The Tiny Fish Whales Cannot Live Without

Forage fish are some of the most important animals in the ocean, but most people barely know they exist. Sardines, anchovies, herring, capelin, and other small schooling fish support whales, seabirds, salmon, tuna, and commercial fisheries.
In this episode of How to Protect the Ocean, Andrew Lewin explains why forage fish are often overlooked, why their abundance matters more than people realize, and how protecting the ocean means protecting food webs, not just the famous species we love.
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The future of whales, seabirds,
salmon, and even commercial
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fisheries may depend on fish most
people never even think about.
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This is the How to Protect the Ocean
podcast, your weekly ocean news update.
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If you care about staying informed
on the ocean every weekday, hit
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that follow button right now so
you don't miss tomorrow's story.
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Today, we are talking about a strange
problem in ocean conservation.
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Why do we pay so little attention
to some of the most important
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fish in marine ecosystems?
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Because forage fish are essential.
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We've talked about it all week.
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Scientists know it, fisheries
managers know it, conservation
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groups know it, but most people
have never even heard of the term.
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And honestly, that may
be part of the problem.
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Ocean conservation often focuses
on large charismatic animals.
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We have whales, we have sharks,
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sea turtles, dolphins,
and that makes sense.
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People emotionally
connect to those species.
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They inspire documentaries,
campaigns, and donations.
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But ecosystems are not
built around popularity.
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They are built around relationships,
and forage fish sit near the center
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of many of those relationships.
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These small fish support predators
across entire ecosystems.
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But because they are small, probably
common-looking, and often commercially
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processed out of sight, they become
almost invisible to the public.
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That invisibility creates a conservation
challenge because public pressure
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often influences political priorities.
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And it is much harder to build urgency
around species people don't even
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recognize, especially when those
species are caught in massive industrial
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volumes far from public attention.
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In many ways, forage fish
suffer from a branding problem.
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But ecologically, they
are incredibly important.
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This matters because conservation
success often depends on protecting
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systems, not just individual species.
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You can protect whales all you want,
but if whales cannot find enough
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food, recovery becomes harder.
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You can create marine protected
areas, but if food webs become
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unstable, ecosystems still struggle.
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Forage fish force us to think
differently about conservation.
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They remind us that ecosystems depend
on abundance, not just survival.
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This is one reason scientists increasingly
support ecosystem-based management.
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The goal is not simply
preventing collapse.
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The goal is maintaining healthy,
functioning ecosystems, and that
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requires enough prey species in
the water to support predators.
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There is a public awareness issue here,
and a lot of people do not realize
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how interconnected ocean systems are.
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They may not understand that salmon,
seabirds, whales, and tuna often
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compete for the same prey resources,
and that industrial fishing can
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affect ecosystems in indirect ways.
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Once people understand those
connections, that conversation changes.
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Suddenly, forage fish
are no longer bait fish.
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They become ecosystem infrastructure,
and that framing actually matters.
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We're talking about communication here.
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And a lot of the times when we
talk about communication, we
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know that it's really important.
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And one of the things that I covered
last week was we know communication is
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important, but I had conversations over
the week where it's like communication
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isn't funded enough or at a level where
we can actually get communicators or
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marine influencers, science influencers,
and science communicators to say,
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" Hey, let's talk about forage fish.
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Let's talk about the real important
part of the ocean that will provide
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its stability, especially in warming
times like we have with climate change,
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or in times where fishing pressure
is at probably an all-time high, and
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we're starting to realize how important
those forage fish are." So, if you are
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interested in finding out more of how
you can communicate better and amplify
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your message better, whether it be about
forage fish or anything that's important
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to you and your organization, or your
company, or you're part of a larger
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academic project, or just in your academic
lab, hit me up at piscesoceans.ca.
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We have a tool there that I'll link
in the show notes where you can go
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on the website and you can figure
out where you need help the most.
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We're a consulting firm of scientists,
ocean communicators, and project
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managers that can help you with your
project and amplify your message.
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We understand the science.
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We understand how important science
communication is for you and
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your organization, your company,
and your project, and we want
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to make sure that it succeeds.
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So if you want to know more, go
to the show notes, click on that
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link, or go to piscesoceans.ca.
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The good news about all of this
is that awareness around forage
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fish conservation is growing.
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Researchers are improving
ecosystem science, which is great.
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Conservation groups are increasingly
pushing for precautionary
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management, which is also great.
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And more policymakers are starting
to recognize that ecosystem health
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requires protecting food web stability.
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But there are still some major challenges.
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Industrial demand for fish
meal and fish oil remains high.
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Climate change is
increasing ecosystem stress.
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And fisheries management
decisions are often involve
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political and economic trade-offs.
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So this issue is not going away.
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In fact, it may become one of the more
defining ocean conservation debates of
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the next decade because ultimately, this
conversation is bigger than forage fish.
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It is really about how humans
think about conservation and
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how humans think about the ocean.
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Do we only protect species that
people emotionally connect with?
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Or do we protect the systems that
make entire ecosystems possible?
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That is the much bigger question.
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And honestly, the one the ocean
urgently needs us to answer.
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One of the most memorable conversations
I had is when people were saying,
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"Hey, look, sometimes it's great to be
like, 'Hey, we're gonna protect sharks,
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we're gonna protect whales, we're
gonna protect sea turtles, we're gonna
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protect polar bears,' because those are
iconic species, the ones we emotionally
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connect with," like I mentioned earlier.
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But they're not necessarily the
ones that we need to focus on.
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Yes, we need to focus on it and a
lot of times they are in trouble.
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Sea turtles, most of them
are critically endangered.
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We have polar bears who
are critically endangered.
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North Atlantic right whale
is critically endangered.
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We have a lot of animals
that are in trouble.
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But a lot of the times it's not just
because of the individual species, and
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managing the individual species is not
gonna make things better right away.
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But managing the ecosystem as a whole
is going to make things better because
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you're gonna make sure that the foundation
is there for that whale, that sea
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turtle, that shark, that polar bear.
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Making sure that we are managing
everything together is important, but
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it's also the hardest thing, ' cause it's
also the hardest thing to communicate.
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Because it's like, if you want to lose
weight, you can eat nothing, no problem.
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That's a quick fix.
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But what you really have to do is you
have to look at your lifestyle, and
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you have to say, "If I want to hold this
weight off, or if I want to lose weight
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healthily, I have got to look at how I
eat, how I sleep, how my mental health
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is, how, like, my whole lifestyle is.
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Is it active?
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Is it sedentary?" We have all
these different ways of looking at
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health, and we do that when people
actually get healthy, they end
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up losing weight because they look
at their whole system and look at
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how to better protect that system.
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The same thing is with the ocean.
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We're not just protecting
individual species.
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If you protect the whole system, those
species are inevitably protected.
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So good conservation is often not about
protecting the most famous species.
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It's about protecting the system
underneath the species we love.
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So that's the episode for today.
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I would love to hear your comments
on these episodes, and I'd love for
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you to hear the episode tomorrow.
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You can go to speakupforblue.com/feedback
to let me know what you
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think about these episodes.
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Don't forget to go to our
sponsor, piscesoceans.ca.
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That's www.piscesoceans.ca.
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Link is in the show notes among
other links of how to get a hold of
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me to have conversations with me.
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More and more of you are reaching
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If you just love the podcast and
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Decoded and all that kind of stuff?
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I want to know more.
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And what you want to know.
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Like, what topic do you
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Don't worry about it.
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this episode with somebody you
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and learn more about the ocean.
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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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Have a great day.
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We'll talk to you tomorrow when I
talk to Jack Daly from Oceana Canada,
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where we talk about forage fish report
that they just released for Canada.
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And it's not a good one, but
you're gonna wanna hear it.
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So thank you so much.
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Have a great day.
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We'll talk to you next time,
and happy conservation.













