The Virtual Aquarium of Virginia Tech--Pirate Perches

Pirate Perch, Aphredoderus sayanus

This family contains only one species, the pirate perch. In Virginia, this species is found in most major Atlantic slope rivers in quiet backwaters. The anus and reproductive opening are positioned normally in young fish, but migrate forward during adult development and are found just behind the head, near the throat in adult fish. These small stream fishes add to the aquatic diversity and serve as links in the food chain and indicators of water quality.

 
Physical Description: 
ï¿½	Drab, dark, stout-bodied fish
ï¿½	Anus located behind the head in the jugular
ï¿½	Compressed body, arched back
ï¿½	Rounded snout with a terminal or supraterminal mouth
ï¿½	Single dorsal fin
ï¿½	Slightly indented tail fin
ï¿½	Cheek area iridescent silver-blue

Similar species: 
ï¿½	Only living species in this family

Mean body size:
ï¿½	Adults are 45-90 mm standard length 

Habitat:
ï¿½	Warm, calm streams, rivers, ponds, and lakes
ï¿½	Partially bury themselves in sand in winter

Distribution in VA:
ï¿½	Found in all major Atlantic slope drainages, some minor ones, and the Delmarva Peninsula

Food Habits:  
ï¿½	Insects, small crustaceans, invertebrates, and fish
ï¿½	Feeding occurs at night.

Reproductive Habits: 
ï¿½	Maturation at 35 mm for females and 55 mm for males 
ï¿½	Spawning occurs in late March through early April
ï¿½	Fecundity is 129-160 eggs.
ï¿½	Depressions in the sand bottom or may practice branchial brooding

Population Status, Economic, or Ecological Importance: 
ï¿½	Popular aquaria fish

References:       

Jenkins, R.E and N.M. Burkhead. 1993. Freshwater Fishes of Virginia. American Fisheries Society, Bethesda, Maryland.

If you are seeking more information for the above species click on the VAFWIS logo (The Virginia Fish and Wildlife Information Service):

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