폐쇄공간 송수관로 수역내 민물담치의 생태특성

Ecological Characteristics of Limnoperna fortunei in an Enclosed Facility of Water Supply Pipeline

  • 신이숙 (한국수자원공사 K-water연구원) ;
  • 정선아 (한국수자원공사 K-water연구원) ;
  • 신재기 (한국수자원공사 K-water연구원)
  • Shin, Yee-Sook (K-water Research Institute, Korea Water Resources Corporation) ;
  • Chong, Sun-A (K-water Research Institute, Korea Water Resources Corporation) ;
  • Shin, Jae-Ki (K-water Research Institute, Korea Water Resources Corporation)
  • 발행 : 2013.05.30

초록

In this study, the ecological characteristics of Limnoperna fortunei were surveyed as a preceding research to solve the problem such as biofouling or biowaste caused by those organisms in the closed water pipeline. Limnoperna fortunei was collected not in the main reaches of Somjin River but inside and outside of the intake tower which is located in the lower part of Sueo Reservoir. The dense populations were found at the inlet mouth and near part of the pipeline. Their byssuses were formed as a thick and tightly interwind mat. The rusted parts of the pipeline hold relatively more shells than those of the normal parts. Average count of the numbers ranged $12.1{\sim}136.5ind./m^2$ through the sampling stations (A,B and C). The amount of attached shells at each station were A=386, B=258, and C=71, respectively. The relationships of shell height-length and shell length-width were proportional. The majority sizes in each station ranged A=20.01~22.00 mm (33.9%), B=10.01~14.00 mm (51.2%), and C=18.01~20.00 mm (22.5%), 24.01~26.00 mm (21.1%), respectively. Most of the bigger size of shells on C station was found dead. The ecological habitat seemed less suitable for Limnoperna fortunei when they located farther away from the intake tower of reservoir. From now on, it is necessary to consider the continuous monitoring of this organism.

키워드

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