대체서식지에 조성된 거머리말(Zostera marina)의 이식 및 복원 연구

Abstract

We investigated natural habitat of Zostera marina and created replacement habitat to monitor for restoration of the habitat which is expected to be damaged at Cheonseong harbor in Busan. Depth of water for natural seagrass habitat at Cheonseong harbor was 1.2∼3.1 m and the water temperature was 7.42℃, salinity was 29.15 psu and pH was 8.05 in January, 2014. The density of Z. marina was 167.1±16.4 shoots/m2, the total length was 48.5±18.1 cm, the height of sheath was 9.1±2.8 cm and the width of leaf was 4.8±1.1 cm, respectively. We transplanted in December 2014 and monitored the replacement habitat during 9 months after transplanted. In the beginning, the density of Z. marina was decreased to 8.5±0.6 shoot/patch in January 2015 and was increased to 19.0±1.0 shoot/patch in April 2015. The total height were 733.1±29.0∼1,213.1±60.9 mm, the length of sheath were 95.9±5.5∼209.2±12.2 mm, the width of leaf were 5.7±0.1∼6.8±0.2 mm. It showed that all values were increased steadily until July and was decreased rapidly in August. Flowering shoot, which was not observed in the beginning of transplanting, started to be spotted in March and was continued to be seen during the monitoring period. We were able to observe seedling of germinated Z. marina at the replacement habitat next year.