Cynoscion nebulosus, (Cuvier, 1830)
Spotted seatrout (Cynoscion nebulosus), also known as speckled trout, is a common estuarine fish found in the southern United States along coasts of Gulf of Mexico and the coastal Atlantic Ocean from Maryland to Florida. While most of these fish are caught on shallow, grassy flats, spotted seatrout reside in virtually any inshore waters, from the surf of outside islands to far up coastal rivers, where they often come for shelter during cold weather. Contrary to its name, the spotted seatrout is not a member of the trout family (Salmonidae), but of the drum family (Sciaenidae). It is popular for commercial and especially recreational fishing in coastal waters of the southeastern United States. Adults reach 19–37 inches in length and 3–17 pounds in weight.
Spotted seatrout is the common name endorsed by the American Fisheries Society. However, this fish has many other common names, including speckled trout, speck, speckles, spec, truite gris (Louisiana French), trucha de mar (Mexican Spanish), spotted weakfish, spotted seateague, southern seateague, salmon, salmon trout, simon trout, winter trout, seatrout, Nosferatu fish, and black trout. Particularly large ones are nicknamed gator trout.
Spotted seatrout live in the top of the water column and are most numerous along the coasts of the southeastern states, such as Texas, Louisiana, Alabama, Mississippi, Georgia, and Florida. They are also common along the coasts of North and South Carolina and Virginia. Estuarine coasts are prime settlement areas. They are uncommonly seen north of Delaware Bay and along the coast of Cape Cod, Massachusetts. They are most abundant in the mid-Atlantic and southeastern regions of the United States. Speckled trout prefer water temperatures between 59 °F and 86 °F and are typically found in waters with salinities between 5 and 35 ppt.
Small trout eat large amounts of shrimp and other crustaceans. As they grow larger, their diets shift toward fish, the larger, the better. Studies in Texas and Mississippi show that really big trout strongly prefer to feed on mullet; a large trout will find the largest mullet it can handle and try to swallow it. Often the mullet is half or two-thirds as large as the trout.
Like all members of the drum family, mature males make a "drumming" sound to attract females during the spawning season. Spotted seatrout have a long spawning season from spring through summer.
Larval seatrout reach 5–7 mm in length about two weeks after hatching, and 170–200 mm within about seven months. It takes between one and two years for seatrout to reach 300 mm (about 12 inches) and between two and three years to reach 400 mm in length (about 16 inches). The maximum age of spotted seatrout that have been caught is estimated to be 12 years old, though that is rare, and the oldest fish caught on a regular basis are closer to four or five years old.
By the end of the first year, spotted seatrout are about 250 mm long and about half of them are mature enough to reproduce. They reproduce in shallow, grassy areas of estuaries.
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