Ocean Sunfish Could Offer Clues to the ‘Rise of Slime’

This entry was posted in Unexplored on by . [^]

Ocean Sunfish Could Offer Clues to the ‘Rise of Slime’‘The Scientist

Ocean Sunfish Could Offer Clues to the ‘Rise of Slime’

A controversial hypothesis suggests that jellyfish may one day rule the oceans, and Mola mola may tell us if we are approaching a tipping point.

HOLY MOLA: The ocean sunfish can grow to more than two meters in length, with a mass of up to 1,000 kilograms.© ISTOCK.COM/LEOPATRIZI

Off the coast of the French town Banyuls-sur-Mer, dozens of dorsal fins bob up and down in the water. A quick glance may suggest something menacing, but a longer look gives way to an even greater surprise: big, bizarre fish called Mola mola, from the Latin word for millstone. Commonly known as ocean sunfish, these behemoths tip the scales at up to 1,000 kilograms, making them one of the largest bony fishes alive today.

More intriguingly for the researchers who study them, some populations of ocean sunfish seem to be on the rise. “It’s quite striking in the western Mediterranean. I was there diving last spring and there were so many sunfish,” says David Grémillet, an expert on seabirds at the Center for Functional and Evolutionary Ecology in Montpellier, France, who has been fascinated with ocean sunfish since childhood. “People from the diving club there said that in recent years they had never seen that many.”

Not much is known about these ocean giants. Strangely, given their massive size, sunfish appear to subsist on jellyfish—a relatively calorie-poor food. Although they’re not highly sought after for human consumption compared with cod and salmon, their large, slow-moving bodies often get them nabbed as bycatch by fishermen. As a result, the International Union for Conservation of Nature has listed sunfish as vulnerable, making researchers keen to find out how many there are swimming slowly along in the world’s oceans.

Reference

Other things to check out:

Fish Tales: Sunfish catches some sun in PCB

PANAMA CITY BEACH — It was one of those times when you have no idea what you are looking at. 

Staring at it, Patrick Ashley had “no clue what it was.” So he did the logical thing, took a picture and posted it on the Panama City Fishing Facebook Page. 

In a word, the ocean sunfish is “curious” — at least that’s the term NOAA Fisheries went with on their fact page. It’s found in all major oceans, can weigh up to 4,850 pounds and lives on a diet of mostly jellyfish. 

“Somewhere during this long evolutionary history, the mola lost its tail,” the NOAA fact sheet reads. “This does not seem to slow the fish down too much; smaller animals have been seen leaping out of the water. Not having a tail does not hinder their foraging either. Individuals feed primarily on gelatenous zooplankton which themselves are not strong swimmers.” 

Sighting of them are typically infrequent, according to a Florida Fish and Wildlife Conservation video, but two different sightings have been documented in Bay County this week as Victor Lopez also shared a video of one taken by Laguna Beach. Ashley said he spotted the sunfish about four miles offshore while trolling. 

Reference

Don’t dis the Dow Theory just because it’s over 100 years old

Technical ‘sell’ signal speaks to human emotions of fear and greed, which haven’t changed since the Dow Theory was born

Dow Theory is based around the idea that watching how Dow Jones benchmarks behave can provide clues about future market direction. A lot has changed since the theory was formed’the market indexes the theory was originally based on; the drivers of the U.S. economy; and Wall Street rules and regulations, among them’but the primary premise about how people behave when fear and greed take over has not. And it may never change.

At the moment, the Dow Theory indicates the uptrend is still fully in force, but is just one small step away from pivoting to a downtrend.

The theory was based on the assumption that the Dow Jones Industrial Average DJIA, +1.07% ‘and the Dow Jones Transportation Average DJT, +2.05% ‘have a symbiotic relationship, because transportation companies take and deliver what industrial companies make. Although the Dow industrials now include companies that might not be considered makers, and the Dow transports are no longer just takers, they still represent sectors that should be relatively in sync if the economy and broader stock market were moving in tandem.

The Dow Theory is considered ‘technical’ analysis, because you have to monitor numbers on a chart. But it is actually more about behavioral analysis and making sound investment decisions, with the idea being, the best way to make money is ride the trend, not try to beat it.

Reference

Watching: Sunfish Could Offer Clues, Mediterranean. I, Evolutionary Ecology

Comments

[I ate] perfect medium rare steak with some delicious mediterranean roasted vegetables
So with the Carlist Rework coming in 0.6, and additionaly the Mediterranean bloc being removed entirely from the mod, I’ve decided to take it upon myself to fix that.
My 6D took a wave of saltwater while on a boat going in the Mediterranean so I got this…
[A golf course near the Mediterranean coast] …sorry about actually the distance/resolution, I couldn’t get any closer without trespassing
03-29 04:33 – ‘I’m mexican but whether lived abroad in several places. Americans say I’m not white, Europeans say I’m Slavic, slave say I’m Mediterranean, Mediterranean people and middle eastern are confused by my factions and color, Asians and Afr…’ by /u/rav3style removed from /r/history within 28-38min
I’m probably a cis woman who frequently gets ‘misgendered’ – trans (MTF) friend encouraged me to post
Hammy in: ‘I hope your kids have SO’s skin!’ And other racist shit she says.
(SPOILERS) A little theory about the ending of COTP
Gathering food as a vegan, the lazy basement dweller way.
[REVIEW] – French pharmacy for sensitive skin – Avene
Eastern Europeans, how difficult was surely it back in the cold war to move from country to country ?
Spitfire Mk I-V Overheating (it effectivily is not the plane, it’s YOU)
My rehearsal dinner venue canceled on us yesterday…36 days out!! Need help weighing our Plan B options
Which is the odd one out between olive oil, Madeleine McCan, zinc and gold?

In case you’re also interested:

Fish Tales: Sunfish catches some sun in PCB
(since Mar, 2018) Patrick Ashley had “no clue what it was.” So he did the logical thing, took a picture and posted it on the Panama City Fishing Facebook Page. “What in the world is this?” he wrote. “Never seen one before.” The answer was swift: ocean sunfish

Don’t dis the Dow Theory just because it’s over 100 years old
(since Mar, 2018) Dow Theory is based around the idea that watching how Dow Jones benchmarks behave can provide clues about future market direction . no longer comfortable waiting to sell at the prices they offer, and have become scared to the point of selling down

Video