AZJ.Ok Fouling Agents 



1. Silt . Silt occurred as traces to mostly light deposits on 

 f>\^^ the control panels, and as traces to light or medium deposits on all 

 the test panels at "both locations. 



2. Algae . Green algae, while absent at the Air Facility, 

 occurred as toraces to light grovrths on all the control and test panels 

 except one of each series at the Operating Facility. A trace of red 

 algae also was recorded on the last one of the test panels at the latter 

 location. 



5, InverteTDrate anlTrw.! phyla . 



a. Porifera (sponges ). From 2 to ij- colonies of .ein encrusting 

 sponge occurred on 2 of the test panels at the Air Facility, "but no sponges 

 were recorded at the Operating Facility, 



t. Coelenterata (hydroids ). Bydroids occurred on all the 

 panels, toth control and test, at each location. The control panels 

 mostly showed traces, while on the test panels thp growths ranged from 

 traces to light or moderate. Tutularla was the only form identified. 



c. Bryozoa (encrusting and filamentous ). Encrusting Bryxjzoa 

 occurred on 7 of the 11 control panels gind on 10 of the 11 test panels at 

 the Air Facility. They also occurred on 7 of the 11 panels in "both the 

 control and test series at the Operating Facility, ranging from a few to 

 numerous colonies at each location. Cryptosula pallaslema , Cryptosula sp., 

 ELectra crustulenta t Electra sp. , Khynchozoon phrynglossum , Savlgnyella 

 lafontl , Schzoporella unicornis » Sehizoporella sp. , and Waterslpora 

 cucullata were identified. Filamentous Bryozoa occurred on 6 of the 11 

 control panels and on 8 test panels at the Air Facility. At the Operating 

 Facility, they occurred on 5 of the 11 panels in "both the control and test 

 series, ranging from a mere trace to numerous colonies at each location. 

 Bugula dltrupae , B. flabellata, B. neritina, and B, sp. were identified. 



d. Annelida (annelid wonns ). A few serpulld ( Serpula ) tutes 

 occurred on 2. of the 11 control panels and on 6 of the 11 test panels at 

 the Air Facility. The m ^YiTmnn lengths recorded were 10 mm in the controls 

 and 20 mm on one of the test panels submerged for 5 months. At "Uie Operating 

 Facility, a few serpulld tvibee occuired on only one control panel and on 



3 of the test panels, ranging up to 15 nm in length on the latter. 



e. Arthropoda (crustaceans ). Balanus ('bamacles) occurred 

 on «n the panels, "both control and test, except on one of the controls 

 at the Air Facility. Three control panels were from 10^ to 50^ covered, 

 with a rrMTriTOiim diameter of 8 mm recorded. Six of the test panels submerged 

 on December 9, 19¥i-, and removed from 2 to 7 months later, respectively. 



125 



