Compilation of trophic positions of marine biota from the central and Northea...

Fractional trophic levels (i.e., trophic positions) describe the position of organisms within food webs and help define their functional roles in ecosystems (Odum & Heald,...分数营养级（Fractional trophic levels，即营养位trophic positions）可用于描述生物在食物网中的位置，并有助于明确其在生态系统中的功能角色（Odum & Heald，……）