Aspects of the Feeding Ecology of Gizzard Shad in Acton Lake, Ohio
- 1 May 1981
- journal article
- research article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 110 (3) , 391-395
- https://doi.org/10.1577/1548-8659(1981)110<391:aotfeo>2.0.co;2
Abstract
Diel feeding periodicity of gizzard shad (D. cepedianum) in Acton Lake, Ohio, was studied in 1973 and 1974. Grazing on bottom sediments by age-I and age-II gizzard shad usually began in early morning, increased in intensity until 1400-1600 h, and then declined. After dusk, the fish became inactive, and feeding activity ceased. Exceptions to this pattern were noted in May and June 1974, when food intake decreased markedly during the spawning period. Organic and caloric contents of detrital food material in the gizzards ranged from 3.1-61.5% (mean = 18%) of dry weight and 845-5520 cal/g ash-free dry weight (1973, mean = 3187; 1974, mean = 3132). The low quality (expressed as calories) of the organic detritus ingested during most of the summer could explain in part why the growth rates of gizzard shad in this system are depressed in relation to those observed in other impoundments at similar latitudes.This publication has 2 references indexed in Scilit:
- Energy Storage and Utilization Patterns of Gizzard Shad in Acton Lake, OhioTransactions of the American Fisheries Society, 1980
- Nutritional Implications of Surface Feeding by Gizzard Shad (Dorosoma cepedianum) on Insect Remains in an Ohio ReservoirJournal of the Fisheries Research Board of Canada, 1977