Length-Dependent Winter Survival and Lipid Composition of Age-0 Largemouth Bass in Bay Springs Reservoir, Mississippi
- 1 January 1994
- journal article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 123 (1) , 80-87
- https://doi.org/10.1577/1548-8659(1994)123<0080:ldwsal>2.3.co;2
Abstract
Age-0 largemouth bass Micropterus salmoides were studied in Bay Springs Reservoir, Mississippi, to determine if the larger young had greater survival through their first winter and if this survival was influenced by levels of energy reserves. Abundance decreased from 542 young/ hectare in June, when fish averaged 37 mm total length, to 12/hectare in March, when lengths averaged 149 mm. The length-frequency distribution of this year–class was positively skewed during June–August, became bimodal during September–January, and lost most of the smaller mode by March. During September–January, fish in the smaller mode decreased in abundance from 176 to 9/hectare and their mean length remained near 60 mm; fish in the larger mode decreased in abundance from 76 to 27/hectare and increased in length from 108 to 154 mm. Whole-body lipid content increased from 3.5% of dry body weight in fall to 5.9% in December and decreased to 3.3% in March. All young had equal amounts of stored lipid by late fall, but by M...Keywords
This publication has 0 references indexed in Scilit: