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Distribution of ichthyoplankton in the West coastal waters of Korea

서해연안 해역에 분포하는 부유성 난 및 자치어의 분포특성

  • YOUN, Byoung-Il (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute) ;
  • LEE, Seung-Jong (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute) ;
  • SOHN, Myoung-Ho (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute) ;
  • HAN, Song-hun (Fisheries Resources and Environment Division, Jeju Fisheries Research Institute) ;
  • LEE, Hyung-been (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute) ;
  • KIM, Maeng-jin (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute) ;
  • HAN, Kyung-Ho (Chonnam National University, Department of Aqualife Science)
  • 윤병일 (국립수산과학원 서해수산연구소) ;
  • 이승종 (국립수산과학원 서해수산연구소) ;
  • 손명호 (국립수산과학원 서해수산연구소) ;
  • 한송헌 (국립수산과학원 제주수산연구소) ;
  • 이형빈 (국립수산과학원 서해수산연구소) ;
  • 김맹진 (국립수산과학원 서해수산연구소) ;
  • 한경호 (전남대학교 수산과학과)
  • Received : 2019.04.11
  • Accepted : 2019.07.26
  • Published : 2019.08.31

Abstract

The ichthyoplanktons were sampled by Bongo net to study the distribution of the eggs and larvae in the West coastal waters of Korea during the study period (February, May, August and October of 2017). Collected fish eggs were divided into Engraulis japonicus and unidentified species. The most dominant species, Engraulis japonicus accounted for 79.52% of the total fish egg, which was followed by unidentified species (20.48%). The total of 36 taxa in fish larvae were identified based on morphological and molecular characteristics. Fish larvae were dominant by Gobiidae species. 48.30% of the total catch in abundance, which was followed by Engraulis japonicus (31.86%). These two taxa composed 80.16% of the total collected fish larvae. The seasonal diversity index of species from the collected fish larvae in the West coastal waters in 2017 was 0.625-1.883 and the evenness index was 0.380-0.865. In addition, dominance index was 0.618-0.920 and richness was 0.573-3.189.

Keywords

West coastal waters;Species composition;Bongo net;Dominant species

Acknowledgement

Supported by : 국립수산과학원

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