Interacting effects of habitat structure and seeding with oysters on the intertidal biodiversity of seawalls

Table 2. Summary of the results of general linear models testing the effects of microhabitats (crevices/ridges) on the number of live seeded S. glomerata, and the effects of the microhabitats and seeding with native bivalves on the percentage cover of S. glomerata, the species density and abundances (percentage cover, counts or MaxN) of sessile taxa, mobile taxa, benthic and pelagic fishes. Details of these analyses are given in supplementary material S4- S5. NANot applicable, nsp>0.05, �p < 0.05, ��p < 0.01, ���p < 0.001. Factors Number of live seeded S. glomerata Cover of S. glomerata Species density of sessile taxa Cover of sessile taxa Species density of mobile taxa Counts of mobile taxa Species density of cryptobenthic fishes MaxN of cryptobenthic fishes Tile: Microhabitats ��� ��� ns ns ��� ��� ns ns Tile: Seeding na �� ns ns ns ns � �� Tile: Microhabitats × Seeding na ��� ns ns �� � ns ns Tile: Site ns ns ns ns ns ns ns ns Month ns ns ��� ��� ns Tile: Site x Month ns ns ns ns ns Tile: Microhabitat x Tile: Site ��� ns ns ns ns ns ns ns Tile: Seeding x Tile: Site na ns ns ns ns ns ns ns Tile: Microhabitat x Month ns ns ns ��� ns Tile: Seeding x Month na ��� ns ns ns Tile: Microhabitat x Month x Site ��� ns ns ns ns Tile: Seeding x Month x Tile: Site na ns ns ns ns Tile: Microhabitat x Tile: Seeding x Tile: Site na ns ns ns ns ns ns ns Tile: Microhabitat x Tile: Seeding x Month na � ns ��� ns Tile: Microhabitat x Tile: Seeding x Tile: Site x Month na ns ns ns ns

https://doi.org/10.1371/journal.pone.0230807.t002 Fig 4. Effect of seeding with oysters (unseeded vs. seeded) and i) habitat structure (flat vs. complex tiles) or ii) microhabitat identity (crevice vs. ridge, on complex tiles) on the mean (+/-SE) species density of a) sessile algae and invertebrates, b) mobile invertebrates, c) benthic fishes and d) pelagic fishes (n = 5). Invertebrates and algae were sampled destructively, and fish were measured in situ at 12 months following tile deployment. Data are pooled across sites. https://doi.org/10.1371/journal.pone.0230807.g004 PLOS ONE Effects of microhabitats and seeding with oysters on intertidal biodiversity PLOS ONE | https://doi.org/10.1371/journal.pone.0230807 July 16, 2020 11 / 21