A male Alabama sturgeon was recently caught in the Alabama River in Wilcox County. It is the first Alabama sturgeon that biologists have netted since 1999. Alabama sturgeons are believed to be among the rarest fish species in the world.Scientists cut a three-quarter-inch incision in the sturgeon to determine its sex. Under a current breeding program, if the fish had been a female in breeding season they would have held it and inseminated it with frozen sperm saved from Alabama sturgeon caught in the 1990's. If it had been a male ready for breeding, they would have removed sperm. However, because all five fish previously caught under the current breeding program have been male, the biologists decided almost immediately that they would release him in hopes of subsequently catching a female. For tracking purposes, the scientists inserted a sonar device equipped with a four-year battery into the fish.
The Alabama sturgeon is believed to be the rarest vertebrate in all North America, surpassing even the Florida panther and the California condor. There is little information on its lifespan, but the species is believed to live 12 to 20 years, similar to other sturgeon species. Unlike other sturgeon, the Alabama sturgeon has a distinct yellowish-orange color.
Although biologists were aware of a distinct sturgeon species in Alabama's rivers as far back as the 1950s or 1960s, they were unable to formally identify it until 1991. Alabama is home to more fish species than any other state. The state has the third-highest number of endangered species, most of them aquatic.
Below are some pictures of the Alabama sturgeon taken from this photo gallery:
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