Stable isotopes in aquatic food web of an artificial lagoon in the Hangzhou Bay, China
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Stable isotopes in aquatic food web of an artificial lagoon in the Hangzhou Bay, China
Journal of Oceanology and LimnologyVol. 28, Issue 3, Pages: 489-497(2010)
Affiliations:
Key and Open Laboratory of Marine and Estuarine Fishery Resources and Ecology Ministry of Agriculture East China Sea Fishery Research Institute Chinese Academy of Fishery Science
Quan, W., Shi, L. & Chen, Y. Stable isotopes in aquatic food web of an artificial lagoon in the Hangzhou Bay, China., Chin. J. Ocean. Limnol. 28, 489–497 (2010). https://doi.org/10.1007/s00343-010-9037-y
DOI:
Quan, W., Shi, L. & Chen, Y. Stable isotopes in aquatic food web of an artificial lagoon in the Hangzhou Bay, China., Chin. J. Ocean. Limnol. 28, 489–497 (2010). https://doi.org/10.1007/s00343-010-9037-yDOI:
Stable isotopes in aquatic food web of an artificial lagoon in the Hangzhou Bay, China
摘要
Abstract
Stable isotope values
δ13C and δ15N
were determined for four primary producers and 19 dominant consumers in a small artificial lagoon located in Hangzhou Bay. Based on these results the major pathways for energy flow and trophic structure of the artificial lagoon ecosystem were characterized. The mean δ13C values for the 19 consumers ranged from −22.99‰ to −14.24‰. Apart from so-iny mullet Liza haematocheila
the other 18 consumers had intermediate δ13C values between those of epibenthic microalgae and particulate organic matter (POM). The results of a multiple source linear mixing model (IsoSource model) indicated that 50% or more of the organic carbon in the tissues of most consumers was derived from epibenthic microalgae. This indicated that these primary producers were the main food source fueling the lagoon food web. The mean δ15N values for the 19 consumers varied between 4.93‰ and 12.97‰ and indicated four trophic levels in the lagoon. Four macroinvertebrates and zooplankton represented the primary consumers
whilst the other 14 consumers occupied the secondary and tertiary consumer levels. The 19 consumers were divided into three trophic guilds (detritivores/suspension feeders
omnivores and carnivores).
关键词
Keywords
references
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