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- Title
Factors Related to Growth and Condition of the Alabama Subspecies of Spotted Bass in Reservoirs.
- Authors
DICENZO, VICTOR J.; MACEINA, MICHAEL J.; REEVES, WILLIAM C.
- Abstract
Growth and condition were estimated for Alabama spotted bass Micropterus punctulatus henshalli from 10 Alabama reservoirs. Faster growth to 300 mm total length (TL) was associated with higher levels of chlorophyll a, alkalinity, and conductivity, and with reservoirs at lower elevation with minimal water level fluctuations. Drainage area, alkalinity, and lower Secchi depth transparency were related to time for spotted bass to reach memorable size (430 mm TL). Spotted bass grew to 300 mm and 430 mm TL faster in eutrophic reservoirs. Relative weights ( Wr) of various length categories were positively related to drainage area, chlorophyll a, alkalinity, conductivity, and the morphoedaphic index, and were negatively correlated with Secchi disk transparency. Spotted bass from eutrophic reservoirs expressed higher values of Wr than fish from oligo-mesotrophic systems. Correlations between growth and Wr were not significant for some length categories of spotted bass. Because growth of largemouth bass Micropterus salmoides and spotted bass is nearly identical until age 5, a single length limit might be used to manage the populations in Alabama reservoirs, rather than the multiple length limits sometimes used for sympatric populations elsewhere.
- Publication
North American Journal of Fisheries Management, 1995, Vol 15, Issue 4, p794
- ISSN
0275-5947
- Publication type
Article
- DOI
10.1577/1548-8675(1995)015<0794:FRTGAC>2.3.CO;2