Are We Paying to Damage the Ocean?

Bottom trawling is one of the most common fishing methods in the world, but what if it costs society more than it earns in profit?
In this episode of How to Protect the Ocean, we look at a recent study on bottom trawling in Europe that found the total societal costs can be far higher than the profits generated, in some cases up to 90 times higher. Much of that hidden cost comes from carbon released when heavy fishing gear scrapes across the seafloor.
Industrial fishing is not just about what ends up on your plate. It is also about public subsidies, damaged habitats, lost carbon storage, bycatch, and whether taxpayers are helping fund practices that harm the ocean.
Ocean conservation depends on asking a harder question: are we measuring seafood by market price alone, or by its full cost to society?
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What if one of the most
common fishing methods costs
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more than it actually makes?
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That's what we're gonna talk about
on today's episode, because this is
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the How to Protect the Ocean podcast,
where we talk about the good, the
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bad, and the ugly in this situation
of what's happening in the ocean.
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wanna learn more about the ocean and
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hit that follow button to listen
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It's kind of interesting 'cause the
question for today is, are we funding
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an industry that is damaging the ocean
more than it actually benefits us?
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And I think sometimes you
look at the idea of fishing.
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A lot of times when you see
fishing, it's usually one or
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two people go out on a boat.
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They take fishing nets, or they'll take
a rod and reel, and they'll just kind of
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pull and reel, and they'll just kinda
put their fishing line in, and they take
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the fish out and they put it in a bucket.
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And they just continue to do that until
their bucket's full or the boat's full,
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and then they go in and they sell it, and
they can feed their families and so forth.
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But then when you start to think
about the industrial fishing fleet,
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that's where it gets dangerous and a
little kinda nasty and destructive.
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And when you start to see the damage
some of these tools that are used to
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fish can cause, and they're not used
in the proper way, or they're overused,
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they can really cause a lot of damage.
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And that's what we're gonna be
talking about today, 'cause we're
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gonna be talking about a recent study
that was covered on the site that I
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love the most this week, phys.org.
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It examined bottom trawling in Europe.
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And you've probably saw a lot about
bottom trawling in the movie Oceans, that
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was narrated by Sir David Attenborough,
and it was released last year.
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In advancement of the Nice Conference
of the Ocean Decade, they talked about
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this fishing method where heavy nets
are used to drag across the sea floor.
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And what it is, it's basically two
doors, a lot of the times with a
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chain that goes along the bottom, and
there's a net that goes behind that.
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And it's attached to a boat.
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And that boat releases the net,
and it goes underwater, and it
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usually drags along the bottom.
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They have some that are in
the water column, but mostly
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it's, drags along the bottom.
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And that net will go across,
and that chain and the doors
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will go across the ocean floor.
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And it'll just destroy
everything in its path.
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It'll go for a couple of kilometers,
and it'll pick up the net.
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It'll take the net and
just open it on the deck.
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And then the fishermen go through and they
say, "I wanna keep this fish. I'm not
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gonna keep this fish. I'm gonna throw it
overboard." And there's all this stuff.
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There's a lot of bycatch,
meaning there are fish that are
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not targeted that are caught.
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Other seafood like invertebrates
and stuff like that, if they're
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targeting fish that are not the
target species that are caught.
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There are certain net sizes, mesh sizes
that allow certain species to go through
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and not allow other species to go through.
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There are sea turtle exclusion
devices which allow sea turtles to
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get out of the nest so they don't
get stuck, they don't get caught.
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But you've seen a lot of videos where
you've seen great white sharks that
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are caught in the net, whale sharks
that are caught in the net, manta
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rays that are caught in the net, other
sharks that are caught that are not
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the target species that could die,
dolphins, some small whales, pilot
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whales and so forth that have been caught.
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The nets can be various lengths
and sizes that can catch a
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certain amount of species.
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Some of those, like, high seas
trawlers are massive, and their
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nets are just gigantic, and they
catch so much, so much seafood.
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And not all of it is the target species.
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Many of it is not the target species.
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And so we're gonna be talking
about that fishing method
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today, because it's important.
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Because a study found that while
the industry generates profit, the
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total societal cost is far higher.
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And in some cases, up to 90 times higher.
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We're gonna talk about what that
actually means, because a lot
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of times we're hearing trawlers,
"Well, the fish it brings in, it
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probably makes a profit out of it."
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But what else do we have to consider
when we are talking about trawling, when
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we're talking about this fishing method?
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Because most of that cost that is
90 times higher comes from carbon.
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Yes, carbon.
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We talked about carbon earlier this
week, about how there are certain
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environments that will store carbon
better than environments on land.
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And we know that these areas can
store, like, up to four to 10 times
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of the carbon that trees on land can.
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And so the sea floor that
stores large amounts of this
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carbon is really important.
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But of course, trawling disturbs that.
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It just kinda scrapes all those animals
out, and it destroys the bottom, like
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the first layer of that bottom part
of the ocean, that will release all
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of that carbon back into the system.
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And that's where we start to see where,
all, like, the mitigation and everything
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that's done and all these productive
habitats, 'cause, habitat really ends
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up protecting the ocean, protecting
the fish that are in the ocean, the
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crabs, the lobsters, the invertebrates.
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That habitat provides a home.
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It's like a home.
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So imagine a tornado comes across
and just destroys your home.
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And your home is gone.
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You gotta rebuild that home.
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But it's expensive to rebuild that
home, and not everybody's gonna
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be able to rebuild that home.
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Well, the same thing is happening in
the ocean, but even faster and more.
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And even in marine protected areas, like
the UK just until recently allowed, I
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believe it's still until recently, I
have to look up that, but they allowed
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trawling in their marine protected areas.
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Well, how can you protect fisheries
if you're gonna allow trawling
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in marine protected areas?
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That's the whole point a lotta times
of marine protected areas to do that,
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and we're not seeing that happen.
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So carbon gets released.
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Now, there's also another
layer, the public subsidies
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that support the industry.
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So, society ends up paying for it twice.
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So taxpayer dollars goes to subsidize
the industry so that these fishers and
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fishing industry can actually make money.
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Once through the funding, and again in
the environmental damage, we're looking
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at a lot of costs to society and it
outweighs the cost by 90 times, the cost
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of the profit that's made from these.
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So at what point do we allow these
subsidies to continue and the
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damage to the environment continue?
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You wanna support the local
community, but is trawling the way?
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And is trawling in certain areas only
the way, where we allow small areas
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where trawling can happen, and hopefully
restoration can happen within that area.
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Or it's not the same areas
all over and over again.
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Now, there are clear options.
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Like I said, we can restrict trawling in
certain areas, in the marine protected
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areas and other sensitive areas.
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But we should also reevaluate subsidies.
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Now, I've covered an episode or
two on subsidies, and the World
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Bank has this new subsidy document
that's out and policy that's out.
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And that's, when we can start to look at
reevaluating subsidies and taking action
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on it and aligning policies with real
costs, now we can really start to make
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a difference and really start to reduce
those extra costs on the environment.
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So when you get a fish next time,
you're getting seafood, and you know
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it's been caught by something that's
been trawled, you now know the cost.
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It's not just you're paying for the fish,
but the societal cost, the world cost of
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releasing all that carbon, destroying that
habitat, and subsidizing with your money.
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I'm not saying don't eat seafood, but
maybe eat seafood from another method.
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Cause right now the system is
misaligned, and we need to fix it.
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And until we fix it, it's always
gonna be misaligned, obviously.
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I think I just reaffirmed myself.
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But anyway, regardless, it's
something that's really important
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'cause it's not just overfishing.
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It's a system where we pay
to make the ocean worse.
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Think about that.
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We're actually hitting it 90 times worse
than what we left it just for fish.
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I'm not saying seafood altogether is bad.
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What I'm saying is trawling may not be the
way we're doing it, and the way we manage
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it right now is definitely not the way
to do it, and it's making the ocean worse.
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So I would love to hear
your comments on this.
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I would love to hear what you
have to say, because this is the
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beginning of a conversation.
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I started this podcast 11 years ago
to continue that conversation to
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happen, and just to introduce you to
all these different things that are
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happening in the ocean, and I would
love to hear your thoughts on trawling
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and what we should do about it.
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If you wanna hit me up on my socials,
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And of course, if you wanna give
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I wanna thank you so much for
joining me this week on these
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podcast episodes each and every day.
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It's so much fun to be able to do this.
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I'm looking forward to next week,
getting back into the regular theme.
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I'll let you know what that is on Monday.
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And, yeah, I can't wait to hear from
you, and I can't wait for you to hit that
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follow button, and share this episode with
somebody you think will benefit from it.
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So thank you so much for joining
me on today's episode of the How
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to Protect the Ocean podcast.
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I'm your host, Andrew Lewin.
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We'll talk to you next time.
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Have a great weekend,
and happy conservation.














