What is Marine Conservation? | How to Protect Our Oceans

Hello and welcome to the Natural World Facts Awareness Project,

a new series in which I’ll be explaining

the importance of wildlife conservation and
what you can do to help.

In this video, I’m joined by Alex Collins,

a fellow YouTube wildlife
enthusiast and biologist

at the University of Bristol.

His channel is linked below,

I recommend you check it out

for videos on some of the world’s
rarest species

and what you can do to help them.

So what is Marine Conservation?

Marine Conservation is defined as the protection
of marine ecosystems,

With the focus of limiting the damage caused to them by humans

and protecting threatened species.

The main threats being seen in our oceans
include species loss,

habitat degradation,

and changes in ecosystem function.

Human activities
causing a rise in extinction rates

has lead to a huge decrease in biodiversity,

particularly
in coral reefs, 88% of which are threatened

by excessive CO2 emissions.

These reefs are among the most important stores
of biodiversity on the planet;

it takes around ten thousand years for a reef to form from coral polyps,

and up to 30 million years for

a reef to fully mature,

hosting an estimated 25% of all marine life.

And yet, around the world,

coral reefs are dying,

as warming temperatures
and stressful conditions bleach the corals

white as they are forced to expel the colourful
algae

on which the coral depends for its survival.

So, why does this matter?

Why is marine conservation so important?

With the world’s oceans currently more under
threat than ever before,

and with half of

the world’s reefs having died in the last
30 years, Marine Conservation has never been

more important than today.

I’ve already made some videos which answer
these questions on my own channel, so if you’d

like to know why conservation is crucial to
both yourself and the environment, and why

we should save endangered species and ecosystems,
then make sure to check those videos out after

you’ve finished watching this.

Put simply, different species rely on each
other for survival. If one species is under

threat, the likelihood is that so is another
species. This can have a chain reaction, until

eventually a whole ecosystem is under threat.
We need healthy ecosystems just as much as

the marine life itself, because without them,
we’d have less food, less money, and less

life on our planet. The bottom line is, life
on Earth needs healthy oceans, and it is our

responsibility to protect them.

So how can we do this?

One of the most effective methods has been
the setting up of marine protected areas.

This creates a much safer environment for
marine life, undisturbed by the impacts of

overfishing, noise pollution from ships, and
other human activities. Thankfully, biodiversity

has been found to increase by 21% within marine
reserves like these.

We can also use artificial reefs. These are
man-made structures, built to promote marine

life and the growth of new coral. Artificial
reefs have proven successful in providing

a habitat for threatened wildlife, therefore
allowing damaged ecosystems to recover, and

the regeneration of valuable biodiversity
within reef ecosystems.

As well as these strategies, we also need
to be careful in the way we interact with

the marine environment. For example, active
demersal fishing techniques like trawling,

where a net is dragged along the bottom of
the ocean, can destroy the seafloor, which

often contains ecologically important plant
and coral species.

Active pelagic fishing techniques, where a
net is dragged through the open ocean, can

also be just as bad. This is because it’s
indiscriminate, meaning that the nets will

catch anything in their way, regardless of
whether or not the fisherman are looking for

it. This often leads to protected animals
like dolphins and turtles being injured or

even killed. For every 1 kilogram of prawns
that are caught and sold in stores, 9 kilograms

of other sea animals are caught as bycatch,
being injured or killed and then thrown away.

Marine conservation efforts have been made
to reduce the destruction caused by these

fishing techniques, either by reducing how
often they are allowed to be used, or by making

the technique itself less destructive. For
example, by using specific fishing hooks that

are less likely to catch unwanted species.

So there’s a small insight into just some
of the problems that marine conservationists

face today. Solving these problems does take
a lot of hard work, but that doesn’t mean

there’s nothing you can do if you don’t
work as a conservationist.

So here are some simple things that you can
do to help marine conservation.

Firstly, use your water supply more economically.
This will not only save you money but it will

reduce excess runoff, containing pollutants
and waste, into the ocean.

Secondly, use less energy in your day to day
life. Higher temperatures can cause the death

of corals, rising sea levels and flooding,
and more extreme weather which can damage

marine ecosystems. Many marine species also
rely on specific temperatures to determine

what sex they develop into (i.e. they have
temperature-dependent sex determination),

and so by changing the temperature we can
throw an entire population out of balance.

You can also fish responsibly, or just fish
less, or not at all if this is an option to

you. The same goes for eating seafood.

Reducing your use of plastics is also essential.
Ingestion of microplastics (bits of plastic

which are less than 5mm across) can lead to
bioaccumulation. This is where harmful substances

build up in the food chain and eventually
cause serious problems to the organisms at

the top.

There are just a few things that you should
consider when trying to cause less impact

to marine life. There is of course plenty
of other things that you can do to help, so

if you’d like to know more, then let us
know down in the comments, and we can make

another video for you.

Thank you for watching, subscribe to see more
videos from the Awareness Project. Hit the

like button and be sure to watch our video
on the Pine Marten by following the link to

Alex’s channel.