#siberian sturgeon

ATLANTIC STURGEON AT MARETARIUM!!!!!! THIS IS NOT A DRILL!!!!!!!! She is only 70 cm long and was very recently obtained!!!!!!! Baby!!!!!!!!

I’M GONNA BE SEEING A STURGEON IRL FOR THE FIRST TIME IN LESS THAN 24 HOURS AHHHHHHHHH

I thought it would be fun to draw some fish I like in proper scale to one another. You never really put two and two together about the absolute sizes of some animals until you see them compared to other things! I’ve already done four off the top of my head: An Atlantic sturgeon that’s 3 meters long (modern Atlantic sturgeons rarely reach sizes over 2.4 m, but historically they could be up to 4 meters. I settled on an in between length), a northern pike that’s 120 cm long (upper estimate), a Siberian sturgeon that’s 2 meters long (absolute max size), and a neon tetra that’s 3 cm long (average length)! If you need help seeing the neon tetra, here’s it is with the Atlantic sturgeon:

Siberian sturgeon ( Acipenser baerii ) © rmk2112

Siberian sturgeon ( Acipenser baerii ) © Hannes Klostermann

Trick or sturgeon

S T U R G E O N ! Maretarium Baltic Sea tank in February, featuring both Russian and Siberian sturgeons

Went to an aquarium in France the other day and saw this funky little guy. It's a Siberian sturgeon I'm pretty sure, but I know practically next to nothing about them. Any cool facts about them worth sharing? (Sorry for the blurry pics btw, he just kept swimming and didn't want to stop for a picture haha)

The Siberian sturgeon is a beautiful fish indeed. Their snouts are on the shorter end for a sturgeon and they poke upwards so amicably. What’s not to love about this fish? A fact about the Siberian sturgeon, huh… the first thing that comes to my mind is the existence of at least two populations of A. baerii that have between them enough genetic distinctions to have at one point been considered separate subspecies. One population resides in the Ob River and migrates through its waters with the changing seasons. The other stays in the northern end of Lake Baikal, the deepest known lake in the world.

s,,, sturgeon

Order up

sturgeons are so friend shaped??? I hope they have a pleasant day tbh

They hope you have a pleasant day as well.

Siberian sturgeon ( Acipenser baerii ) © Hannes Klostermann

Fish of the Day Today’s fish of the day is the Siberian sturgeon! The Siberian sturgeon also known by scientific name X is a well known freshwater fish and popular in hobby pond trade. Found, as the name implies, around Siberia, Russia, China, And most other North Eastern European and Western Asian countries. In particular, this fish is found in the Siberian river drains of the Ob, Yenisei, Kolyma, Lena, and Kazakhstan rivers, draining toward the Kara sea, Laptev sea, and lake Baikal. These fish, like other sturgeon, spend their time concentrated around the surface of the water of freshwater lakes and rivers in freshwater or brackish areas living in a pH of 7.0-7.5 and temperatures of 1-19°C. However, unlike many other sturgeon, Siberian sturgeon are entirely freshwater and do not migrate to the sea or ocean in their life cycle, except for some specific populations. Speaking of populations, this fish was once believed to have several subspecies. The first was called A. b. baerii and was called the Siberian Sturgeon and makes up around 80% of the current population. Known for living along the Ob river and all offshoots, when the waters cool enough to freeze in areas and the oxygen levels lower along the river, these sturgeon will migrate to the mouth of the Ob river, where there is a much higher dissolved oxygen amount. The next proposed subspecies is the Baikal sturgeon, A. b. baicalensis , can be found in lake Baikal (the deepest lake in the world, and occasionally believed to be the deepest water source in the world, and containing around 25% of all freshwater, and the only exclusively freshwater seal) of whom migrates up to the Selenga river when spawning during the summers. And lastly, A. b. stenorrhynchus, the Eastern Siberian sturgeon. This fish population has two distinct life cycles in their younger and sexually active years, these fish will migrate upwards of a thousand kilometers to spawn, and then as they age another lifecycle where they are entirely non migratory. This of course is now known to be a monotypic species and that each of these are rather unique population of Siberian sturgeon rather than subspecies. Their diet is made up of crustaceans and larvae in the wild, but in farms where they are raised for caviar and meat, these sturgeon are fed with meat and biomass pellets, very similar to the way that trout and salmon are farmed. When they reach maturity, at an age of 11-20 years (although this can be as low as 6 in farms due to different feeding and hormonal mixes) these fish can get as large as 2 meters (6'6 in feet and inches) and weigh as much as 450 pounds. Once they reach this maturity these fish will breed in the summer months, although individual fish only breed every 2-5 year depending on age. These fish will spawn in areas of clear water, abundant gravel, and strong currents for the eggs to travel in. These eggs will then settle along the gravel and hatch into larvae over the span of around 2 months, then continuing the life cycle. The Siberian sturgeon is referred to as long lived, not near as long as some of their relative sturgeons who can live upwards of a century in some cases, but can survive into their 60’s, participating in around 15 breeding seasons throughout their lifetime. This lifespan is often cut short by the many poachers however, along with habitat loss due to dams, and degradation due to pollution, putting these fish at a risk of extinction of wild populations. That’s the Siberian sturgeon everyone! Have a wonderful day!