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Posted by speckx 15 hours ago

Bomb fishing is wreaking havoc on Indonesia's coral reefs(e360.yale.edu)
292 points | 150 comments
wraptile 14 hours ago|
I'm a scuba diver here in Thailand and you can still see blast fishing damage from decades ago that never fully recovered. It's truly as terrible as the article makes it out to be.

What is interesting is that both Indonesia and Thailand have strong and similar anti blast fishing laws since early 00s that charge 5+ years of prison time.

However, Thailand has been much more successful with taming blast fishing which is practically gone now and the story here is very insightful.

Some of it is due to Thailand's geography and high demand for marine tourism but the biggest push here was EU and US regulation that gave Thailand opportunity to shape up. In 2015 (same year when Thai anti blast laws were codified more strictly) US TIP (trafficking in persons) report down-graded Thailand to tier 3 mostly due to fishing slave workers while at the same time EU's IUU (illegal, unreported and unregulated fishing) issued a yellow card. All of which lead to the biggest fishery reform in Thai history which mostly eliminated blast fishing.

Since then Thailand is back to tier 2 of TIP and got lost the yellow card from EU's IUU. Indonesia never got tier 3 of TIP despite many arguing it should have and never got a card from IUU. Stories like this turn me into a globalization believer - I know it's not perfect but the system is kinda working?

throwaway2037 13 hours ago||
Thanks for sharing your first-hand account of diving in Thailand. I think they should aggressively pursue coral planting. They are several projects in Indonesia that have demonstrated excellent results. I volunteered for a day doing coral planting in Bali, Indonesia. As part of the dive, they take you to different parts of the coral reef as it recovers, showing you how it changes year after year. You can see the change with your own eyes.
wraptile 13 hours ago|||
I agree though we had very mid results here in the Gulf of Thailand while the Andaman Sea side has had more luck. The issue with Gulf of Thailand is that it's just so shallow with avg depth of only 50m and too calm making new coral growth very hard with existing techniques. There's some new promising research on alternative methods of raising coral larva in labs, but I'm not up to speed with that yet and it seems quite complex.
bbondo 13 hours ago||
Have any areas in GoT shown recovery from blasting and/or bleaching without human intervention? I have fond memories of Koh Tao circa 2009...
wraptile 12 hours ago||
Koh Tao is definitely not doing great compared to 2009 though there is some bounce back lately. I just moved from there to Koh Chang which despite poor visibility still has a lot of absolutely stunning untouched corals though unlike Koh Tao it takes an hour-long boat ride to get out there. Koh Phangan recently made news on massive natural recovery, so there's a lot of hope in the Gulf of Thailand still!
randoomed 9 hours ago||||
Mossy earth has been doing a (i think quite successful) restoration of an coral area damaged by bomb fishing in indonesia. Here is a 2 year recap of the program and the result: https://www.youtube.com/watch?v=u0bkMhhMHOw
throwaway2037 3 hours ago||
Hat tip. I'm pretty sure their sites are in Nusa Penida which is a short ferry ride from Bali, Indonesia. I did my dive (repair work) in Padangbai[1][2].

[1] https://www.google.com/maps/place/Livingseas+Coral+Restorati...

[2] https://www.reefrestorationbali.com/

freefolks 1 hour ago|||
Thailand doesn't have the conditions required for corals to thrive. The best, most beautiful coral come from Indonesia.
ColdStream 5 hours ago|||
I'm not surprised that even decades later they have not recovered. It is like old growth forests on the land, once you clear them it can take centuries to recover.
ghm2199 13 hours ago|||
Is it just a matter of incentives by the government in indonesia? Like is it that bomb fishing in indonesia is incentivized because of, for example, profit margins in fishing vs say tourism?

I know you mentioned Indonesia never got the yellow card it should have and that certainly creates less incentives for them to straighten their act. But I am trying to understand if the government is still largely to blame or not?

wraptile 13 hours ago|||
> But I am trying to understand if the government is still largely to blame or not?

all blast fishing is a failure of governance so I'd say yes but the fishing cultures here in SEA are so different from anywhere else in the world so it's very hard to govern without strong central body. Lots of cultural, religious, poverty and spiritual stuff mixed into all of that which really complicates things.

IMO Thailand has a much stronger centralized government and just better geography to make enforcement easier. It's mostly mainland with coastlines while Indonesia is mostly islands which are notoriously difficult to govern. So to answer your question, it's probably just that incentives in Thailand go much further due to all of these variables.

markdown 8 hours ago||
While it's hard to regulate fishing when your country is made up of endless islands, it's quite easy to regulate dynamite. So no, I don't think the number of islands is an excuse.

In Fiji, for example, no fisherman could get dynamite if they wanted it. The only way to get that is if you run a (very heavily regulated) mine, or a quarry, and you'd have to account for every blast.

cm2012 7 hours ago|||
The fishermen don't use regular dynamite. They make their own with easily available agricultural and mining chemicals, which are impossible to ban on the island without other worse effects.
lmz 7 hours ago|||
Does it have to be dynamite or are other, improvised explosives possible?
floam 4 hours ago||
The article mentioned fertilizer - that’s not straightforward to control and precisely account for.
markdown 8 hours ago|||
Indonesia gets a free pass for an ongoing genocide, so it's not surprising nobody cares about them breaking coral.
SEJeff 7 hours ago||
Care to explain for those of us unaware?
markdown 5 hours ago||
The island of New Guinea is one of the most biodiverse places on earth. It hosts roughly 7% of all global species, with 60% of them being endemic. Peopled by Melanesians, it's one of the most linguistically diverse places on earth, with over 1000 languages.

The east of the island became independent (from Australia) in 1975 and is now Papua New Guinea. Meanwhile, the western half was handed over to Indonesian control following the end of Dutch rule, a status formalized through the controversial, UN-backed 1969 "Act of Free Choice" in which a tiny, handpicked group of local leaders voted under military duress to integrate with Indonesia.

Indonesia has been conducting a decades-long genocide of the people of West Papua. It gets little press because it's an ethnic cleansing slow-burn. Slaughter the Papuan people, replace them with Javanese, then bulldoze their forests to grow palm oil.

For more, read the abstract (or the entire paper) here: https://researchers.westernsydney.edu.au/en/publications/for...

There's a timeline of the history of the "conflict" here: https://www.papuapartners.org/west-papua

https://www.abc.net.au/news/2020-12-01/west-papuan-separatis...

roster1198 6 minutes ago||
It's ignored because Indonesia annexed West Papua when it was a Soviet client. When it annexed East Timor later, it had switched to being a US client. So this second annexation received a great deal of bad press - including, critically, the Australian far left, whose campaign led to Australia pressuring Indonesia to let it intervene militarily in 1999.
no_carrier 5 hours ago|||
Thais will quite commonly bomb fish their neighbour's dam as often as they feel like it. I'm not convinced that they're also not doing it in the ocean, too. It may be happening away from the main diving sites.
aaron695 5 hours ago||
[dead]
wlaw15 14 hours ago||
Sometimes you learn of an unintended consequence of seemingly good idea wreaking havoc on an ecosystem. I would not put fishing with "plastic bottles filled with explosives" into that category.
cute_boi 14 hours ago|
[flagged]
3minus1 13 hours ago|||
According to the article these fish are sold locally, with obvious damage from the blasts to their internal organs. So it's not the reason fish is cheap in Western countries. AFAIK cheap fish mostly comes from farms.
throwaway2037 14 hours ago||||

    > Otherwise how would people have cheap fish?
I will offer a counterpoint. Japan has extensive fishing within its territorial waters (economic exclusive zone). It has some of the most productive fishing in the world, in part, thanks to the Kuroshio current. Japan does not need to use dynamite fishing, and yet, raw fish prices are incredibly cheap in Japan for a huge variety of fish. Their prices are much cheaper than other highly industrialised nations.
kubb 14 hours ago||||
Cast a net or eat tempeh. It being convenient doesn’t mean it’s the only way to do it.
aziaziazi 13 hours ago|||
+1 for tempeh, incredible tasty and healthy food. Anyone should try it at least once in their lifetime.
cute_boi 11 hours ago||||
Tempeh is good, and I fully support it.
throwaway2037 14 hours ago||||
Why is this downvoted? It is a reasonable comment.
Johnny_Bonk 14 hours ago|||
Casting a net is actually one of the less sustainable ways to fish.
throwaway2037 13 hours ago|||
I am starting to see this lazy response pattern on HN. Someone makes a reasonable comment, then a responder pops-up like a whack-a-mole to say little more than: "That's not true." or "That's still bad." ... while offering no evidence to their claim, nor any reasonable alternative. I think that it adds so little to the conversation. And specific to the comment, they even used the Holy Grail of annoying Internet argument tendencies: "actually".
HighGoldstein 12 hours ago||
"You say we should improve society yet participate in it, curious"
throwaway2037 12 hours ago||
Are you referencing this meme?

https://i.kym-cdn.com/photos/images/original/001/259/257/342...

https://knowyourmeme.com/memes/we-should-improve-society-som...

skinfaxi 13 hours ago||||
Compared to throwing bombs in the water?
red-iron-pine 13 hours ago||||
depends on how big the net is. some of those huge trawllers do lots and lots of damage.

tempeh can be crazy toxic if spoilt. there is coconut tempeh which is officially banned due to potential for toxic contamination, but which is still super popular -- and routinely kills a couple of people every year.

fc417fc802 11 hours ago||
I'm curious. Do you mean spoiled during the production process (ie was inedible to begin with) or spoiled in storage (ie was edible at time of purchase)?
dkbrk 8 hours ago|||
Either can happen. The root cause is growth of Burkholderia gladioli [0] on certain foods rich in specific fatty acids, which include coconut and corn. This can happen during the fermentation process of fermented coconut and corn products if there's Burkholderia gladioli contamination and the pH, salinity and temperature aren't controlled to prevent its growth, but it is also possible for Burkholderia gladioli to contaminate food containing coconut or corn after it has been produced and produce bongkrek acid while it is being stored (e.g. [1], which is where I first learned about this).

Bongkrek acid [2] is odorless, tasteless and is not destroyed by cooking. Food can show no signs of spoilage and contain a lethal dose, though fermented products that were contaminated during production might show differences in color, texture and smell if the Burkholderi out-competed the normal fermentation process.

[0]: https://en.wikipedia.org/wiki/Burkholderia_gladioli

[1]: https://youtu.be/yXnSYfv6bCA?si=7DTW4J0ahMoWUuLd

[2]: https://en.wikipedia.org/wiki/Bongkrek_acid

[3]: https://en.wikipedia.org/wiki/Tempeh#Tempe_bongkr%C3%A8k

nomel 9 hours ago|||
Since fermentation is involved, I don't think there's a clear line between the two.
tclancy 14 hours ago||||
Think you might be casting too wide a net there. It certainly can be.
lightedman 13 hours ago|||
Which sort of net casting? I grew up with a hand-case 8ft diameter net. I'll guarantee you that's a billion times more sustainable than a trawler.
krunck 13 hours ago||||
> Otherwise how would people have cheap fish?

Fish farming?

doublepg23 13 hours ago|||
> While fishers predominantly use the method to catch fish for sale at local markets
tescreal 7 hours ago||
How did we get to loonie tunes levels of absurdity? I understand dragnet fishing is destructive, but who first decided that dynamite was a good fishing method?
ColdStream 6 hours ago|
It is easy thus people will do it. Convenience is the single most potent drug we have ever invented.

Man kind - If we can, we will.

mc3301 4 hours ago||
Or avoiding starving.
ColdStream 3 hours ago||
True, in avoiding starving today, we take short cuts unaware they are bring more starving to tomorrow.
pajko 13 hours ago||
Had experienced grenade fishing in person on the Vjosa in Albania. Was kayaking when a 20-30(-40?) meters high water column appeared about 300 meters in front of me, accompanied by a big bang. Not cool.
pajko 13 hours ago|
Same place, ~200 meters away from my tent: https://i.postimg.cc/5NN9w92m/IMG-20220802-173453-MP.jpg
willmeyers 13 hours ago||
This is the repo if people are interesting in this work: https://github.com/ben-williams-ai/Bomb-Fishing
pingou 14 hours ago||
"With a bomb dropped once every 62 minutes, the equivalent of three football fields of reef are destroyed each year, according to Williams."

That doesn't sound right.

ryandrake 14 hours ago||
I love the American measurement units. How many bald eagles of explosives are needed to destroy three football fields worth of reef?
superbatfish 11 hours ago|||
The quote you're referring to came from the study's lead author, a Brit. Presumably he was referring to soccer (which everyone else calls "football"). Furthermore, a soccer field and an American football field are reasonably close in area, so it gets the point across in any case.

However, I will now refer to explosives exclusively in units of Bald Eagles when referring to their mass, and "star spangles" when referring to their energy output.

toast0 8 hours ago||
Don't Brits usually call it a football pitch?
kulahan 7 hours ago||
Brits actually originally called it soccer. They changed to football at some point a while back. Maybe he's doing a super-throwback?
BoxOfRain 13 hours ago||||
This isn't a uniquely American thing to be fair, in the UK it's not unusual to discuss area in terms of football pitches or for very large areas, Wales.
shevy-java 12 hours ago||
The rest of the world has moved on to the metric system. Even NASA did.

UK should not hold us back with their shenanigans.

BoxOfRain 10 hours ago|||
To be fair, who actually has a mental model of what 20,779 square kilometres or 8,023 square miles (the area of Wales expressed as a number) actually looks like? Doesn't matter if you're using imperial or metric, it's not very intuitive beyond the human scale.

If you're trying to communicate 'this much rainforest disappeared' or 'look how large this landmass-sized Antarctic iceberg is' to a wide audience a well-known area is a reasonable way to do it. In Britain basically everyone knows roughly what the size of Wales is relative to the other countries of the UK, even if they don't know its exact size.

bamboozled 8 hours ago||
What is good about metric is that once you have a good feel for different lengths of mm, cm,meters and kilometres you don’t need to worry about things like “10 Super Bowl stadiums”. You can easily extrapolate what 27km2 means, it doesn’t have to “look like” anything.
bigstrat2003 5 hours ago||
That really isn't true. You in particular may be good at such extrapolation, but people as a rule are not. They need a concrete example to relate back to.
AngryData 8 hours ago||||
Even NASA uses AUs and degrees which are both not metric.
lenerdenator 11 hours ago|||
The UK is arguably worse than the US in this regard. The US has mainly stayed with a system that sticks to one measurement across use cases. If I burn fuel at a rate of x miles per y gallons, I purchase it at the pump in gallons. If Tommy Atkins burns fuel at a rate of x miles per y gallon, he purchases it at the pump in liters; there's an extra step for conversion.
throwaway2037 13 hours ago||||
What a low value comment. In this case, a European football (soccer) field/pitch is reasonably close in size to an American football field. If the article had used square feet or acres, your comment might be more relevant. Google tells me that FIFA football pitch size is 105 meters long by 68 meters wide (7140 sq m). American football field size is 110 meters long by 53 meters wide (5830 sq m).
red-iron-pine 12 hours ago|||
four to five Big Mac's worth.

advanced question for the college types: how many if you supersize it?

thoughtbefore 7 hours ago||
Which supersize, with shrinkflation applied or illegal in NY?
cannonpr 14 hours ago|||
You’d be surprised how vulnerable aquatic organisms are, and how far energy travels in water after an explosion…
franciscop 14 hours ago|||
I think the point is the opposite, I also expected a lot more damage from a bomb every hour
AlwaysRock 14 hours ago||
I'd suspect that the goal isn't to destroy coral reefs and the damage is "accidental." And/or the reefs are already largely fucked, so additional damage is "minimal."
throwaway2037 13 hours ago||
To be clear, coral reefs are essentially collectors/attractors/homes for a huge number of fish species. If you go away from a coral reef (even 50 meters), there is large drop-off in the amount of fish in the water column -- almost none. They are absolutely bomb fishing within coral reefs because there are lots of fish.
kulahan 6 hours ago||
Yeah, but the reefs aren't the goal. They're probably mostly not blowing up reef, but occasionally do it it - hence why so many bombs clears so little reef. If it was massively reducing reef coverage, you'd expect to see the method die off once too much reef is gone.

Fishers, I would guess, are aware of fish wanting to be near reefs.

chinathrow 14 hours ago|||
I would assume the area was larger than reported. I mean that's 24*365 bombs per year.
deadbunny 14 hours ago||
I'd assume the deployment isn't always over reefs?
boringg 14 hours ago||
File this under the category "people are f-bomb-ing idiots".

I wouldn't be surprised if social media was spreading this technique as successful way to fish.

dmkolobov 14 hours ago||
My first encounter with the concept of bomb fishing was the Shapoklyak episode of the soviet cartoon Cheburashka, produced in the 70s. It's been around.
alwa 12 hours ago|||
Mine came much later, in the Triplets of Belleville (2003). In case it brings a nostalgic smile to anyone else’s face, too:

https://m.youtube.com/watch?v=N0VrHQ-cHUA&

mc32 14 hours ago|||
Yeah it’s been around for a while but it’s been at the individual level not at the commercial scale which makes the practice way worse.
dghlsakjg 12 hours ago||
It’s been commercial in SE Asia for decades. Personally seen it in Thailand and Indo 20+ years ago.
orbital-decay 12 hours ago|||
Blast fishing has been practiced since at least early 20th century. Essentially everyone knows about it and understands how destructive it is, no social media required. Some people just don't care.
boringg 12 hours ago||
Prevalence and availability is changing. Old technique better distribution on how to.
orbital-decay 11 hours ago||
The thought of the fishermen watching tiktok on how to poach is ludicrous. They're perfectly aware about this method and its high illegality. It might be new to some HN readers who aren't going to do this anyway, though.

>how to

Dynamite goes into the water, fish goes belly up, 90% of the catch is lost. It's not rocket science.

red-iron-pine 12 hours ago|||
idiots? this is clever af. maximum fish for limited effort.

the coral is a tragedy of the commons things; it's a sweet deal for lazy fisherman.

dghlsakjg 12 hours ago|||
It IS a successful way to fish if you care about feeding your kids tonight, and not in 10 years.

Fishermen were doing this in Indonesia decades ago. Pretty well known technique.

adjejmxbdjdn 11 hours ago||
We need to stop our obsession with exploiting animals.

It’s leading us to do insane things damaging our own health and the environment, nevermind how much suffering it’s causing the actual sentient beings we’re using.

tomasphan 10 hours ago|
This is not an obsession with hurting animals. It’s survival and earning a living for these Indonesian fishermen.

To incentivize them to stop you have to give them better options. In this case, teach a man to not fish with explosives and you’ll feed him for the rest of his life.

xp84 8 hours ago||
> It’s survival and earning a living for these Indonesian fishermen.

Why make excuses for greedy jackasses? Their ancestors didn't invent this 5,000 years ago and it's the "oNlY wAy they can survive." They fished without bombs once. Some guy realized this depraved method works, so now lazy people choose to do it so they can get money faster than the people fishing legitimately can. That's why it's illegal.

tomasphan 7 minutes ago||
We’re just speculating on the economics here so let’s agree to say making it illegal is not fixing the problem.
auszeph 2 hours ago||
There was a short doco on this in a recent Australian show if anyone is interested

https://youtu.be/EXqPHM7Uauk?t=0&si=-W6-z4L8UEo4KtgS

doodlebugging 9 hours ago|
I read the article looking for any mention of how they classified the recorded events as bomb blasts versus impulses from seismic surveying for oil and gas. That region has been very active since at least 2015 with seismic surveys and in 2023, the period covered by the article there were several crews operating.

I know that seismic survey acquisition should be easily identifiable because those shots occur at precise intervals during the survey and continue all day long with no breaks unless there is an equipment failure or other reason to shut down. A 10 second interval would be one common example.

The damages from activities like this are terrible. Using explosives as a seismic sources was banned in the late 1970's I think due to harms done to marine mammals and organisms and the environment in general. Since then, airguns firing compressed air have been the dominant marine seismic source. Depending on the bandwidth of the bubble created and the volume of the airgun array they can also be extremely destructive to marine mammals like whales and porpoises so crews employ biologists as whale watchers in those areas where activity can be expected so that the effects on whales can be minimized.

It is still a serious issue in offshore exploration though.

Bomb fishing is something I would expect to hear about from some redneck coon-ass from Lousyana. I guess that people everywhere figured out how to stun fish to improve catch quantities and some use that as the primary method now. Maybe if deeper waters weren't fished out they could just go further offshore. Once you have foreign fleets dragging up everything in their paths then the only fish left are around the reefs.

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