Distribution of the Marine cladoceran Evadne spinifera In Waters adjacent to Korean Peninsula

한반도 주변 해역에서 해산지각류 Evaldne spinifera의 분포

Distribution of the marine cladoceran Evadne spinifera in waters adjacent to Korea was studied on the bases of samples collected during the Cooperative Study of the Kuroshio and Adjacent Regions, 1965-1974, and during the Exploitation Research of Marine Resources on the yellow Sea, September October 1992. This species was mainly occurred in August and September in the sea of Japan Distribution in the Yellow Sea was sparse. temperature and salinity ranged $23.42-28.24^{\circ}C$ and $32.11-24.20\textperthousand$, respectively. Maximum abundance of $11{\;}indiv./\textrm{m}^3$ was recorded in coastal waters of Honshu, Japan with $26.80^{\circ}C$ and $32.81\textperthousand$ water. E. spinifera was considered to be a stenothermal animal preferring high temperature.

국제 쿠로시오 공동조사 (1865-1974) 및 황해의 해양자원 개발연구 (9-10월, 1992) 기간중에 채집된 시료를 분석하여 한반도 주변 해역에서 출현하는 해산지각류 Evadne spinifera의 시공분포를 조사하였다. E. spinifera는 주로 동해에서 8, 9월에 집중적으로 출현하고 있었으며 최대출현량은 $11{\;}indiv./\textrm{m}^3$이었고 황해에서는 9월에 산발적으로 미량 출현하였다. 본종은 수온 $23.42-28.24^{\circ}C$, 염분 $32.11-24.20\textperthousand$ 범위에 서 출현하였으며 $26.80^{\circ}C$, $32.81\textperthousand$에서 최대 개체군을 형성하여 고온을 선호하는 협온 성종으로 밝혀졌다.