Paul Merrett is Chef and Joint Owner of The Victoria in South West London, which has a Public House, Dining Room and Hotel. Paul can be seen most days cooking in The Victoria's kitchen.
Paul also dedicates time to School Food Matters, a campaign to raise the importance of food in schools and encourage kids to try cooking healthy and nutritious meals.
Paul explains why he thinks sustainable fish is so important and what he has done.
Man's desire to eat well must never endanger or even affect the general ecology of the natural world. I think we often forget the 'wider picture' as we open a tin of tuna for supper.
The whole balance of the ocean can be (indeed is being) affected by our greed. Once this balance is jolted, the recovery is anything but guaranteed.
My dad is a marine biologist - his last official position was as Head of Lower Vertebrates and Fish research at The Natural History Museum. Although now retired, he still takes an active interest in all things 'fishy' from the discovery of a new species right through to the content of his son's menu!
I remember him giving me long and worthy lectures about eating alternative sustainable varieties of fish even back in the 1970s. Before he retired he wrote a book about the impact that over-fishing is having on the species that live in deeper waters - the effect covers the whole ocean. He would simply refuse to eat at my restaurant if I were flogging monkish, skate, swordfish etc.
I take a keen interest in the sourcing of every product I use, both at home and in the restaurants. When it comes to fish, the Marine Conservation Society website has valuable up to date information for those not related to marine biologists! At the restaurant we work hard on training so that our staff are able to sell pollock in place of cod.
I would encourage any restaurant to take an interest in sustainable fish sourcing. In fact, I find it staggering that any chef would not be interested. I really believe that there is also a commercial value to going the 'sustainable' route. More and more customers are proving to be well-informed about such issues and they are prepared to try 'different' fish and indeed pay a little more for line caught species.
As a chef and lover of good food I see it as a responsibility of ours as a restaurant to respond to the issues surrounding food such as Fairtrade, air miles, ethical husbandry and of course sustainable fishing.
Get involved or get left behind - I honestly think that the time is fast approaching where there will be overwhelming customer demand for every restaurant to declare their support on all food fronts. Indeed legislation is also looming, which I would welcome too.

Allegra McEvedy MBE, chef, writer and presenter
"To stand by and do nothing, say nothing as we slowly drain the oceans of their livestock is to make one complicit, and that's just not a position with which I was comfortable."
Caroline Bennett, Moshi Moshi
"I am determined to do something about the way we fished the seas. We know the problems, we don’t even need any additional information to know how to fix them: we just have to get on and do it. No excuses."
Hugh Fearnley-Whittingstall, Fish Fight
“I have been travelling around the UK meeting fishermen, marine conservationists, politicians, supermarkets bosses, and of course fish-eating members of the public. It has changed the way I think about fish.”
Raymond Blanc OBE, Chef Patron, Le Manoir aux Quat'Saisons
“Good ethics should be part of everyday business. Many restaurants and caterers in this are helping to protect our precious marine resources. They should get rightful recognition and inspire others to do the same.”
Rosie Boycott, London Food Board
"Taking a sustainable approach to fish is critical to the food security of our city. It is shocking to think that within our lifetimes, we could lose some of our favourite species from the seas forever."

Silla Bjerrum, Feng Sushi
"Ensuring the future supply of fish is very important. Eating fish can be a component of a healthy lifestyle. Future generations rely on us to pass on healthy seas and maintain biodiversity."

Tim Hughes, Caprice Holdings
"It’s our duty to impart our knowledge to a wider audience, so everybody realises how important it is to cherish our fish stocks. I will continue to champion lesser-known species in plentiful and sustainable supply."

Sustainable Fish City is a Sustain campaign