Pirate Perch Aphredoderus sayanus
This species was found at 2 bioassessment sites, 0 rapid fish bioassessment sites, 0 fisheries assessment sites, and 0 fisheries presence-only assessment sites. In total, it was collected at 2 distinct sites, or 0.1% of the 1442 total sites monitored by the bioassessment program. It is the 121st most commonly collected species.
The Pirate Perch was collected in 2 bioassessment sampling sessions and 0 fisheries assessment sessions. It was present in 0 rapid bioassessment sessions and 0 presence-only sessions.
The biological assessment program has collected a total of 16 individual Pirate Perch specimens, ranking it the #120 most collected fish.
A stout, dark-colored fish, with a single dorsal fin and ctenoid scales on its head and body. Its tail fin is slightly notched. The anus is far forward of the anal fin and located on the throat of adults. Its mouth is large and oblique with the lower jaw projecting forward. Many very small villiform teeth in bands are on the upper and lower jaws. The gill cover has a sharp spine and the rear edge of the preopercle is strongly serrated. The dorsal fin has 2-3 short spines with 10-11 rays, anal fin 2-3 spines with 6-7 rays, and the pelvic fin has a single spine with 6 rays. The lateral line is incomplete or absent with 48-59 lateral series scales. Its upper body is dark olive to black with the sides lighter and the belly yellowish. The back and sides are thickly speckled with black, and there are two narrow, verticle bars at the base of the caudal fin. Adults are commonly 3- to 4.5-inches long, with a maximum length of 5-inches.
HUC12 watersheds where this species has been found