The High-Tech Future of Sustainable Fishing 

Fish mass reduced by 60% is such an insane number, its such an incredibly insane number...

4:12 "A report found that 21% of fish sold are not the species they are sold as." Yes, last time I bought fish I suspected this. I could smell something was fishy.

Really thought the glowing exit sign was a joke but wow that's cool

I am so grateful for SciShow and other educational RU-vid channels. I appreciate Stephen, and all the other hosts as well as every single staff member that is required to bring us this awesome content! I hope everyone has a great 2022 and.... don't forget to be awesome lol 🙂

A study must be done to find out which colour street light works best for species of drivers in different countries because red does not work universally.

There is a easy solution. Turn 80% of the sea in protected Areas where all extracting of natural resources is banned and the ban is enforced. Protected Areas are selected by habitat, spawning ground and travel routes of fishes.

Can you please talk more about the impact of mass fishing in the ocean and the impact of it on marine life?

Definitely eye rolled with the block chain idea

I thought the fish scales would function as the QR code, though that would only work if you buy whole fosh and if the scales are unique enough on each fish.

We could also just ban the nets that are causing all the problems and switch over to lines since you can target the fish by using different baits and sizes of the hooks. He also forgot to mention how those giant fishing nets destroy deep sea coral ecosystems.

One way to help the oceans, is to eat less fish

I gotta say, I love these videos and this channel. I love learning more about the world that I occupy and appreciate the way you give me information.

I like that most of comments are "just don't eat fish". When it's something that you don't care about the solution is really obvious. I actually found some "fish fingers" made from scorzonera (black salsify) that I like better than ones made from actual fish. They also make way less of a mess when you fry them.

Very disappointing to see SciShow talk about blockchain technology like this. Crypto evangelists love to talk about how blockchains are unhackable but ignore the fact that almost all fraud happens because an authorised user deliberately inputs false information into the system, i.e. a fishing boat lying about their catch. This is a problem that blockchains not only don't solve but also can't fix once it's been discovered, since the false data is immutably recorded on the ledger. Other than that, a great video.

Every Nation must work together to achieve real progress in the oceans. Scary🤯

5:03 Had you not mentioned this, I was about to comment it. Well done.

more efficiency means they will take out even more of target species, even if bycatch is reduced.

Sovereign indigenous people using their knowledge and language with science need to protect all ecologies on Earth. If you ever watch these things get that feeling that something's missing from your equation on how this needs to be deployed. It's that.

I always feel like we fish way too much. Like I wonder what percentage of fish at the supermarket gets tossed out. Cuz outside canned tuna and other uses for fish like pet food and such, I don't know many Americans at least that eat fish on a regular basis

SciShow should do a video on Advanced Fish Farming, Fish Nutrition Research and New Research on fish phenotypes. Would love to hear some info on those topics.

Thank you for this episode. The status of the ocean causes me personally a lot of stress. Not often do I hear good news for our oceans, but this gives me hope.

The word “sustainable” has become so green washed, corporatized. True ethical choices are almost made entirely individually on a small scale. The ocean is so vast- accountability is an almost impossible feat. But if we have any leverage against profit driven companies into playing nice, we should use it to prevent tragedy of the commons. I hear most pollution in the ocean is fishing related. Maybe we have some duty to clean up while we’re scooping fish into dry land 🌟 🎣

No pun intended, please do a video about String-net Liquids.

Good luck having everyone play by the rule. The fish black market is too big.

I was a bit underwhelmed with the innovations on this if im honest. Doesnt seem like anything is really going to change much. Sucks to be fishermen but i think zoning of critical areas and restrictions on catces is the way forward on this

Seed the oceans with iron. Doing this to the max can pull a sixth of our current emissions out of the atmosphere and turn it in to fish food.

I actually think that if we could implement something like that tracking where things start out and where they end up with a low energy block chain like system that the real world implications of that would add extreme monetary value. I do also think that there would be quite a fight to resist it form countries, organizations and peoples whom would rather their lives be less well known to others. First of all you would need to slowly set the idea into motion starting with the most valuable and important items down to the least important and valuable items though one might imagine that a scenario like that where the power issues have been negated and the divisions are continued onward might end in the whole planet being divided up. It would enable more circular thinking and creating systems that don't end with so many items being thrown in the trash let alone ones that go unused.

Two critiques from a citizen of Catawba Nation which has been sustainably fishing our River for millennia. 1. “Over the last X years we have gotten a little too good at catching fish” I know this is was a rhetorical argument but still, the very fact that this video was made means that “we” have gotten significantly worse at fishing. 2. At most these solutions can only address half the problem. Sustainable fishing requires (at least) another aspect which is protecting and growing the landscape. Love what you all do, but when considering the question of “sustainable XYZ” maybe first turn towards Traditional Ecological Knowledge and consider how indigenous/land-based communities have solved this problem over thousands of years. Hawu!

BRB gonna figure out how to program a school of fish to run doom

This is good info especially after that documentary on Netflix that talk about us over fishing

We need more videos about mushrooms

This is really cool

Wow those are some wild ideas

Damn, even fish are getting into the NFT game.

*By catch lights unintentionally attracts a giant squid.*

Obviously the best solution is to stop eating food entirely

People will give up plastic straws to save the fish but won't give up fish to save the fish.

I've read somewhere that a lot of fishing goes to feeding the super-rich. I want to find more statistics about who is actually buying all these fish, especially the illegally processed ones.

"person power" is certainly new to me

imagine in the future people selling fish as nfts

tuna are way way more expensive than like all other fish. I seriously doubt we're gonna put QR codes on cod and herring

We have to stop encouraging people to become fishermen/give people less of an incentive to be one. We should give more access/opportunities for people to become fishery entrepreneurs instead, with sustainable practices. I've seen too many videos about how we are overfishing in the ocean as well as the side effects of having fisheries where they pollute the hell out of the area they occupy. This should be one of the priorities of the government.

0:33 ". . . and everyone needs to play by the rules." *SNORTS* Good frikken luck with that. Seems pretty naiive to me.

I mean im designing an aquaponic system that grows fish in tubes so theres that. Each system would literally be mostly fish, the rest being barriers, some water (99% less water than a typical fish farm), sensors, pumps, and plants

I really hope fishing becomes more substanable

I love science and technology 💙

Two words: Cultured. Fish.

Still not eating fish until we clear up our act with plastic waste from fishing, and off-catch. But great to see more innovations are being made. Thanks

I could go for a filet-O-crypto-fish right about now.

fisherman "playing by the rules" pretty sure you have to throw that moral standard away when you first step on a boat. "On paper" it is easy! In reality like all other equations involving humans means it will never happen

Creo sería sonido, luz y vibracion del agua a futuro para eso, pero lo mejor sería clonacion con criaderos, sugerencia.

Question: How do scientists know that fish mass has been reduced to 60% since 1800, If only 5% of the ocean has been explored?

A rule of thumb: if someone say “blockchain”, they are wrong. Blockchain only solves the double spend problem. If you don’t have that problem or don’t know what it is, then blockchains are not for you.

>"everyone needs to play by the rules" CCP: Hi, yes, all fish have belonged to China since ancient times, *kthxbai*

so NFT might one day stand for "Nice Fish Trader" >.>

Stefan Chin is the Clark Kent version of Michael Aranda...

look as much as block chains promised de-centralization, it absolutely doesn't do that, at the end of the day there needs to be an organization or group of organizations managing the trasactions. i mean just look at crypto, majority of people don't actually have personal crypto wallet but instead have one hosted on a few select slightly sketchy websites. a block chain ledger would be no more effective than a normal database ledger. so of course i'm going to roll my damn eyes at it.

How to sustainably fish: you can’t. Lol

Whenever someone spouts out on overfishing or commercial fishing they just say it's bad. Not saying any solutions to help and when I bring up helpful solutions they still say it's bad then say fishing in general is bad.

I don't think Blockchains are inherently energy intensive. After all, they are simply a chain of blocks where the las block contains a cryptographic hash of the previous one, recursively. So, as long as the Blockchain ()or even just the hashes) is published openly, it's impossible to manipulate. The energy intensive part is part of the decentralized system, which isn't really an issue in the case, because the UN or whoever would easily host this Blockchain, which could be mirrored by anyone else, with guaranteed data integrity

Please. When editing audio clips together, leave at least 0.1 or 0.2 seconds between them. There are too many instances where sentences practically overlap. Let the monologue be more like real communication. It's easier to understand (and less annoying).

FISH NFT FISH NFT anything that can be done with block chain can be done more easilly and less energy intensive by other methods

I really hope countrys crack down on by catch. My buddy is halibut fisher they use long fishing line, but they know that the trawlers can catch 10s of thousand of pounds of halibut in one day most if it being by catch that dies and just gets thrown over board its a serious problem

Why not just ban fishing for a few years? I mean its a drastic measure but atleast it ill give them some time to repopulate again. Or would this not be a decent solution if not temporary?

we as in corporations?! there where lots of sustanable fishing methods since the dawn of history. overfishing is a deliberate feature of capitalism. its not about supply or demand, but the blind dumping of fish in land fills to control prices instead of sharing it around or feeding the poor. more fish are thrown away than consumed, you cant just ignore the real facts on the ground to sell new tech

Play by the rules. Well that's where your first problem is the second is sustainable consumerism.

Adding more bureaucratic systems makes fish more expensive, won’t that hurt small businesses?

'Rolls eyes'

Maybe instead of trying to invet techniques that might help us catch fish more sustainable, we should just not fish at all? People always try to keep their habits no matter what until it´s too late... Just so everyone can eat fish everyday

I very rarely eat any seafood.

Especially in times of pandemics and climate change, it’s really amazing how few people ever even try to go vegetarian (or vegan) for a day, let alone a week, or let alone trying it enough to be able to compare for themselves any noticeable benefits they might have. For something so important for our health, as well as for empathy and for the environment, it’s just amazing... Plant-based foods are the #RocketFuelOfFood. Three great reasons to #SwitchToVegan / Vegetarian: 1) Health 2) Empathy 3) Environment Reasons against: 1) Habit / tradition? 2) Apathy?

China: we don’t do that here

The best solution to all of this would be to, you know, stop eating the fish.

Watch seaspiracy (2021)

We really need a large stick wrapped in a small amount of foam so that it's not lethal. We can then use that to smack anyone who refers to brokechain as if it were meaningful in any way towards solving a problem. (Using "brokechain" instead of the term that brokechain cultists prefer because 1. it's a solution looking for a problem rather than actually useful technology, and 2. bots key off that word.) What brokechain does that they are wanting here is a procedurally generated non-sequential identifier and a database. Your fish is only going to be tagged with an ID, effectively just a large number, which would be generated by some procedure that ensures it's neither repeating nor sequential. Not being sequential is so that people can't just tag their fish with a number they expect the system to generate in the future. Brokechain does this by working out difficult math problems and assigning the resulting large number to a fish. Unfortunately for this plan, there is nothing stopping an illegal fishery from reading a blockchain's data and randomly assigning existing ID to their fish, which is why decentralization is NOT what you want in an accountability database. An accountability database needs the data to be accessible only via comparison. In a database this is typically done by hashing a value, encrypting it in a way that is not reversible. Then you apply the same hash to the value you want to check and make sure the result matches what you stored. The only current way to break a hash is to have access to the hashing algorithm and generate a large number of comparison samples, which is infeasible for large values. This is why they aren't considered to be particularly vulnerable to quantum computing, nor to most realistic attacks. But critically, the other half of breaking a hash is that you actually have to have the stored hash. When you hear of a breach where people's data is stolen from a hashed database, that usually involves a very large database (called Rainbow Tables) of pre-hashed common text values to compare against the stolen hash. The longer the text strings, the more difficult this becomes (which is why you should be using 16+ characters, not 8). Brokechain would record the value in a hash as well, but it's giving the hash and the hashing algorithm to everyone. That means nobody has to breach any system to start working against the hash. And importantly, they don't need a specific value out of the chain, they only need to break ANY number. With roughly 1 trillion individual fish being caught annually, they only need to guess and confirm via hash checking a few thousand per operation per year. While your fish brokechain is churning feverishly to calculate a specific value, they can spam numbers in the expected range far faster with far cheaper equipment until they stumble upon one that matches an existing hashed value. And because you're relying on brokechain to ensure uniqueness, you have to do this as part of your node generation. For each of the 1 trillion fish. If you don't rely on it for uniqueness, people can generate their own illegal fish IDs in the system using a stolen hash value from a random fishing regulatory body and you'd just have to rely on "trust me, bro" to tell if their registry is real or not within the system. That means even with the smaller impact brokechain designs being used now, the processing power required is going to be insane for something that can be broken by brute force. We have plenty of centralized systems that do this job FAR better in regulating things like banking transactions on global markets. Those operating illegally don't have access to the hashes outside of breaches, and when a breach occurs, the relevant data can be changed and rehashed to prevent ongoing exploitation. And that's without getting into future proofing. Right now, brokechain is scrambling to adopt "post-quantum cryptography" options out of fear that growing available of quantum computers will leave them vulnerable. This isn't the first time cryptographic technology has had to scramble because smart people with improved technology found a way around it, and it won't be the last. Being public and decentralized sounds good in the democratizing feel of those words, but in practice it means that you can't hide things away while you're trying to fix them and you can't replace them without everyone seeing what you did and having an inroad into breaking your newest protection. You can make things secure with open technology, and open source does some wonderful things with this. But storing your DATA openly is not the same. I described brokechain as a "solution looking for a problem" because fundamentally it does a thing that you don't actually want done when you actually think about it. It doesn't democratize things by decentralizing data processing and authority, it just mislabels "I did a thing with my expensive computer" as "authority". It doesn't protect data because the encryption is more vulnerable than proprietary data. And it doesn't ensure agreement over a transaction history, it merely mislabels "first" as if it means "true". All of the things it purports to do are no more true than a politician using stock phrases like "family values". Those of us who actually work in IT have been warning you for years that it's digital snake oil.

All of these systems are great at monitoring those who are most likely to follow the rules. The problem is that fishermen like those from China DON'T FOLLOW THE RULES, nor do they seem to care if they are monitored as they will just move to somewhere that monitoring doesn't exist. On top of all of this, the quantities that they take are so vast that fisheries will have completely collapsed by the time someone can prove what they are doing. If more of the resources that are going into monitoring the rule-followers were used to control the rule breakers and avoiders, we may still have fish around in the future. So, while all of this sounds really cool, it is really tantamount to pissing into the wind.

Engagement engagement engagement

Fishmonger is a real word? Who knew?

or we could reduce our consumption of fish

I miss the way Olivia pronounced 'fish' in her videos on here, don't know why I liked the way she said it, but I do have a very weird brain... :S

Block chain powered fish with unique identification? Your gonna start to see a can of tuna go for 80$

Fishing is *not* currently sustainable. Reducing bycatch by percentage points using flashing lights is not going to fix the fundamental issue. We need to stop eating fish before the underwater ecosystem is destroyed completely. Or are we just going to let corporations greenwash by bandying around terms like 'sustainable fishing' to make ourselves feel better?

Finally the block chain is being used for something productive

Glad I hate the smell of fish and never ate one in my life.

Odd, I saw studies recently that said that most of the biomass in the ocean is in lanternfish and other midwater fish. So when you say 60%....

"everybody needs to play by the rules", you try telling corporations that

That 30% for illegally caught fish is probably WAY higher.

The insane loopholes society must go through to make unsustainable practices remotely sustainable is absurd when the most obvious and easy solution is to simply stop eating fish.

Couldn't we just use proof of stake instead of proof of work with the fish blockchain? Then we wouldn't need to use so much computational power.

Unless you totally rely on it as a people, you just shouldn't eat fish caught in the wild.

Tunacoin to the moon

It's pretty sad that many humans still want to believe changing a bit of technology would help nature to recover. History tells us that this is just not going to happen. There is one extremely simple and free alternative to this that will definitely help: less fishing

C'mon sci show, we all know fishing can never be sustainable... especially in farmed situations. The use of anti-biotics also makes fisheries dangerous to humans due to anti-biotic resistance; much in the same way that land based farming does. The only way we help keep fish "stocks" high is by ensuring that fish aren't seen as "Stock" at all; the incentive to fish on such a large scale needs to be removed all together. Much like the war on drugs; the war on drugs can't win because the incentive is too high to cheat the system. Fishing illegally or over fishing to increase profits is another one of these examples.

But if we stop bycatching, does the ocean will rise faster? ;)

Fish coin to the moon!!!!🚀🚀🚀🚀🥳🥳🥳🥳

FISHY NFTTSSS

Everyone play by the rules.. right. 😀

Could this be remedied if everyone became vegetarian or vegan?

If all else fails, there's always the option of going vegan, or at least semi vegan (only partaking in meat/dairy/seafood on occasion and in modest amounts.) I and some of my family are already starting to do that as we switch over more and more to Beyond-Meat products. The other solution, though the technology still needs to catch up in order for it to be viable, is 3D printed meat.

I can see the target fish adapting to the lights, resulting in inefficient hauls