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Benthic organic matter dynamics in Texas prairie streams

✍ Scribed by B. H. Hill; T. J. Gardner; O. F. Ekisola

Publisher
Springer
Year
1992
Tongue
English
Weight
387 KB
Volume
242
Category
Article
ISSN
1573-5141

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✦ Synopsis

Concentrations of benthic particulate organic matter (POM) in six Texas prairie streams (2nd-4th order, intermittent and perennial) were monitored over a 20 month period to determine temporal and spatial dynamics . Benthic POM mass was highly variable, having coefficients of variation (CV) in excess of 300% . Benthic POM mass in all streams was similar with the exception of the 4th order intermittent stream which had significantly higher concentrations . Benthic POM at all sites was dominated by coarse POM (CPOM), followed by fine POM (FPOM), ultrafine POM (UPOM), and medium POM (MPOM) . The dominance by CPOM is especially noteworthy in the 4th order intermittent stream where it accounted for 83 % of the annual POM mass . Seasonally, benthic POM was highest in summer and lowest in the fall.

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✍ B. H. Hill; T. J. Gardner; O. F. Ekisola πŸ“‚ Article πŸ“… 1992 πŸ› Springer 🌐 English βš– 667 KB

Predictability of stream discharge and particulate organic matter (POM) in the water column was estimated, using Colwell's indices of constancy and contingency, for 6 Texas prairie streams (1 each of 2nd, 3rd, and 4th order with intermittent or perennial discharge) . Stream discharge in these 6 prai