Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
Home | Intranet | Digital Measures | Help

Grabowski T.B., and J.J. Isely. 2007. Effects of flow fluctuations on riverine fish spawning habitat. Southeastern Naturalist 6:471-478.

Abstract

Shallow-water, lithophilic spawning fishes are among the most vulnerable to anthropogenic fluctuations in water levels. We monitored water levels and environmental conditions at the nest sites of Moxostoma robustum (Robust Red-horse) on a main-channel gravel bar in the Savannah River, GA–SC. During the course of the 2005 spawning season, over 50% of the observed nest sites were either completely dewatered or left in near zero-flow conditions for several days. This occurred on two separate occasions, once early during the spawning season and then again near its conclusion. We hypothesize the habitat preferences of spawning Robust Redhorse leave them vulnerable to water-level fluctuations, and this phenomenon may be widespread in regulated river systems.

 

Current Staff

Federal Staff: 2

Masters Students: 5

Phd Students: 4

Post Docs: 0

University Staff: 2

5 Year Summary

Students graduated: 43

Scientific Publications: 67

Presentations: 156

 

Status

Published
July (3rd Quarter/Summer) 2007

Access

Publisher Website

Unit Authors

Texas Cooperative Fish and Wildlife Research Unit Cooperators

  1. Texas Parks and Wildlife
  2. Texas Tech University
  3. U.S. Fish and Wildlife Service
  4. U.S. Geological Survey
  5. Wildlife Management Institute