marine life

WTF Fun Fact 13470 – An Underwater Concert

Would you attend an underwater concert off the Florida coast? It certainly sounds unique.

The Florida Keys hosts an annual Underwater Music Festival. Hundreds of divers and snorkelers dive into the ocean to listen to an underwater concert advocating for coral reef protection.

An Underwater Concert for Conservation

The Lower Keys Underwater Music Festival, primarily focuses on promoting eco-conscious diving. It takes place at Looe Key Reef, a region of the Florida Keys National Marine Sanctuary. This is situated around 6 miles (10 kilometers) south of Big Pine Key. The sanctuary, established in 1990, spans a whopping 3,800 square miles (9,800 square kilometers). As a result, it protects the expansive barrier reef running parallel to the 125-mile-long (201-kilometer-long) island chain.

Participants of this unique festival are treated to a breathtaking view of Looe Key’s vibrant marine life and coral formations. They swim amongst the oceanic beauty, all while listening to an aquatic-themed playlist broadcasted under the sea. A local radio station pipes the music underwater through waterproof speakers suspended beneath boats stationed above the reef.

Playlist of the Deep

The festival’s curated playlist is a collection of carefully selected water-themed songs. During the concert, classics such as the Beatles’ “Yellow Submarine,” Jimmy Buffett’s “Fins,” and the theme from Disney’s “The Little Mermaid” echo through the water. These tunes punctuate the silence of the sea, interspersed with informative diver awareness messages. The goal is to provide a fun and engaging way to educate attendees on the steps they can take to minimize environmental impacts on the world’s coral reefs.

The ocean becomes a stage where costumed “mermaids” and other characters add visual flair to the concert. The resulting spectacle combines education with entertainment, set against the unique backdrop of the continental United States’ only living coral barrier reef.

Local radio station 104.1 FM and the Lower Keys Chamber of Commerce organize the four-hour musical extravaganza. So, it’s clear their commitment to conservation and creativity is the driving force behind this immersive, educational, and eco-friendly event.

— WTF fun facts

Source: “Underwater music show in the Florida Keys promotes awareness of coral reef protection” — Associated Press

WTF Fun Fact 12831 – Sea Sponges Sneeze and Squeeze

It turns out sea sponges get full of mucus and other gunk (which we’re sure there’s a technical name for). And to get rid of this waste, they perform one of the most ancient ways to get rid of waste – that is, sea sponges sneeze to squeeze out the gunk,

Not exactly appetizing, but they aren’t really built in a way to do anything more complex.

Sea sponge sneezing

According to ScienceDaily (cited below), “A group of researchers found that sponges, one of the oldest multicellular organisms in existence, ‘sneeze’ to unclog their internal filter systems that they use to capture nutrients from the water.”

That’s not a super smooth move, but nearby creatures don’t mind – they eat the waste.

But this sneeze is nothing like a human sneeze – in fact, it takes about half an hour to complete.

“Our data suggest that sneezing is an adaptation that sponges evolved to keep themselves clean,” marine biologist Jasper de Goeij told the publication.

Blowing out the waste

Even though our sneezes aren’t the same, they do serve the same purpose – trying to get waste out of our bodies.

Here’s how it works for sponges:

“Sponges gather food for themselves by filtering out organic matter from the water. They draw in and eject water from different openings, and sometimes the sponges will suck in particles that are too big. ‘These are sponges; they can’t just walk to somewhere else when the water around them gets too dirty for them to handle,” said de Goeij.”

When sponge tissues contract, they push waste-containing mucus into the water surrounding them.

Munching on mucus

What the sponges “sneeze” out doesn’t simply all sink to the bottom of the ocean floor. Apparently, that mucus is a prime snack food for other creatures.

“We also observed fish and other animals feeding off of the sponge mucus as food,” says Niklas Kornder, a doctoral researcher in de Goeij’s research group said. “Some organic matter exists in the water surrounding the coral reef, but most of it is not concentrated enough for other animals to eat. Sponges transform this material into eatable mucus.”

While marine biologists believe most sponges sneeze, they’ve only witnessed it in the Caribbean tube sponge (Aplysina archeri) and an Indo-Pacific species of the genus Chelonaplysilla.

While the underwater snot-eating isn’t the most appetizing thing to think about, it does raise some questions for the researchers:

“In the videos, you can see that the mucus moves along defined paths on the surface of the sponge before accumulating. I have some hypotheses, but more analysis is needed to find out what is happening,” says Kornder. – WTF fun facts

Source: “Sponges ‘sneeze’ to dispose of waste” — ScienceDaily