31. Under natural conditions Suttle Lake would probably be classified trophic state is eutrophic. 32. In China, prawns are cultured along with integrated multi-trophic systems. 33. Fisheries could also indirectly affect the trophic structure and foraging methods of seabirds. 34. Ectomycorrhizal fungi increase primary production in host plants, with multi trophic effects. 35. However, the intermediate trophic level is only represented by one or two species. 36. This realization has made trophic classifications more complex. 37. These complex multitrophic interactions involve more than two trophic levels in a food web. 38. Food webs depict energy flow via trophic linkages. 39. A common metric used to quantify food web trophic structure is food chain length. 40. Fish that occupy the higher trophic levels are less efficient sources of food energy.
