Dissolved oxygen during Gymnodinium breve blooms along the Florida west coast, 1976–1978

Abstract

Concentration of dissolved oxygen was measured during phytoplankton blooms of Gymnodinium breve occurring along the west coast of Florida during 1976, 1977, and 1978. The dissolved oxygen (DO) levels during the most recent outbreak, occurring in September 1978, were measured on two occasions during predawn hours. At no time were the dissolved oxygen levels below 83% saturation, although the numbers of G. breve organisms were above the ichthyotoxic threshold level.

Key words:

• Gymnodinium breve
• Dissolved Oxygen