대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제35권12호
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  • Pages.953-959
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  • 2013
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  • 1225-5025(pISSN)
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  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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큰입배스 Micropterus salmoides의 위 내용물 분석을 통한 일산호수 내 큰입배스의 생육상태 및 수생동물의 다양성 간접 평가

Indirect Evaluation of Aquatic Animal Diversity in Ilsan Lake through the Analysis of the Growing Condition and Stomach Contents of Largemouth Bass, Micropterus salmoides

  • 김이태 (한국건설기술연구원 환경연구실) ;
  • 박재로 (한국건설기술연구원 환경연구실) ;
  • 김원재 (한국건설기술연구원 환경연구실)
  • Kim, I-Tae (Environmental Engineering Research Division, Korea Institute of Construction Technology) ;
  • Park, Jae-Rho (Environmental Engineering Research Division, Korea Institute of Construction Technology) ;
  • Kim, Weon-Jae (Environmental Engineering Research Division, Korea Institute of Construction Technology)
  • 투고 : 2013.10.16
  • 심사 : 2013.12.11
  • 발행 : 2013.12.30
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초록

본 연구는 도시 인공호수에서 서식하는 큰입배스 위 내용물 분석을 통해 먹이 다양성에 따른 성장 특성과 수생동물 군집 특성을 조사하였으며 대상호수는 국내에서 가장 큰 도시 인공호수 중 하나인 일산호수에 대하여 실시하였다. 큰입배스의 길이와 무게의 관계에 따라 Zone III(생태 구역)에서의 체중증가속도가 다른 Zone보다 더 빠른 것으로 나타났다. 어류 총 16종 및 9종이 각각 Zone III 및 Zone I, II(인공 구역)에서 관찰되어 Zone III의 어류의 종다양성이 Zone I, II에 비해 높았다. 상대중요성지수(IRI)는 Zone III에서 Zone I, II에 비해 더 다양하였으며, 공복율을 고려할 때 먹이 스트레스는 Zone I, II에서 더 심각한 것으로 나타났다. 어류의 군집분석 결과, 피라미 Zacco platypus가 우점종인 것으로 나타났고, 긴몰개 Squalidus gracilis majimae와 밀어 Rhinogobius brunneus는 Zone III에서만 풍부하게 발견되었다. Zone I, II에서 나타난 먹이종의 낮은 다양성을 고려할 때, 소금쟁이류 Heteroptera와 같은 절지동물문은 Zone I, II에서 Zone III에 비해 큰입배스의 위 속에서 상대적으로 높은 비율로 관찰되었다. 본 연구에 의해 큰입배스의 위 내용물 분석과 같은 간접적인 평가에 의해 수생동물 군집의 특성을 파악하는 것이 가능한 것으로 나타났다.

In this study, through the analysis of the growth condition and prey of the largemouth bass, we tried to understand the characteristics of the aquatic animal community depending on the composition and shape of a artificial lake. The evaluation was conducted for Ilsan lake which is one of the largest urban artificial lakes in Korea. Weight gain rate of the Zone III (eco-zone) was more rapid based on the relationship of length and weight of largemouth bass. Total 16 and 9 species of fish were found in each Zone III and Zone I, II (artificial zones), which represented significantly higher diversity of fish species in Zone III than Zone I, II. Index of relative importance(IRI) was more diverse at Zone III and when considering the hunger rate the food stress was more serious at Zone I, II. the proportion of the population of fish, Zacco platypus revealed to be the dominant species, and Squalidus gracilis majimae and Rhinogobius brunneus inhabited only Zone III naturally rich. On account of low prey species diversity of Zone I, II, the Phylum Arthropoda like Heteroptera showed relatively higher prey ratio in stomach of largemouth bass than that of Zone III. It was possible to figure out aquatic animal community characteristics indirectly through analyzing the stomach contents of largemouth bass.

키워드

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