Invasive Species: Ships Are Fighting Back!

[@Odin029]

A college friend of mine is involved with trying to clean out the invasive species in Lake Erie. He said that many of them are naturally salt water species that just like this video says, have no natural predators.. So I told him that humans are going to have to become their predators in the Great Lakes.

[@skrimper]

Dude I found freaking little crabs in lake Erie once. I guess someone was using them as bait and let them go or something. Not sure how long they lived but it was weird seeing them crawling on submerged rocks. Also stepped on a waterlogged corpse once as well, near Sandusky. Wild place, never went near it again after that 🤣

[@benmcreynolds8581]

It's crazy how one of the great lakes has a literal "death trap" in the connecting river that kills any fish that tries to go from the river into the lakes because they're trying keep out any of those invasive carp species that jump out of the water when startled.. they can't have those carp enter the great lakes. It would be a disaster.

[@seraphina985]

Eh the same argument could be said for the likes of the Asian Carp in the US rivers especially since they are actually edible too. Market the buggers as food and the commercial incentive to go out there and harvest them will put a check on their population. This is likely to be more effective than some environmental scheme trying to do it, if you can turn the invasive species into a resource that can be used somehow. That way you end up with a self sustaining concerted effort to go and harvest the resource which will likely work better in the long run. Besides which if one has to spend resources fixing a screwup might as well try to produce some value from what would otherwise be a loss of productivity.

[@jasonreed7522]

@@benmcreynolds8581 i first i thought you meant Niagra Falls but then i remembered that Lake Michigan (i think) has a connection to the Mississippi where the reversed the course of a river and they have a bunch of fish traps to keep undesirable species out of the lakes. And the most effective way of keeping most of these species in check is definitely to put a profit motive on killing them (like marketing aisan carp as a food source) as well as having the DEC equivalent do consistent government sponsored measures like selective poisons and fish killers/fences. Although i do remember laughing a little when they tried to purge the Eurasian Milfoil (invasive sea weed) from one of the lakes in our area bit they were doing nothing the the lake upstream of lake they were cleaning when both lakes had very problematic levels of the stuff. (It spreads with both "seeds" and just having bits of the "plant" sprout roots so all the debris & seeds from upstream were feeding the downstream population) Eventually they introduced an aquatic moth and the milfoil levels are becoming less of an issue. I assume the do other regular work like blankets to kill the weed beds as well as the "natural" solution of introducing the moths to eat it.

[@foty8679]

@@seraphina985 You cant really do that though. Yes, you'll have people going out and removing them for profit, but thats like some country tried dto erreadicate a snake species, which resulted in people breeding them so they can kill and sell them, which made the problem way worse.

[@michaellinehan710]

As always - love the non deck related videos; as a deck officer, I love seeing navigation videos but learning more about the speccy engineering stuff on ships is really enjoyable! Now I can start posing questions to the Engineers about our ballast water standards and see how much they about the new conventions!

[@Mondo762]

^^^ Retired engineer. US ships have been exchanging ballast water for over 20 years. We were doing that without installing any new equipment due to new regulations that came out back then. I can't tell you about the latest developments since I'm no longer sailing.

[@quillmaurer6563]

Despite the name, most of this video's channels are about technical functions of a ship rather than the navigational and seafaring crew aspects.

[@CasualNavigation]

It started with navigation, but over time it has become fun to cover all sorts of topics about ships. I did consider renaming a while ago, but I think it is nice to have a nod to where the channel started.

[@michaellinehan710]

@@CasualNavigation the navigation videos are great. I've recommended your Colregs channel to all the upcoming cadets I've interacted with. Taking the legalese from Colregs into layman English is critically important - I've seen many a junior officer in a simulator be able to quote Rule 15 to me verbatim and still try tell me that the sailing vessel on the port bow is the give way vessel while crossing! 🤣

[@Geniusinventor]

Can we all take a moment to appreciate the work this man is doing to educate us about ships. Man thank you very much!

[@captainhindsight8779]

Here in the UK we used to have a thriving red squirrel population but sadly the invasive grey squirrel killed most of them off. Crazy to think how much humans destroy the natural world.

[@MrGlenferd]

Funny. I've heard hear in Canada the red squirrels are the aggressive ones that chase the grey squirrels away.

[@iamgroot4080]

This channel is a gem

[@RealCadde]

But why haven't they simply considered treating ballast water as fuel? Each port has a number of tanks on shore for ballast water that is pumped in and out of ships as needed. Then ships can fill/empty said water as necessary in deep water as per D1. But only fill/empty at port once over shallower waters through lines going to storage tanks. Any necessity to empty water from the ports storage (beyond the need to fill ships with it) will of course necessitate treatment of the water. So ports will have to manage their storage levels. They don't have to worry about running out of water, they can just fill with shore water. But they have to consider the implications of getting rid of water as it is contaminated and needs treatment.

[@Godzilla20191]

I looked at the title and I was like hold up, wait a minute, something ain’t right

[@Skunkola]

Awesome information ty

[@xanderanderson6673]

Something about chemical tankers would be interesting

[@Lonezewolflonewolf]

I propose, use a filter/net to capture the animals, and use them for other needs.

[@infinitecanadian]

Seeing the thumbnail, I thought that what was costing the U.S.A. was the upkeep of the U.S.S. Constitution...

[@mowgli2071]

Closing the barn door after all the horses are out and are road kill is now "fighting back". "Ships are fighting back!" Only 35 years too late, but um, sure. Hooray. 👌

[@terryboyer1342]

Too late for the Great Lakes. Like closing the barn doors after the horses have left.

[@hazelhazelton1346]

Surely chlorination would corrode the ballast tanks like nothing else?

[@austinfu2102]

How about radiation during ballast intake and release? Or is there any regulations about carring radioactive items at sea?

[@grzegorzkapica7930]

I am wondering; why we do not have nuclear powered cargo ships? What would be the advantages and disadvantages of these? Leaving politics out of it, just the practical stuff.

[@Pleplerhep]

Add Radiation? :P

[@dominicbrunsmeier]

Just expose stage-2 water to a radiation of depleting material or x-ray tube, contamination in water won't reduce efficiency of this method.

[@clintcarpentier2424]

Copper tank liners.

[@tihspidtherekciltilc5469]

Wasn't wanting clean ballast water a major contributing factor to that car transport ship falling over in Georgia USA?

[@normalicious9734]

03:07 bi-ballast

[@saldownik]

I can think of one more successful invasive species

[@PatriotsfanGER]

Why do the flags on the ship fly backwards?

[@matura93]

Strong winds**?**

[@oatmealman1586]

Eh, not much surface area for wind to catch unlike the sails, and so the ambient wind resistance from the ship moving forward pushes them back.

[@loddude5706]

Because they're inside out, which is the skin side, which is always the right side.

[@PatriotsfanGER]

@@matura93 You mean the strong winds that are filling the sails from behind?

[@PatriotsfanGER]

@@oatmealman1586 ehm no, that is not how the wind works. Of the wind is so strong that it pushes a ship with large heavy sails forward, the tiny flags would go in the very same direction.

[@MeepChangeling]

Why not just stop caring about local ecosystems and intentionally build a single global ecosystem?

[@solaris_flare]

4th

[@chrnb]

What a huge waste of resources, just let any specie spread anywhere.

[@AflacMan13]

This video is misleading. Not all invasive species invade because of human interaction.

[@safetyinstructor]

Most do because of humans and those who do without tend to be less of an issue

[@Gebieter]

I have no connection to shipping outside of fandoms 😅, but your videos are really interesting. I basically binged your whole channel this week. And just as there is no video left, this one appears. 😂

[@CasualNavigation]

Thanks Mr. X. I'm glad you enjoyed the channel.

[@ethanjohnson9016]

@@CasualNavigation Mr X, I think you mean homer.

[@jeffreyhill1011]

@@CasualNavigation CasNav I randomly ended up here quite some time ago from a random suggested video because I watched Chief Makoi and that was that. Watched every video at least 2 times. My only complaint? You don't upload daily!

[@CasualNavigation]

@@jeffreyhill1011 I wish I could!

[@mynameisben123]

Wow I independently wrote a very similar comment. Goes to show how well this channel resonates with people.

[@eleftheriosmakris8095]

Dear @Casual Navigation, I spotted a small mistake at 4:39. It is not Hydrolysis but Electrolysis. The animation clearly shows water molecules breaking apart because electricity passes through them. This is called Electrolysis. Hydrolysis is totally different.

[@CasualNavigation]

Thanks Eleftherios. I meant to add a note about that bit - you are right!

[@markdavis8888]

The best method is to get ballast water from pretreated shore supply and pump out to post treatment shore tanks. Fill as you discharge cargo and pump out as you load cargo. Treatment is much easier done ashore and you can reuse ballast water many times. It is an international industry issue that the IMO is working on. Testing is also part of the solution.

[@quillmaurer6563]

An interesting point, that actually would make sense - especially as like you say the water could be re-used, transferred to another ship. But for that matter, you could similarly have ballast blocks be carried by empty ships from port to port, re-used on the next empty. Flaw with that is probably that cargo tends to move in one direction, and hence ballast (whether solid concrete blocks or water) would need to move in the other. If equal ballast were moving in each direction, then equal cargo would be as well, and cargo is more profitable. So we have to assume ballast is moving in one direction. As for whether processing ballast water (either pre- or post-journey) on land is better than on a ship, I'm not so sure it would really matter that much. Ships are almost like cities or factories, have all manner of onboard facilities capable of doing stuff like this. I'm not sure it being on the ship would be more expensive than having it on shore, and would allow more flexibility as they would be less reliant on shore infrastructure. The only advantage of it being on shore is that the space and weight of it wouldn't be on the ship - though I'm guessing what he described here isn't all that much size/weight relative to a ship - and a given factory would be able to serve numerous ships as they come through rather than being on each ship used only once per voyage. But I get the sense most of these methods run gradually over the course of the voyage rather than all at once, so it's smaller and active a larger portion of the time.

[@markdavis8888]

@@quillmaurer6563 All onboard ballast treatment plans require dumping ballast into the water at the dock. That means dumping salt water from the ocean at the dock which could be up a river or some other ecosystem that will be harmed just by the chemical composition of the water. Again, the best way to deal with ballast water is to not dump it in the water but to pump it into a shore side tank for treatment, testing and reuse. More docks have this service as time goes on.

[@cmdr1911]

We use fresh water for drilling and frack operations. Because we transfer so much water from many locations we have to track all sources and verify there aren't any zebra muscles. It is a pain in the ass and is just one invasive that we have to watch for in the Marcellus and Utica shale.

[@Tinil0]

Man, do you ever think about how you sort of stumbled on a very cool niche that was drastically underserved on KZbin? I feel like your channel may explode someday when you reach a critical mass of videos and even a single video gets the algorithm boost. Your audience is both people that know NOTHING about ships and navigation but find this new information they can't find elsewhere, and people actually whose job or hobby is on the sea or sea-adjacent who know some of this stuff but gets a kick out of you talking about it when few other channels do. I wish you the best man, you deserve it.

[@CasualNavigation]

Thanks Tinil0. I was just lucky that the topic I love has turned out to be popular on KZbin. Back when I started, I noticed there were plenty of other channels already, but none of them did the style that I wanted. They were either quite dry educational videos or factually inaccurate entertainment videos. This channel came about as a way of combining both, trying to make learning real topics a little more fun.

[@Tinil0]

@@CasualNavigation You knocked it out of the park, or an equivalent idiom that works as well for non-Americans. Your vision perfectly matches what your channel is and I hope it pays dividends into the future!

[@Monkey80llx]

I’m offended on behalf of the content maker as you used the word ‘man’ without knowing if this is acceptable to them. Ridiculous?? Yes. Obviously. That’s the world we live in. 😂😂😂

[@baileywright1656]

I really appreciated this one. Before getting into hydrography, I got my degree in environmental biology so this topic is near an dear to my heart. Thanks for sharing!

[@CasualNavigation]

Thanks Bailey. I've been wanting to do this one for years (since I did the original antifouling one). Its a fascinating topic!

[@faderabraham556]

Damn, you really braggin on youtube about a useless degree?

[@baileywright1656]

@@faderabraham556 I wouldn't say bragging, but sure if you insist :) It was an amazing experience and helped me get an awesome job which I love. To each their own I guess, hope you do well in your field of choice!

[@faderabraham556]

@@baileywright1656 its really obvious, but it isnt really a flex so i dont care at all. Just so obvious you try to ”sneak it into conversation” lol

[@Arcticp75]

@@baileywright1656 very well said! *applauds* Environmental biology is so cool, it's a shame we only have one life to live and learn!

[@callunas]

I'm a biologist & absolutely love all your videos, but it would be super cool to see more of these biology themed ones!

[@CasualNavigation]

Thanks Calluna. These biology themed ones are fun. My background is Physics, but its nice to explore the other sciences as well.

[@JiKimbo]

Love your videos. It's great learning about a completely new industry and all the challenges there are.

[@CasualNavigation]

Thanks JiKimbo

[@JiKimbo]

@@paddor new to me. I'm not a merchant sailor

[@jackking5567]

There's a type of giant woodlouse within Blyth Harbour (Northern England) that lives within the wood of the various jettys. It arrived via cargo ships. The woodlouse creates tunnels through the timber of jettys. I know about them because I used to work in the fishing fleet from that port. We had to be careful at night when mooring because those louse could give a nasty bite.

[@digit975]

Love this! You should also do a video on the NPDES vessel discharge permits ships have to adhere to. I’m in the US EPA’s NPDES program and these permits are really, really interesting and quite complicated, but serve a crucial role for dealing with things like treated sewage generated onboard. Even military vessels have to adhere to them, both in port and at sea.

[@CasualNavigation]

I hadn't heard of the NPDES acronym before, but I'll go and check it out.

[@nalomike6066]

What do nuclear subs doo?

[@classarank7youtubeherokeyb63]

Damn, makes you wonder if any deep ocean habitats have suffered similar fates. They're not easy to see so we might not even notice them getting destroyed.

[@Alucard-gt1zf]

None No surface organism will be able to survive in deep water pressure

[@classarank7youtubeherokeyb63]

@@Alucard-gt1zf But other deep ocean organisms can. I'm talking about the possibility that we took a deep ocean creature from one part of the earth and introduced it to a similar environment from somewhere else.

[@MrNuubstar]

You have to be very specilized to be able to survive deep oceans

[@austintillman8297]

That dying fish animation killed me 😂

[@thesilentone4024]

What about earthworms in america how many are invasive. I know the answer but billions dont.

[@rebelcommander7starwarsjur922]

1 it should require the removal of ALL SPECIES PROTECTION OF THE ENVIRONMENT SHOULD BE HELD TO SUCH STANDARDS IM SORRY BUT COMMON IS IT REALLY TO MUCH TO ASK FOR THAT I MEAN COMMON!!! Anyways also because even if you try your still going to removal all species your still going to have some left over on accident so you should BE REQUIRED TO ADD ALL POSSIBLE METHODS of eliminating the species that come out of the ballast water!

[@aareview8258]

Great video. If I can recommend something for another video. Can you please have it on the topic of navigation. Differences between now and 100 years ago. Similarities/benefits of each. Even how Indigenous, like of the island peoples navigation.

[@phantomkate6]

It really is a shame that zebra mussels are not recommended for human consumption. Can you imagine having such an abundance of cheap shellfish available? Nom nom nom.

[@awmperry]

It’s not just in ballast, of course; I work on shore in roro shipping, and one of my main tasks is helping to administer the results of our in-voyage searches for halyomorpha halys, the brown marmorated stink bug. Australia and New Zealand *really* don’t want any of those little buggers getting in, which means insects getting on board can lead to expensive delays, diversions and fumigation.

[@CasualNavigation]

I hadn't realised regular insects were an issue too, but that makes complete sense!

[@Mesozoic_mammal]

Can you make a video on how large the problem is with ships that discarde waste illegally in the ocean?

[@CasualNavigation]

I'm not sure about the illegal waste part, but I definitely want to cover different ship discharges.

[@infpail7232]

Anyone else a little concerned about the 63% and wondering why this is giving them flashbacks of time constants and natural logs? Great video by the way!

[@mariosebastiani3214]

I knew I wasn't alone...

[@graham1034]

From the thumbnail I thought the US was paying $500m/year to maintain some old boat from the American Revolution era. An invasive species makes way more sense.

[@potato1907]

well maybe

[@abhirajsingh4734]

Great topic!

[@SC-zf6dn]

Zebra mussels cleared the life out of the lake my cottage was on (Great Lake tributaries) its been about 15 years since the “peak” and it’s starting to come back

[@tetchuma]

I remember seeing a kids science show in the 80’s (like 3-2-1, Contact) and they showed how damaging the zebra muscle was to the environment and to ports.

[@kaosonic]

Love your videos and learning about things I wouldn’t have other wise thought about. Regarding ballast water contamination would it be possible to have a treated store of water at the ports that could be pumped in as the ships unloaded to avoid refitting ships to fit the new D2 standards? It wouldn’t be cheap to add such facilities to the ports but it would make it easier to have companies comply with environmental acts and standards. Once again, love the videos!

[@memashes]

Great video as always! I did have one qusetion, once a ship has been brought up to D2 standards do the Ballast Water Exchange/flow through requirements still apply? Or can they go back to discharging when/wherever they want to?

[@CasualNavigation]

The purpose of D2 to set physical limits to the number/size of organisms, so whether you achieve that through treatment / exchange / taking fresh water, it doesn't matter. You just have to ensure your discharge is in compliance.

[@6z0]

Amazingly well made video like usual.

[@CasualNavigation]

Thanks Stank!

[@COPKALA]

In Venice (and nearby) the local shellfish (few years ago) have been taken over.

[@fiskrond9212]

What about salination (as in Dead Sea level or higher)... making ballast water so salty nothing lives, pump the high-salt water through the whole system, re-hydrate/balance before discharge. I know that saltwater is heavier than freshwater.. and that's as far as my science goes... could/would it work?

[@MajesticDemonLord]

I've got an idea... We put a Chef (possibly French, possibly not) on the outflow pipe of the Ballast tank and we tell them that whatever comes out is Edible and a delicacy. Problem solved.

[@Dovietail]

Fabulous topic! Don't forget that Norway rats came WITHIN the ships. Before that it was the little brown rat in the United States. Norway rats kicked their furry little asses!

[@MrNicoJac]

Why don't we 'just' install tanks in ports? They can pump out the ship's ballast water and replace it with port water. The old ballast water can then go to a special salt water treatment plant, where everything in it can be killed. (ships need to be efficient when it comes to space and balance; a shore-based plant would have FAR fewer restrictions, resulting in smaller compromises - like, if you warm the salt water in a concrete/ceramic instead of metal tank, for instance, you don't have tank corrosion)

[@LiborTinka]

As for the corrossion issue - chlorination might also be an issue since chlorine is more potent oxidizer than oxygen itself - the corrosion product (in case of steel tanks) is not rust (iron oxides) but iron(II,III) chlorides which are water-soluble. Corrossion is a big issue in water electrolysis generally, especially around electrodes and the electrodes themselves (these are usually made from corrossion-resistant materials - like zinc, carbon, lead oxides, platinum etc.)

[@petervonfroster8i]

i can remember when i was a child, that some Asian Jellyfish got into the Baltic Sea, i just saied i saw some "new kind of Jellyfish" and everyone thought i wasnt serious, but funnily as far as i know they dont even change anything around them, what people were obviously afraid of when they found more and more of them.

[@michallacki9462]

Hi Casual Navigation! I love your videos. I'm a massive bookworm so I'm wondering if there are any books on some of the topics in your videos that you would recommend? Love the channel Thanks !

[@CasualNavigation]

Thanks Michal. Unfortunately I don't have any personal book recommendations as most of the topics come from official IMO publications. You could check those out, but they are all quite boring legal text books.

[@michallacki9462]

@@CasualNavigation Np. Thanks for the reply. I'll just stick to your channel then 😜

[@loganwirth4146]

Lol I saw an old colonial ship in the thumbnail and that it costs us 500mil a year and I'm like omg what little country are we still technically "influenceing" now that costs us that much militarily lol I guess I have a jaded mind but you know it's not unhurd of 😅 but yea this is an important problem as Mr krabs would say that darn dirty bildge water argh

[@Alex-pq2xy]

Perhaps you are familiar with a different red tide, but the red tide in the gulf of mexico and around the florida peninsula are not caused by an invasive species. The most common cause is Karina brevis and secondarily other Karina dinoflagellate species, and while it is common for K. brevis to wander outside of its usual range even as far as the carolinas, this is not considered an invasion. At most, it's a natural change in range, but the Karina species complex likely exists in the entire region. I'd love to see wherever you heard that - has K. brevis been introduced elsewhere in the world via ballast water?

[@TheGnewb]

Immigration bad? Great video. It looks like the zebra beings are migrating to new places. How I am supposed to feel about that is for a UN to decide, and tell me as or when I may want to be concerned about undocumented intermingling of beings that desire or are compelled to travel.

[@rysiii811]

just to compare: these standards for D2 by number of organisms are FAR higher than drinking water for pathogenic species

[@IOUaUsername]

What a dumb system. Why don't the loading ports just have a really big hose connection to supply ships with pre-treated water out of a tank? Then all the treatment equipment can be located on land where it's powered by the grid rather than a ship's generator and the treatment process doesn't have to be rushed to coincide with the time it takes to load the ship. You could even fill the ballast tanks with treated wastewater directly from the wastewater treatment plant, since it won't contain anything that's viable in a salt water environment (although if there's too much nitrate it could contribute to algae growth).

[@AbrahamSamma]

Very interesting. Had no idea about the amount of effort being put into reducing the chances of introducing invasive species. Thanks for this video.

[@cornbonzo7027]

And you Americans introduced zebra mussels to Canada too! Couldn’t have washed your boats nooo, grumble grumble

[@Roytulin]

I spent the first few minutes wondering why you are talking about marine ecology instead of ships, and then I got it. 😆

[@CasualNavigation]

Good point! Now I think of it, maybe I should have mentioned the ship link a little sooner.

[@panda4247]

The thing hitchhiking on a ship was literally the first thing in the video...

[@VodShod]

how about increasing or decreasing pressure in the tanks? I know at certain pressure it can crush micro organisms, and in very low pressure even the water will turn to gas and the cell walls would be ripped apart. I think these may be way less energy efficient, but I wanted to mention them since you didn't mention them.

[@trentkiewicz21]

What if human chose to go the other way and introduce every single specie to every single ecosystem and on purpose the system would even out and stabilise. So there wouldn't be any worry about cleaning the hull, changing the ballast water or even bringing a sandwich and few fruits through the airport

[@minchmeat]

Romanian here, didn’t know the Black Sea had those. Quite interesting

[@RoBert-ix6ev]

What about constantly changing the ballast water. From departure all the way along. So it is always washed thru with "local" water,with local species in it...

[@archangel6666]

Finding Nemo would’ve been a wayyy longer movie if he got caught in a cargo ships ballast tank lmaoo

[@koharumi1]

This video helped me in my exam. About how ships deal with invasive species in ballast water. Thank you for making this.

[@DavidSmith-rf5je]

I always hear about invasive species coming to the US. It's good to hear we have a gift to give to other areas of the world. Sad it's a squid though.

[@Dovietail]

I dislike all of this killing of organisms that were doing nothing but minding their own business when they were sucked into a ballast pump. Surely there is some way to keep them in their own water without killing them.

[@ph11p3540]

Why not use a medium intensity irradiation of the water as it's fed through a pipe. The radiation source is a sealed isotope cannister that has water running around it. The radiation does not kill but just sterilizes the life forms from reproducing. It's done in the agricultural industry and food processing industries so why not shipping? When the radiation source is no longer needed it still remains sealed in it's cannister when it's removed to be sent off to the radioisotope recycling center. Even city waste water is irradiated with no residual effects on the water itself at municipal sewage treatment treatment centers.

[@lenney872]

Why not use radiation to decontaminate ballast water? Much in the same way they do with irradiating fruit and other foods to kill microbes to avoid having to use chemicals.

[@jamesbizs]

Evolved over 1000’s years lol. Probably takes a bit longer than that

[@BatCaveOz]

"Competes for oxygen" - LOL It is a big problem when my cat and dog and gf and I are all in the same room. I guess one of them has to go.

[@Phil-D83]

Chinese and similar ships will make a mockery of this. Even the first world countries will have compliance issues.

[@dfunited1]

It almost feels like these large ships are big mechanical organisms. A big floating organism towing our goods around the world.

[@WanderTheNomad]

Video length, upload frequency, and quality of content are good enough for me to subscribe.

[@Junkyardnedreck]

Awe yes, the zebra mussel, we have those little bastards in the lake my boat is docked at here in Oklahoma…… have to make sure they don’t clog the water intake or your engine will over heat

[@cristitanase6130]

Smells fishy and expensive. Another way to increase the costs with little to zero actual ersult.

[@nickkuiper32]

I feel like this is a kind of organism racism. How dare those filters only let surtain microbes pass through!

[@Lucius_Chiaraviglio]

Correction: Production of chlorine from salt by electricity is electrolysis, not hydrolysis.

[@AltonNelson-kr1qu]

Why not put mesh filters over the opening of whatever pump hose thing to bring in water for the ballasts

[@NorroTaku]

I really like that the shipping industry is actually doing this aviation would never do anything that would hurt their bottom line

[@ninoski4043]

Unfortunately shipping industry is some of the most corrupt shit on earth, they contribute 60% of all waste in oceans and then tell you it's because you're using plastic straws. Seaspiracy is a great documentary on netflix. Edit.: fishing industry is the worst, not sure if there even is something called shipping industry

[@NorroTaku]

@@ninoski4043 oh shit I didn't know that also they are the ones that spill oil all the time

[@jamesrodgers3132]

@@ninoski4043 80% of waste plastic in the oceans comes from China and Africa.

[@nallid7357]

It's because the aviation industry isn't profitable, simply selling tickets or shipping goods for air travel doesn't cover what it takes to fly the airplane and have a reservation at hubs for your aircraft. That's why the air industry is more focused on fuel efficiency and how far a plane can fly and glide. It is far more affordable to put people and goods on ships than it is an airplane, however the speed of a plane much exceeds the need for affordability.

[@NorroTaku]

@@nallid7357 it's one of those industries that would not exist without state subsidies and constant bail out packages one should question if it's really worth keeping them around with all the trouble they cause maybe just buy them up and operate them state owned

[@Majestic_Pot]

How about not to drop ballast waters? What if ships had some kind of storage tanks for ballast waters in port to take or leave their water for another ships?

[@eugenio5774]

this is so interesting! I had never thought about this, but yeah, it makes sense. keep up the good work!

[@skoldmo762]

Also ships: Dumping oil in to the ocean despite regulations. Wont trust ships actually do this

[@Da__goat]

Why not have ships connect to ballast water pumps at dock to enable exchange and have the contaminated water be treated on land at the port?

[@DomyTheMad420]

i'm just sitting here wondering why adding a filter/screen at the intake isn't an option?

[@jarniwoop]

It's a bit like "Closing the barn door after the animals have gotten out" now .

[@behrensf84]

Why not fill the tanks in the harbor with treated wastewater? Chances are the wastewater is dumped it in the ocean anyway.

[@MusikCassette]

what about ozone? that should kill anything in the water and it looses its toxicity after a few hours.

[@NikosPer]

why dont you use ozon? it will be corrosive as well, but arent ballasts painted inside?

[@benmcreynolds8581]

Can they make ballast water filters to do it's best to keep animals out and only bring water in?