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Title: Standing Crop and Sediment Production of Reef-Dwelling Foraminifera on O'ahu, Hawai'i 
Author: Harney, Jodi N.; Hallock, Pamela; Fletcher, Charles H III; Richmond, Bruce M.
Date: 1999-01
Publisher: University of Hawai'i Press
Citation: Harney JN, Hallock P, Fletcher CH III, Richmond BM. 1999. Standing crop and sediment production of reef-dwelling foraminifera on O'ahu, Hawai'i. Pac Sci 53(1): 61-73.
Abstract: Most of O'ahu's nearshore and beach sands are highly calcareous
and of biogenic origin. The pale-colored constituent grains are the eroded
remains of carbonate shells and skeletons produced by marine organisms living
atop the island's fringing reefs and in the shallow waters near shore. Previous
studies have shown that the tests of symbiont-bearing benthic foraminifera
compose a substantial portion (up to one-fourth) of these organically produced
sands. We sampled a variety of reef flat and slope habitats to obtain standingcrop
data and production estimates for several sand-producing genera of reefdwelling
formninifera. We found that modem communities of these shelled
protists occur in dense numbers islandwide, reaching densities up to 105 individuals
per square meter of suitable substrate in the more productive habitats.
Further research on the contribution of foraminifera to beach, nearshore, and
offshore sands is planned for O'ahu and neighboring islands to describe their
roles in the sediment budget more completely.
ISSN: 0030-8870

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