The productivity of San Cristobal Reef, Puerto Rico

Limnology and Oceanography



San Cristobal Reef, Puerto Rico, was the site of a community metabolism study based on a new upstream-downstream method with experimental channels 4 m deep. Net productivity rates varied from 0.03 to 1.85 g O2m–2 reef area·h­–1 (= 0.39; n = 59). Respiration measurements of one reef section from which light was excluded ranged from 0.26 to 0.48 g O2·m–2 reef area·h–1. The linear regression equation y = 0.58x – 0.18, where y = g O2·m–2 reef area·h­–1 and x = mEin·m–2·s–1, describes the correlation between light and metabolism at this site. Net primary productivity was 2.45 g O2·m–2 reef area and gross primary productivity 5.42. The ratio of gross primary productivity to 24-h respiration was 0.7. Productivity rates of this heterotrophic zone are lower than those reported for shallower reef zones with greater algal cover.

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Publication type Article
Publication Subtype Journal Article
Title The productivity of San Cristobal Reef, Puerto Rico
Series title Limnology and Oceanography
DOI 10.4319/lo.1979.24.2.0342
Volume 24
Issue 2
Year Published 1979
Language English
Publisher Association for the Sciences of Limnology and Oceanography, Inc.
Description 8 p.
First page 342
Last page 349
Country Puerto Rico
Other Geospatial San Cristobal Reef
Online Only (Y/N) N
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page
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