Observations on staminate flowers of Cymodocea serrulata in ex situ aquarium

Abstract

Seagrasses are capable of forming meadows by clonal growth and sexual reproduction. Cymodocea serrulata, a common and widespread seagrass species that can be found throughout the tropical Indo-Pacific, was previously never documented flowering in Singapore. However, in early January 2020, Cymodocea serrulata staminate (male) flowers were observed in an ex situ aquarium. Here, we document the development of staminate flowers. We also present the environmental conditions in the tanks and provide a comparison to literature. This observational record can aid in seagrass assessment and monitoring programme efforts.