Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1986 Jun;51(6):1259-63.

Impact of Storms on Heterotrophic Activity of Epilimnetic Bacteria in a Southwestern Reservoir

Affiliations
Free PMC article

Impact of Storms on Heterotrophic Activity of Epilimnetic Bacteria in a Southwestern Reservoir

J G Hubbard et al. Appl Environ Microbiol. .
Free PMC article

Abstract

The impact of storm conditions on the heterotrophic activity of planktonic bacteria in a southwestern reservoir was investigated. Storm events were considered as rainfall in excess of 2.5 cm in a 24-h period before sampling. Storm conditions stimulated heterotrophic activities and resulted in increased uptake rates and decreased turnover times of glutamate and acetate. Uptake rates were 45 to 75% faster immediately after storm conditions than they were during calm conditions. Activity levels appeared to return to prestorm levels within 48 h. Bacterial cell numbers did not change substantially during storm events. Cell-specific activity indicated that increases in heterotrophic activity were the result of increased activity of individual cells. Light penetration, levels of particulate organic carbon, K(t) + S(n) values, and population levels of attached bacteria suggest that immediate sediment loading of the reservoir or increased substrate levels could not account for abrupt increases in heterotrophic activities.

Similar articles

See all similar articles

Cited by 3 articles

References

    1. Appl Environ Microbiol. 1977 May;33(5):1225-8 - PubMed
    1. Appl Environ Microbiol. 1985 May;49(5):1254-9 - PubMed
    1. Can J Microbiol. 1974 Sep;20(9):1261-6 - PubMed
    1. Appl Environ Microbiol. 1978 Aug;36(2):297-305 - PubMed
    1. Appl Environ Microbiol. 1982 Jun;43(6):1227-37 - PubMed

LinkOut - more resources

Feedback