Flymoutli Harbo r, Mas s. — On June 14 Pacific eelgrass was planted 

 in the south end of pl.yTriouth Harbor, near Eel River. By July 9 this 

 planting had produceu t-riree flowering plants. All were qaite stunted, 

 however, none producing leaves more than 12 inches long. It is possible 

 that the heavy growths of Ulva -and Enter omorpha that covered the flats 

 at this point interfered somewhat with the plants. 



Marines, N. C. — Plants of the large Pacific coast fom were set 

 out on April 7, 1936, in New Pdver, at Marines, Onslow County, N. C, 

 among a growth of Ruppia and Halodule. They were set in about 1 foot of 

 somewhat brackish water. No subsequent check has been made at this 

 locality. 



Cape Remain Refuge, S. C — Eelgrass plants of the large Pacific 

 coast form were set out by Hotchkiss on April 8 in about 1 foot of water 

 in Mud Bay, Cape Roraain Refuge, Charleston Coimty, S. C. By May 3 this 

 planting had been entirely destroyed by flood debris from the muddy 

 Santee River. 



Re sul t s 



The experimental planting program met with no tangible success. 

 Every effort to transplant Zostera , both from the Pacific coast and from 

 other areas on. the Atlantic seaboard, resulted eventually in failure, 

 with the possible exception of the Plymouth Harbor planting, where a few 

 plants may yet survive. The temporary success of some of the plantings, 

 however, notably those in South Bay, Newport, and Plymouth, suggests 

 that another attempt might be made to introduce the Paciiic eelgrass in 

 Atlantic waters. The fact that the plants introduced in the three 

 localities mentioned produced flowers and immature fruit is somewhat 

 encouraging. 



The destruction of the eelgrass planted during these experiments 

 may have been due to the same organism that has done so much damage to 

 the Atlantic eelgrass. Specimens pf diseased leaves from Pacific plants 

 were submitted to C. E. Renn, of the Woods Hole Oceanographic Institute. 

 He reports the presence in each of the west-coast specimens examined of 

 Labyrinthula , v/hich he and maiay others believe is the causative agent of 

 the eelgrass disease. 



In making plantings it seems that clipping of leaves is -ondesir- 

 able, as uncut plants progressed more rapidly and showed no tendency to 

 be washed out with the tidal currents. This experience suggests that 

 improvement can be made in future plantings. 



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