Fisheries and Aquaculture Fact Sheet

The world fish catch is a measure of the productivity and health of the oceanic ecosystem that covers 70 percent of the earth's surface. The extent to which world demand for seafood is outrunning the sustainable yield of fisheries can be seen in shrinking fish stocks, declining catches, and collapsing fisheries.

Seafood plays a vital role in world food security. Roughly 3 billion people get about 20 percent of their animal protein from fishery products.

The world fish catch has hovered around 90 million tons over the last 20 years.

The wild fish catch per person has dropped dramatically, from 17 kilograms (37.5 pounds) per person at its height in 1988 to 13 kilograms in 2012—a 37-year low.

Over four fifths of the world’s fisheries are either considered fully exploited, with no room for safely increasing the catch, or they are already overfished and in need of rebuilding.

Small forage fish account for over half the supply of food fish in 36 countries, including the Maldives, the Philippines, and Ghana.

In 2012, world farmed fish production topped beef production for the first time in modern history.

China accounts for 60 percent of world farmed fish production.

Wild fish play a large role in the production of meat, milk, eggs, and farmed fish. Some 6 million tons of fishmeal and 1 million tons of fish oil are produced each year. Nearly all of the fishmeal is fed to farmed fish, pigs, and poultry; 74 percent of fish oil goes to fish farms.

Some aquacultural producers are scaling back. Between 1995 and 2007, the fishmeal content in shrimp feed dropped from 28 percent to 18 percent. The drop was even more dramatic for salmon, from 45 percent to 24 percent.

People will likely eat more fish from farms than from the wild in 2014, a historical milestone. As the world’s oceans are fished to their limits, any increase in world fish consumption will come from farms. Fish farming output is expected to increase 33 percent by 2021.

Well-managed marine reserves, where fishing is off-limits, help protect biodiversity and rebuild fish stocks. Fish catch and tourism revenue outside reserve boundaries often increase. More

 

© 2014

Threat to food security

Warming sea temperatures and ocean acidification put the millions around the world who rely on the sea, at risk.

He sat shirtless on his thin bamboo floor in a home built on posts rising out of the Banda Sea. Tadi had just returned in his dugout canoe from scanning crevices in a nearby reef for octopus. He and his neighbours spend every day this way – scouring the ocean for something to eat or sell. Fishing, here, is about survival.

Their stilt village on Hoga Island, Indonesia, has no industry, no land, no running water. They dive without oxygen, wearing hand-carved wooden goggles, and carry spearguns hacked from logs with their machetes. They eat what they catch and sell the rest, using the money to buy everything else they need: boat fuel, root vegetables, rice and wood.

Without fishing, “how would I feed my family?” asked Tadi, who like many Indonesians has only one name.

Now Tadi’s community, like countless others across the globe, is on a collision course with the industrialised world’s fossil fuel emissions. Hundreds of millions of people around the world rely on marine life susceptible to warming temperatures and ocean acidification, the souring of seas from carbon dioxide emitted by burning coal, oil and natural gas. That includes US Pacific Northwest oyster growers and crabbers in the frigid Bering Sea, who now face great uncertainty from shifts in marine chemistry.

But from Africa to Alaska, many coastal communities face a substantially greater risk. These cultures are so thoroughly dependent on marine life threatened by carbon dioxide that a growing body of research suggests their children or grandchildren could struggle to find enough food. The science of deciphering precisely who might see seafood shortages remains embryonic, but with many of the most at-risk coastal communities already facing poverty, marine pollution, over-fishing and rising seas, the potential for calamity is high.

“I can’t tell you how many people will be affected,” said Sarah Cooley, at Woods Hole Oceanographic Institution in Massachusetts, who studies links between acidification and food security. “But it’s going to be a very big number.”

Said Andreas Andersson, an acidification and coral reef expert with the Scripps Institution of Oceanography in San Diego: “These people are literally going to be fighting for their lives.” More