A better way to farm fish? | FT Food Revolution

Aquaculture, or fish farming, is the fastest growing form of food production in the world. Most fish farming is done in pens out at sea, but that comes with significant environmental problems. High-tech, land-based fish farms are still a niche part of the industry, but that may well change, as scrutiny about the way our seafood is raised intensifies.

#fishfarming #aquaculture #foodproduction

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[kendallkahl]

A lot of Salmon fish farming is trying integrating with other aquaculture. By raising mussels that filter the water it takes waste out of the water and then by aquaculture of seaweeds it further lowers the nutrient load. Its too bad salmon raised in such a way don't have a separate label.

[Jason-busv]

On shore closed loop aquiculture will gravitate towards cheaper land and lower energy away from costal regions. Ambient Ground temperature will also be a significant factor as ground temperature close to that required the farmed species need will lower cost. Closed RAS systems don't require much water so they could be located in non arable desert location. Algae bioreactors technology is advancing rapidly and will mitigate need for wild caught fish meal...

[campiramulaudzi]

Isn't it that even corn was once wild?

[davidanalyst]

The couple at 4:10 were intolerable, annoying, and were luddite hippies. Ignore that bullcrap, and get better food to eat. For everything good, from the interstate highways, to solar energy, wind energy, and computers, and internet, there are people like that couple saying it makes them feel yucky.

[walkingfish]

I've raised tilapia for 2yrs and its been a great adventure. I do grow most of their food. I rasie minnows, red worms, meal worms and soldier larvae. Find a restaurant willing to save their scraps and it turns into free food for my family

[pancakeface]

Here in the Pacific Northwest the Columbia River system once returned an estimated 16 - 20 million naturally produced adult salmon, yearly. Since the middle of the 19th century, human development and conversions in land and resource use have all but eliminated the ability of the river system to produce salmon naturally. Modern returns are 1 -2 million salmon, the majority are fish hatchery origin. The hand of man falls heavily on the land, sea, and air. Why? Follow the money.

[whyno]

Use invasive Asian Carp as salmon pellets?

[lukelee]

It's called greed. If the salmon farmers wanted sustainability, its easy. Just copy exactly how wild salmon feed. Algae, insects, small fish etc. But that's too expensive. 😅

[DC]

1) grow algae near the shores to capture CO2 and fertilizer ingriendents from the water
2) feed the algae to small fish in indoor tanks
3) feed the small fish to medium size fish in another tank
4) produce salmon food by mixing the medium, small fish and farmed insects.
5) you have eliminated the need to catch wild fish and can apply for gov funding for the algae farming in industrial scale

[freeforester]

The sea based salmon farms in Scotland produce more effluent in the waters than all the population on the West of Scotland. We get that in our marine environment, the players take the money. Quite an ‘externality’!

[zettaiengineer]

Chinese peasant farmers are masters of sustainability. Legumes pull nitrogen from the air. Nitrogen enriched soil grow crops watered by mineral laden water. The crops feed the family and farm animals. Solid waste from the mammals is spread as fertilizer on the fields, liquid waste flows into ponds which promotes algae growth that feed carp that feed the family. Aside from sun, CO2, and water, all other required inputs N, P, K, minerals, as well as carbon in crop waste are indefinitely recycled back to their land.

[curtisclifton]

I own a fish market and we throw tons of fish scraps away every week.You could make pellets out of this to feed the salmon.

[skyak]

Salmon have been grown and put into the great lakes for decades to control populations of native species.
I don't know enough about fish farming to argue, but it seems crazy to bury fish farms under abusive regulations while international fish poaching is devastating our oceans DESPITE breaking international laws that are inadequate!

[brittanykasha]

I’m glad that this is solution based but the loud sounds and lack of sunlight look bad for the fish. I don’t have a better solution. And like I said I’m glad that people are thinking solution based but like can we focus on restoring more rivers to their natural state to give salmonids more space to exist and detoxifying our oceans etc?

[francisfreyre]

A very good educational video! Thank you for it; It would be marvelous if we could grow sustainable, clean, healthy non stress fish on land. that really would help a lot. Regards.

[anandv.l]

Why don't we skip the salmon and eat the insects. Certainly environment friendly😂

[varcoliciulalex]

God forbid someone will ruin you nice coastline. Should we create less environmentally impactful, sustainable solution, nah because we will spoil the view of some rich people.

[ntoken]

fin rot is obvious in some of the underwater shots.

[Hyperion]

What about content od DHA and EPA in farmed fish?

[andrewday]

I saw a video on a facility that grew insects using farm waste then fed the insects to fish farms