tropical and subtropical waters. It has dark ventral spots and a clear tone at the tip of the pectoral fins. The shoulders are usually interspersed with clear and round patches that vanish as they descend through the body. The most common color pattern is black or dark in the upper body and white on the bottom. Individuals reach a weight of up to 1.4 tons.Ĭoloration. The most common is for the “disk” to measure between 3 and 3.5 meters. The size of the “disk” of an individual can grow up to 5.5 meters wide but is usually twice as long as wide. The females of this species show greater size than males, so there’s sexual dimorphism. Its lower jaw contains several tiny teeth of 1 to 2 millimeters long. The upper body has a small dorsal fin while the lower area near the mouth holds the gills from which it gets oxygen from water. Its characteristic body is wide and long with a central “disk” and ends in a tail like a whip. From the mouth structures called “cephalic lobes” extend, which are coiled when the animal is swimming. ![]() So it is not surprising that people refer to mantas as “birds of the sea”. The reef manta ray has a big body and two triangular-shaped pectoral fins that resemble the wings of a bird. Until 2009 manta rays were encompassed in a single species, but based on several studies scientists realized that they were two different species. The reef manta ray is a cartilaginous fish big in size, but less big than the giant manta ray ( Manta birostris). ![]()
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