Chinese Journal of Applied Ecology
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ZHANG Sheng-li1, ZHANG An-guo2, YUAN Xiu-tang1, LIANG Bin1, LIU Shu-xi1
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Abstract: In order to elucidate the role of bottomcultured clams in the coastal nutrient cycle, the seasonal filtration, ingestion and biodeposition rates were in situ measured and carbon (C), nitrogen (N) and phosphorus (P) budgets of Ruditapes philippinarum among four seasons were modeled. The results showed that the scope for growth of R. philippinarum in carbon (SFGC), nitrogen (SFGN), and phosphorus (SFGP) all varied significantly among seasons, with the highest values in spring. Meanwhile, SFGC was negative in summer, SFGN and SFGP were always positive throughout the year. The seasonal variations of SFGC, SFGN and SFGP were -3.94-49.82 mg C·ind-1·d-1, 0.72-9.49 mg N·ind-1·d-1, and 0.15-3.06 mg P·ind-1·d-1, respectively. The net growth efficiencies in carbon (KC2), nitrogen (KN2), and phosphorus (KP2) also showed a distinct seasonal pattern among seasons, and ranked as KP2> KN2> KC2. The C, N, and P budgets illustrated that the R. philippinarum population relatively used more N and P than C for growth and efficiently transferred the pelagic primary production to a higher trophic level. The current study suggested that R. philippinarum bottomcultured at large scale might play a dominant role in the nutrient cycle of the coastal ecosystem and should be considered as an important ecological component in coastal areas.
ZHANG Sheng-li1, ZHANG An-guo2, YUAN Xiu-tang1, LIANG Bin1, LIU Shu-xi1. Carbon, nitrogen, and phosphorus budgets of bottomcultured clam Ruditapes philippinarum.[J]. Chinese Journal of Applied Ecology.
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URL: https://www.cjae.net/EN/abstract/abstract11745.shtml
https://www.cjae.net/EN/Y2015/V26/I4/1244