tunicates

anonymous asked:

Imagine Carlos and cecil on their wedding day and Cecil and Carlos looking fab af, Carlos in a WEDDING LABCOAT, and Cecil in the weirdest dress you've ever seen that seems to be alive

I LOVE HOW WE ALL ACCEPT THAT CECIL IS JUST GONNA WEAR SOME WILD DRESS TO HIS WEDDING NO MATTER WHAT LMAO.

BUT CONSIDER THIS (since I have already accepted the wedding labcoat)

CECIL WEARS THE SAME TUNIC AND FURRY PANTS FROM THE FIRST DATE BECAUSE HE’S LIKE “I already know this is what I wooed him in at the start so clearly  this is the thing to wear” AND HE’S JUST REALLY INFORMAL ABOUT IT AND CHILL WHILE CARLOS IS STRESSED AS FUCK 

Forever21 picks | July 2016

Taj Tunic you need to try it! #Repost @monttricot
・・・
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Inventory is limited, order and get it.

  1. Color Block Floral Polka Dot Stripe Print Lapel Blouse 
  2. Cat Lapel Repeated Cartoon Print Button Down Shirt 
  3. Mono Polka Dot Lapel Dip Hem Long Sleeves Boxy Shirt 
  4. Repeated Whale Print Button Down Lapel Tunic Shirt 
  5. Mono Check Print V-neck Shirt with Long Sleeve 
  6. Fashion Round Neck Striped Chic Blouse 
  7. Floral Batwing Sleeve Beach Loose Blouse Tunic Top 
  8. Floral Batwing Sleeve Beach Loose Blouse Tunic Top

(Photo found here)

That weird blue thing is a pyrosome. Pyrosomes, genus Pyrosoma, are free-floating colonial tunicates (marine filter-feeders, see this post) that live usually in the upper layers of the open ocean in warm seas, although some may be found at greater depths. Pyrosomes are cylindrical or conical shaped colonies made up of hundreds to thousands of individuals, known as zooids. Colonies range in size from less than one centimeter to several meters in length. The individuals that make up this giant, floating, colonial tunicate are only about 1 in (2 cm) long, but the giant pyrosome colony, which resembles a gigantic hollow tube, can be large enough for a person to fit inside. Each individual lies embedded in the wall of the tube, with one end drawing in nutrient-laden water from outside and the other end expelling water and waste inside. The expelled water is used to propel the giant pyrosome colony as a whole. A wave of bioluminescent light travels along the community if it is touched.

(Source)

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A lovely, little Larvacea!

It’s a tunicate that swims through oceans all over the world with their wriggly tail.

They build a structure around themselves known as a house. It’s a mucus thing with all sorts of corridors and nets for filtering out plankton. Then a conveyor belt of mucus brings food right into their mouth.

Once the house gets all clogged up, they abandon it and make a new one. They need to build several houses each day!

It also looks like a jelly baby flying through the air with a huge helmet and a long cape. Because even superheroes are safety-concious.

Video source

(Photo found here)

The predatory tunicate (Megalodicopia hians) is a species of tunicate (see these two previous posts) which lives anchored along the deep sea canyon walls and seafloor, waiting for tiny animals to drift or swim into its hood-shaped mouth. Looking something like a cross between a jellyfish and a Venus Flytrap (see this post), its mouthlike hood is quick to close when a small animal drifts inside. Once the predatory tunicate catches a meal, it keeps its trap shut until it is ready to eat again. They are known to live in the Monterey Canyon at depths of 200–1,000 metres (660–3,300 ft). They mostly eat zooplankton and tiny animals.

(Source)

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Zoological Charts dating back to the 1800’s - Tunicata
The McGregor Museum
University of Auckland [New Zealand], School of Biological Sciences

Comparison of the two tunicate classes Appendicularia and Ascidiacea showing morphological features through-out development. Note that the class Ascidiacea is paraphyletic and has been reclassified as other groups within Tunicata. (McGregor Museum)

Free Floating Sea Squirts
Anatomy of members of the Class Thaliacea
Showing: internal structures through transluscent bodies, variation of individual body plans (1, 3, 4, 6, 7 & 8′) and arrangements of colonies (5 & 10).  (McGregor Museum)

Sedentary Sea Squirts (Ascidians)
The Ascidians are typical tunicates often referred to as sea squirts. . ( McGregor Museum)

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Tunicates

Tunicates are marine filter-feeders with a unique, sac-like body structure. 

In their respiration and feeding they take in water through an incurrent (or inhalant) siphon and expel the filtered water through an excurrent (or exhalant) siphon.

Most adult tunicates are sessile and attached to rocks or similarly suitable surfaces on the ocean floor; others such as salps, doliolids and pyrosomes swim in the pelagic zone as adults.

Various species are commonly known as sea squirts, sea pork or sea tulips.

Tunicates contain a host of potentially useful chemical compounds, including:

  • Didemnins, effective against various types of cancer, as antivirals and immunosuppressants
  • Aplidine, effective against various types of cancer
  • Trabectedin, effective against various types of cancer

Various Ascidiacea species are consumed as food around the world. In Japan and Korea, the sea pineapple (Halocynthia roretzi) is the main species eaten

The use of tunicates as a source of biofuel is being researched. The cellulose body wall can be broken down and converted into ethanol and other parts of the animal are protein-rich and can be converted into fish feed.

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