Plankton of the Florida Current.
I. General Conditions
The hydrography and plankton of the Florida current off Miami were studied from June 1950 to February 1952. At the standard station occupied, T-S curves indicated that the surface waters on the Miami side of the current were predominantly of Yucatan Channel origin in the autumn-winter, and of Gulf of Mexico origin in spring-summer. There were temporary fluctuations, and on two occasions a third water mass of untraced origin occurred. Water mass changes were sufficient to mask any seasonal changes in temperature or nutrient salts, and the depth of the 15°C. isotherm proved an even better index of water mass than the T-S curve. The phytoplankton concentration generally followed that of nutrients, while that of zooplankton was more complex. An extremely high ratio of filterable nannoplankton to net-caught phytoplankton was found to be typical throughout the period. Fuller reports on the plankton will appear in later papers in this series.
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Document Type: Research Article
Publication date: 1952-01-01
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