Filters: Tags: EasternGulfOfMexicoStates (X) > partyWithName: Pam L Fuller (X)
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The Gulf Sturgeon (Acipenser oxyrinchus ssp. desotoi) as the name implies lives in the estuaries of the Gulf of Mexico but migrates up coastal rivers to spawn (anadromous). It is found in rivers from spring until fall and in the Gulf during the winter. It feeds heavily while in the Gulf, but adults eat very little (or not at all) while in the rivers. The species declined dramatically after the late 1800s. It fell victim to overharvest for its meat and roe, dam construction, and dredging activities. The largest population is currently in the Suwannee River in Florida.
The Alabama Sturgeon (Scaphirhynchus suttkusi) has suffered from habitat loss and fragmentation caused by dredging for navigation, peaking hydropower projects, and dam construction. This species requires clean hard substrate with stable daily flows for spawning, and needs connected river reaches for long-distance spawning migrations. Both of these needs have been disrupted by human activities in their range. This fish has disappeared from about 85 percent of its historic range in the Alabama and Tombigbee River systems. The Alabama Sturgeon was placed on the endangered species list in 2000.
Historical pictures and accounts document the substantial decline of Alligator Gar ( Atractosteus spatula) throughout its range. A number of factors likely contributed to the decline, including angler overharvest and habitat loss resulting from dredging and damming southern rivers. Alligator Gar was a highly sought sport and commercial fish by some but was targeted for eradication or control by others as a “trash fish.” Studies in Alabama, Mississippi, and Louisiana have shown that the Alligator Gar is susceptible to overfishing. It has been classified as rare in Missouri, threatened in Illinois, and endangered in Arkansas and Kentucky, and is expected to soon to be classified as endangered in Tennessee. Populations...
Mississippi designated the Largemouth Bass as the official State fish in 1974, and it is the State freshwater fish in Florida, Alabama, and Georgia. The Pascagoula River is a unique resource because it is the only nearly completely free flowing (undammed) river in the region. With more than 10 cubic kilometers (2.4 cu mi) of water flowing per year into the Gulf of Mexico, it is the largest (by volume) undammed river in the contiguous 48 States. In fact, it is also the largest undammed river in the warm, humid region (Köppen climate classification zone), with southeastern Brazil claiming the second and third largest rivers in the climate zone. As a result, there continues to be a concerted effort to prevent dam construction...
The Bluenose Shiner (Pteronotropis welaka) inhabits a variety of habitats from backwaters and swamps to spring-run streams. It is often found in deep pools with aquatic vegetation. Population losses have been observed where either aquatic or streamside vegetation was removed. Other threats include changes in water quality and quantity, impoundments, dredging, urbanization, and both point source and non-point source pollution.
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