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Most eels live in the shallow waters of the ocean and burrow into sand, mud, or amongst rocks. Most eel species are nocturnal, and thus are rarely seen. Sometimes, they are seen living together in holes or "eel pits". Some eels also live in deeper water on the continental shelves and over the slopes deep as 4,000 m (13,000 ft).
Snipe eels are a family, Nemichthyidae, of eels that consists of nine species in three genera. They are pelagic fishes, found in every ocean, mostly at depths of 300–600 m (980–1,970 ft) but sometimes as deep as 4,000 m (13,000 ft).
These species range in total length from 5 cm (2.0 in) to 2.3 m (7.5 ft) or more. Many species lack fins altogether, improving their ability to burrow into the substrate like worms. They are often spotted or striped in colour, mimicking the appearance of venomous sea snakes to deter predators. [4] Often, they are washed ashore by large storms.
This is an accepted version of this page This is the latest accepted revision, reviewed on 23 December 2024. Species of fish American eel Conservation status Endangered (IUCN 3.1) Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Anguilliformes Family: Anguillidae Genus: Anguilla Species: A. rostrata Binomial name Anguilla rostrata ...
[23] [24] As open ocean voyagers, eels need the carrying capacity of the swimbladder (which makes up 3–6% of the eel's body weight) to cross the ocean on stored energy alone. Because the eels are catadromous (living in fresh water but spawning in the sea), dams and other river obstructions can block their ability to reach inland feeding grounds.
Raitt's sand eel (Ammodytes marinus), is a small semi-pelagic ray-finned fish found in the North Atlantic Ocean. [ 1 ] [ 2 ] The Raitt's sand eel is member of the family Ammodytidae which includes all 31 species of sand eels , often referred to as sand lances . [ 3 ]
Temperate eels migrate on average for approximately 6–10 months, while tropical eels undergo shorter migrations between approximately 3–5 months on average. [23] The European eel ( A. anguillidae ) has one of the longest migrations of all freshwater eels, migrating up to 6000 km (over 3700 miles) in a single migration loop.
Most of the fish in this group are deep-dwelling and rarely seen, typically known from only a handful of specimens. Species include recognizable fish such as pelican eels (also commonly known as gulper eels) and bobtail eels. Some can live deep in the ocean, well into the aphotic zone, approximately 500 to 1,800 meters (1,600 to 5,900 ft) deep.