Piglet Squid
Helicocranchia pfefferi
The Piglet Squid is a very small and delicate, transparent squid. It is found at depths between 400 to 1000 m. It has an unique siphon that is used for jet propulsion and it resembles a pig muzzle. The young piglet squids tend to live close to the surface, and steadily migrates downward as they grow. This behavior is called ontogenetic migration.
Photo credit: http://photo.cctv.com/2019/07/23/PHOAKMEBh8xJRaHXEUIGx8kE190723.xml
https://www.ourbreathingplanet.com/banded-piglet-squid/
Squarenose Helmetfish
Scopelogadus beanii
The Squarenose Helmetfish is found between 800m to 4000m in the ocean. It received this unique name due to its scales reminding scientists of an armored helmet worn by medieval knights. It also has unusual holes around its face, and the white strands covering its face are sensory canals.
Photo credit: https://www.vistaalmar.es/especies-marinas/peces-extranos/449-que-peces-mas-extranos.html
Brittle Stars
Asteroschema Ajax
Brittle stars are in the phylum Enchinodermata and are closely related to sea stars. They have long stringy arms and small podia on the bottoms of their body. They also have a hydrostatic skeleton and have a complex water vascular system. When attacked, they will abandon their arm to confuse predators and make a hasty escape. The photo above is a deep sea brittle star that lives in coral reefs.
Photo credit: https://species.wikimedia.org/wiki/Asteroschema_ajax
Threadfin Snailfish
Careproctus longifilis
The Threadfin Snailfish resembles a prehistoric tadpole that is ghostly white. The holes in its face are large sensory pores that help them detect changes in the ocean. It is often found at depths between 1900 to 2997 meters.
Photo credit: https://www.timeout.com/singapore/museums/creatures-of-the-deep
Cigar Comb Jelly
beroe forskalii
The Cigar Comb Jelly is a gelatinous ctenophore that is marveled by many due to its sparkling bioluminescence. It tends to elegantly float around 120 m in the ocean. It uses unique, hair-like structures called ctens to move horizontally in the ocean. It also swims in a spiral pattern before consuming zooplankton in the ocean.
Photo credit: https://www.wrobelphoto.com/gelatinouszooplankton/h25347306
https://www.flickr.com/photos/a_migotto/27227530815
Lav Polyp
leuckartiara octona
The Lav Polypo is a jelly that comes in a variety of colors and shapes; it dwells about 200m in the deep ocean. The red mass inside its translucent bell is the jelly’s reproductive organs. Furthermore, it uses its dull, yellow tentacles can catch unsuspecting prey.
Photo credit: https://www.pinterest.com/pin/65935582019848580/
https://www.petjellyfish.co.uk/shop/live-jellyfish/leuckartiara-octona
Sea sparkle is a common, bioluminescent plankton. Even though its not an animal, it is worth sharing.
Sea sparkle
Noctiluca scintillans
Sea sparkle is a bioluminescent dinoflagellate that blooms in many coastal waters. Sea sparkle feeds on plankton, diatoms, fish eggs, and other dinoflagellates. It also has a flagellum, or tiny tail, that helps it move around in the water. Even though sea sparkle is beautiful to witness at night, it is hazardous to other marine species and resembles a reddish-pink film during the day.
Photo credit:
https://alexandrathemb.tumblr.com/post/49814932878/noctilucas-scintillans-a-bioluminescent
https://thevelv.blogspot.com/2015/07/noctiluca-scintillans.html
Pigbutt worm
Chaetopterus pugaporcinus
The Pigbutt worm or the flying buttocks of the sea is spotted floating between 965 m to 1300 m in the deep ocean. It is actually a polychaete (polly-keet) worm species that burrows in the ground as an adult, and floats around the ocean as a baby. The worm feeds itself : by creating a balloon of mucus; collecting particles on the mucus; and then consuming the particles. It is the rarest and thickest worm in the deep ocean, for only ten have been spotted.
Photocredit: https://roaring.earth/pigbutt-worm/
Scaly Dragonfish
Stomias Boa
The Scaly Dragonfish is about 32cm long and found at depths between 200 to 1500m. The long purple barbel on its chin is used to lure in prey. When the pery gets close enough, it swings its jaws forward swallowing the prey whole.
Photo credit: https://alchetron.com/Stomias
Video on the fish: https://www.youtube.com/watch?time_continue=69&v=9oB_61aI2iQ&feature=emb_title
Predatory Copepod
Paraeuchaeta barbata
Copepods are a type of zooplankton or tiny creature that feeds larger animals in the ocean such as, fish. They are crustaceans that have two long antennas and a sensory eye called an ocelli, which can only sense light. This copepod is located between 200m to 1500 m in the deep ocean. You may notice the copepod is red in color. The color is an adaptation that makes it difficult for predators to see the copepod because red wave lengths do not penetrate this depth (mostly blue and indigo light). Even though this creature tiny, it is a vital food source for many animals in the abyssal zone of the ocean.
Photo credit: http://www.arcodiv.org/watercolumn/copepod/Paraeuchaeta_barbata_large.html
Black Medusa
Vampyrocrossota childressi
The Black Medusa is an inky, black hydrozoan that absorbs all light that hits its tiny body. It has a translucent gelatin and a black umbrella; it is also only 1.5 cm in size. Moreover, it is found at depths between 600m to 1500m, and it spends its entire life floating in the deep ocean.
Photo credit: https://www.pinterest.com/pin/488148047080475827/
Bioluminescence is a chemical reaction that produces light. Many deep sea animals use bioluminescence. This blog is dedicated to educating the public about the amazing creatures that thrive in the deep sea.
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