The Blue Planet - Blog Posts

Googly-eyed glass squid

Teuthowenia pellucida

The Googly eyed squid is a rare oddity that is found in the southern hemisphere. It has a large, spherical head that is filled with water and teeny, tiny tentacles that help propel it through the water. If it comes across a predator, it deflates its head and draws its tentacles into its cavity. On the other hand, it may also fill the cavity with water to increase its size, and intimidate the predator. If all fails, it will ink and try to escape through the darkness. Furthermore, baby squids can be found at the surface (0-600m); then slowly migrate downwards as they mature into adults (1600-2500m). 

Photo credit: http://animaladay.blogspot.com/2011/07/googly-eyed-glass-squid.html

https://faunafabula.tumblr.com/post/5999675353/googly-eyed-glass-squid-teuthowenia-pellucida

Jewel Squid

Histioteuthis heteropsis

The Jewel Squid is covered in color-changing photophores that resemble sparkling gem stones. They also have a light-red coloration and are about 20 cm in length. They display a unique behavioral adaptation called diel migration. During the day, they stay at depths around 400-1200 m, and then surface during night (0-400m). This behavioral pattern is designed maximize feeding at night, and avoid predators during the day. The primary predator of the Jewel Squid is the Sperm Whale.    

Photo credit: https://www.pinterest.com/pin/722827808920240115/

https://twitter.com/theoctonation/status/1168516522270253056

Pink Helmet

Aglantha digitale

The Pink Helmet is a mini hydromedusa that comes in a variety of vibrant colors. The tiny jelly is only 4 cm in size and is found towards the surface of the ocean. The purple and blue hues we see in its bell are caused by a phenomenon known as iridescence, when light strikes the jelly’s thin tissue at different angles  (similar to what we see in a soap bubbles). It also has orange pigmentation near its mouth; this pigmentation helps attract prey and mask luminescence. Furthermore, females tend to be more colorful than males.

Photo  credit:    https://biolum.eemb.ucsb.edu/organism/pictures/aglantha.html

 https://www.pinterest.com/pin/186899453255850798/

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/

Giant Bell Jelly

Scrippsia pacifica

The Giant Belly Jelly has 256 tentacles attached to a gelatinous bell-shaped base. Like most cnidarians, the Giant Belly Jelly uses specialized stinging cells called nematocysts to catch its prey. When fish and other prey swim into its tentacles, the sensory projection on the cnidocyte (cell that holds the nematocysts) is activated. Then the nematocysts and barb are released, hitting the vulnerable prey and releasing a toxin into the prey’s body. The Giant Bell Jelly is found at 400 m in the ocean. It is related to the jellyfish, but it is categorized as a Hydrozoa (similar to the Portuguese- man-o-war)

https://vimeo.com/42551565

Photo Credit: https://www.pinterest.cl/pin/467107792572034837/

https://courses.lumenlearning.com/ivytech-bio1-1/chapter/phylum-cnidaria/

Sea Angel

Cliopsis krohni

The Sea Angel is a tiny snail that is only 4 cm in length and found at depths as deep as 1500 m. Even though it is small, it is a viscous predator. It hunts other midwater snails using a structure called a radula. Unlike other snails, the Sea Angel’s mouth is located on top of its head. It also uses swimming “wings” to propel through the water. 

Photo Source: http://seaslugsofhawaii.com/species/Cliopsis-krohni-a.html

Pacific Viperfish

Chauliodus macouni

The Pacific Viperfish looks intimidating with its sharp, pointy teeth and large jaws. However, its body is small and elongated. It can be found at depths ranging from 250m to 4390m. The Pacific Viperfish long teeth are an unique adaptation designed to keep prey trapped, but it is dangerously close to its eyes. There have been instances when they have caught prey that are too large to swallow and it dies along with its last meal. The Pacific Viper also has photophores along its body and a light organ near its dorsal fin. These organs exhibit bioluminescence and help with attracting pray: as well as, communicating with mates and confuse predators. It is one of the most ferocious predators of the deep ocean. 

Photo credit: https://www.science-rumors.com/top-20-pacific-viperfish-facts-to-know-what-this-creature-is/

 https://goldfisho.com/everything-you-need-to-know-about-viperfish/

Glowing sucker octopus

Stauroteuthis syrtensis

The Glowing Sucker Octopus can be found at 2500 m in the deep ocean. This unique creature has two fins that look similar to elephant ears. They move elegantly through the water by moving these fins and contracting their mantle. Evidence of this creature has only been spotted in the Atlantic Ocean.

Photo credit: https://octolab.tv/species/glowing-sucker-octopus/

https://ferrebeekeeper.wordpress.com/2011/03/14/glowing-sucker-octopus/