New localities for Notropis buchanani, Fundulus diaphanus menona,
Aphredoderus sayanus, Ammocrypta pellucida, and Percina sciera have been recorded from the Western basin.
Seven species were limited to headwater sites: Creek Chub (Semotilus atromaculatus), River Carpsucker (Carpiodes carpio), Lake Chubsucker (Erimyzon sucetta), Silver Redhorse, Black Bullhead, Pirate Perch (
Aphredoderus sayanus), and Bluntnose Darter.
isostomum
Aphredoderus Intestine Bangham & sayanus Venard, 1942 Dasymetra nicolli Nerodia Mouth Tkach et al., rhombifer 2001 D.
Smaller numbers (1 to 5% of total catch) of white sucker (Catostomus commersoni) grass pickerel (Esox americanus vermiculatus), brown trout, and pirate perch (
Aphredoderus sayanus) also were found at most stations.
0.002 Strongylura marina 0.002 Percina caprodes 0.002
Aphredoderus sayanus 0.002 Cyprinus carpio 0.0021 Morone mississippiensis 0.0021 Opsopoeodus emiliae 0.0021
Axis-1 represents a gradient of green sunfish (Lepomis cyanellus), creek chub (Semotilus atromaculatus), grass pickerel (Esox americanus), bluegill (Lepomis macrochirus), and northern hog sucker (Hypentelium nigricans) ([R.sup.2] = 0.41); Axis-2 represents pirate perch (
Aphredoderus sayanus), mottled sculpin (Cottus bairdii), and grass pickerel ([R.sup.2] = 0.09); and Axis-3 represents black bullhead (Ameiurus melas), blackstripe topminnow (Fundulus notatus), and pumpkinseed sunfish (Lepomis gibbosus) ([R.sup.2] = 0.04).
Aphredoderus sayanus.--The pirate perch is abundant in the Austroriparian.
For the miscellaneous species, Esox americanus and
Aphredoderus sayanus show a small decrease in occurrence (Figure 7).
heterolepis), pugnose minnow (Opsopoeodus emiliae), harelip sucker (Moxostoma lacerum), northern madtom (Noturus stigmosus), pirate perch (
Aphredoderus sayanus), western banded killifish (Fundulus diaphanus menona), and gilt darter (Percina evides) (Kirsch, 1895; Trautman, 1981).
Aphredoderus sayanus--UF 173590 (ex BU 385) (1 dried).
Grass pickerel (Esox americanus), pirate perch (
Aphredoderus sayanus) and banded pygmy sunfish were found only in the spring habitat and are usually associated with submerged aquatic vegetation (Robison & Buchanan 1988).