Humpback red snapper. Photo by Julien Bidet for MDC Seamarc, Wikimedia Commons.
Warming waters, king tides and storm surges are not the only things affecting the availability of seafood in the Marshall Islands. Incomplete reporting of fisheries catches and, therefore, of how much is being taken out of the oceans also is.
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.
Largehead hairtail. Public domain photo.
Fish that are highly valued by Chinese consumers, such as largehead hairtail, would grow in value and in the amounts that are caught if industrial fisheries increased the mesh size of their nets.
New research by the Sea Around Us initiative at UBC’s Institute for the Oceans and Fisheries found that trawlers operating in China’s coastal waters are overfishing 21 economically important species because the mesh size is so small that, together with large, desirable fish, undersized fish are also getting caught. This means that fish are being taken out before they are able to reproduce.
Daniel Pauly. Photo by Paul Joseph, UBC.
The Sea Around Us Principal Investigator, Dr. Daniel Pauly, is amongst the top 0.01% of the world’s scientists based on the impact of his publications.
Japanase sardinella. Image by Totti, Wikimedia Commons.
Smaller fish and invertebrates, such as gazami crab or Japanese sardinella, are replacing larger, more commercially valuable fish such as largehead hairtail in the Bohai Sea in northeastern China.
A new study by scientists with the Chinese Academy of Sciences and the Sea Around Us initiative at the University of British Columbia’s Institute for the Oceans and Fisheries shows that industrial fisheries have severely affected food webs in the Bohai Sea, with organisms that occupy lower levels in the food web becoming more common than larger predators.