Diet of chaetognaths Sagitta crassa and S. nagae in the yellow sea inferred from gut content and fatty acid analyses SCOPUS KCI

Title
Diet of chaetognaths Sagitta crassa and S. nagae in the yellow sea inferred from gut content and fatty acid analyses
Author(s)
Yoon, H.; Ko, A.-R.; Kang, J.-H.; Choi, J.K.; Ju, S.-J.
KIOST Author(s)
Yoon, Hyunjin(윤현진)Kang, Jung Hoon(강정훈)
Alternative Author(s)
윤현진; 강정훈; 주세종
Publication Year
2016
Abstract
To understand the diet of chaetognaths, the gut content and fatty acid trophic makers (FATMs) of Sagitta crassa and S. nagae, which are the most predominant species of chaetognath in the Yellow Sea, were analyzed. Gut contents of the two species examined by microscopic analysis revealed that copepods are the major components of the diet (> 70% of gut contents) and there was no significant changes in the gut contents of two species collected in spring and summer season. Although 16:0, 20:5(n-3) (Eicosapentaenoic acid) and 22:6(n-3) (Docosahexanoic acid), which are known as phytoplankton FA markers, were the most dominant among the fatty acids in both chaetognath species, the detection of copepod FA markers, 20:1(n-9) (Gadoleic acid) and 22:1(n-11) (Cetoleic acid), provided evidence that their food sources include copepods. These results suggest that S. crassa and S. nagae are carnivores and mainly feed on copepods in the Yellow Sea. © 2016, Korea Ocean Research and Development Institute. All rights reserved.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2299
DOI
10.4217/OPR.2016.38.1.035
Bibliographic Citation
Ocean and Polar Research, v.38, no.1, pp.35 - 46, 2016
Publisher
Korea Ocean Research and Development Institute
Subject
benthos; diet; fatty acid; invertebrate; marine environment; stomach content; Pacific Ocean; Yellow Sea; Chaetognatha; Copepoda; Sagitta crassa
Keywords
Chaetognath; Diet; Fatty acid; Gut content; Yellow Sea
Type
Article
Language
Korean
Document Type
Article
Publisher
Korea Ocean Research and Development Institute
Related Researcher
Research Interests

Biological oceanography,Zooplankton ecology,Introduction and dispersion of foreign species,생물해양학,동물플랑크톤 생리,생태,외래종 유입,확산

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