Accelerated growth of smallmouth bass in a pumped storage system. [Micropterus dolomieui]

Journal Article · Tue Jul 01 04:00:00 EDT 1980 · Trans. Am. Fish. Soc.; (United States)

DOI:https://doi.org/10.1577/1548-8659(1980)109<371:AGOSBI>2.0.CO;2· OSTI ID:5147531

Heisey, P G; Mathur, D; Magnusson, N C

A 12-year study of the smallmouth bass population, Micropterus dolomieui, in a pumped storage reservoir revealed an accelerated growth that was related to the abundance of gizzard shad, Dorosoma cepedianum. Prior to the gizzard shad introduction, the growth of smallmouth bass was generally poorer than that reported for the mid-Atlantic region. Large drawdowns (9 m per day, 15.6 m per week) may have increased the vulnerability of gizzard shad by concentrating both prey and predator. In the lower reservoir, where water levels fluctuated irregularly and much less (up to 1 m per day), smallmouth bass growth was not greatly improved following the introduction of gizzard shad.

• Research Organization: Muddy Run Ecological Lab., Drumore, PA
• OSTI ID: 5147531
• Journal Information: Trans. Am. Fish. Soc.; (United States), Journal Name: Trans. Am. Fish. Soc.; (United States) Vol. 109:4; ISSN TAFSA
• Country of Publication: United States
• Language: English

Related Subjects

13 HYDRO ENERGY
130600* -- Hydro Energy-- Environmental Aspects
550100 -- Behavioral Biology
59 BASIC BIOLOGICAL SCIENCES
ANIMAL GROWTH
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
DATA
EXPERIMENTAL DATA
FISHES
GROWTH
HYDROELECTRIC POWER PLANTS
INFORMATION
NUMERICAL DATA
PEAKING POWER PLANTS
POWER PLANTS
PREDATOR-PREY INTERACTIONS
PUMPED STORAGE POWER PLANTS
SURFACE WATERS
VERTEBRATES
WATER RESERVOIRS