Researchers have a new estimate: where there were about 1.7 million boats harvesting fish in 1950, the number more than doubled to 3.7 million fishing vessels in 2015. While only 20 percent of the global fishing fleet was powered by motors in 1950, this number rose to 68 percent in 2015. The growing fishing fleet is, however, catching less seafood for the same effort. This new study published in the Proceedings of the National Academy of Sciences.
— source news.mongabay.com | 6 Jun 2019