How to identify a Weakfish. The lower jaw of the weakfish clearly projects beyond the upper jaw. Two large, recurvate canine teeth in the front of the upper jaw stand out noticeably. The first dorsal fin has 10 spines. The second has one spine and 26-29 soft rays. The anal fin has two spines and 11-12 rays.
https://www.takemefishing.org/fish-species/weakfish/
The Weakfish Management Zone includes state waters from the Florida-Georgia line to the southernmost tip of Amelia Island, the inland waters of Nassau County and the St. Marys River and its tributaries east of Highway 17, north of State Highway 200A and north of the Shave Bridge on the Amelia River.
http://myfwc.com/fishing/saltwater/recreational/weakfish/
July 27, 2010: Weakfish regulations took effect creating a Weakfish Management Zone in part of Nassau County to address difficulty distinguishing between weakfish, sand seatrout and weakfish-sand seatrout hybrids.
http://myfwc.com/fishing/saltwater/recreational/weakfish/
Adults: Visual predators with generalized diet; typically feed at periphery of estuarine grass beds. Primarily consume menhaden, herring, anchovies, croaker, spot, penaeid shrimp, and crabs. Juveniles: Primary prey species include mysid shrimp and clupeid fishes (anchovies). Larvae feed on zooplankton.
http://dnr.sc.gov/marine/species/weakfish.html
Recreational catches of weakfish in South Carolina have been higher in the last ten years than in the twenty years before that. South Carolina is at the southern end of the range for weakfish on the Atlantic coast and most weakfish landings in South Carolina occur along the northern portion of the coast in Long Bay.
http://dnr.sc.gov/marine/species/weakfish.html
Weakfish are an Atlantic coast fish, possibly found in the extreme southeastern Gulf. Adults move inshore and north during warm months inhabiting the surf, inlets, bays, channels and estuaries and offshore and south during cold months. Juveniles inhabit estuaries which serve as nurseries.
http://myfwc.com/fishing/saltwater/recreational/weakfish/
There’s something so entirely right about springtime fishing. The bay breezes are fresh, the sun burns off the morning haze and warms you to a comfort level, and for the first time of the year, a shot of incredibly beautiful fish run with the tides. May is the prime month to sneak out after the weakfish of your dreams.
http://www.onthewater.com/trophy-weakfish/
The weakfish, Cynoscion regalis, is a marine fish of the drum family Sciaenidae. A medium-large, slender, marine fish, it is found along the east coast of North America. The head and back of this fish are dark brown in color with a greenish tinge.
https://en.wikipedia.org/wiki/Weakfish
Weakfish run with the tides, moving in and out and all around the backwaters, setting up shop around sedge points, underneath sod banks and deep in the channels to chase and suck down the baitfish and crustaceans that flow in and out with the tides.
http://www.onthewater.com/trophy-weakfish/
Cynoscion regalis. AKA: gray trout, trout. Description: Weakfish are dark olive-green on top and silvery below, burnished on the back and sides with purple, lavender, green, blue, golden or copper. The sides are flecked with dark blotches that form wavy lines running down and forward, but not into the fins.
http://portal.ncdenr.org/web/mf/weakfish
where are the weakfish
You can find  the weakfish in the extreme southeastern Gulf. The weakfish are in the extreme southeastern Gulf.