2. Test Results . 



a. Borers . Teredlnldae were very active at this location 

 throughout the period of the test, the "breeding season apparently^ 

 extending from March to the middle of January. The attack rated very 

 heavy tin 19^5 and 19^6 tut only modei?ate in 19^7 • Limnoria eilso were 

 quite active throughout the period of the test. Die attack never rated 

 more than slight in 19^5 and. 19^6 tut attained a rating of medium 

 heavy in 19^7. 



b. Fouling Qrffanisms . Silt, algae, and invertebrate animals 

 belonging to 5 phyla contributed to fouling of the panels. The latter 

 con5)rised hydroide, encrusting and filamentous Bryozoa, barnacles and 

 amphipods, mussels emd Jingle-shells, and tunicates. Bydroids azid 

 barnacles occurred wi1di great frequency, the latter occurring in 

 unusual abundance. Filamentous Bryozoa occurred with considerably less 

 frequency, while the occurrence of the others, as well as the algae, 



was purely sporadic or occasional. 



5. Recent Addenda . At this station, the Teredinidae attack rated 

 as heavy in 19^8 and very heavy the following year. Llmnoria attained 

 a loedium heavy rating in 19^8 and a moderate rating in 19^9* Chelura 

 was plentiful in both years. 



185 



