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Free Content Standing Crop, Growth and Production of Calcareous Siphonales (Chlorophyta) in a South Florida Lagoon

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Production estimates of four genera of calcareous algae, Halimeda, Penicillus, Rhipocephalus and Udotea, were made in Card Sound, a lagoon 64 km south of Miami, Florida. Growth was measured directly in the field by periodically harvesting plants which emerged through rectangular strips of monofilament staked on the bottom. Production was measured directly by collecting 1-m2 samples of algae which grew through the net and indirectly by combining standing crop and life span data. Production by all four genera averaged 8.6 g ash-free dry weight/m2/year (4.2 g CaCO3) as estimated by the direct method and 38.4 g ashfree dry weight/m2/year (16.8 g CaCO3/m2/year) as estimated by the indirect method. Halimeda incrassata accounted for more than half the total production by all four genera. Growth of H. incrassata was maximal in late summer and lowest in midwinter. Sediment production is probably the most important function of these plants in Card Sound.

Document Type: Research Article

Publication date: April 1, 1979

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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