Publications about South East Queensland

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Phytoplankton productivity response to nutrient concentrations, light availability and temperature along an Australian estuarine gradient (Page 1)

Phytoplankton productivity response to nutrient concentrations, light availability and temperature along an Australian estuarine gradient

O'Donohue MJH and Dennison WC ·
1997

Phytoplankton productivity and the factors that influence it were studied in the Logan River and southern Moreton Bay, a large embayment on the east coast of Australia. Phytoplankton productivity, dissolved and total nutrient concentrations, and turbidity were determined throughout high and low rainfall periods to characterize light and nutrient influences on productivity.

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Effect of Water Motion on Coral Photosynthesis and Calcification (Page 1)

Effect of Water Motion on Coral Photosynthesis and Calcification

Dennison WC and Barnes DJ ·
1988

Water motion effects on metabolism of a common reef-building coral, Acropora formosa Dana, were studied utilizing laboratory incubations. Net photosynthesis and respiration were significantly reduced (≈ 25% lower) in unstirred conditions compared with stirred conditions. Dark calcification was reduced by ≈60% in unstirred conditions. Light-enhanced calcification appeared to be reduced by ≈ 25% in unstirred conditions; however, this effect was not statistically significant.

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