Artificial reproduction
Artificial reproduction
© Schlumberger/CEMAGREF

Fresh water fish rearing in Viet Nam
Fresh water fish rearing in
Viet Nam

© Morissens/CIRAD

Rearing fresh cat-fish
Rearing fresh cat-fish
© Morissens/CIRAD

Aquaculture is an ancient activity. The first oyster beds are thought to have been created in Rome a century B.C. Catching young fish for rearing purposes has been practised in Asia for centuries.

In the Middle Age, rearing carps and eels in ponds was already widespread in Europe.

Today, aquacultural production is expanding rapidly, and has tripled since World War II. Asia remains the first producer of reared fish (70% the world production), the OCDE countries contributing another 25%.

French aquaculture is relatively significant within the OCDE countries. The main production comprises molluscs, shellfish, fresh water fish (salmon and trout), that of sea water is on the increase, and includes eels, mules, bars, shrimps, and shellfish..

The production techniques are particularly sophisticated and have evolved towards a more intensive production. Today, artificial insemination, hatcheries and basin rearing are the main characteristics of aquaculture in industrialized countries.

"Sea gardener"
© Barbaroux/IFREMER

Fish, molluscs and some algae !

Fish accounts for 85% the world sea production, with an additional 10% for molluscs, and 5% for shellfish.

Shrimps, crabs and sea-spiders are the three main shellfish species. Other species are of lesser importance, but some are highly appreciated for their savour, like lobster and crayfish.

Molluscs like oysters, mussels, clams, and shells are either reared in parks or fished.

Brown algae may be cooked, or may be used as manure, or as components by pharmaceutical and cosmetic companies. Their production has increased a lot over the last few years, half the world production being Chinese.

Fish and sea products | World's food | Agropolis-Museum