Pacific sharpnose shark

About the Pacific sharpnose shark

The Pacific sharpnose shark (Rhizoprionodon longurio) often migrates along the Pacific coast of Mexico. They are most commonly caught in the artisanal fishery of Mazatlán. When a large sample of Pacific sharpnose sharks were observed scientists concluded that this type of shark was a "viviparous shark of small size which is born at an average length of 31 cm." Their gestation period is between ten and eleven months.

There was found to be no statistical relationship between the number of embryos to the average length as a result of scientific research. Specialists David Corro, Leonardo Castillo Geniz and J. Fernando Marquez-Farias, found that the sex ratio of this specific Shark is one to one with the average number of embryos per female, being around 7.4.

The Pacific sharpnose shark inhabits the coastal waters of the eastern tropical Pacific Ocean. They can be found from southern California to all the way to Peru (Compagno, 1984). The shark is fished commercially in the Pacific Ocean off Mexico from the Gulf of California to Puerto Madero, Chiapas. The Pacific sharpnose likes muddy bottom areas, however it is not known whether it utilizes coastal lagoons... Wikipedia →