Age and growth of largemouth bass in a thermally altered reservoir, as determined from otoliths

Journal Article · Sun Jan 01 04:00:00 EST 1984 · North Am. J. Fish. Manage.; (United States)

DOI:https://doi.org/10.1577/1548-8659(1984)4<321:AAGOLB>2.0.CO;2· OSTI ID:5270336

Perry, L G; Tranquilli, J A

Comparative growth rates of largemouth bass (Micropterus salmoides) from heated and ambient areas of Coffeen Lake, Illinois, were estimated by back calculation of lengths at annuli using transverse sections of otoliths and by recovery of marked fish after one growing season. Calculated lengths at otolith annuli were judged to be representative of the population growth, indicating that this technique was a reliable approach to obtaining growth information on largemouth bass from thermally affected environments. Growth of the Coffeen Lake population was more rapid than most other midwest populations. Fish recaptured in heated areas generally exhibited greater annual growth increments than those recaptured in ambient areas. Young largemouth bass (ages 1-4) from heated areas had significantly greater (P < 0.05) mean lengths than those from ambient areas according to back-calculated estimates. This was attributed to a longer growing season and earlier hatching time in thermally affected areas. 33 references, 6 figures, 3 tables.

• Research Organization: Illinois Natural History Survey, Champaign
• OSTI ID: 5270336
• Journal Information: North Am. J. Fish. Manage.; (United States), Journal Name: North Am. J. Fish. Manage.; (United States) Vol. 4:3; ISSN NAJMD
• Country of Publication: United States
• Language: English

Related Subjects

520400* -- Environment
Aquatic-- Thermal Effluents Monitoring &amp; Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ANIMAL GROWTH
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
COMPARATIVE EVALUATIONS
FEDERAL REGION V
FISHES
GROWTH
ILLINOIS
LAKES
NORTH AMERICA
SURFACE WATERS
THERMAL EFFLUENTS
USA
VERTEBRATES