독도의 잘피

• Published in: Pada (Hanʼguk Haeyang Hakhoe) Vol. 22; no. 4; pp. 199 - 204
• Main Authors: 박정임, 김종협, 김영균, PARK, JUNG-IM, KIM, JONG-HYEOB, KIM, YOUNG KYUN
• Format: Journal Article
• Language: Korean
• Published: 한국해양학회 01.11.2017
• Subjects: 해양학; East Sea; Marine protected species; Dokdo; Seagrass; Phyllospadix japonicus
• ISSN: 1226-2978; 2671-8820

To examine the ecological characteristics of seagrasses growing naturally in Dokdo, shoot morphology and density of seagrasses in a study site each from Dongdo and Seodo, where seagrasses occurred, were investigated in September 2016. In the study sites, Phyllospadix japonicus Makino, a protected seagrass species, was found to be scattered, forming small clusters. P. japonicus shoots from the study sites in Dongdo and Seodo were morphologically similar. The mean leaf width was 2.0 mm at both study sites in Dongdo and Seodo. Numbers of leaves per shoot was 4.8 and 4.7, and the leaf lengths were 42.5 cm and 41.9 cm, in Dongdo and Seodo, respectively. The shoot densities were $3,500{\pm}334.2shoots\;m^{-2}$ and $2,275{\pm}415.1shoots\;m^{-2}$, in Dongdo and Seodo, respectively, with no significant difference. Shoot density and morphological chacteristics of P. japonicus in Dokdo were similar to those on the eastern coast of the Korean peninsula. 독도에 자생하는 잘피의 생태적 특성을 연구하기 위해 2016년 9월 독도해역을 탐색하여 잘피가 출현하는 동도와 서도의 각 1개 정점에서 조사하였다. 조사장소에는 보호대상해양생물인 게바다말이 군락을 이루며 산재하고 있었다. 동도와 서도에 출현하는 게바다말은 각각 평균 잎 수가 4.8개와 4.7개, 잎 폭은 2.0 mm, 개체 길이는 각각 42.5 cm와 41.9 cm로 유사하였다. 동도와 서도의 게바다말 평균 생육밀도는 각각 $3,500{\pm}334.2shoots\;m^{-2}$와 $2,275{\pm}415.1shoots\;m^{-2}$로 유의한 차이는 나타나지 않았다. 독도에 자생하는 게바다말은 주로 소형 군락을 이루고 있었으며 생육밀도는 한반도 동해연안에 출현하는 게바다말과 유사하였다.