Author Type

Faculty

Document Type

Article

Abstract

Colonies of Oculina varicosa were collected from nearshore, mid-shelf, and shelf-edge reefs off central eastern Florida. The shelf-edge reefs are inundated episodically throughout the year by upwelling of cool, nutrient rich water. On the inner shelf, cyclic seasonal factors predominate and upwelling intrudes only for a few weeks during the summer. Growth rates of the coral are significantly greater on the shelf-edge reefs than nearshore, even though at the shelf-edge temperatures are cooler and the coral lacks zooxanthellae. Species diversities of assemblages of decapods and mollusks associated with the coral are greater at the shelf-edge reef than at the mid- and inner-shelf reefs. It is suggested that the upwelling of nutrient rich water onto the shelf-edge Oculina reefs enhances the growth rate of the coral and facilitates the greater species diversity of the associated faunal communities compared to the inner-shelf reefs.

Publication Date

1983

Comments

Florida Atlantic University. Harbor Branch Oceanographic Institute contribution #355.

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