The STURGEON (Acipenser brevirostrum) inhabits the main parts of the river and estuaries, in all depths. Adult sturgeons weigh up to an average of 8 pounds and grow up to 36 to 38 inches. The life expectancy of a sturgeon is usually 20 years but specimens have been found to live up to 50 and even 75 years old. It feeds mainly on insects, mollusks and crustaceans.


Sturgeon Description


Sturgeons have a primitive look, with a unique heterocercal tail where the upper part of the tail fin is longer than the lower part. Its body is covered by 5 rows of hard, bony scales. They have a tube-like mouth that can be found under the bony, elongated snout. The mouth protrudes several inches while the fish feeds on the bottom of the river. Their color is from gray-olive to brown on the top part and white on the underbelly.


Facts about Sturgeon Habitat and Life Cycle


The life cycle of a sturgeon is complex and it is still not clear as to how they reproduce. The only feature about their life cycle confirmed is that they migrate from saltwater to spawn in the brackish waters of the estuary. Although their sexual maturity depends on the habitat they are in, males usually reach sexual maturity at 3 years and females at 5 years.


Essential sturgeon facts for kids
Sturgeons are among the longest living fish in the world. They grow slowly but as they reach maturity, their only natural enemies are humans. This freshwater fish is already an endangered fish species.

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