Latest / How To Protect The Ocean / Coral Restoration In Trouble: Why Saving Reefs Takes More Planting Coral
Transcript
- 0:00Coral reefs are
- 0:01bleaching again this year.
- 0:03This is the fourth year in a row where
- 0:05the Great Barrier Reef has
- 0:06bleached a significant amount.
- 0:08Will it recover? Probably for the most
- 0:10part it will recover as it's recovered
- 0:12over the last four years.
- 0:14However, what is this going to do at time
- 0:18after time after time to the longevity of
- 0:20the coral reefs in
- 0:21the Great Barrier Reef,
- 0:22as well as around the world? And does
- 0:24restoration, coral
- 0:25restoration, help reestablish corals,
- 0:28not only locally, but will it help
- 0:30overall in the fight to protect corals?
- 0:33We're going to talk about that on today's
- 0:34episode of the How to
- 0:35Protect the Ocean podcast.
- 0:36Let's start the show.
- 0:39Hey, everybody. Welcome back to another
- 0:40exciting episode of the How
- 0:41to Protect the Ocean podcast.
- 0:42I'm your host, Andrew Lewin, and this is
- 0:44the podcast where you find out what's
- 0:45happening with the ocean,
- 0:46how you can speak up for the ocean and
- 0:48what you can do to live for a better
- 0:49ocean by taking action.
- 0:52I'm going to tell you something here. I'm
- 0:53going to admit something.
- 0:54This is a bit controversial.
- 0:55When I saw this article, I was a little
- 0:58worried about bringing it up.
- 1:00It was in that cosmos and they tend to
- 1:02have pretty good articles.
- 1:04And I was worried because coral
- 1:06restoration is very popular right now.
- 1:08And this is something that a lot of
- 1:09people are doing, especially locally, to
- 1:11try and do something to reestablish the
- 1:14local coral population and protect it
- 1:16from not only bleaching,
- 1:17but other significant factors such as
- 1:20water pollution, coastal development,
- 1:22overfishing, a lot of different things.
- 1:24And those cumulative impacts can affect
- 1:27not only wild, like an untouched and
- 1:30preserved population, but can
- 1:31also harm coral restoration.
- 1:34So there's a lot of stuff
- 1:35going on in this article.
- 1:36And I want to talk about it.
- 1:37I have thoughts, you
- 1:38know, always restoration.
- 1:40And this is the real crux of the matter
- 1:42is restoration is always more expensive
- 1:44and harder than
- 1:46preservation or conservation.
- 1:48Let me say that again. Restoration is
- 1:50always more expensive and harder than
- 1:52preservation and conservation.
- 1:54So that means if we have a healthy coral
- 1:56population or even a somewhat healthy
- 1:59coral population that has not been
- 2:01degraded to the point where it requires
- 2:02restoration, it's actually cheaper to
- 2:04protect than it is to
- 2:06bring back those corals, right?
- 2:08And either, you know, farm them on land
- 2:11and bring them back into
- 2:12the water and plant them.
- 2:13That's always more expensive. And this is
- 2:16not just for coral restoration. This is
- 2:18for any type of restoration in the wild.
- 2:20Like I remember working for the
- 2:21Department of Fisheries and Oceans, we
- 2:23would do restoration projects in the
- 2:24Great Lakes and it would cost like
- 2:26hundreds of thousands of dollars just to
- 2:28put rocks in for fish habitat.
- 2:30Like these are just rocks, nothing
- 2:32special. They're just rocks that you
- 2:34would normally find there.
- 2:35They were just dredged or they were just
- 2:36moved and they wanted to restore a
- 2:38specific fish population.
- 2:39They know they like these rocks of that
- 2:41area. They would go grab the rocks. They
- 2:43would get higher bars. They would bring
- 2:45it in. They would pile it up and it would
- 2:46create fish habitat.
- 2:47It wasn't difficult, but it was super
- 2:49expensive. Like hundreds and hundreds of
- 2:51thousands of dollars and you're just
- 2:52sitting there and you're just like, this
- 2:54would have been really great if we just
- 2:55kept it the way it was.
- 2:57If we had just been proactive instead of
- 2:59reactive and said, hey, you know what?
- 3:01Let's just protect this fish
- 3:02habitat here in the Great Lakes.
- 3:03But sometimes we don't know the damage
- 3:05that we cause because we rush into
- 3:07things. Hint, hint, deep sea mining. Just
- 3:09gonna say it. Just gonna say it.
- 3:12We don't want to rush into things when we
- 3:13do stuff, especially as humans, that is
- 3:15extractive, right? Or that
- 3:17will alter a fish habitat.
- 3:19Now here in Canada, I can't speak for
- 3:20anywhere else, but here in Canada, I know
- 3:22it's a rule as part of the Fisheries Act
- 3:24that if you are going to harm fish
- 3:26habitat here in Canada, whether it's in
- 3:28the ocean or in freshwater lakes or
- 3:30rivers or streams, you have
- 3:32to compensate the government.
- 3:32You have to say, hey, you know what? I
- 3:34know we're going to be altering this fish
- 3:37habitat. So I'm going to give money to
- 3:39another project that's
- 3:40restoring fish habitat.
- 3:41And that's how they got the money to do
- 3:43the restoration in other places, which
- 3:45they'll probably get money to restore the
- 3:47place that they're actually altering at
- 3:48that point at some point down the road
- 3:50when they realize, oh man,
- 3:51we really screwed up here.
- 3:53We shouldn't have done this in the first
- 3:54place. And that's not just science based.
- 3:56That is just a lot of public pressure, a
- 3:58lot of political pressure to develop and
- 3:59to do things in the
- 4:01water, in and around the water.
- 4:01That can harm or remove items that are
- 4:04critical to specific fish populations or
- 4:07just critical to that habitat functioning
- 4:10as it does. And if you remove it, it
- 4:12changes that habitat. Let's go back to
- 4:15coral reefs for a second. Coral reefs are
- 4:16very sensitive habitats, but they're very
- 4:18important. They're one of the most
- 4:19diverse in the world. They are beautiful.
- 4:22They're a tourism hotspot.
- 4:23Tourists like myself, when we go down
- 4:26south and I'm able to go into the
- 4:28tropics, I'm able to either scuba dive or
- 4:29snorkel. I am taking every advantage to
- 4:32go into that water and look at corals.
- 4:35Look at the invertebrates. Look at the
- 4:36fish. I'm an invertebrate guy, so corals
- 4:38and invertebrates are my thing.
- 4:39But I love seeing a good school of fish.
- 4:42There's nothing like it. And also when
- 4:44you see stuff in pristine condition, I'm
- 4:47looking at little nematodes that are
- 4:49orange and black and they're just
- 4:51interacting with the coral. You're seeing
- 4:53a parrot fish, a rainbow parrot fish take
- 4:56little chips off the coral just to take
- 4:58the algae off and you know that coral is
- 5:00going to regrow because that's part of
- 5:02its regular functioning.
- 5:02But there's nothing worse than going
- 5:04diving or snorkeling and you see a coral
- 5:07that has a disease or that is bleached.
- 5:10And what I mean by bleached, essentially
- 5:12corals have these living organisms, the
- 5:14dinoflagellates in them. So these
- 5:16phytoplankton that are in that live
- 5:17inside the colonies and they actually use
- 5:20photosynthesis to create the calcium that
- 5:23the limestone skeleton of
- 5:25the coral needs to grow.
- 5:26So it's a symbiotic relationship.
- 5:28Zuandeli is what the dinoflagellates are
- 5:30called and they're pretty important.
- 5:32They're pretty critical to the survival
- 5:34of these corals. Now, when the coral gets
- 5:36hot, like sea surface temperature and
- 5:38climate change cause sea surface
- 5:39temperature to increase, there's more
- 5:41radiation coming in. There's a lot of
- 5:43stuff that's going on.
- 5:43The dinoflagellate starts to be like,
- 5:45this is really hot. I don't really like
- 5:47this. I'm going to start to tell you that
- 5:49I don't really like this. And it starts
- 5:51to expunge these little chemicals that
- 5:54the coral doesn't like. It says, you know
- 5:55what? Get out of here. You're done.
- 5:57You're not behaving. It's like when your
- 5:59mother sends you to your room or your
- 6:00father sends you to your room. Get out of
- 6:02here. You need to time out. So the
- 6:04zuandeli gets expunged by the coral into
- 6:06the water column and then it becomes
- 6:09white because the
- 6:10zuandeli give it that color.
- 6:11They give it the yellows, the maroons,
- 6:13the purples, whatever color that you see
- 6:16down there, the greens, the zuandeli are
- 6:17responsible for giving that color. If it
- 6:19doesn't have that color, then it's just a
- 6:21white skeleton and it can't get the
- 6:23calcium that needs to grow and eventually
- 6:25dies. Sometimes it can't feed itself
- 6:27because some will actually filter feed.
- 6:29And so it dies. And that's what happens
- 6:31if it doesn't come back. And that means
- 6:32if the sea surface temperature stays hot
- 6:34for long, that the zuandeli can't come
- 6:37back and recolonize or other zuandeli
- 6:39can't come back and
- 6:39recolonize, then we have a problem.
- 6:40This bleaching goes away like this
- 6:44bleaching stays forever and the corals
- 6:45eventually die because they can't get the
- 6:47minerals that they need to actually
- 6:48survive right and the ions they need to
- 6:50survive. So that is a huge problem. And
- 6:52that's what's been happening when corals
- 6:53get bleached all over the world, not just
- 6:55in the Great Barrier Reef. Obviously
- 6:56that's something that is an iconic
- 6:58habitat. So we focus on there and it's
- 7:00huge, but it recovers every year because
- 7:03the temperature doesn't last as long, but
- 7:05every single year the hot temperature
- 7:07last longer and longer and longer.
- 7:09Right. So if you hit 40 degrees Celsius
- 7:12for longer and longer days, so maybe for
- 7:14the first year was like five and then the
- 7:16second year was 10 and the third is 15.
- 7:18And I'm not saying it's going up to that
- 7:19much, but what if it does and it just
- 7:21continues to increase in the length of
- 7:23the number of days that it's hot.
- 7:23That's over 40 degrees Celsius that
- 7:26causes the zuandeli to get expunged to go
- 7:29to the room to go to the water column.
- 7:31Now we have a problem, right? Now we have
- 7:33a continuous to happen. So the recovery
- 7:35ability of the coral is
- 7:37less and less every year.
- 7:39You get what I'm saying? This is a big
- 7:41problem. Now what people are doing around
- 7:43the world, they're saying, you know what?
- 7:45I'm not just going to take this lying
- 7:46down. There's not a lot we can do about
- 7:48climate change on a short term factor,
- 7:51other like as
- 7:51individuals or as an organization.
- 7:52Other than pressuring the government to
- 7:55reduce greenhouse gases, put in act and
- 7:58implement and follow, you know, Paris
- 8:00Accord agreements and all those type of
- 8:02Kyoto agreement back when I was younger,
- 8:04all these different agreements have
- 8:05actually followed it and they actually
- 8:06realize the potential of these policies
- 8:09that would bring us down lower and lower
- 8:11and greenhouse gas emissions that would
- 8:13allow us to get lower temperatures
- 8:14overall or not increase and continue to
- 8:17increase as we keep doing
- 8:18every year as a world population.
- 8:19Then we were able to actually fix things,
- 8:22but a lot of people are like, I can't do
- 8:24anything for that in the short term,
- 8:26right? Some governments are going to
- 8:27listen to some governments aren't and
- 8:29that's just what the reality is. So some
- 8:31people are like, I need to do something.
- 8:32I need to feel like I'm doing something.
- 8:34I want to do something locally so that I
- 8:36can think globally, act locally, right?
- 8:39Or is it act locally, think globally? I
- 8:41always get confused with that.
- 8:42Regardless, it's a good thing to do and
- 8:44you want to protect the coral reef in and
- 8:46around your area or the habitat, like say
- 8:48I'm in Canada, in and around your area.
- 8:48Although we do have coral reefs, but
- 8:51they're just a little deeper and they're
- 8:53beautiful sponge reefs. Anyway, we do
- 8:54have some beautiful reefs here. But
- 8:56regardless, you know, you want to think a
- 8:57lot of people want to restore these
- 8:59habitats that have been degraded or have
- 9:01been bleached over time. So what they'll
- 9:02do is they'll come up with an
- 9:04organization, they'll get funding or
- 9:05they'll get ways to pay for it. So some
- 9:07will actually sell corals to the aquarium
- 9:09industry as they cut them and as they
- 9:11make them and as they grow them in, I
- 9:13guess, the aquarium tanks. And then you
- 9:14get to bring them out. That's how they
- 9:17fund them the money to actually do their best to the aquarium tank, and they're actually going to do their best to the aquarium tank.
- 9:17And then what they do is they bring out
- 9:21the coral pieces and they attach them on
- 9:23to different rocks in a reef where there
- 9:25used to be plenty coral. Now you have a
- 9:27growth and it grows and grows and grows.
- 9:29But if you get a bleaching event again,
- 9:31those corals could bleach.
- 9:33And so is it really that important? This
- 9:35is what a long way of saying this is what
- 9:37this article gets into says global reef
- 9:39coverage has potentially decreased by up
- 9:41to 50% up to 50% with projections
- 9:44indicating loss exceeding 90% by the
- 9:47centuries and due to climate change,
- 9:49pollution and overfishing, right?
- 9:49Which we all talked about. So looking at
- 9:53restoration efforts is there's a bigger
- 9:55decrease than it can increase. So current
- 9:58restoration initiatives such as coral
- 9:59gardening and artificial reefs are
- 10:01insufficient against the
- 10:02vast scale of reef degradation.
- 10:03These methods are often limited in scope,
- 10:06expensive, as I mentioned before, and
- 10:08focus on already compromised reefs. So
- 10:11the high cost is that restoring just 10%
- 10:14or 11,700 square kilometers of degraded
- 10:17reef from 2009 to 2018 would require over
- 10:21$1 billion, nearly quadrupling the total
- 10:25global investment in
- 10:26coral restoration to date.
- 10:271 billion. Just imagine that 1 billion
- 10:31with inflation is probably even more than
- 10:33that. Right? So I talked about coral
- 10:35bleaching and what it causes. Now the
- 10:37compounding stressors of overfishing and
- 10:39pollution make it worse. It exacerbates
- 10:41the effects of bleaching, stressing the
- 10:44coral systems and increasing the
- 10:45mortality rates, meaning that it has a
- 10:47harder time to recover.
- 10:48So just think about this, this analogy,
- 10:50right? You're a human being, you're in
- 10:52decent shape, but you don't eat the best
- 10:54way and you're not working out. But you
- 10:57stay healthy, you walk a lot, say you
- 10:58have dogs and you go out and you walk a
- 11:00lot and you do a little bit of exercise,
- 11:01say in Keering Canada, you play hockey,
- 11:03maybe in the States you're playing flag
- 11:04football or you're playing lacrosse or
- 11:06you're playing soccer,
- 11:06you're active, right?
- 11:07But you have all these other stressors,
- 11:09you're not eating properly and you're not
- 11:10working out as much as you should. And
- 11:12that stressor can really happen. So if
- 11:14something happens, then the stressors
- 11:17make things worse, it doesn't help in
- 11:19your recovery to get to a healthier
- 11:21place. So by maintaining that health and
- 11:25taking away all these extra factors like
- 11:27eating unhealthy or not working out as
- 11:29much as you should, that would harm you
- 11:31right from a health perspective, right?
- 11:33All the doctors would say that you need
- 11:34to eat, right? You need to
- 11:35exercise on a semi regular basis.
- 11:36And then you should be fine, but you
- 11:38never know. So if you get something like
- 11:40cancer and you already have heart disease
- 11:42or you're having a problem, that's going
- 11:43to make things worse. Well, this is the
- 11:45same thing with corals. If corals are
- 11:47stressed with algae overgrowth, right?
- 11:50Because of bad water pollution and high
- 11:51nutrients, then it's going to be working
- 11:54to try and get rid, not really get rid of
- 11:56the algae, but the algae is going to have
- 11:58an unhealthy effect on that coral. And
- 12:00then all of a sudden you bring in climate
- 12:02change and it's heating up the water. And
- 12:04that coral says, hey, to the zoo and it's like, get out.
- 12:05Get out. Go to your room. I don't want
- 12:08you in here right now it's too hot.
- 12:10You're causing some trouble. I need to
- 12:11figure this out. I got algae overgrowth.
- 12:14I've got high temperatures. I've got
- 12:15sediment coming in from coastal
- 12:17development. I've got somebody's trying
- 12:18to fish all over us and we can't get the
- 12:20Parrotfish to take the algae off. This is
- 12:22awful. We can't do this, we can't have
- 12:24all of this stuff happening at the same
- 12:26time. So having those
- 12:27cumulative effects, no good.
- 12:28No good.
- 12:29The bad news is we may not be able to
- 12:30control climate change in the short term.
- 12:32The good news is we can control water
- 12:34pollution, we can control coastal
- 12:36development, and we can
- 12:36control overfishing. Those are the things
- 12:39that we can control,
- 12:40especially when it's near shore.
- 12:41So being able to control that and taking
- 12:43away those cumulae
- 12:44effects will give a chance for
- 12:46coral reefs to recover faster. In fact,
- 12:48there was a study done a few
- 12:49years ago, I'll have to find
- 12:50the link. I don't know if I'll be able to
- 12:51find it in time, but there
- 12:52was a study done a few years
- 12:53ago that looked at corals that were
- 12:55beyond borders. They
- 12:57were out in the middle of
- 12:58nowhere. They bleached and then they
- 13:00recovered a lot faster than those that
- 13:02were closer to shore.
- 13:03They were getting affected by overfishing
- 13:04and by water pollution. So
- 13:06these things actually matter.
- 13:09And when you look at global action and
- 13:11you say, "Hey, look, this
- 13:12report without significant
- 13:13reductions in greenhouse gas emissions
- 13:15and the broader environmental
- 13:16protections, localized
- 13:17restoration efforts aren't really going
- 13:18to do anything. They're
- 13:19going to be really expensive,
- 13:20but overall, we're losing this battle."
- 13:22And this is not to take
- 13:24away from anybody who's doing
- 13:25coral restoration because it's really
- 13:27important. It's important
- 13:28not only to see the effects and
- 13:30the successes that we see locally, but
- 13:32it's important to get
- 13:33people involved and connected
- 13:34to the ocean. A lot of the times, these
- 13:35are community projects.
- 13:37And so the community gets
- 13:38together maybe with a couple of experts
- 13:40like scientists and
- 13:41conservationists and even marine
- 13:42aquarium hobbies that are really good at
- 13:44propagating corals. And they
- 13:45go out and they do this as a
- 13:47community. It's really great. It's like a
- 13:48beach cleanup. It gets
- 13:49people connected, sees what's
- 13:50happening out there, and then they can
- 13:52make changes locally as
- 13:54well as in a community basis.
- 13:55So I don't want to take away from anybody
- 13:57who's doing coral
- 13:57restoration, but it's not the answer.
- 13:59If you see that happening and you're
- 14:01like, "Thank you for doing
- 14:01it." Thank the person because
- 14:02they're making a lot of effort and
- 14:04they're giving up their time.
- 14:05A lot of times, whether it's
- 14:06professionally or on a volunteer basis,
- 14:08they're giving their time
- 14:08to actually do this work,
- 14:10but it's not the sole answer. We can't
- 14:14restore our way out of this. We have to
- 14:15protect and we have to
- 14:16reduce greenhouse gases. We have to
- 14:18reduce pollution and we
- 14:19have to reduce overfishing.
- 14:21That's a necessity. Like we are in dire
- 14:24needs right now, right?
- 14:26We've lost less than 50% of
- 14:27coral student bleaching. That's not good.
- 14:29We need to do better. Restoration is
- 14:31helping. It's a tool
- 14:32in the conservation tool belt, but it's
- 14:35not the tool. It's not the
- 14:36thing that's going to put us
- 14:37over the edge to say, "Hey, you know
- 14:38what? We're winning the battle
- 14:40for coral restoration against
- 14:41climate change." That is a sad reality.
- 14:45When you watch those videos of people
- 14:46going out and diving
- 14:47and doing that thing, thank them. They're
- 14:48doing great effort, but
- 14:50it's not the solution. It's not
- 14:51their fault. They're doing what they can.
- 14:53They're doing whatever they
- 14:54can do, but we need to really
- 14:56work on policy. We need to work on voting
- 14:58people in, politicians
- 15:00in that will actually do
- 15:02reduction in greenhouse gas and work and
- 15:04make sure that the energy
- 15:06sector is sustainable and
- 15:07it's greener than it normally is. That's
- 15:10what we need to do. We're not moving fast
- 15:11enough and we're losing
- 15:12these precious habitats at a phenomenal
- 15:15rate and we do not want to do that. So
- 15:16that is my call to action.
- 15:18Thank the people who are doing it, but
- 15:20understand that we need to
- 15:21do more from a policy basis
- 15:23than a political basis than any time in
- 15:25our history. This is dire
- 15:27needs, people. If you love corals,
- 15:29you love snorkeling on corals, you love
- 15:31diving on corals, you love
- 15:32just watching them on TV.
- 15:33Well, you can't get that all the time. An
- 15:35AI generation of pictures and
- 15:38stuff as great as AI can be.
- 15:39It's not going to be the same as when you
- 15:41see a beautiful healthy
- 15:43coral right away. You know what?
- 15:45If you ever have a chance and you're a
- 15:47TikTok fan, go to TikTok, go to Carissa
- 15:49Cabello's TikTok profile
- 15:51and watch the videos of her looking at
- 15:54beautiful corals in Hawaii. They are
- 15:57phenomenal and so it's
- 15:59wonderful place to do it. It's a creator
- 16:00that I watch on a regular
- 16:01basis because she has such
- 16:03great pictures and she takes such a great
- 16:04action, right? She does
- 16:06what she can and we need more
- 16:08people like her and there are more people
- 16:09like her on TikTok. And
- 16:11in fact, if you are in the
- 16:12comments in YouTube or you want to hit me
- 16:13up with your favorite
- 16:14creators that show these types of
- 16:16things, please let me know. I'd love to
- 16:17get connected with them
- 16:18even more so than I am with
- 16:20others that are around that I know of. So
- 16:21hit me up in YouTube
- 16:23comments or hit me up on Instagram
- 16:24at how to protect the ocean or you can
- 16:26contact me through
- 16:26speakupforblue.com. Just go to our
- 16:28contact page. That form that you fill out
- 16:30goes right to my email and
- 16:31I try and get back to you
- 16:32as soon as possible. I want to thank you
- 16:34so much for listening to
- 16:35this episode of the How to
- 16:36Protect the Ocean podcast. I'm your host,
- 16:38Andrew Lewin from the True
- 16:39North Strong and Free. Have
- 16:40a great day. We'll talk to you next time
- 16:42and have a conservation.