Section ^k 



ETOIMEA, HEW CALEDOKIA — U. S. MVAL ADVAHCED BASE 



A5i)-.01 Location of the Test Station and Test Board 



A test "board of the panel type vas operated at the U. S. Haval 

 Advanced Base at Koumea, Nev Caledonia, from July 19^ 19^ to May 

 28, 19h6. No details were given as to the exact location of this test 

 hoard, which was designated hy the symbol USMC-1. Its operation was 

 discontinued with the cessation of military activity at this location. 

 U. S. Kaval Activities at Woiimea were placed in a caretaier status in 

 June 19^1-6 and were disestahlished in May 19^7. 



A54.O2 Bydrographic Jjata. - 



The depth of water where the test hoard was installed was 

 52 ft at mean la\r water; the tidal range averaged k.^ ft; the velocity 

 of the cun'ent was not more than one knot. The temperature of the water 

 was given as 68° F to 72° F, hut it is not clear as to Just what portion 

 of the year this applied, or whether it is the range for the year. The 

 water was repo:cted to he polluted hy sewers of the City of Noimiea and 

 hy ships tied "up at the piers. 



A54.O5 tfarine Borers 



1. Teredliiidae . Teredinldae , including Teredo ( Cornuteredo ) 

 medilohata ajad T. ( Lyrodus ) sp., occurred sporadically in 5 of the 22 

 control panels, hut all specimens were emhryonic or minute; the m a xim um 

 number recorded in any one panel was 15 specimens. The hreeding season 

 extends from the middle of July to the middle of March. Teredinidae 

 also occurred rather sporadically in I5 of the 22 test panels, hut mostly 

 in small numbers; in fact, the numher exceeded 8 in only 2 panels. 



One of these panels had from 80-100 specimens, ranging from embryonic 



to 10 mm in length. Panels removed from February to March of 19^5^ after 



8 months' submergence, had tunnels from 6O-I8O mm in length, while the 



greatest length recorded was in another panel with the same period 



of submergence, removed November 27. The maximum attack by Teredinidae 



at this location was considered to rate as moderate. 



2. Limnoria . Llmnoria occurred with great regularity and 

 abundance at this location. There was only a single control panel where 

 it was not recorded, and in one panel there was an average of I5 

 tunnels per sq. in. (l*980 in all). From the time the test board was 

 submerged in Jtily 19kh there was, in general, a gradual increase in 



the Llmnoria population until a peak rating of very heavy was attained 



250 



