A usage of morpho-anatomical features of Ruppia cirrhosa (Petagna) vegetative organs for determination of the optimal depth of growing

The anatomic structure of the seagrass Ruppia cirrhosa vegetative organs has been researched for revealing the anatomic characteristics which can be used for indication of the optimal depth of growing. It has been revealed that root and rhizome parameters extend and reach the maximum points while depth increases. The anatomical parameters of leaves have ascertained as the most variable features, which decrease while depth grows, and that restricts Ruppia cirrhosa expansion at the depth of more than 7 m below s.l.