Putting Ocean Warming into Perspective

Ocean temp 1

Few places provide the perspective the Earth’s vastness as effectively as standing on the seashore and gazing out on the vast expanse of the ocean. The level horizon provides an uninterrupted vista of the planet allowing the view to extend miles and miles (well, 3 miles about). A dip into this immensity adds the dimension of depth as you realise that this body of water plummets to fathoms below. In fact, the lowest point down in the ocean (Challenger Deep 36,200 feet) is deeper than the highest point up on land (Mount Everest 29,029 feet).

This immensity cloaks the blue planet in not just an aquatic wonderland, the birthplace of life and countless resources, but it regulates the world’s climate significantly. It absorbs and releases heat and water constantly. And with the inexorable release of Anthropocene carbon into the atmosphere and the consequential inching up of average temperatures, the oceans are doing their bit to absorb both.

The problem is that when the oceans absorbs carbon it makes the seawater more acidic which makes it less hospitable for a lot of its creatures. Also, when it absorbs the heat, it raises the water temperature which makes it less hospitable for the one of the pillars of the marine food chain – the coral reefs. The result is the widely reported bleaching and dying of the reefs. Over the two decades we have been visiting the Maldives, we have applauded the destination growing in many exciting ways, but each year (especially recently) we despair at the painful shrinking of the living coral primarily due to the warming sea temperatures.

In the Maldives, the reefs are not just foundation to the ecosystem, but the entirety of the county’s very being. As such, the country has been on the vanguard of campaigning for eco-sustainability and cutting carbon emissions. With the global prominence of Time’s Person of the Year Greta Thunberg and the impassioned television series by famed naturalist David Attenborough “Life on Our Planet”, the scale of carbon impact is getting a higher profile than ever.

But just how big is the impact right now? Forget all of the controversial models and forecasts. Forget the graphs showing tonnes of carbon emitted (as few of us are chemistry experts to know what all that carbon really means). Let’s just look at the actual, observed real world impact today of that carbon and climate change with a easily obtained and verified measurement – the temperature of the ocean.

I’ve happened upon a couple of illustrations of ocean temperature increase recently which prompted this post. The first from the Futurism website noted that

  • After analyzing data from the 1950s through 2019, an international team of scientists determined that the average temperature of the world’s oceans in 2019 was 0.075 degrees Celsius (.135 degrees Fahrenheit) higher than the 1981–2010 average…The amount of heat we have put in the world’s oceans in the past 25 years equals to 3.6 billion Hiroshima atom-bomb explosions. That averages out to four Hiroshima bombs’ worth of energy entering the oceans every second for the past 25 years. But even more troubling, the rate isn’t holding steady at that alarming figure — it’s increasing.”

But a possibly even more dramatic number and comparison is the simple quantification of the energy that the ocean has absorbed – an accelerating at average of 10 zetta-joules per year(and last year was over 200 zetta-joules added). ZETTA joules. You don’t know what that is? Not surprising since it is such a big number there really aren’t many things in the universe to apply it to. A “zetta” is “10^21” (1 with 21 zeros after it).

QI: What Exactly Is It??

Q: What are those things swimming around the reef?
A: Fish?
Q: Buzzzz…there’s actually no such thing as a fish.

That’s the conclusion of eminent natural historian Steve J. Gould (small world coincidence – Lori sang in the same choir as him years ago). There are all sorts of creatures dubbed “fish” and yet they all exist on all different branches of the species taxonomy – jellyfish, cuttlefish, crayfish, shellfish starfish. There is no one Order or Genus that contains all or even the vast majority of species that people popularly refer to a “fish”. As a Telegraph piece describes: “Unlike mammals and birds, not all the creatures we call fish today descend from the same common ancestor. Or put another way, if we go back to most recent common ancestor of everything we now call fish (including the incredibly primitive lungfish and hagfish), we find that they also were the ancestor of all four-legged land vertebrates, which obviously aren’t fish at all.” (at least in the Maldives you can be pretty sure that the “fish” you are dining on is actually the fish they say you are eating which is not always the case elsewhere).

On a similar note, Bird and Moon flippantly points out another aquatic “Animal With a Misleading Name” – the Peacock Mantis Shrimp. They look like a walking lobster tail where the claws and long legs have been removed (but they’re not even Lobsters either). Mantis Shrimp are their own distinct order of “Stomatopods” (which falls under the Subphylum of Crustaceans). But their mendacious moniker isn’t the only curiosity of this colourful creature. In fact, the Oatmeal, illustrated a complete portrait of the bizarre life of the mantis shrimp (“my new favourite animal”) with such factoids as and they can move their limbs so quickly they can supercavitate the water (like boiling it), they can accelerate as fast as a bullet, their limbs are so resilient that the cell structure has been studied for the development of combat body armour, they can’t be kept in aquariums because they tend to break the aquarium’s glass.

Peacock Mantis Shrimp

Mantis Shrimp nightmare

Fishscapes

Fish Schools - two

The underwater seascape in the Maldives is just as spectacularly colourful as the famous ocean vistas above albeit with a bit of a broader palette. Here is the latest collection of fish soup of the day pictures of these aquatic tapestries…

The Shapes of Water

Water tapestry 14

World Water Day today. Water is a beautiful thing and few places put it more front and centre than the Maldives which is 99% water. The Instagram crowd have captured some stunning shots of the dappled patterns of this sapphire landscape which Maldives Complete has collected here to celebrate the day (links to originals on the photos)…

Water tapestry 13

Water tapestry 12

Water tapestry 11

Water tapestry 5

Water tapestry 10

Water tapestry 9

Water tapestry 8

Water tapestry 7

Water tapestry 6

Water tapestry 4

Water tapestry 1

Water tapestry 3

Water tapestry 2

Moreish Idols

Morrish Idol  2

Of all the fish soup creatures, some of the most prevalent are the Moorish Idols. Their sweeping top fin and distinctive stripes provide the sensation that you are in some giant open water tropical aquarium when you see them in their massive schools. So distinctively ubiquitous and quintessentially Maldivian, I choose a similar shot for the Profile section background. Here are ten more shots to immerse yourself in…

Morrish Idol  10

Morrish Idol 9

Morrish Idol  7

Morrish Idol 6

Morrish Idol 5

Morrish Idol 4

Morrish Idol 3

Morrish Idol 1

Piscine Pelotons

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The sub-aquatic landscape of the Maldives is also filled with its own photogenic teams of sporty packs in a daily Tour de Fish forming colourful underwater tapestries (thanks Verena)…

  1. Blue Striped Snappers
    Fish - Yellow Striped Snappers
        
  2. Fusilier
    Fish - Glass Fish
       
  3. Moorish Idol
    Fish - Moorish Idol
      
  4. Yellow Sweepers
    Fish - Yellow Sweepers
       
  5. Orange Anthias
    Fish - Orange Anthia
       
  6. Convict Surgeonfish
    Fish - Convict Surgeonfish
       
  7. Oriental Sweetlips
    Fish - Oriental Sweetlips
        
  8. Humpback Snapper
    Fish - Humpback Snapper
       
  9. Gold Spot Emperor
    Fish - Gold Spot Emperor
        
  10. Humbug Dascyllus
    Fish - Humbug Damsel Fish
       
  11. Yellow-fin Surgeonfish
    Fish - Yellow Fin Surgeonfish
       

Mother Ocean’s Colourful Embrace

Clow fish 6

Mother Ocean Day today which “spotlights the magnificent bodies of water that make life on Earth possible”. Few countries appreciate the ocean more than the Maldives where is makes up more of their country than any other. To mark the occasion, I’ve assembled one of the most popular ocean shots on Instagram – the Anemonefish nestled in the protectively mothering tentacles of its host.  If only we landlubbers could live in harmony with the ocean as well as these Amphiprioninae live in harmony in the ocean…

Clown fish 1

Clown fish 2

Clown fish 3

Clown fish 4

Clown fish 5

Clown fish 6

Clown fish 7

Clown fish 8

Clown fish 9

Clown fish 10

Clown fish 11

Clown fish 12

Clown fish 13

Clown fish 14

Clown fish 15

Clown fish 16

Clown Fish 17

CLown fish 18

Clown fish 19

Clown fish 20

Clown fish 21

Clown fish 22

Clown fish 23

Clown fish 24

Clown fish 25

Clown fish 26

Clown fish 27

Aquatic Silver and Gold

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Silver and gold
Silver and gold
Means so much more when I see
Silver and gold decorations
On every Christmas tree
” – Rudolph the Red Nosed Reindeer Christmas Special

Silver and Gold” is one of the musical gems of the Rudolph the Red Nosed Reindeer Christmas Special. The Maldives features its own rich vein of these precious colours in the teeming schools of Yellow Striped Snappers. One of the biggest schools you find and one of the most popular aquatic tapestries to post. Here is a yuletidal collection of some of my favorites…

Yellow Striped Snapper 5

Yellow Striped Snapper 6

Yellow Striped Snapper 8

Yellow Striped Snapper 10

Yellow Striped Snapper 3

Yellow Striped Snapper 7

Yellow Striped Snapper 2

Yellow Striped Snapper 4

Yellow Striped Snapper 11

Yellow Striped Snapper 9

Best of the Maldives: Leaf Fish – Ayada

When you first start diving, the big bold animals are the most alluring – sleek sharks, hovering turtles, soaring mantas. Over time, you start to get more enchanted by the more elusive creatures – tiny nudibranchs, camouflaged stone fish, hidden octopi. The dive becomes more of a treasure hunt than a safari.

One of the classic, masters of disguise is the leaf fish. If your bucket list includes one of these elusive creatures, then one treasure map is provide by Alexander Von Mende who points us to Mafzoo Giri in the Gaafu Alifu atoll:  “You will find a large coral block at around 15m that hosts no less than six residing leaf fish behind a dizzying wall of glass fish.” And if you want the most convenient access, the closest resort is Ayada.

Cute Li’l Fish Day

Octopus brain

The octopus’ Cephalopod cousin, the cuttlefish, is no less intriguing. Itself a clever chappie, they have one of the highest proportions of brain size to body size of all invertebrates. But all the more crazy is that the brain itself is shaped like a donut (a bit of a messed up donut) and the esophagus passes straight through the hole.  They must really get serious brain freeze when they eat ice cream too fast!