There were a lot of freshwater mussels on the 2021 US extinction list. They didn’t leave us with haunting recordings of them calling out for a mate they’d never meet, there were no drawings in vivid color. They were extremely important nevertheless and their loss is frustrating too. That’s why stream ecology and mollusks have always fascinated me. They were silent, stalwart little heroes and entire species were lost to pollution.
Mark Oliver Everett, Things the Grandchildren Should Know
hey everyone, happy friday and welcome back to another excellent episode of Weird Biology!
this week, we’re examining a charismatic and almost perfect oceanic killing machine! you might be picturing a shark, but you’re wrong.
it’s the flamboyant, fantastic, and fucking ecological nightmare, the
NAAAAAANTS INGONYAAAAMAA
Lionfish are a group of 12 species in the genus Pterois (tare-oh-eese), meaning “winged”. these fish are among the most striking and beautiful in the ocean! they’re also full of poison knives, but more on that later.
also called Dragonfish, Firefish, Turkeyfish, Tastyfish or PEZ DIABLO (Devilfish, or “underwater satan” if you use Google Translate), Lionfish are native to the Southern Pacific and Indian oceans. they are mostly found on coral reefs, where they can grow up to 17 inches long and reach about 3 pounds.
3 pounds of pure whoopass.
small but mighty! SMALL BUT MIGHTY!
see, when it comes to sheer badass ability to survive anywhere, Lionfish are damn near perfect. most reef fish are specialized creatures with a fairly low set of tolerances. not Lionfish! for starters, they’re common in every level of the water column up to 1000 feet down. that’s impressive for a regular fish, let alone a reef specialist. they can also tolerate temperatures as low as 60 F, which again, fucking ridiculous. this fish could probably survive on the moon.
on top of that, their reproductive rate is insane. unlike many reef fish who follow a yearly cycle, Lionfish reproduce monthly. and every month a female Lionfish may lay- wait for it- 15,000 eggs. add in the fact that they have maybe three natural predators and it’s a wonder we aren’t knee deep in them right now.
good news! the Lionfish will submerge us before the oceans do!
Lionfish may look like delicate lacy parasols, but that bold coloration is actually Nature’s equivalent of wearing a bright orange hazard vest! but if we’re doing a direct comparison, in the Lionfish’s case it’s more like the equivalent of wearing a bright orange hazard vest while standing on the roof of a burned-out van, waving a submachine gun at traffic.
see, those lacy fins are are concealing dozens and dozens of long, razor-sharp spines venomous enough to incapacitate a human. any predator unwary enough to get a mouthful of the Lionfish’s poison shiv collection will experience immediate debilitating pain, paralysis, and almost certain death. (this venom isn’t strong enough to kill a healthy adult, but it really fucking sucks and can floor you for at least a day. do not touch.)
it’s time to play our favorite biology game, How Many Poison Knives Is This Animal Packing? if you guess wrong, you die.
Lionfish are voracious eating machines, in addition to being basically a floating wedding dress full of poison ice picks. they feed on fish, invertebrates, mollusks, and smaller Lionfish. these flamboyant cannibals feed by disorienting their prey with a jet of water, and then swallowing it headfirst like a Hardees breakfast sandwich.
and they’ll cram as many fish/shrimp/members of their own species into that ravenous maw as possible- a Lionfish’s stomach can expand to 30 times its original size on a binge! and in lean times, the Lionfish can slow its metabolism to a literal crawl. they can survive a three-month fast and lose only 10% of their body weight. jesus.
can anything stop these frilly nightmares?
SPOILER ALERT: no.
the question is unfortunately relevant. in 1992, Hurricane Andrew struck South Florida and demolished a public aquarium. Florida had bigger things to worry about, so nobody noticed that six Lionfish had been tragically swept out to sea. in the complete absence of natural predators, those six Free-Willied Lionfish (plus many others released from the pet trade) have become MILLIONS.
Lionfish have launched a hostile invasion of Carribean waters, and are now found from the Gulf Coast to North Carolina. this is a big fucking problem.
and that’s no joke.
apart from how dangerous they are, the Lionfish’s natural fish superiority allows it to easily outcompete meek and innocent native fish. this is putting stress on invaded reef ecosystems, and the problem is only getting worse as Lionfish continue to spread further north. Lionfish are even learning to tolerate mildly brackish water and have been found in estuaries four miles from the fucking ocean.
at this rate, we’re all going to wake up and find a Lionfish in our beds.
it’s their bed now. accept your inferiority before Earth’s true dominant species.
the fate of these oceans rests on the questionable shoulders of the Lionfish’s only (un)natural predator:
you.
the only current way to slow their spread is to just eat the absolute hell out of them. that’s right, Lionfish are edible. and not just that, they’re completely fucking delicious and heart-healthy! they’re called Tastyfish for a reason. and for all their prowess, Lionfish have yet to evolve a defense for projectile weapons. (that’s what happens when you put all your skill points into Melee, Lionfish.)
and remember: eating a Lionfish is taking part in the front lines of a battle for the future of your oceans. also, they’re just delicious.
so do your part, and eat up!
–
thanks for reading! you can find the rest of the Weird Biology series here.
if you enjoy my work, maybe buy me a coffee to support Weird Biology.
–
IMAGE SOURCES
img1- Pensecola News Journal img2- Oceanea.org img3- Wikipedia img4- Don Johnson img5- Hakai Magazine img6- Florida Keys Treasures img7- CNN img8- dmagazine.com
hey bunjy, would you happen to have any cursed (or blessed) facts about hummingbirds? saw one in my garden yesterday and they've been on my mind
contrary to popular belief, hummingbirds can open their beak all the way just like other birds can!
it's...
hm.
I don't wike it :(
Squeaky leopard cubs. (via TheBigCatSanct) [press play to here cubs squeak]
Plop
(via)
my fave thing about alligators is that evolution was just like.. “yeah that’s fine” and left them for 80 million years