Long-term trends at CARICOMP seagrass stations, including observations on disturbances.

Biomass: total above-ground biomass of the community; Rel abund: relative abundance (biomass) of faster growing seagrass and algal species; Other seagrass: seagrass species other than Thalassia testudinum (mostly Syringodium filiforme); % Above / Total Biomass: percentage of above-ground of total biomass of T. testudinum (S. filiforme for site 14, because T. testudinum was absent in later years at station 33); Productivity: productivity of leaves of T. testudinum. Collapse of seagrass bed, * seagrass beds showed changes that potentially indicate with human-induced environmental deterioration. Trends: I increase, D decrease, n without change, - not determined, N expected change due to increasing nutrient load, T expected change due to increasing turbidity, NT expected change due to either increasing turbidity or nutrient load, changes without symbol were not consistent with expectations of water quality deterioration (See text for further explanation). Conditions at the beginning of monitoring: PRIST (relatively) pristine (undisturbed by humans); INT Moderate disturbance; DIST Disturbed (eutrophication, terrestrial runoff, or overfishing, from [26], [29], [47]). See Table S6 for information on regression lines. Source: 1. [48], 2. [49], 3. [50], 4. [51], 5. [29], 6. [52], 7. [33], 8. [53], 9. [38], 10. [44], 11. Pers. Obs. K. Koltes, 12.Pers.Obs. H.A Oxenford, 13. [54], 14. [55], 15. [56], 16. [57], 17. [58].