#fun fish facts

[protectoursharks]

Do salmon have cycloyd or ctocloyd scales?

Salmon have cycloid scales!

[eddieintheocean]

hello! do you have any whale shark/basking shark/megamouth shark facts?

this has been sitting in my inbox for a whole 2 months and i apologise

whale shark:

whale sharks are Fish, the largest fish infact

they have Teeth Eyes (dermal denticles: which are enamel plates that help protect their eyes)

basking shark:

the 2nd largest Fish!

they may display courting rituals! small groups have been seen swimming in circles nose to tail during summer months (these rituals may potentially last for up to 6 hours)

megamouth shark:

it was discovered in 1976, and around 120 specimens have been observed and studied

it was originally assumed that the white band of the megamouth's lip was bioluminescent, however a study in 2020 disproved this, suggesting that it was actually highly reflective due to denticles, and the light was reflected from the planktonic prey

[fisharenotreal]

trick or treat in my inbox for a fun fish fact !

[shastafirecracker]

I just got to see some of these guys at the Mississippi Museum of Natural Science! If I could add a video file to a reblog I would share the filter feeding in action… it was super cool to watch and made me think of the creature design for Jean Jacket from Nope.

Whats the COOLEST fresh water fish you know 🐟🫶

THE COOLEST FW FISH:

There are a lot of really amazing fw fish in the amazon basin, and I love giant catfishes from around the world. I'm based in North America though, so my attention goes there.

We have a pretty cool fish here...

 American Paddlefish (Polyodon spathula), family Polyodontidae, order Acipenseriformes, found in various parts of the Mississippi River basin

This species is the only member of this family that still exists. They are most closely related to sturgeons. This order, Acipenseriformes, is considered one of the most evolutionarily primitive groups of ray finned fishes.

They do not have scales, and their skeleton is mostly cartilaginous.

They are filter feeders. Their heads and rostrums are covered with thousands of sensory receptors, which help them locate zooplankton swarms.

They are considered “vulnerable” due to overfishing, habitat degradation and destruction, and pollution.

photograph via: US Fish & Wildlife Service

[swagvo1d]

[marinememes]

My coworker took a full frontal picture of the arapaima at work and sent this in our group chat

[feelingautistic]

Exciting news for the cute shark lovers of the world! We finally have a recorded sighting of a baby great white shark, likely only a few hours old.

The question of where great white sharks give birth still remains a mystery to this day but this footage may suggest the coasts of California, where the footage was taken, are a site where these sharks give birth.

[arn9tails]

Dunno if someone already responded to this

(also am no professional, am just, a silly lil creature who likes learning so take with your dietary recommendation of salt)

But yes! In fact they drink the water around them, especially if they are salt water fish. Salt water fish are constantly running water through their system. Not entirely beneficial, since the salt also dries them out, even if they are consuming water. This causes them to need to drink nonstop. If you put a salt water fish in fresh water they would drink themselves to death, and if you put a fresh water fish in salt, they'd die from drying out from the salt

(hope I got that right!)

do fish get thirsty? real answers only pls

[froggitonamelon]

They couldn't avoid Captain Undyne forever

[minhtblue]

[colour of your night playing in the bg] a.k.a. i wish you could go fishing

[eggswords]

Sonic and shadow that I drew for a phone background! Feel free to use it just dont steal it please and thanks

Inspo pic:

[protectoursharks]

The shape of a fish's caudal tail can tell you a lot about how fast the fish moves! A rounded tail is the slowest and a lunate tail is the fastest! The lunate tail has the most optimal ratio of high thrust and low draw, making it the fastest.

Ichthyology Notes 2/?

[levanlanse]

♪ It's time for Fish Fact Friday ♪

The opah, also known as moonfish, is a large marine fish, with certain species growing up to 2 meters (6.5 feet) in length!

It is the only known fully warm-blooded fish; some other fish such as tuna and billfishes are able to warm a few parts of their bodies, however the opah is the only fish known to circulate warm blood (heated by their muscle movements) throughout its whole body. This adaptation, in addition to the fatty tissue insulating their bodies, allows them to better swim and hunt in colder waters.

The opah is not truly warm-blooded, however - they are not able to maintain a stable body temperature, and instead keep their bodies a few degrees warmer than the surrounding waters. Still, this is enough to improve its movement in cold waters, helping them to catch prey such as squids and small fish!

[wspider-man]

WHO WANTS TO KNOW ABOUT WEIRD SEA ANIMALS???

1.) Sea Angels

They look like angels but they are predators. They’re a type of sea slug and the muscle that’s common in Gastropods was modified to help them adapt to swimming! They’re also pretty small ranging from 1.2-8.5 centimeters. Their translucent because they are very deep in the sea and the pigmentation found in animals on earth and in the higher waters is just used to protect them from UV rays. But since Sea angels are so deep in the ocean, the sun isn’t visible to them meaning they don’t need pigmentation. That goes for a lot of deep sea animals. They also glow!

2.) Vampire Squid

So Vampire Squids are called vampires because they are so bony and are a deep red color that led to people thinking they suck blood. But they are actually detritivores! This means they eat dead organic matter so they are not as scary as people make them out to be. They have the largest eyes to body ratio of any animal! Vampire Squids are cephalopods, meaning they should have the muscles to change colors, but they don’t! They’re so cool, I love them!

3.) Barreleye Fish

Man are these things fugly, but in a cute way! Like Sea Angels, Barreleye Fish have a translucent head! The strange thing though is that’s it eyes are inside of it. They seems to be humongous but that because, like the Vampire Squid, they live in the deep deep ocean where it’s dark. They need the largest eyes possible to take in the most light! As scary as they look, they only get up to six inches so you have nothing to worry about. (You wouldn’t be that deep in the ocean anyway😒)

Guys if anyone actually enjoys this stuff please tell me cause I would love to make more! These are so fun and I love animals! Especially marine ones. So yeah!🤭

[rhynee]

GUYS

GUYS

SHARKS WILL CURL UP IN BALLS

LOOK

[amnhnyc]

On the hunt for eggs today? The banded jawfish (Opistognathus macrognathus) has a mouthful! Banded jawfish dads-to-be carry eggs in their mouth. This behavior—which helps protect offspring from predators—is known as mouthbrooding. To attract females, males do a “dance” that involves a series of sweeping movements and fin-flashing. They even open their mouths as wide as possible to boast their mouthbrooding potential!

Photo: coralreefdreams, CC BY 4.0, iNaturalist