Unraveling the Mysteries of the Deep Sea Biodiversity

Unraveling the Mysteries of the Deep Sea Biodiversity

Dive into the depths with us as we unveil marine mysteries from the leptocephalus to the giant squid, and uncover terrifying tales of creatures lurking beneath the waves.

Article topics:
  • Sightings of Sea Monsters
  • Exploring Huge Creatures
  • Big Size Isopods
  • Discovery of Magnapina Squids
  • Theories behind Creatures’ Sizes

  • Are you not intrigued by the vast expanse of the ocean’s biodiversity?
  • Has it ever crossed your mind that perhaps the ocean’s biodiversity is overly vast?
  • What sort of horrifying imagination could have permitted the bringing into existence of the diverse marine life we see today?

Now let’s plunge into the deep mysteries of the underworld of the sea!


The Tale of a Sea Serpent – Perception or Reality?

In 1848, a year that saw historical events such as Karl Marx publishing the Communist Manifesto, there was a most curious occurrence which involved Captain McQuay, of the HMS Day Dallas. He reported spotting a 100-foot sea serpent of horrifying features off the South African coast. Could it have been an ancient plesiosaur or even a giant boa constrictor?

> Unfortunately, we’ll never know exactly what it is that McQuay saw. We know more about the surface of the moon than we know about the bottom of the ocean, and it’s been over 150 years since that sighting. However, we should shed more light on a Danish research vessel named Dana that made another significant find in January 1930.


The “Baby Freak” of the Sea – Leptocephalus

Anton Brunn, one of the scientists involved in the Danish expedition, identified what they caught as leptocephalus, a small, clear-bodied larvae typical to other ocean eels. However, the identified leptocephalus was about 6 feet long, a massive departure from the usual norm.

Could this creature they found only be a baby? If so, how large could it become in the adult form?

It appears it could grow to an eye-popping length of over 180 feet, over the length of a full-sized Olympic swimming pool. It’s no wonder both McQuay and Brun found their creatures off the coast of South Africa, near the Cape of Good Hope.


The “Dreadful Dancer” – The Giant Squid

Let’s swim closer to the recent past. In 2003 a yachtsman named Olivier de Kersauson had a bizarre encounter with an odd marine monster. Claiming the creature was almost 30 feet long, with glistening skin and long arms fitted with suckers. Based on his description it seems Kersauson encountered the Architeuthis dux, or the infamous giant squid.

With an estimated length of 65ft from head to tentacle, the giant squid is undeniably one of the largest invertebrates on Earth. With an almost insatiable appetite, they use their teeth covered tentacles to forcibly draw their prey into the chopping board of their mantle, where they are minced into bite-sized nibbles.


Cat-Sized Rolly Polies – Bathanomis

Bathanomis, otherwise known as giant isopods that remind us of those little rolly-poly bugs often found in our yards, can grow to the astounding size of a small cat. They live primarily at the bottom of the ocean but have the capability to swim freely and are known to venture to relatively shallow depths occasionally.


The Sea Monsters Lurking in the Gulf of Mexico

Toward the end of our imaginary deep-sea exploration, you’d probably think you’ve seen it all. But as Neil Gaiman once said, “Hell is something you carry around with you,” but in this case, hell is at the bottom of the Gulf of Mexico. About 200 miles off the coast of Houston, Texas, at the Oil Platform Perdido, a Remote Operated Vehicle (ROV) spotted the surreal existence of a monstrous creature from the deep sea, identified as a member of the genus Magnapina or the big fin or long-armed squid.


A Journey Back to the Surface

As we journey back towards the surface, ponder upon the peculiar phenomenon of deep-sea creatures growing to substantial sizes compared to their shallow water relatives. There are two theories that could explain this: Bergman’s rule and Kleeper’s law.

  • Bergman’s rule suggests that as the environment grows colder, animals living there grows bulkier, reasoning that as we travel deeper down, it gets colder, hence the need for deep sea creatures to grow larger to maintain body heat and light.
  • Alternatively, Kleber’s law or rule proposes that as a creature grows larger, it becomes more efficient. 

Noteworthy, these theories were tested and verified for surface-dwelling creatures, with little understanding of their effect on creatures dwelling in the deep sea amidst the intense water pressure.


Closing Thoughts – The Never-Ending Mystery

Photo credit: https://wallhere.com/en/wallpaper/27204

Human history is teeming with stories of sea monsters, dragons, and mythical creatures. Despite all technological advances and our ability to chart out most parts of our planet Earth, the deep ocean remains shrouded in mystery and is home to an enigma of fantastical creatures that continue to elude us.

> There will always be mystery wherever or whenever we happen to be. It’s just up to us to find it. Who knows? It might just be waiting for us to swim deep enough.

This blog post could further your understanding of the mysteries of the deep sea, and demystify some common myths. We recommend checking out the other posts on this topic on our website’ who offers a lot of lectures on numerous subjects including oceanography.

Check them out and encourage your own quest for learning and understanding. As always, continue to visit us for more awesome content on the mysteries of nature and beyond. Stay tuned!



Image concept by author via Dalle 2

This article takes a journey into the vast diversity of marine life in the planet’s oceans, examining accounts of unusually large and terrifying creatures sighted by explorers over centuries. In 1848, Captain McQuay spotted a 100-foot sea serpent in South Africa, sparking speculations of potential ancient species unknown to science. In later years, Danish explorers discovered a 6ft long leptocephalus, revealing the potential for massive underwater creatures. Various sightings and encounters with beastly marine life forms including giant squids and isopods continue to fuel debates around the origins, biology, and intelligence of these creatures.

Two theories, Bergman’s rule and Kleber’s rule, suggest explanations for the vastness of these deep-sea inhabitants, linking their size to the environmental and metabolic efficiency conditions at the ocean’s depths. It emphasizes that the ocean represents a realm of endless exploration and mystery, with potential new discoveries waiting to be found.