Fish were positively correlated with PC1 ( r = .63, p = .02), while jellyfish niche widths were not, and in contrast showed a negative trend with PC2 such that their niche widths decreased with urbanized land cover ( r = −.40, p = .13).
Correlations between predictor variables and metrics of trophic overlap were not significant (Table 3 ), although fish–jellyfish overlap showed a positive trend with PC1 ( r = .3, p = .25) and a negative trend with PC3 ( r = −.34, p = .19). 4 Discussion 4.1 General patterns at the species, assemblage, and community level Our findings provide a broad picture of pelagic fish and jellyfish trophic structure across an urbanizing estuary.