Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
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Seasonal and Interannual Variation in Species Composition of Fish Assemblages Collected by Pots in the Southern Coast of East Sea, Korea

동해 남부 연안해역 통발에서 채집된 어류 군집의 계절변동과 연간변동

  • Park, Joo Myun (Department of Biological Sciences, Macquarie University) ;
  • Huh, Sung-Hoi (Department of Oceanography, Pukyong National University)
  • Received : 2015.09.30
  • Accepted : 2015.12.10
  • Published : 2015.12.31
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Abstract

The seasonal and interannual variation in the species composition and abundance of the fish assemblage were studied. Fish samples were collected seasonally over 4 year (2005 to 2008) using pots in the southern coast of East Sea. During the study period, a total of 32 fish species belonging to 24 families were collected. The dominant species were Conger myriaster, Paracentropogon rubripinnis, Liparis tanakae, Parapercis sexfasciata, Eptatretus burgeri and Clupea pallasii pallasii, which accounted for 91.9% of the total number of individuals collected. The number of species, number of individuals, biomass, and diversity fluctuated with season. The peak number of species and number of individuals occurred were in August 2008, whereas the biomass was the highest in August 2005 and diversity was in May 2008. The abundance of dominant species also showed some seasonal and interannual changes. A one-way analysis of similarity (ANOSIM) showed that the fish assemblage in 2008 was significantly different from those of 2005, 2006 and 2007, whereas there was no significant difference among seasons over 4 years.

본 연구는 동해 남부 연안해역 통발에서 채집된 어류 종조성의 계절 및 연간변동을 조사하였다. 어류 시료는 2005년에서 2008년까지 계절별로 채집하였다. 조사기간 동안 24과에 속하는 32종의 어류가 채집되었다. 우점종은 붕장어 (Conger myriaster), 미역치 (Paracentropogon rubripinnis), 꼼치 (Liparis tanakae), 쌍동가리 (Parapercis sexfasciata), 먹장어 (Eptatretus burgeri), 청어 (Clupea pallasii pallasii)였으며, 이들 6종은 총채집개체수의 91.9%를 차지하였다. 어류 군집의 출현종수, 개체수, 생체량, 다양도는 계절변동을 나타내었는데, 출현종수와 개체수는 2008년 8월에 가장 높았고, 생체량과 다양도는 2005년 8월에 가장 높았다. ANOSIM 분석 결과, 2008년 어류 종조성은 다른 년도와 유의한 차이를 나타내었다. 반면 계절별 채집 종조성은 유의한 차이를 보이지 않았다.

Keywords

References

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