2. Test BeBults . 



a. Borers . Teredlnldae were active at this location throughout 

 the period covered "by the test. The Ijreeding season is prohahly continuous. 

 While these "borers did not attain any great length, "because none of the test 

 panels were suhmerged for more than 3 months, their ahiandance and the 

 favorahle temperature of the water Justify rating the attack as very heavy. 

 Limnoria occurred only as a mere trace, hut would have "been more ahundant 

 had the test nin longer. 



h. Fouling Organ! sma . Silt, green algae, and invertehrate 

 animals "belonging to 5 phyla contri"buted to the fouling of the panels. 

 The latter included hydroids, filamentouB Bryozoa, serpulid worms, "barnacles, 

 and tunicates. Hydroids occurred with the greatest frequency; "barnacles, 

 serpulid worms, filamentous Bryozoa, and algae occurred with progressively 

 less frequency. 



The operation of the test hoeird, which unfortunately was interrupted 

 twice "by accidental loss, was not continued long enough to provide conclusive 

 Information concerning the development and prevalence of marine "borers and 

 fouling organiams at this location, "but it does show the general trend. 



130 



