Table 3 Historical and current distribution, and densities of Fusconaia askewi and Pleurobema riddellii in Texas
Habitat characteristics | F. askewi | P. riddellii |
|---|---|---|
Distribution (Literature data) | Angelina River, Attoyac Bayou, Bonita Creek, Lanana Creek, Cypress Bayou, Cypress River, Big Lake, Big Creek, Chambers Creek, Lake Fork Creek, Navasota River, Kickapoo Creek, Neches River, Sabine River, Sandy Creek, San Jacinto River, Trinity River, Village Creek and tributaries [14, 15, 24, 26–29, 31, 34–36, 49–53] | Angelina River, Big Lake, Kickapoo Creek, Sabine River, San Jacinto River, Trinity River, Village Creek and tributaries, Chambers Creek [15, 24, 30, 31, 34, 35, 37] |
Current distribution (Our data) | Angelina River (27), Attoyac Bayou (25), Sandy Creek (52), Big Cypress Bayou (2), Neches River (274), Sabine River (129), Trinity River (36), Village Creek (386) | Angelina River (9), Neches River (86), Village Creek (37) |
Density, m-2 | 6.7 ± 12.8 (data from 7 sites, 89 quadrats total) | 1.9 ± 1.2 (5 sites, 49 quadrats) |
Relative abundance, % | 22 (1 – 58) | 5 (1 – 13) |