CORRELATION ANALYSIS OF FUNCTIONAL GROUPS OF MACRO ALGAE AND SEAWEED BED INVERTEBRATES IN DIFFERENT HABITATS IN GOUQI ISLAND
Macroalgae are among the leading suppliers of bait and habitat.However,the interplay between macroalgae and seaweed bed invertebrates remains poorly understood,which has limited the in-depth understanding of macroalgae ecosystem service functions.In this study,12 water stations and three intertidal stations were deployed in the mussel culture area of Gouqi Island,Zhoushan Archipelago,Zhejiang,in East China Sea,from August 2021 to April 2022,and the survey of macroalgae and seaweed bed invertebrates was carried out over four quarters.The impact of macroalgae on seaweed bed invertebrates in different habitats on Gouqi Island was quantitatively analyzed based on the linear mixed-effort models(LMMs)and generalized additive models(GAMs),the biomasses of functional groups of macroalgae and seaweed bed invertebrates were fitted.The contribution rate of each algae functional group to the seaweed bed invertebrate community was analyzed using the glmm.hp package.Results show that although the influence of canopy algae on the phytophagous group in the mussel farming area showed a very significant linear relationship,every increase of 100 g of canopy algae could increase only 1.76 g of the phytophagous group,and the energy conversion between the two was less than the law of one-tenth of energy conversion in nature.Significant nonlinear correlations were observed between intertidal canopy algae detritivores and phytoplankton eaters.The role of macroalgae in recruiting species to use food supplies was limited,while the role of macroalgae in habitat supply was more prominent.Red algae,mainly coralline algae,were shown to be better habitat providers for the detritivorous and omnivorous groups.This study provided a new perspective for optimizing macroalgal resource management and formulating corresponding conservation strategies.
macroalgaefunctional groupinvertebratesGouqi Islandecosystem function
万方数据
维普
