期刊
MARINE BIOLOGY RESEARCH
卷 12, 期 7, 页码 748-757出版社
TAYLOR & FRANCIS AS
DOI: 10.1080/17451000.2016.1183791
关键词
Food source; North Sulawesi; seagrass meadow; stable isotope analysis
资金
- China-Indonesia Maritime Cooperation Fund project
- 'China-Indonesia Bitung Ecological Station Establishment'
- National Natural Science Foundation of China [31101902]
- Natural Science Foundation of Fujian Province of China [2012J05074, 2014J01127]
- China Scholarship Council [201309660067]
- Scientific Research Foundation of the Third Institute of Oceanography, SOA [2015024]
Stable carbon and nitrogen isotope analysis was used to examine the food sources and trophic structure of 17 fish species and six groups of benthic macroinvertebrates in a seagrass meadow in North Sulawesi, Indonesia. The seagrass, their associated epiphytes, sediment organic matter (SOM) and particulate organic matter (POM) were identified to be the food sources, with delta C-13 values ranging from -19.49 (POM) to -9.66% (seagrass). The delta C-13 of the 23 fauna taxa were between -18.57 (Arothron manilensis) and -11.62 parts per thousand (Protoreaster sp.). For five of the six groups of benthic macroinvertebrates, seagrass and their epiphytes contributed more than 69.4%. For 14 of the 17 fish species, seagrass and their epiphytes are the main contributors. For 15 of the 17 fishes, the trophic levels inferred from SIA are lower than those from the previously reported diet composition analysis. These findings show that seagrass and their epiphytes are consumed by most of the fish and benthic macroinvertebrates, and are important for a large portion of the food web in seagrass meadows in the Coral Triangle area.
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