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astronomy-to-zoology:

Spotted Garden Eel  (Heteroconger hassi)
is a small species of conger eel found in shallowish Indo-Pacific waters. This species is widely known for its burrows, as large groups of up to a few thousand eels will burrow into the bottom of a reef or coral cluster and sit in their small sandy homes with their mouths pointed towards the current in the hopes of catching any zooplankton that may swim by.
Phylogeny
Animalia-Chordata-Actinopterygii-Anguilliformes-Congridae-Heteroconger-hassi
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astronomy-to-zoology:

Spotted Garden Eel  (Heteroconger hassi)
is a small species of conger eel found in shallowish Indo-Pacific waters. This species is widely known for its burrows, as large groups of up to a few thousand eels will burrow into the bottom of a reef or coral cluster and sit in their small sandy homes with their mouths pointed towards the current in the hopes of catching any zooplankton that may swim by.
Phylogeny
Animalia-Chordata-Actinopterygii-Anguilliformes-Congridae-Heteroconger-hassi
Source, Source
Zoom Info

astronomy-to-zoology:

Spotted Garden Eel  (Heteroconger hassi)

is a small species of conger eel found in shallowish Indo-Pacific waters. This species is widely known for its burrows, as large groups of up to a few thousand eels will burrow into the bottom of a reef or coral cluster and sit in their small sandy homes with their mouths pointed towards the current in the hopes of catching any zooplankton that may swim by.

Phylogeny

Animalia-Chordata-Actinopterygii-Anguilliformes-Congridae-Heteroconger-hassi

Source, Source

rhamphotheca:

MIGRATORY FISHES

Diadromous fish:  Truly migratory fishes which migrate between the sea and fresh water.

  • Anadromous: Diadromous fishes which spend most of their lives in the sea and migrate to fresh water to breed.  (ex: Salmon)
  • Catadromous: Diadromous fishes which spend most of their lives in fresh water and migrate to the sea to breed.  (ex: American Eel)

Potamodromous: Truly migratory fishes whose migrations occur wholly within freshwater.  (ex: some populations of Alewife, Brown Trout, and species of Amazonian catfish)

Oceanodromous:  Truly migratory fishes which live and migrate completely in the sea.  (ex: Tuna)

(via: Wikipedia)

(photos: T - spawning Sockeye Salmon by TheInterior; B - American Eel by Claude Nozeres, World Register of Marine Species; Alewife via The Nature Conservancy)

rhamphotheca:

animalworld:SLENDER SNIPE EEL - Nemichthys scolopacus
©
Neumann, V. eel in larvae stage: found in Portugal

Okay here’s an odd duck, I mean eel, no make that fish…

The slender snipe eel, sometimes referred to as the deep sea duck, is a fish that can weigh only a few ounces, yet reach 5 feet (1.5 m in length).

Features include:

  • a bird-like beak with curving tips, covered with tiny hooked teeth, which they use to sweep through the water to catch shrimp and other crustaceans.
  • A lifespan of ten years.
  • More vertebrae than any other animal, around 750.
  • Its anus has moved forward during its evolution and is now located on its throat. [What?!!]
  • Its larvae are shaped like leaves, they actually get smaller before transforming into adults.
  • Many specimens found in museums were spat up from larger fish that were caught in trawls. [Nice!}

Fact Source: http://en.wikipedia.org/wiki/Slender_snipe_eel

Other strange animal photos you may like:

Pompeii Worm (lives in the scalding water of the deep sea vents)

Solar Powered Sea Slug - creates its own solar power

Carpet Worm - breaking down the carcasses of dead whales

rhamphotheca:

Newly Discovered Volcanic Sea Vents Crawling with Creatures

by Ker Than

Smoke-like columns of mineral-rich water rise from a hydrothermal vent—one of ten active volcanic vents recently discovered in the Gulf of California, the long, narrow body of water between Baja California and mainland Mexico.

The vents are the first to be found in the region despite many years of searching. Scientists had suspected active vents existed in the gulf, due to the region’s volcanic activity, but until now they’d been hard to track down.

The new “black smokers” were found using sonar-equipped robotic submarines, which were deployed during the last leg of a three-month expedition by California’s Monterey Bay Aquarium Research Institute (MBARI). The team has been using sonar vehicles to successfully locate new vents in the northeastern Pacific since 2006.

On the latest excursion, sonar maps of the seafloor revealed the tell-tale structures of vent chimneys, showing the team just where to send its remotely operated vehicles (ROVs)…

(read more: National Geo)       (photos: MBARI)

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