Growth of staghorn coral Acropora aspera (Dana) (Scleractinia: Acropridae) in relation to environmental factors at Kavaratti atoll (Lakshadweep Islands), India

Suresh, V R and Mathew, K J (1995) Growth of staghorn coral Acropora aspera (Dana) (Scleractinia: Acropridae) in relation to environmental factors at Kavaratti atoll (Lakshadweep Islands), India. Indian Joumal of Marine Science, 24 (2). pp. 175-176.

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Abstract

Skeletal extension and calcification were measured over 2 years in branches of the staghorn coral Acropora aspera from a shallow-water si te. Correlations were made between growth parameters and environmental variables monitored over the same period. Calcification .varied significal)tly (9.4- 17.4 mg. 28d - ') than skeletal extension (3.1 -4.7 mm. 28d -') and unlike extension, it varied significantly between seasons with lowest values during southwest monsoon (June-September). Seasonal reduction in calcification was probably associated with the reduced availability oflight due to increased cloud cover and sediments in water. Extension, however, seemed to be under the direct influence of currents and sediments. The effect of environmen tal factors seemed more critical to calcification.

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