摘要： 营养盐在沉积物-水界面的扩散影响菲律宾蛤仔Ruditapes philippinarum的底播、菲律宾蛤仔和鳗草实生苗的互作，推测菲律宾蛤仔规格、丰度和活动稳定性影响营养盐的扩散。将不同丰度、规格的菲律宾蛤仔置入装有沉积物中，室内培养19天，并于第13、19天，研究营养盐在沉积物-水界面的交换通量。菲律宾蛤仔生物量、规格和丰度、活跃性影响营养盐在沉积物-水界面的交换通量，第13天，NO2--N、NH3-N、TN交换通量受菲律宾蛤仔规格影响，NO2--N和NH3-N交换通量随菲律宾蛤仔规格增大而增大。第13 和19天，NO2--N、NH3-N、TN、PO43--P交换通量受菲律宾蛤仔丰度影响，随菲律宾蛤仔丰度增大而增大。因此，评估滤食性贝类环境容量、贝类与海草的互作时，需考虑贝类生物量、规格和丰度的作用。
关键词:
菲律宾蛤仔,
营养盐,
沉积物-水界面,
生物扰动,
交换通量
Abstract: The bottom sowing of Manila clam and the interaction of Manila clam and eelgrass seedlings are affected by the exchange fluxes of nutrients at the sediment-water interface. It is considered that body size, abundance, and activity of Manila clam influence the exchange fluxes. To verify the hypothesis, Manila clams with different body sizes, abundances, and activities were cultivated by sediments for 19 d, during which the exchange fluxes were studied. The biomass, body size, abundance, and activity of Manila clam affected the exchange fluxes of nutrients. On the 13th day, the fluxes of NO2--N、NH3-N、TN were affected by body size, and the exchange fluxes of NO2--N and NH3-N increased as body size increased. On the 13th and 19th day, the exchange fluxes of NO2--N, NH3-N, TN, PO43--P were affected by the abundance and increased as abundance increased. Thus, the roles of biomass, body size, and abundance of shellfish should be considered to determine the carrying capacity for filter-feeding shellfish and clarify the interaction between shellfish and seagrass.
Key words:
Manila clam,
nutrients,
sediment-water interface,
biological disturbance,
exchange flux
魏祥涛, 刘召君, 葛长字, 宋建达, 黄国强, 侯文昊, 荣博文. 菲律宾蛤仔对沉积物-水界面营养盐交换通量的影响[J]. 渔业现代化, 2023, 50(1): 43-.
WEI Xiangtao , LIU Zhaojun , GE Changzi , SONG Jianda , HUANG Guoqiang , HOU Wenhao , RONG Bowen. Effect of manila clam on nutrients exchange fluxes at sediment-water interface[J]. Fishery Modernization, 2023, 50(1): 43-.