Manta ray aquarium8/15/2023 ![]() ![]() ![]() Barb on tail (sting rays only), Flat disc shaped body, Gills under body, Large pectoral fins (fused to head),.Caudal fin (tail), Spindle shaped body, Gills on side of body, Large Pectoral fins.Apart from this and a few other key features they couldn’t be more different. Elasmobranchs are fish who have cartilaginous skeletons rather than bone. Sharks cruise through the water like torpedoes, while rays swim gracefully like a bird soaring, but are they really related? Yep, they sure are! They are the main groups that make up the Elasmobranch family. ![]() The lighter skin underneath a ray blends in with the sun on the surface. Darker skin on top makes them difficult to see from above, bending in with the deep ocean. When born, juveniles must immediately fend for themselves.īaby Stingrays are born fully developed, however overtime their colour changesĪids in camouflage and helps some manta rays evade predators. The gestation period can range anywhere from a few weeks to a whole year (manta ray). Most rays give birth to live young however some lay eggs. This snout may be used to catch fish, and also has electroreceptors to detect passing prey. Sawfish – 6 SpeciesĪ sawfish’s snout is a long, flat blade that has about 20 teeth on either side. Fertilised skates eggs are deposited in hard cases sometimes called mermaid’s purse.Įlectric rays are capable of producing an electric discharge, ranging from 8 to 220 volts, (depending on species) This is used to stun prey or as a defence mechanism. Skates are oviparous which means they lay eggs unlike stingrays who live birth. Manta Ray at SEA LIFE Melbourne Aquarium.That’s a lot of plankton!Ī stingray’s barb usually breaks off after use and can take up to a whole year to regrow, Stingrays avoid using this defence unless they feel it is absolutely necessary. Manta Rays are the largest species of ray growing up to 7m wide and weighing upwards of 1000kg! Due to their large body size they must eat 13% of their body weight in plankton every week. ![]()
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