What Are Pyrosomes? ~ Strange Creatures of the Sea
Pyrosomes, genus Pyrosoma, are free-floating colonial tunicates 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 cone-shaped colonies made up of hundreds to thousands of individuals, known as zooids. Colonies range in size from less than one centimeter to several metres in length. They are commonly called "sea pickles".
Each zooid is a few millimetres in size, but is embedded in a common gelatinous tunic that joins all of the individuals.[1] Each zooid opens both to the inside and outside of the "tube", drawing in ocean water from the outside to its internal filtering mesh called the branchial basket, extracting the microscopic plant cells on which it feeds, and then expelling the filtered water to the inside of the cylinder of the colony. The colony is bumpy on the outside, each bump representing a single zooid, but nearly smooth, though perforated with holes for each zooid, on the inside.
Pyrosomes are planktonic, which means their movements are largely controlled by currents, tides, and waves in the oceans. On a smaller scale, however, each colony can move itself slowly by the process of jet propulsion, created by the coordinated beating of cilia in the branchial baskets of all the zooids, which also create feeding currents.
Pyrosomes are brightly bioluminescent, flashing a pale blue-green light that can be seen for many tens of metres. The name Pyrosoma comes from the Greek (pyro = "fire", soma = "body"). Pyrosomes are closely related to salps, and are sometimes called "fire salps". Sailors on the ocean occasionally observe calm seas containing many pyrosomes, all luminescing on a dark night.
Music: Bottom of the Sea (Instrumental Version) by Dhruva Aliman
Amazon- https://amzn.to/3dgKA52
https://music.apple.com/us/artist/dhruva-aliman/363563637
https://dhruvaaliman.bandcamp.com/album/hard-to-get-along
http://www.dhruvaaliman.com/
Spotify - https://open.spotify.com/artist/5XiFCr9iBKE6Cupltgnlet
-
DVR
Josh Pate's College Football Show
4 hours agoWeek 5 Upset Alerts | UGA vs Bama Impact | Failed Bold Predictions | Best Bets & Cole Cubelic Joins
3.65K1 -
59:08
The StoneZONE with Roger Stone
4 hours agoSanctuary City Advocate / NYC Mayor Eric Adams Goes Down - With Fmr NYPD Sal Greco | The StoneZONE
9.43K2 -
LIVE
Tundra Gaming Live
4 hours agoThe Worlds Worst Horror Streamer Has Heart Attack Playing Phasmophobia
414 watching -
1:01:08
The Black and Jewish Podcast with Ashira Solomon
5 hours agoEp. 9 The Educated Don't Want to Hang Out With The Uneducated with Senator Rosalind Osgood
15.3K8 -
DVR
Robert Gouveia
4 hours agoLeticia's $493 Million in TROUBLE! Trump EXONERATED by Milley; First Assassination Hearing
28.2K29 -
2:07:56
ThatStarWarsGirl
2 hours agoTSWG LIVE: Rings of Power Lost It's MIND | Ghost of Yotei DRAMA| The Acolyte Laundering and more!
16.6K1 -
53:49
The Big Mig™
23 hours ago‘United We Stand, Divided We Fall’ w/ Col. Douglas MacGregor
32.3K9 -
1:00:50
theDaily302
12 hours agoThe Daily 302 -JJ Carrell
13.1K -
LIVE
RaikenNight
4 hours agoNew Update lets check it out! | Space Marines 2
356 watching -
1:54:09
Right Side Broadcasting Network
6 hours agoLIVE: President Trump Holds a Press Conference at Trump Tower in New York - 9/26/24
131K83