#FishOfTheWeek
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aquaticenby.bsky.social
I didn't get to do #FishOfTheWeek last week because I was in Poland for field work, but it's gar week this week so of course I have to talk about one of my all-time favorite fishes. And there's a lot know, so get ready to learn something new
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A whole group of gar swimming together. They appear to be longnose gar, with long, skinny snouts and a single row of large spots down their sides. They are likely coming together to spawn
November 7, 2025 at 6:57 PM
austsocfishbiol.bsky.social
Our #FishOfTheWeek this week is… the Eastern Blue Groper (Achoerodus viridis) 🐟

👇More #fishfacts and the latest #research featuring ASFB members:
doi.org/10.1071/MF24...

🌐 Info via Fishes of Australia: fishesofaustralia.net.au

#Australia #fish #biology
November 5, 2025 at 9:30 PM
austsocfishbiol.bsky.social
Our #FishOfTheWeek this week is… the Swordfish (Xiphias gladius) ⚔️🐟

👇More #fishfacts and the latest #research featuring ASFB members:
doi.org/10.1038/s415...

🌐 Info via Fishes of Australia: fishesofaustralia.net.au

#Australia #fish #biology
October 28, 2025 at 9:30 PM
aquaticenby.bsky.social
It's Friday, which means it's time for another #FishOfTheWeek! And today we're actually gonna talk about plankton. When most people think of plankton they think of algae, maybe bacteria. But plankton can be any organism unable to control their own movement in water (or air)
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A micrograph image of plankton. There are protists, algae, crustaceans, and others in this mix
October 24, 2025 at 9:31 AM
austsocfishbiol.bsky.social
Our #FishOfTheWeek this week is… the Eastern Bluespot Goby (Pseudogobius eos) 🐟

👇Latest #research featuring ASFB members:
doi.org/10.11646/zoo...

🌐 More #fishfacts via Fishes of Australia: fishesofaustralia.net.au

#Australia #fish #biology
October 21, 2025 at 9:30 PM
aquaticenby.bsky.social
I forgot to post a #FishOfTheWeek yesterday because I was enjoying the new wine festival, but I've got a great one to make up for it. Meet the longest fish in the world at up to 30 feet long, the giant oarfish. This fish inhabits the least explored part of our world, and we know little about it
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A split image of oarfish. The top is an old photo of an oarfish that washed ashore being held by at least 16 men, illustrating its length. The bottom image is an artistic rendering of what this fish looks like. It is long with a silvery body and dark speckles. It has a bright red dorsal fin that runs its entire length and has long, extended rays at the head and on the pelvic fins
October 18, 2025 at 4:48 PM
aquaticenby.bsky.social
I think we all know by now that deep sea fish hold the patent on weird. But for this #FishOfTheWeek let's talk about some deep sea fish that decided they needed weird eyes, of all things. The binocular fish is quite appropriately named
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A face-on view of a binocular fish. It looks terrified except its many needle-sharp teeth assure you its doing the terrifying
October 10, 2025 at 3:20 PM
austsocfishbiol.bsky.social
Our #FishOfTheWeek this week is… the Sea Mullet (Mugil cephalus) 🐟

👇More #fishfacts and the latest #research featuring ASFB members:
doi.org/10.1016/j.ec...

🌐 Info via Fishes of Australia: fishesofaustralia.net.au

#Australia #fish #biology
October 8, 2025 at 9:30 PM
aquaticenby.bsky.social
Fish that live in the open ocean all face the problem of water temperatures being cold, sometimes extremely so. This is an even bigger issue if you're a predator trying to chase down prey. So what's a cold-blooded fish to do? Let's talk about 1 solution for #FishOfTheWeek, gigantothermy
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A whale shark swimming in the open ocean. It is a beautiful gray color with a unique pattern of white stripes and dots. The patterns are as unique as human fingerprints!
October 3, 2025 at 2:46 PM
austsocfishbiol.bsky.social
Our #FishOfTheWeek this week is… the Southern Pygmy Perch (Nannoperca australis) 🐟

👇More #fishfacts and the latest #research featuring ASFB members:
doi.org/10.1111/aec....

🌐 Info via Fishes of Australia: fishesofaustralia.net.au

#Australia #fish #biology
September 30, 2025 at 10:30 PM
aquaticenby.bsky.social
If you live in the Northern Hemisphere you are likely aware of at least one species in the family I want to talk about for today's #FishOfTheWeek. The Percidae family is found in both North America and Europe and contains the well-known perch and walleye
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A pair of yellow perch. They are yellow-green with dark bands running vertically down their bodies and orange pelvic fins
September 26, 2025 at 11:35 AM
austsocfishbiol.bsky.social
Our #FishOfTheWeek this week is… the Great Hammerhead (Sphyrna mokarran) 🐟

👇More #fishfacts and the latest #research featuring ASFB members:
doi.org/10.3389/fmar...

🌐 Info via Fishes of Australia: fishesofaustralia.net.au

#Australia #fish #biology
September 23, 2025 at 8:30 PM
aquaticenby.bsky.social
I've always said there is a fish to fit every category and aesthetic. And to prove that, I'm going to talk about the range of sizes fish come in for this #FishOfTheWeek. From the teeny tiniest to the mind-boggling biggest. Let's start small with the smallest fish species we know of
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The stout infantfish, one of the smallest in the world. It is mostly clear with a purple nose and eyes and yellow/green internal organs A basking shark, one of the largest fish in the world. It has its large mouth open to filter tiny plankton out of the water as it swims
September 19, 2025 at 8:55 AM
austsocfishbiol.bsky.social
Our #FishOfTheWeek this week is… the Greybanded Grouper (Hyporthodus griseofasciatus) 🐟

👇More #fishfacts and the latest #research featuring ASFB members:
doi.org/10.1111/jfb....

🌐 Info via Fishes of Australia: fishesofaustralia.net.au

#Australia #fish #biology
September 16, 2025 at 8:30 PM
aquaticenby.bsky.social
I like to think that I know quite a bit about fish at this point, but I am forever reminded that when it comes to fish, you can never know everything. So for today's #FishOfTheWeek let's talk about a reproductive strategy that I spent an entire day studying when I did learn about it
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A meme of a person asking "Okay, was anybody going to tell me that anglerfishes with sexual parasitism yeeted their immune system or was I just supposed to stumble upon that myself?"
September 12, 2025 at 9:52 AM
austsocfishbiol.bsky.social
Our #FishOfTheWeek this week is… the Australian Sardine (Sardinops sagax) 🐟

👇More #fishfacts and the latest #research featuring ASFB members:
doi.org/10.1016/j.ma...

🌐 Info via Fishes of Australia: fishesofaustralia.net.au

#Australia #fish #biology
September 9, 2025 at 8:30 PM
austsocfishbiol.bsky.social
Our #FishOfTheWeek this week is… the Pacific Blue Eye (Pseudomugil signifer) 🐟

👇More #fishfacts and the latest #research featuring ASFB members:
zoobank.org/urn:lsid:zoo...

🌐 Info via Fishes of Australia: fishesofaustralia.net.au

#Australia #fish #biology
September 2, 2025 at 8:30 PM
aquaticenby.bsky.social
Today's #FishOfTheWeek is a group of fishes found in North America that many of you likely don't even know exist. And that's a tragedy because they're awesome and gorgeous and ecologically important. And you should know them. I'm talking about darters, of course!
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A banded darter I caught during surveys on the Buffalo River in Arkansas. This male is dressed up in his finest bright green breeding colors to attract all the females he can
August 29, 2025 at 3:40 PM
austsocfishbiol.bsky.social
Our #FishOfTheWeek this week is… the Port Jackson Shark (Heterodontus portusjacksoni) 🐟

👇More #fishfacts and the latest #research featuring ASFB members:
doi.org/10.1016/j.ma...

🌐 Info via Fishes of Australia: fishesofaustralia.net.au

#Australia #fish #biology
August 26, 2025 at 8:30 PM
aquaticenby.bsky.social
Genderfluid people switch their gender on a regular basis, and some of them are masters at it. Unfortunately, changing our physical gender is often much more complicated. But for some fish, switching sexes is much easier. For today's #FishOfTheWeek, let's talk about bidirectional hermaphrodites
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A green reef goby with an intricate pattern of red dots and stripes all over its body. It's rather short and chubby with a large head, indicative of its largely sedentary lifestyle
August 22, 2025 at 2:53 PM
aquaticenby.bsky.social
I'm a day late for #FishOfTheWeek because I was driving all day, but I'm gonna make up for it with a really neat fish. These guys make their own sleeping bag, have funky teeth, are extremely colorful, and help to make the sandy beaches we flock to in summer. So let's talk about parrotfish!
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A beautiful parrotfish with a turquoise head, bright pink tail, and turquoise scales edged in bright pink on its body
August 16, 2025 at 1:02 PM
austsocfishbiol.bsky.social
Our #FishOfTheWeek this week is… the Barramundi (Lates calcarifer) 🐟

👇More #fishfacts and the latest #research featuring ASFB members:
doi.org/10.1111/1365...

🌐 Info via Fishes of Australia: fishesofaustralia.net.au

#Australia #fish #biology
August 12, 2025 at 8:30 PM
aquaticenby.bsky.social
Fish art on theme for #FishOfTheWeek!

You can't tell me this isn't absolutely awesome
zubzub.bsky.social ZubZub @zubzub.bsky.social · Aug 9
Here, have my digitized fangfish CT scan as a little treat:
(It’s also red)
A red embroidered image of a scanned fang fish, a deep sea dweller that looks like an anglerfish.
August 9, 2025 at 1:32 AM
aquaticenby.bsky.social
It's no secret that deep sea fish are terrifying. I mean, look at this guy. He's clearly straight out of someone's nightmare. But have you ever wondered why so many deep sea fish are red? Like, what's the deal with that? Turns out, I'm gonna make you learn some physics for #FishOfTheWeek
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A deep sea fish straight out of nightmares. He looks almost skeletal, with small, sunken black eyes and extremely long, needle-like teeth. He is entirely red, even his teeth
August 8, 2025 at 5:10 PM
austsocfishbiol.bsky.social
Our #FishOfTheWeek this week is… the Agassiz's Glassfish (Ambassis agassizii) 🐟

👇More #fishfacts and the latest #research featuring ASFB members:
doi.org/10.1071/MF25...

🌐 Info via Fishes of Australia: fishesofaustralia.net.au

#Australia #fish #biology
August 5, 2025 at 8:30 PM