Tag Archive for: Reef Education

The “WAR ON WASTE” According to Coral Reefs

The war on waste has become a hot topic in recent times… but how does it relate to coral reefs?

Ever wondered why that coral reef you visited looked like a bunch of (albeit very beautiful) lifeless rocks, when you expected it to be a vibrant and flowing paradise?

A big reason for that could be that most corals are nocturnal – meaning they extend their polyps into the water column to feed at night.

Corals create a unique symbiotic relationship with a microscopic algae called “zooxanthallae,” so it makes sense to take advantage of this photosynthesis to obtain their energy during the day, and to extend their polyps to feed (by catching particles in the water column) at night.

Night time is when coral polyps are feeding, and also trying to take over new territory. Have you ever witnessed or heard about Coral Reef Wars?

Coral Reefs and the War on Waste

Everything may look gorgeous, harmonious and tranquil, but it’s a harsh world down there. Coral reefs take up less than 0.01% of the ocean floor, yet are home to almost 25% of all marine life. That’s a whole lot of ocean creatures fitting into a very itty bitty space!

As so many creatures are living in such close quarters on coral reefs, it means there is fierce competition for both space and resources. Corals will extend their stinging tentacles in warfare against their neighbouring corals, attempting to take over as much valuable real estate as they can get their hands – or tentacles – on.

If coral reefs support so much life, you’d think there are plenty of nutrients, wouldn’t you? Well, coral reefs are actually a bit like deserts in the way they are low in available nutrients and all the good stuff marine life are looking for.

We say “available” nutrients because there are not a lot of free nutrients just hanging around waiting to be used. Coral reefs are the best recyclers on the planet! Nothing goes to waste and all resources, once used, seem to find another life, or be useful to another creature in their lives. There’s a lot of eating, pooping, eating poop and pooping out the eaten poop. All of these processes are constantly happening on repeat! If only we could learn how to recycle all of our resources on land so efficiently, we’d be well on our way to tackling the war on waste!

5 Real Life Lessons Coral Reefs Taught Me

It may seem that the reef is far away, and not all of us are lucky enough to have it as a part of our daily lives (don’t we all wish!). As a Master Reef Guide, I am lucky to experience the beauty of the reef close up. Here are a few valuable life lessons the reef has taught me.

Lesson 1 – There’s so Much More to Life than Meets the Eye!

Whether you find yourself admiring the beauty of the reef in pictures, from the surface or the air, or even snorkelling or diving underwater, you’ll discover there is so much more than initially meets the eye. There are myriad of intricacies and detailed beauty you can only see by slowing down and taking a closer look.

Lesson 2 – Adaptation is the Key to Survival

As in our lives, survival on the reef is all about how able we are to adapt to a changing environment and circumstances. Change is inevitable, and it’s not the smartest or strongest that will survive, but the most adaptable to change.

Lesson 3 – Be Resilient

Climate Change, cyclones, poor water quality, overfishing and illegal fishing. The reef is faced with one challenge after another, and yet it has shown incredible resilience and an ability to bounce back after challenges. Plate corals can be flipped on their heads or sides, and by the next season there are new coral recruits settled and growing on the structure. They fall down, yet they just keep going and growing!

Lesson 4 – Respect Your Elders

Reefs are faced with numerous threats and challenges, yet have managed to survive 5 mass extinctions, repeated ice ages, the complete rearrangement of the tectonic plates, massive volcanic eruptions, AND the arrival of humans… so far! The oldest coral fossils date back to 535 million years ago. Corals have been around for much longer than we have, and we can learn a lot from them if only we take a moment to stop and listen to the stories they are telling us.

Lesson 5 – Plant Power is the Best Power!

Reefs are like underwater solar-powered megacities. By far the most underestimated building blocks of our ocean planet, and especially of our reefs, is plant life. The majority of life on earth (including in the oceans) is driven by sunlight taken up by plants through photosynthesis. The reef is no exception! Phytoplankton drift along in ocean currents, forming the basis of the marine food chain and producing the oxygen that supports life on earth. Teensy tiny algae called zooxanthellae live inside coral tissues, providing them with most of their energy, allowing them to build reef structures and support an abundance of creatures. What would life be without plant power?!

Here’s how you can protect the Great Barrier Reef

Our national wonder, the Great Barrier Reef is as large as Italy, seen from space, and is home to many thousands of coral and marine life species. No action is too small to become a good friend to the Reef.

The Consequences of Climate Change & Unsustainable Living

The ocean ecosystems face tremendous pressure from human impact on the planet. The previous four years have been particularly devastating for coral reefs around the Indo-Pacific region. Hundreds of millions of people depend on coral reefs for food, shelter, tourism, and a healthy lifestyle. At this crucial time, the United Nations Ocean Conference brings political leaders of nations together to address the alarming decline in the health of our oceans.

BioQuest Studios, together with the Tara Expeditions Foundation, prepared a special visual message that was screened at the conference in 2017. The message, however, wasn’t just for the people who make decisions at the highest levels of government. We all need to understand how our lifestyles can damage the oceans and how we can avoid this by making simple decisions to alter our habits, politics, culture and the way we treat our planet.

As the filmmaking team on board the Tara Pacific expedition, they had the chance to witness and document the consequences of unsustainable living and climate change across vast areas of the Pacific Ocean. Sadly, even the most isolated reefs Tara has visited during the 2016 leg were in severe decline.

Most areas visited were significantly affected by coral bleaching. To document the process of bleaching, we had to devise a graphic method to depict the complex lifeform that builds the reefs – the coral. Coral, along with its microscopic symbionts, is an animal that lives in a world beyond our ordinary perception. Human vision is not tuned to see this world. We cannot appreciate it under its ambient light spectrum, focus on its microscopic polyps or visualise its behaviour due to the slow pace of its existence.

BioQuest Studios turned to digital imaging techniques used in science to reveal the hidden beauty of this magnificent animal. The super macro images are the highlight of over two years of work by the team. Focus stacked time lapses went through hundreds of hours of computer processing to extend the depth of field, even more hours of deconvolution algorithms to extract the minute details from the sensor data, and they originated from over half a million high-resolution still images taken in their purpose-built studios.

The colours featured in the video are not enhanced in any way. Coral pigmentation is fluorescent and therefore its appearance depends on the light spectrum the animal is immersed in. All images were captured simulating the ambient underwater spectra that would exist where the animal lives. Consequently, the colours are real!

Digital imaging allows us to connect with the creatures that form coral reefs. Up close, corals may look alien to us, and their environment is not one we can experience without the use of man-made devices. Ultimately, however, we share many similar biological features with them, as we do with all animals on the planet. A degree of difference in the temperature of the ocean does not sound like an extreme environmental shift, but how does an extra degree of temperature during a fever make us feel? Corals are vulnerable to changes in ocean temperatures. They become stressed, sick and die if their environment is not in balance. Our health too relies on the health of the ocean.

Tragically we are currently witnessing a planet-wide ecosystem collapse. On our watch, thousands of square miles of coral reef is turning into rubble and lifeless deserts. Surely this must be acknowledged as a blaring and urgent ecological alarm bell. Mass coral bleaching events are a sign for the long-needed change to live sustainably, vote wisely, and dramatically cut down on carbon emissions and meat consumption. We must become aware of our actions, learn from our mistakes and make the wisest of choices for the health of our planet.

Our ocean, our future!