The specific null hypotheses were tested for flatfishes and sea scallop escapement separately.
Several flatfishes, including yellowtail flounder and windowpane were observed escaping the dredge by swimming out through the tickler chain openings or upward past the camera/clubstick out of the dredge mouth.
The null hypothesis that pause length has no effect on the retention of flatfishes was rejected.
Responses of flatfishes to the footgear and sweeps had been classified into the 4 categories "pass under," "hop," "rise," and "run" in previous studies (Ryer and Barnett, 2006; Ryer, 2008; Ryer et al.
Total flatfish densities, estimated as the number of stationary and moving flatfishes in each video frame, were recorded at the start of each observation (start density).
Catch composition of flatfishes varied with each tow, ranging from 84% to 92% for yellowtail and from 8% to 15% for American plaice.
Some left-eyed flatfishes are in the family Bothidae or the family Paralichthyidae, which includes many commercially important species of flounder, such as the southern flounder.
Flatfishes eat smaller fish, crustaceans, and mollusks (Topp & Hoff, 1972; Carpenter, 2002).
The abundance of flatfishes in Wylly Creek, GA has been studied every year since 2004, ensuring that we have replicate data across multiple years.
Wylly Creek was chosen for our study because we have preliminary data indicating that flatfishes were present there in higher numbers than other creeks sampled such as the Herb River.
All flatfishes were identified, counted, and measured to the nearest mm TL.
The species of flatfish present in the estuary and the mean length of flatfishes varied by sampling month (p<0.