[vc_row][vc_column][vc_column_text]To put some of the seagrasses ecological services into context, a soccer field of seagrass can absorb 5.8 kg of nitrogen per year (based on Posidonia meadow nitrogen uptake rates), equivalent to the treated effluent of 780 people (assuming a per capita rate of sewage production and secondary treatment). The same soccer field of seagrass can absorb 166 g of carbon per meter2 per year, equivalent to CO2 emissions from an automobile traveling 12,000 km.
The important ecological role of seagrasses and the recent reports of their global decline provide a strong impetus to develop a global seagrass conservation effort. If we see seagrasses as coastal canaries providing an early warning for coastal ecosystem degradation, we should follow the lead of the miners when their mineshaft canaries lost consciousness or died. They did not debate the cause(s) of the damage, they acted swiftly and decisively by first removing themselves from danger and then working to resolve the problem.
Source: Global trajectories of seagrasses, the biological sentinels of coastal ecosystems by William C. Denninson, University of Maryland.[/vc_column_text][/vc_column][/vc_row]