subjecting said algal spores to floway operating conditions so as to grow algae forming an algal turf in {HEAD ~ said water}, said algal turf having a surface comprising {TAIL ~ cell walls} 
subjecting said algal spores to floway operating conditions so as to grow algae forming an algal turf in { HEAD ~ said water } , said algal turf having a surface comprising { TAIL ~ cell walls }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL