PERSONAL DE APOYO
BUSTINGORRY Jose Fernando
artículos
Título:
Diel patterns of total suspended solids,
Autor/es:
L. LAGOMARSINO; N. DIOVISALVI; J. BUSTINGORRY; R. ESCARAY; H. ZAGARESE
Revista:
HYDROBIOLOGIA
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2014 vol. 738
ISSN:
0018-8158
Resumen:
The effects of external physical forcing
variables (solar radiation and winds) on short-term
dynamics of total suspended solids (TSS), Chlorophyll-
a (Chl-a), turbidity levels, and water transparency
were studied during 15 days in a highly turbid,
shallow lake (Laguna Chascomu´ s, Argentina). Water
samples were taken three times per day (8, 14 and
20 h.). Solar radiation and wind velocity showed a
repeatedly bell-shaped diurnal pattern, with significant
higher values during morning and afternoon, respectively.
TSS and turbidity displayed a general decreasing
trend during the sampling period, while water
transparency showed the opposite trend. Also Chla
displayed a decreasing trend and was closely
correlated to TSS levels. We assayed a first-order
kinetics model to detrend the series, obtaining the rate
of change during the night, morning, and afternoon.
We observed higher values on afternoon compared to
morning for TSS, Chl-a, and turbidity levels and the
opposite pattern for water transparency. We conclude
that this pattern may result from a combination of
biological activity, as it took place after a period of
intense photosynthetic activity, together with resuspension
by winds during the afternoon, (windiest time
of the day).
