Uncover the hidden giants of the deep sea: researchers uncover widespread habitats of massive crustaceans, challenging our understanding of marine life and ecosystems.
The Deep Sea’s Hidden Giants: Uncovering the Habitat of Supergiant Crustaceans
A New Perspective on Deep-Sea Life
Deep-sea creatures have long fascinated scientists and the general public alike. Among them, the enigmatic crustacean Alicella gigantea, also known as the supergiant amphipod, has garnered significant attention due to its remarkable size. This species, found nowhere else in the world, can grow up to 34 centimeters in length, making it ‘the largest amphipod on record’.
Unraveling the Mysteries of Deep-Sea Habitats
Paige Maroni, a researcher at the University of Western Australia, has shed light on the potential habitat range of A. gigantea. With its vast distribution across the Pacific, Atlantic, and Indian oceans, this crustacean may be more common than previously thought. In fact, Maroni suggests that these creatures might be more connected than initially believed.
Maroni’s team collected 75 records of A. gigantea, which date back to the first specimen collection in 1899. The specimens were found at depths ranging from 3890 to 8931 meters, with an estimated 59% of the sea floor falling within this range. Furthermore, genetic analysis revealed that all specimens shared a common genetic profile, indicating a single genetically similar species.

The deep sea is a vast, largely unexplored environment covering over 70% of the Earth's surface.
It is divided into several distinct zones, including the bathyal zone (200-4,000 meters), abyssal zone (3,500-6,000 meters), and hadal zone (6,000+ meters).
These areas support unique ecosystems, with species adapted to extreme conditions such as near-freezing temperatures, crushing pressure, and total darkness.
For example, giant tube worms thrive in hydrothermal vents, while deep-sea fish have bioluminescent lures to attract prey.
Implications for Our Understanding of Deep-Sea Life
The findings of Maroni’s team imply that A. gigantea could thrive across an extensive area of the ocean floor, far beyond what sparse collections would suggest. This discovery highlights the vastness and complexity of deep-sea ecosystems, challenging our previous assumptions about the distribution of marine life.
Deep-sea ecosystems are vast and diverse, covering over 70% of the Earth's surface.
These ecosystems are characterized by extreme conditions, including near-freezing temperatures, crushing pressure, and total darkness.
Despite these challenges, deep-sea creatures have adapted to thrive in these environments.
Giant tube worms cluster around hydrothermal vents, while deep-sea fish use bioluminescence to communicate.
The deepest parts of the ocean, such as the Mariana Trench, are home to unique organisms that have never been seen before.
By exploring the depths of the ocean and studying creatures like Alicella gigantea, scientists can gain a better understanding of these mysterious environments and their inhabitants. As we continue to uncover the secrets of the deep sea, we may discover even more unexpected connections between different species and ecosystems.
The ocean covers over 70% of our planet, yet it remains one of the most unexplored regions.
Ocean exploration has a long history, dating back to ancient civilizations that sailed and mapped the seas.
Today, advanced technologies such as submersibles, remote-operated vehicles (ROVs), and autonomous underwater vehicles (AUVs) allow scientists to explore the ocean's depths like never before.
These explorations have led to significant discoveries, including new species, shipwrecks, and insights into ocean currents and climate change.
- newscientist.com | Supergiant crustaceans could live across half the deep sea floor