This study investigated how the morphology of Zostera marina plants differ in regards to their leaf lengths and root lengths between two different sides of the island Saltö. The physical factors which have an impact on this morphology were limited to winds, waves and sea bottom toughness. In the exposed site, wind and water movements were greater while the sea bottom was also tougher in comparison to the protected site. There was a statistically significant difference between the leaf lengths of each site but not between their root lengths. Studies such as these are crucial for replantation.