Title

Algal growth and decay in the San Joaquin River and Stockton deep water ship channel.

Poster Number

17

Format

Poster Presentation

Abstract/Artist Statement

Algal productivity in the Stockton Deep Water Ship Channel and San Joaquin River was investigated through the use of bench-scale laboratory experiments. Dissolved oxygen, pH, and chlorophyll a measurements were used to quantify productivity. A light incubation chamber was . constructed to facilitate the quantification of productivity and respiration of algae at various light intensities. Variability in the results could be attributed to time of day, seasonal conditions, and tidal cycles. A photosynthesis-irrad.iance curve was generated to estimate productivity as a function of light intensity. Estimates of respiration ranged from 3.1 to 5.9 [(mg 02/L)(mg Chi a/L)-1h-1]. These results will be incorporated into a comprehensive water quality model of the San Joaquin River.

Location

DeRosa University Center

Start Date

1-5-2001 9:00 AM

End Date

1-5-2001 5:00 PM

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May 1st, 9:00 AM May 1st, 5:00 PM

Algal growth and decay in the San Joaquin River and Stockton deep water ship channel.

DeRosa University Center

Algal productivity in the Stockton Deep Water Ship Channel and San Joaquin River was investigated through the use of bench-scale laboratory experiments. Dissolved oxygen, pH, and chlorophyll a measurements were used to quantify productivity. A light incubation chamber was . constructed to facilitate the quantification of productivity and respiration of algae at various light intensities. Variability in the results could be attributed to time of day, seasonal conditions, and tidal cycles. A photosynthesis-irrad.iance curve was generated to estimate productivity as a function of light intensity. Estimates of respiration ranged from 3.1 to 5.9 [(mg 02/L)(mg Chi a/L)-1h-1]. These results will be incorporated into a comprehensive water quality model of the San Joaquin River.