Seasonal variation in fatty acid composition of seston and the copepod Calanus sinicus (Brodsky, 1962) in Jiaozhou Bay and its trophic implications

doi:10.1007/s00343-011-0275-4

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	Seasonal variation in fatty acid composition of seston and the copepod Calanus sinicus (Brodsky, 1962) in Jiaozhou Bay and its trophic implications
	Liu Mengtan 1,2,3; Li Chaolun1 ; Sun Song1,3
刊名	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2011-11-01
卷号	29 期号:6 页码:1164-1173
关键词	Fatty Acid Seston Calanus Sinicus Trophic Relationships
ISSN号	0254-4059
DOI	10.1007/s00343-011-0275-4
文献子类	Article
英文摘要	The fatty acid compositions of seston and Calanus sinicus were investigated to study trophic relationships in Jiaozhou Bay. Principal component analysis was carried out to ordinate the fatty acid patterns of seston in stations and months. The results showed that diatoms were most abundant in the phytoplankton at station A5 (located in the northwest of the bay: 36 degrees 9'N, 120 degrees 20'E) and least abundant at station D7 (located outside of the bay: 35 degrees 59'N, 120 degrees 26'E). By contrast, dinoflagellates were most abundant at station D7 and least abundant at station A5. According to the annual variations of 16:1 omega 7 and 18:4 omega 3/16:1 omega 7, diatoms flourished mainly in spring and summer, while dinoflagellates bloomed exclusively in summer. A distinctive feature of the fatty acid composition of C. sinicus was the prevalence of 20:5 omega 3 and 22:6 omega 3. The higher content of 16:1 omega 7 over 18:4 omega 3 in females indicated that diatoms contributed more than dinoflagellates to the diet of C. sinicus. The feeding intensity of C. sinicus on diatoms was higher in spring and autumn than in other seasons. The herbivorous indicators 20:1 and 22:1 were comparatively low, suggesting that besides phytoplankton, C. sinicus might feed on a wider range of particles including organic detritus, bacteria and small copepods.; The fatty acid compositions of seston and Calanus sinicus were investigated to study trophic relationships in Jiaozhou Bay. Principal component analysis was carried out to ordinate the fatty acid patterns of seston in stations and months. The results showed that diatoms were most abundant in the phytoplankton at station A5 (located in the northwest of the bay: 36 degrees 9'N, 120 degrees 20'E) and least abundant at station D7 (located outside of the bay: 35 degrees 59'N, 120 degrees 26'E). By contrast, dinoflagellates were most abundant at station D7 and least abundant at station A5. According to the annual variations of 16:1 omega 7 and 18:4 omega 3/16:1 omega 7, diatoms flourished mainly in spring and summer, while dinoflagellates bloomed exclusively in summer. A distinctive feature of the fatty acid composition of C. sinicus was the prevalence of 20:5 omega 3 and 22:6 omega 3. The higher content of 16:1 omega 7 over 18:4 omega 3 in females indicated that diatoms contributed more than dinoflagellates to the diet of C. sinicus. The feeding intensity of C. sinicus on diatoms was higher in spring and autumn than in other seasons. The herbivorous indicators 20:1 and 22:1 were comparatively low, suggesting that besides phytoplankton, C. sinicus might feed on a wider range of particles including organic detritus, bacteria and small copepods.
学科主题	Marine & Freshwater Biology ; Oceanography
URL标识	查看原文
语种	英语
WOS记录号	WOS:000299039400003
公开日期	2012-07-03
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/11706]
专题	海洋研究所_海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Marine Ecol & Environm Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Jiaozhou Bay Marine Ecosyst Res Stn, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Liu Mengtan,Li Chaolun,Sun Song. Seasonal variation in fatty acid composition of seston and the copepod Calanus sinicus (Brodsky, 1962) in Jiaozhou Bay and its trophic implications[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2011,29(6):1164-1173.
APA	Liu Mengtan,Li Chaolun,&Sun Song.(2011).Seasonal variation in fatty acid composition of seston and the copepod Calanus sinicus (Brodsky, 1962) in Jiaozhou Bay and its trophic implications.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,29(6),1164-1173.
MLA	Liu Mengtan,et al."Seasonal variation in fatty acid composition of seston and the copepod Calanus sinicus (Brodsky, 1962) in Jiaozhou Bay and its trophic implications".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 29.6(2011):1164-1173.