This act delivers the sperm for the fertilization of the eggs. If the latter accepts the courtship, the former would insert its clasper inside the oviduct of the female. Before mating, the male blue shark would induce a bite between the first and the second dorsal fin of the female. These creatures are polygamous and reproduce through viviparity after they attain the age of sexual maturity when they are around 5 to 6 years old. Various fishes like haddock, pollock, flounders, mackerel, herring, sea raven, silver hake, white hake, red hake, butterfish, and cod are also common.īlue Shark Teeth Reproduction & Life Cycle Their diet includes squids, octopuses, lobsters, crabs, small sharks, and occasionally seabirds. They are carnivorous, opportunistic predators feeding on about 24 species of cephalopods and 16 species of fish. They are curious and fancy approaching the shores and are often seen by divers and boats. However, all-male or all-female groups have also been seen. There is also clear evidence of hierarchy in a group that is usually determined by size, sex, etc. The sharks are social in nature and move in small to medium size schools. They have also been reported to perform acrobatics out of the water surface while chasing prey. No other data about communication is available. They communicate with each other through movement gestures or body language. In such cases, the blue shark can prove to be one of the fastest-moving fish. In general, these sharks are lethargic and slow swimmers, and would only increase their moving speed when they get stimulated by other factors including views of other underwater animals that can be their prey. Blue sharks are nomadic animals that can migrate over long distances in search of food or for mating.
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