Slender snipe eel

What it is

This eel has an extremely slender body that can reach 1.5 metres in length while weighing only a few ounces. Its most striking feature is a long, bird-like beak with tips that curve away from each other. Tiny hooked teeth line these jaws, allowing the fish to sweep through water and catch prey. It possesses around 750 vertebrae, more than any other animal. Unusually, its anus is located on its throat due to evolutionary changes.

Where it lives

Adults inhabit the North Atlantic, ranging from the surface down to depths of 4,000 metres. Juveniles have been recorded in the Mediterranean Sea at depths of 100 metres. While adults perform daily vertical migrations, moving up and down the water column, the younger stages do not exhibit this behaviour. The extreme depth and remote nature of their environment make them difficult to study directly.

How it lives

These eels feed on shrimp and other small crustaceans. They use their specialized beaks to comb through the water, trapping prey on their tiny teeth. Many specimens found in museums were not caught directly but were regurgitated by larger predatory fish captured in trawls. This indirect method of collection highlights how rarely they are observed in their natural state. Their lifespan is estimated at ten years.

Breeding and life cycle

Reproduction occurs through spawning, where females release eggs and males release sperm into the water simultaneously. This species is semelparous, meaning it reproduces only once in its lifetime. After spawning, the adult eels die. The larvae look like flat leaves and actually decrease in size before transforming into the familiar adult form. This complex life cycle adds to the scientific challenge of studying them.

Fish and people

Scientists study this fish to understand deep-sea ecosystems, though research is hampered by the difficulty of accessing its habitat. It is not a target for commercial fishing or aquarium trade due to its deep-water lifestyle and fragile nature. Most human knowledge comes from specimens recovered from the stomachs of other fish or rare deep-sea captures. There is no significant cultural or culinary use recorded.

Status and threats

The conservation status of the slender snipe eel is not well known. Data deficiency stems from the challenges of surveying deep-ocean populations. No specific threats such as overfishing or pollution are detailed in available records, likely because the species lives far from typical coastal industrial activities. Further research is needed to assess population health accurately.

Questions people ask about Slender snipe eel

Good reading and sources

• Slender snipe eel on WikipediaEncyclopedia
• More photos on Wikimedia CommonsPhotos
• Wikidata recordOpen data