bottom trawling

Orange roughy are easy to over fish. So, humans do. But that doesn't seem to be stopping moves to re-define them as 'sustainable' by the Marine Stewardship Council.

True, when we started fishing orange roughy we didn’t know that this slow-growing, long-lived, deep water fish was particularly susceptible. But now we definitely do. Orange roughy can live to a staggering 150 years old, and are at least 30 years old before they are mature enough to breed. To put that into context: there are probably orange roughy alive today that were born when Queen Victoria was on the throne, and they take about 10 times longer to mature than Atlantic cod.

You probably know that climate change is melting Arctic ice with astonishing speed. While some hear a warning bell, others see a business opportunity and as the ice disappears, oil companies and fishing fleets are moving further north than ever before, keen to exploit the unexplored ocean opening up at the top of the world.

Every once in a while in my meanderings through the web, I come across something that really hits the spot - like this amazing animation from Phil Reynolds, for example. Phil's taken an idea from Charles Clover's book about overfishing, The End of the Line, and he uses it beautifully to illustrate the problem of 'bycatch' - the non-commercial species which are also killed during the process of bringing our favourite fish species to the table.

Bottom trawling, possibly the most destructive fishing method yet devised by man, is to be regulated across the whole North Atlantic ocean. The process, which involves dragging nets weight down by metal girders across the seabed, is notorious for its wastefulness. Besides legitimate target species such as cod, plaice and sole, vast quantities of corals, sponges and other deep sea creatures are destroyed as bycatch. The devastation caused is so great that Greenpeace has been calling for some time for a moritorium (suspension of activity) on bottom trawling. Now it looks as though some progress may be being made.

In a big boost to our 'sustainable seafood' campaign Sainsbury's, the largest fishmonger in the UK, has announced that from the end of April it will sell only line-caught fresh cod and haddock to its 16 million customers.