UNCLASSIFIED 



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REPORT DOCUMENTATION PAGE 



READ INSTRUCTIONS 

 BEFORE COMPLETING FORM 



1. REPORT NUMBER 



CETA 82-6 



2. GOVT ACCESSION NO 



3. RECIPIENT'S CATALOG NUMBER 



4. TITLE (and Subtitle) 



A LOW-COST PLANTING TECHNIQUE FOR EELGRASS 

 (ZOSTERA MARINA L.) 



5. TYPE OF REPORT & PERIOD COVERED 



Coastal Engineering 

 Technical Aid 



6. PERFORMING ORG. REPORT NUMBER 



AUTHORfo; 



Mark S . Fonseca 



W. Judson Kenworthy 



Gordon W. Thayer 



8. CONTRACT OR GRANT NUMBERfsJ 



PERFORMING ORGANIZATION NAME AND ADDRESS 



National Marine Fisheries Service 



Southeast Fisheries Center, Beaufort Laboratory 



Beaufort, NC 28516 



G31632 



11. CONTROLLING OFFICE NAME AND ADDRESS 



Department of the Army (CERRE-CE) 

 Coastal Engineering Research Center 

 Kingman Building, Fort Belvoir, VA 22060 



12. REPORT DATE 



December 1982 



13. NUMBER OF PAGES 

 15 



14. MONITORING AGENCY NAME & ADDRESSfff dllletent from Controlling Office) 



15. SECURITY CLASS, (of this report; 



UNCLASSIFIED 



16. DISTRIBUTION STATEMENT (o( this Report) 



Approved for public release; distribution unlimited, 



17. DISTRIBUTION STATEMENT (of the abstract entered In Block 20, if different from Report) 



18. SUPPLEMENTARY NOTES 



19. KEY WORDS (Confirm 



osaary and identify by block i 



Cost evaluation 

 Current regime 

 Seagrass 



Sediment stabilization 

 Transplanting techniques 



20. ABSTRACT fCbntfaue aa reverse sfrfo tf n*jce&aaey and Identify by block number) 



Transplanting of eelgrass ( Zostera marina ) has undergone considerable experimental study in the 

 last decade, but with limited practical application. A new technique has been developed using bundles 

 of mature, vegetative shoots of eelgrass washed free of sediment and anchored in the bottom. Using 

 this technique, planting units have been successfully established in high (>1.6 feet per second) and 

 low (<1.6 feet per second) current regimes on grids of 2.0 and 2.6 feet, respectively. The production- 

 line efficiency of the technique greatly reduces planting costs. Methods developed for selecting wild 

 planting stock and anchoring planting units greatly increases planting success across the range of 

 current velocities in which eelgrass is found. 





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