A better way to farm fish? | FT Food Revolution
HTML-код
- Опубликовано: 20 ноя 2024
- 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
See if you get the FT for free as a student (ft.com/schoolsa...) or start a £1 trial: subs.ft.com/sp....
► To learn more, visit our website - channels.ft.co...
► Watch more videos from this series here - • FT Food Revolution
► Check out our Community tab for more stories on the economy.
► Listen to our podcasts: www.ft.com/pod...
► Follow us on Instagram: / financialtimes'
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
This is another way of doing it. I will have to take a screenshot of your idea and work on it to better improve my plan.
Funding has been my setback so far
That amount of algae will kill any life around it. It's even more unsustainable. Think simpler, decentralised and use what nature already provides.
We run into that conversion rate of wild fish feed vs marketable salmon. Wild salmon are voracious predators, and more than likely ate far more than 1.5 times their body weight at time of capture. The wild salmon predate on a variety of other marine organisms, some of which might face their own existential threats; by feeding fishmeal to farmed salmon, that might take some pressure off other species in the wild. Fishmeal typically is produced from small fish low down the food chain, often filter-feeders, such as anchoveta caught off Peru.
Our question should be: salmon or no salmon, rather than farmed vs caught. A few years ago, salmon was cheaper than beef. That is out of kilter.
This is what cannabis induced dreams look and sound like...
😅 it's actually brilliant
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
@walkingfish7123 Where are you? Is it possible for a customer to buy your fish??
@grovermartin6874 I'm in Arizona and I'd like to sell but my family loves fish and we don't grow much more than what we eat. I'd like to expand but it is a part time job to keep them on my table
@@walkingfish7123 That works out well! You're a good role model, from the sound of it!
Where do you stay please?
@@danielating1316 Arizona
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.
Large scale fishing disrupt their habitat and affect their ability to reproduce
Bring down the Snake dams
A large issue is on those hatchery fish we see an average of like 2-10% returns. We are also raising retarded fish in concrete tanks nothing like the river systems they are going to be living in. We allow people to walk up and feed them and unnaturally keep them protected from predators and disease instead of teaching them survival capabilities.
Let’s keep pushing to take the dams down! It’s the only way they will return meaningfully
Probably a lot of pollution too
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.
I wast thinking the same thing, there should be grades of sustainability when buying these products where ocean farms run on fossil fuels and use hormones and chemicals get a 1, and something like a closed system aquaculture like you described run on green energy gets a full sustainability rating, for the little bit of seafood I do eat I would pay a premium for that.
Yeah, I see it in the Chinese system, and I think they add something in the bottom like sea cucumber to eat the waste that drops on the floor.
The numbers don’t add up on that, too much effluent comes from salmon cages out in the sea waters, the mussels would be buried. And they’re a bit susceptible to the chemicals that the farmed salmon are routinely dosed with to try to deal with sea lice parasites and any disease outbreaks; not quite what you want in your moules marinères…..
DEEP SEA AQUACULTURE SOLVES MUCH OF THIS!
@@JXZ-JAM can you give us some examples please ?
This is definately the future, much better than some fish farms today --- Brilliant! 👍
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!
The salmon farmers are constantly breaking regulations.
Most fish farms are just disgusting- its not easy to grow salmon
It is indeed highly hypocritical of allowing the release of salmon/trout into non native habitats for recreational fishing of all things and call for the regulation of fish farming, however i think this is a step in the right direction, and there's absolutely no reason why multiple problems can't be tackled at the same time.
In Scotland the only "ranching" projects hailed a succes are those originally funded by the salmon farming industry as outright greenwashing campaigns. If the fish are returning, then the farms can't be to blame. However, in each of these cases, the same low return percentage is observed as in other rivers in the aquaculture zone. Tagging studies have yet to release data @@quitlife9279
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’!
Both Canada and Norway r making much needed improvements to their fish/salmon farms, giving rest of the world an excellent examples. Hopefully much more noticeable industry transition on larger scale to more sustainable fish farming will be made sooner than later to make it more impactful. Thank u FT for highlighting this issue!
I just learned of a cleaner fish that can help manage sea lice. that sounds very intriguing as a natural remedy.
@@trinydex Try to eat the sea lice instead, that would be even better natural remedy for u and definitely for the fishes. U got perfect win - win there!
@@El.Duder-ino why would I eat the sea lice if another creature could do it instead
@@trinydex In case u wanna help fishes and sustainable fish farming😉
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...
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.
@7:17 It's not just so fancy restaurants can get better margins on fancy salmon dishes than if those were made with wild salmon. It's also so people can go to the economy grocery store (say, one of the German owned ones) and think we are getting a real treat with relatively cheap Atlantic salmon from like Chile.
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.
americans don't eat carp. I do love Dace, and it is great for Fresh water systems. I think the Filipino is mixing Dace and Tilapia because they live in different part of the pond and both can survive in high density ponds, but I hate, and really hate Tilapia.
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.
Why are you throwing it away? Surely you're throwing money away?
You should phone your local bait manufacturer, they make it into berley, you could get 50nc per pound plus. You
Then throw tons of salmon and repeat it 😂
there is a company that containerized a fly breeding apparatus that is fed by food waste. the flies are turned into animal feed.
it would be interesting to find out if they can feed on fish scraps. the containerization helps mitigate transportation. you bring the apparatus to the community instead of trucking around waste.
I think this Fish Farming technique shows great promise for the future of aqua-culture.
Use invasive Asian Carp as salmon pellets?
I wonder why they never thought of that. I mean, that was my first thought when I conceived the idea of farming fish.
Grass and silver carp reproduce in record numbers so there will be a constant supply of food for my main stock, and plus they help filter a bit of water and clear debris/grasses
@@bidav2114 Asian carp taste good with cajin spices.
@@Murray-wk3hz so I've heard and I intend on doing myself the honour of tasting such delicacy one day. I heard pikeperch taste great too...I do have a list of fish species I'd love to raise. I favoured trout over salmon though it not a popular idea out there
Good idea but you'd have to subsidise the production as they're kind of a pain to get out of rivers. You would be competing with trawlers in my own home of Thailand that go all over the world and scrape the bottom of anything alive and turn it into protein for fish/shrimp food. This is very destructive, probably illegal and the chef's kiss is that they often use slave labour on the boats -- you work on a boat that doesn't land for three years then they tip you over the side instead of paying you. If we could get rid of that nonsense, I'd say that turning insects into fishfood is the best bet.
The size of the fillet of an Asian carp is relatively small compared to the total mass of the fish. They are less than 30 percent of the weight of the fish. That leaves lots of carp to grind up and turn into fish meal. @@Murray-wk3hz
I saw a video on a facility that grew insects using farm waste then fed the insects to fish farms
Superb idea. Better to have a landbased Aqua Set up.
Land based fish farms have my support
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?
This is the true meaning of a rich and abundant lifestyle.
fin rot is obvious in some of the underwater shots.
Your videos are always so much fun. This one was especially entertaining!
I have a solution. Raise ruminants on grass, which is plentiful, and rotate them in regenerative systems. Simple, but it takes work. You're welcome.
trout, salmon, and tuna taste good. we should make more fish farms
I can see this becoming a viable option in locations far from the coast. Providing a locally sourced fish, even if it costs more to raise, could be relatively viable considering the transportation fees for fish moving inland from the coasts.
Congratulations on one more leap forward in life
How do we buy fish from your farm? Who are your retailers?
Recirculating indoor aquaculture is not that new. I visited a couple of indoor fish farms here in the Midwest 24 years ago thinking that might be the business for me. It looked like a difficult life with constant worry of disease outbreak and low profit margins so I steered away.
I was just about to post about that. Shows how little the American public really knows about aquaculture when newspapers are heralding decades, old technology, as revolutionary.
@@doylethelovely2555 FT is a British publisher.
@@doylethelovely2555 I see the reporting as nothing but a marketing scheme promoting it, but most importantly if after all this time the industry still hasn't fully ironed out a perfected production process, that seems to the the biggest problem facing it.
yah but this is salmon not tilapia where the salmon is much easier to get sick
What about content od DHA and EPA in farmed fish?
As someone who has been innovating and doing recycled aquaculture since 1975, It is a good overview that highly exaggerates the detrimental aspects of ocean net pens and highly underestimates the problems of recycled aquaculture systems (RAS). Both have problems but both are much, much better than overfishing the oceans.
The fishmeal argument is total nonsense. It is all about economics. Fishmeal has been produced at a constant maximum sustainable yield (MSY) and constant tonnage per year worldwide for half a century when it was sold for chicken feed. I remember fishy-tasting chicken and turkeys that were horrible. Fish producers don't care if their product tastes like fish so when fish farming started, fish meal was used in fish diets as it was an excellent protein-quality feed material. We are now using a lot of soy meals and protein concentrates in fish diets and can make totally "vegan" diets for carnivorous fish species including salmon. The total aquaculture market for aquatic feeds exceeded the world supply of fish meal several decades ago and the price bumped up from the cheapest protein sources to the price range is high quality animal feed protein sources.
Aquaculture is much more efficient in using all these "feedstuffs" (fish meal, feather meal, soybean, distillers dry solids, etc.) and putting almost 3 times as much "meat on the plate" as pigs, chickens, cattle, etc. Fish don't require energy to stand up or keep warm and have a higher meat yield with less bone/tendon. That farmed salmon you eat requires 1.05 kg of feed to make 1 kg of live salmon in those net pens. That chicken takes 2 kg of feed/ kg of live wt. chicken. That pork takes about 3 kg of feed (corn/soy) to make a kg of live wt pit.
Note that the wild salmon takes about 10 kg of live fish/krill to make a kg of salmon. That salmon has to catch his dinner and the dinner doesn't want to be eaten alive and very painfully swim in digestive juices. Catching a feed pellet doesn't take much energy.
They are a well-meaning couple but don't understand the science, technology, and nature about which they opine.
Great comment but surly it takes more than 1.05 kg to make 1 kg of farm salmon ?
@@mikemckelvey7144 Yes, the food conversion efficiency (FCR) is 1.05 kg of dry wt feed in and 1 kg of live salmon out. These are typical FCR for salmon and other fish (note it is dry wt to live wt conversion so the thermodynamics is also correct). I was producing and selling 20 million fish/yr with an average FCR of 1:1 for ornamental and research fish so I believe the numbers. Experimental diets have gotten to less than 0.75 kg of feed/ kg of live fish and it looks like 0.9 may be commercially feasible.
Innovative methods like aquaponics and recirculating systems not only improve efficiency but also reduce environmental impact.
RAS is not an old technology. All the components of RAS are extremely mature technologies that have been well engineered and matured for decades already.
Putting them together to form RAS is also not new at all. It’s been around longer than most of the viewers have been alive. You can go out to most pet stores and buy a RAS off the shelf very at a very low cost for non-intensive and non-industrial scale use in your fish tank.
Yes, your fish tank operates off RAS. Just think how long the aquarium industry has been around?
RAS is just new mainly to the North American market. It’s been around for decades in Asia and Europe. The only barrier to mass adoption of RAS in is the initial capital cost and where the majority of aquaculture currently resides are developing parts of the world where capital investment is difficult to come by, especially when a substantial amount is required for each facility and most currently aquaculture facilities are small family owned operations.
GREAT VIDEO EDITING!!!!!
What is always the best answer. Mother nature says "more".
If they think it should be more human it would be neat to provide a long race way goings around the building and allow the fish in the tanks take turns using it. It would also make for more firm flesh.
What is the omega 3 content of these fish if they are not eating crustaceans and algae?
its not even half of a wild caught chinook salmon.....
my thoughts was the same. Also cod oil in store, that should contain high level of omega 3 - if cod is raisen indor or on a farm, is it the same issue?
@@MoreFootWork just feed it algae. that's where fish get their omega
Unfortunately I know a lot about these people so watching is for me sad and annoying, firstly the man who says he doesn’t impact the ocean, is wide of the mark, they trawl the oceans to get fish meal to feed the farmed fish, so that instead of the fish swimming out to see and coming back they burn diesel to catch food for them, not very environmental, the farmed fish often have eroded finds and very often running sores, sounds great doesn’t it?
In addition wild salmon are about the best thing a human can eat, farmed fish contain lots of fat, and before anyone says that wrong, I have seen that when you gut them! They are fed on a mix of artificial foods, they do not get sea lice because they are chemically treated. The sea lice are natural but the aches attract millions of them, when these fish are raised in sea cages on the coast. The fish farming industry has SYSTEMATICALLY destroyed wild se trout and salmon stocks in Scotland, and guess what they will do the same thing in Canada and the USA. They have large public relations departments to manufacture their idea of the truth, and yes the fish are just like battery chicks, they don’t navigate the oceans the king of fish swims around d a small tank with thousands of others, it is cruel and disgracefull.
Solid. Good job to the team
I haven't checked up on the status of it in a number of years but the FDA approved a gmo salmon (2015ish) and set no guidelines on the farming of them in open water pens. The fish were modified to grow at a much faster rate and mature to be larger than their natural counterparts, meaning that if they were to escape into the wild, they would feed much more heavily and apply much more pressure on the ecosystem than native species while also having clear genetic advantages to outcompete them. If you're looking for hubris look no further.
These fish are modified to be sterile to ensure that in the extreme case that they enter they environment, they wont pass down their genes and compete with native species in the long run. Also your claim of "no guidelines" is untrue. It is illegal to grow these fish outside of land based facilities. Aquabounty (the company that designed and grows these fish) is under strict regulation to ensure that they don't cause any harm to the environment by completely isolating them on land based farms.
@@ramyesteitieh3937 Are they modified to be sterile using a foolproof method? I've read that the way to make them sterile is by pressurizing the newly fertilized eggs, which might not be 100% even if it is close. There's also human error and human intervention to consider. You're right about my 'no guidelines' portion being untrue. It had been years since I'd thought about it, that's on me. However, what do we know about transport routes and methods? Is there live transport? Are routes near water? Are the sterilization methods 100% with no possibility for human error? How secure are the facilities where they're grown? Can someone unauthorized gain access? What is the hiring process of the company? Can the company say for certain that an employee will never do something that ends up causing massive damage either intentionally or otherwise? Is that a risk worth taking? If it is, why is it a risk worth taking? The same facilities could grow non-gmo salmon and still profit and be a successful business, so my opinion will always be that the added profit isn't worth risking the potential outcome listed in my original post.
@@jpjpJPJPG To an extent I agree with your points because the cost of letting these salmon out would be massive. After diving deeper in the matter, I agree that the method of sterilization isn't 100% full-proof. In fact, aquabounty's average sterilization rate was 99.7% with a range of 98.5% and 100% according to the FDA report. While this may seem threatening, several factors must be taken into consideration.
1. Shipping methods: aquabounty only ships these salmon live when they are still eggs. They also have several levels of secure transport and handling.
2. Odds of hatching: In the theoretical scenario that the eggs are released into the environment, their hatching conditions need to be perfect. Salmon eggs need a specific temperature, flow rate, depth, and water quality in order to hatch.
If this does occur, and some of the eggs hatched are diploid(non-sterile). The fish then have to survive the harsh environment that usually eliminates 65%-95% of all salmon hatchlings before they get to breed.
While all of this is extremely unlikely, the possibility is there and in the scenario that these GMO salmon are introduced into the environment, I think Aquabounty should probably cease to exist. Not only would a GMO escapee destroy the company, but it would severly damage the biotech industry. Public trust would go down the drain.
As for the other questions you asked such as hiring and malicious release, I don't have a clear answer and those are all very good questions to ask. Everything no matter how clear cut can go wrong if incompetence is allowed to fester. I think growing non-GMO salmon might be viable, but you'd have to compare the costs to traditional farming/harvesting techniques to accurately tell.
Overall, I do think that these salmon are a step in the somewhat right direction. They can be obviously improved upon (both in nutritional quality and in environmental safety) but given the growing population/demand combined with the decimation of wild salmon, we need sustainable alternatives like this to keep up. All technologies need to start somewhere before being improved upon.
I think feeding small prawn or shrimp would be better for the fish. It will add more nutrients to the fish. Small prawns and shrimp are easy to farm. It only needs water sunlight and alge and sea weed or grass.
Nice work
Deep well geothermal + Aqua Culture + Green House Hydroponics = Space Age Farming Tech
Brillliant sustainable ideas
Very interesting subject. The only thing I don't see is daylight for the fish; and they sure could do with that.
The fruits are in perfect condition
Can the Salmon be fed Asian Carp?
U need to make it into pellet first
they have the insects for that. they just need to feed them seaweed
I accumulated numerous joint inflamations when I started eating Farm Salmon on a regular basis then I got better right away when I stopped eating the farm salmon, I was in denial about the problems for a year then took a step to understand why quit and got better.
Sounds great, you and your kids can have mine, good luck
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.
How old are you? I think you did pretty well putting all those words together.
Basically an ad for on shore fish farming
20ton a week from that tiny farm? Astounding!
Brilliant video 👍 very interesting 🤔👍
Why don't we skip the salmon and eat the insects. Certainly environment friendly😂
Shrimp are called the cockroaches of the sea.
Lol
Oh, you protect fish from the ocean? It's really kind of a fish charity if you think about it. Thank you for your service.
As always, it's the scale and concentration that makes agriculture (and everything) polluting or toxic.
If cattle are held on pasture, a cow per acre, or pigs a few per acre, a few chickens, all integrated in a homestead like production, there would be no problem.
Can the world be fed on an agriculture system that operates on "homestead" style production? That worked up until the early 1900s, where most of the produce was consumed by the people who lived on the land. The surplus was then traded in nearby towns and cities.
www.loc.gov/classroom-materials/united-states-history-primary-source-timeline/rise-of-industrial-america-1876-1900/rural-life-in-late-19th-century/
"When did America's population become more urban than rural?
The 1920 census marked the first time in which over 50 percent of the U.S. population was defined as urban."
"The United States began as a largely rural nation, with most people living on farms or in small towns and villages. While the rural population continued to grow in the late 1800s, the urban population was growing much more rapidly. Still, a majority of Americans lived in rural areas in 1900."
"New machines for use in farming were invented in this period, but horses, oxen, and people still provided most of the power that operated the machinery. While farmers now produced cash crops (crops grown for sale), they were still remarkably self-sufficient, often making or trading for nearly everything required by their own families."
"Perhaps, it is that self-sufficiency that gives rural life a special place, even today, in the minds of Americans. As you read the documents in this section, try to infer what makes rural and small town life special. Do those qualities still exist in rural and small town America today?
But But insect life matter too!! :)
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. 😅
Estes temas são excelentes para reflectir!! Tendo em conta que o peixe que consumimos se encontra com químicos que fazem mal ao organismo humano, nomeadamente, o mercúrio e uma vez que os recursos piscatórias cada vez mais estrangulados, tal como o salmão nada contra a corrente nós também temos que nadar contra a corrente arranjando soluções para todos!! Se há grandes conquistas para o mal ....também há conquistas superiores contra o mal!! Valores, objectivos e inovações podem ser vitórias enormes!!
Self perpetuating is one of the key characteristic of bureaucrats and academics. The first thing the academics did was to hype their book. Of course the use of hyperbole is key in every presentation. No wonder young people think nothing is sustainable. Of course bureaucrats have their way, nothing is!
When I hear things like Canada has proposed “phasing out” open net fish farms by 2025, but has received push back-I think they ought to tell the corporations running those farms to shut down immediately then. To hell with them if they don’t want to cooperate with a gradual process specifically designed to protect their interests.
Sure, that sounds like a great idea. Shut down the most efficient farms that grow food for humans. What could go wrong?
@@gilbertnail7266 Because salmon from one of at least three sources is really the cornerstone of global nutrition? I think we’d manage. Alternatively, it could be phased out with public and financial support over the course of a few years. I hear they didn’t warm to that option.
@silverXnoise There is a lot more than just salmon. Offshore fish farming produced about 29 million metric tons, or 1/3 of all aquaculture production in 2016, the latest year of statistics available from the Food and Agriculture Organization, and it has only grown from there. I think it makes sense to put some limits on the types of fish so they aren't introducing invasive species into an area in the event of an accident, but putting a wholesale stop on offshore farming would be catastrophic to the global food supply.
I farm fish myself in the Philippines. We do it in earth ponds. We use the waste water to fertilize our gardens and get fresh water from the river adjacent to our property. All of this takes energy to run our pumps when we need to change water. With good management, we average production of about 7 kilograms of fish per square meter per month. Short of possibly farming insects, there is no other crop that can feed so many with so little space.
The RAS (Recirculating Aquaculture System) in the video takes far more energy and maintenance than our earth ponds, but they can run a higher stock density. Offshore farming in cages in a moving body of water is far more efficient and natural than our earth ponds or an RAS.
In areas away from water, an RAS can provide one of the most efficient sources of protein production while also conserving water. In areas close to the ocean, offshore farming is an excellent way to take pressure off the local ecosystem by farming a small area instead of potentially overfishing a large area.
There are complaints of pollution, but the currents distribute the nutrients from the fish excrement over a large area and support plant life while excess food is also distributed, helping support native fish.
The population of our planet is growing. We must continue to grow our ability to feed that population. Short of maybe switching our diet to bugs and worms, farming fish is the most efficient way to increase protein production and offshore aquaculture is the most efficient way to farm fish.
@@gilbertnail7266Adopt a vegetarian diet.
Very fascinating!
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.
How do they manage to stay profitable if they have a mortality rate of 20 to 25%?
Great video and wonderful information
I love the idea of land based fish farms, especially feeding them insects vs pellets based on ocean fish harvesting. I want to buy the land based salmon even if it costs a little more.
are the geodesic domes that move along the sea no longer an option or are they still too far out in the future?
ive alway thought if the fish oens can move and spread out their pollution, that would fix a lot of the issues.
I don't see the Chinese methods. I am worried because they are growing Florida fish, the golden Pompano, in the Pacific. That said. In the North they use a column where they try to reduce waist , by recreating an entire ecosystem. They got fish like a flat fish on top, then below, you got some sort of filter feeding shellfish to eat up the bacteria, seaweed, and I think sea cucumber on the bottom to eat up what waste drops into the floor. It maybe imperfect though.
One thing I would do if I was some of y'all nature is a marvelous tool if you ever learning but if you can pay attention if you learn the fall and rise of your leaves you can then redevelop your atmosphere or your oxygen that you put into and how you heat and chill inside of it and you might get a better raise
Is this food production or food use. How many kilograms of caught-fish are used as fish food to get a return of a kg of farmed fish. How many kg of soybean is used in the food. What other inputs are in the food.
01:18 Open water open net salmon farms is battery farming, they are as densely packed as land based, and the industry gets to tip all it's waste and chemicals straight in the water, and get free real estate to run their industry on. Land based is better for the environment but the product is garbage and what a shot old life for the fish.
Hi. I am from Zimbabwe doing my attachment for this industrial programme at Nyanga Trout Farm. I had a dream to work in technological advanced industries. How can I reach you
Vary nice product nice jobs ❤Canada's
i kinda wanna open a fish farm now
We need this technology on fist farming in mars,
Come on, also mention of negatives of land-based in terms of electricity use.
This video needs updated information about the farming practices and nutrition of commercial salmon farms.
I'm rather curious; those flies are not growing on fresh air, so what are you feeding those guys? Perhaps we'll end up without flies around our garbage bins in future. I live in Australia and eat a lot of salmon so this interests me. In the southern states the flies are unbearable here, and it would be so nice to find a use for them.
4:23 "I can't imagine any other food industry would accept that sort of mortality rate." Who cares? What is it to you? If your argument is against the environmental impact, then argue that. Don't try to make some contrived business case against it, when the business case is obviously working (hence the more farms).
Isn’t mortality in nature worse? 3 out of a million eggs make it back to spawn? We’ll fix the rivers and fish will come back. Also humans are weeds- too many.
She’s obviously arguing that it’s unacceptable from a perspective of the animal’s health and welfare as well the health of the people who will eat them.
@@Popopopopopopipopipipip wait til you know how many fish spawns get to grow up to adults in the wild
Wow! Produced Adult Salmon... Great
This video is a little confusing. I felt like they tried to make the story about "net ocean farming is bad" but the reasons given are that there is a possibility of non native species introduction if the net is breached.
Why can't they just "net ocean farm" with native species? The issue isn't the net, it's the non native fish. Also, the end of the story made it seem like an advertisement for that guys business.
Interesting
This couple....😅
Catherine Collins 😊 seems
lovingly provokeful ,
" can remember that" but
she cant remember herself 😊.
Save the Earth....
That guy ( land base ) doesn't
know the scientific phrases of
aquaculture,
all they know " They're
making money....
Good content # FT #
I have found it bizarre that many object to sea-based pens in the Pacific on the grounds that escaped farmed salmon might interbreed with the local population. That might not be a credible concern: Pacific salmon not only are not the same species - they are not the same genus. Past that, salmo salar escapees will lack the "homing instinct" which guides native species to spawn at a given time in a definite (and suicidal) place.
The possibility of interbreeding is not a full zero, but neither should it be a source of panic.
What food is best to feed to black soldier flies?
FT is able to produce something without criticizing China … hahaha astonishing 😂
I totally back up more sustainable aquaculture. Separately I find it hilarious that all of the footage of dead salmon were wild fish that naturally died after spawning. Not saying I don't believe the mortality statistics, just funny that they used wild red salmon carcasses for that example (4:21)
Agree with the content, but the times dead or diseased salmon were shown, it was spawned out wild Pacific Salmon. I’m sure pictures of diseased farmed salmon are much more disturbing
…did he say “the easiest way to keep the fish’s stress level low is to keep them in water”?
I only buy land fish farms. For fish like tilapia, the taste is noticeably apparent.
the solutions are quite simple. natural bio systems to do filtration, insects to produce the feed. not hard. maturing the industry takes time. lawmakers and animal rights movements should be incentivizing these directional changes, not standing in the way. salmon is not only eaten in fancy restaurants. and now seems there is a movement against lab grown meat. why? this could further decrease the dependence on farmed proteins. hard to believe the foolishness of some groups
Unfortunately it is always going to be more inefficient raising animals or fish then just eating plants directly.
I think algae, kelp and seaweed is the future seafood.
Just use Asian carp for fish feed
U have to make it become Pellet first
The people that buy this fish from the market or the ones that are causing the damage
No! They do not contain the essential fatty acids omega3 that we eat fish for.
Wild fish eat the algae that contains the correct nutrients we crave.
Or just eat grass fed organic beef
Is there any Red Salmon fish farms on the coast of Alaska and Canada?
I bought some canned wild pacific Red Salmon. The can says caught in the wild coastal waters of Alaska and Canada, but doesnt say wild caught!
Im asking are they farmed or wild Salmon?
Jenis ikan apa ini,mantap
0:50 do we need stem cell fish because of micro plastics?
She stated it was hubris to think that we can engineer our environment but I would bet my mortgage she thinks we can change global climate.
why you gotta make tasty salmon more expensiv?
I thought this is how it was farmed when I first heard of it.