Researchers conclude the most likely cause for the dramatic declines is commercial fishing
Shark numbers along the Queensland coast have declined by more than 90% for some species in the past five decades, according to new research that calls for better protections for sharks in Australian waters.
University of Queensland and Griffith University researchers analysed shark control program data to measure changes in shark populations along the Queensland coastline in a 55 year period.
Original Title: Shark numbers decline by up to 90% in five decades off Queensland coast
Full Text of the Original Article: https://www.theguardian.com/environment/2018/dec/14/queensland-shark-numbers-down-by-90-per-cent-in-55-years-for-some-species