| Summary: | The model explores (1) the direct and indirect effects of CO 2 enrichment on primary production (turf biomass), food abundance, and food intake by fishes (top 2 levels within each species) and (2) the effects of CO 2 enrichment and food intake on reproduction, energy storage, growth, body condition, and physiological maintenance (anti-oxidative defence TAC, and oxidative damage MDA) of fishes (bottom level for each species) for male and female common triplefins ( A , B ), crested blenny ( C , D ), blue-eyed triplefin ( E , F ), and Yaldwyn’s triplefin ( G , H ). Arrows represent standardised unidirectional relationships and arrow widths shows the strength of each interaction (see S5 and S7 Tables for estimated effects), with black arrows showing positive relationships and red arrows negative ones. The n (sum of fishes from controls and vents) and R 2 (degree of variance explained by the linear regressions) for significant pathways for each individual linear model are also shown; arrows and R 2 for nonsignificant pathways ( p > 0.05) were omitted. MDA, malondialdehyde; SEM, structural equation model; TAC, total antioxidant capacity. (PDF)
|
|---|