Hammerhead shark. Photo by Kris Mikael Krister, Wikimedia Commons.
Recreational fishers are increasingly targeting sharks and rays, a situation that is causing concern among researchers.
A new study by an international team of scientists reveals that recreational catches of these fishes have gradually increased over the last six decades around the world, now accounting for 5-6 per cent of the total catches taken for leisure or pleasure.
Gulf grouper. Photo by Alfredo Barroso, Wikimedia Commons.
How much have humans affected the population of other species on the planet? A new methodology for documenting the cumulative human impacts on biodiversity aims to answer this question.
Dubbed EPOCH -for Evaluation of Population Change- the methodology was developed by a group of scientists from universities in Europe, Asia, and North America. It provides a standardized framework for organizing disperse data on individual species or populations of animals and plants that have been affected by urbanization, pollution, fishing, hunting, over-harvesting, and other anthropogenic activities.
Technological advances are allowing commercial fishing fleets to double their fishing power every 35 years and put even more pressure on dwindling fish stocks, new research has found.
Researchers from the Sea Around Us initiative at the University of British Columbia analyzed more than 50 studies related to the increase in vessels’ catching power and found that the introduction of mechanisms such as GPS, fishfinders, echo-sounders or acoustic cameras, has led to an average two per cent yearly increase in boats’ capacity to capture fish.
Instructors and participants at the CMSY workshop in Qingdao.
In June 2019, the Sea Around Us PI, Dr. Daniel Pauly, and Project Manager, Dr. Deng Palomares, co-hosted a successful, three-day workshop at the Institute of Oceanology of the Chinese Academy of Science (CAS) in Qingdao, a city on China’s Yellow Sea coast. They were assisted by graduate student Lu Zhai and long-time Sea Around Us collaborator Dr. Liang ‘Elsa’ Cui.
The Sea Around Us research initiative, based at the University of British Columbia and with a recently-opened ‘branch’ at the University of Western Australia, is turning 20 years old this June.