Benthic bacterial biomass and production in the Hudson River estuary. [Trapa, Typha, Nuphar]

Journal Article · Sun Jan 01 04:00:00 EST 1989 · Microbial Ecology; (USA)

DOI:https://doi.org/10.1007/BF02030119· OSTI ID:6898495

Austin, H K ^[1]; Findlay, S E.G. ^[2]

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1. Univ. of Georgia, Athens (USA)
2. Institute fo Ecosystem Studies, Millbrook, NY (USA)

Bacterial biomass, production, and turnover were determined for two freshwater march sites and a site in the main river channel along the tidally influenced Hudson River. The incorporation of (methyl-{sup 3}H)thymidine into DNA was used to estimate the growth rate of surface and anaerobic bacteria. Bacterial production at marsh sites was similar to, and in some cases considerably higher than, production estimates reported for other aquatic wetland and marine sediment habitats. Production averaged 1.8-2.8 mg C{center dot}m{sup {minus}2}{center dot} hour{sup {minus}1} in marsh sediments. Anaerobic bacteria in marsh sediment incorporated significant amounts of (methyl-{sup 3}H)thymidine into DNA. Despite differences in dominant vegatation and tidal regime, bacterial biomass was similar (1 {times} 10{sup 3} {plus minus} 0.08 mg C{center dot}m{sup {minus}2}) in Trapa, Typha, and Nuphar aquatic macrophyte communities. Bacterial abundance and productivity were lower in sandy sediments associated with Scirpus communities along the Hudson River (0.2 {times} 10{sup 3} {plus minus} 0.05 mg C{center dot}m{sup {minus}2} and 0.3 {plus minus} 0.23 mg C {center dot} m{sup {minus}2}{center dot} hour{sup {minus}1}, respectively).

• OSTI ID: 6898495
• Journal Information: Microbial Ecology; (USA), Journal Name: Microbial Ecology; (USA) Vol. 18:2; ISSN MCBEB; ISSN 0095-3628
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540311* -- Environment
Aquatic-- Basic Studies-- Radiometric Techniques-- (1990-)
AQUATIC ECOSYSTEMS
AQUATIC ORGANISMS
AZINES
BACTERIA
BENTHOS
BIOMASS
ECOSYSTEMS
ENERGY SOURCES
ESTUARIES
HETEROCYCLIC COMPOUNDS
HUDSON RIVER
HYDROGEN COMPOUNDS
ISOTOPE APPLICATIONS
MICROORGANISMS
NUCLEOSIDES
NUCLEOTIDES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PRODUCTIVITY
PYRIMIDINES
RENEWABLE ENERGY SOURCES
RIBOSIDES
RIVERS
SEDIMENTS
STREAMS
SURFACE WATERS
THYMIDINE
TRACER TECHNIQUES
TRITIUM COMPOUNDS
UPTAKE
WETLANDS