Section 57 

 AUCKLAHD, MIW ZEALAJH) — U. S. MVAL BASE 



A57 . 61 Location of the Test Station and Test Board 



A test 'board of the panel type was Installed September I6, 19^^ 

 adjacent to concrete piles at the end of Kings Wharf in Waitemata Harbor 

 at Auckland, New Zealand. This board was operated until November I6, 19^h, 

 when this Base was deconnnissioned, interrupting the test after 2 test 

 panels and the acconrpanylng control panels had been sent for examination. 

 It was designated by the symbol USOTE-1. 



On July lij-, 19i*-5, a new and more appropriate location was selected, 

 and the second test hoard was instaJ-led adjacent to both wood and concrete 

 piling at the end of the Export Wharf in the same harhor. This was 

 done through the cooperation of the U. S. Joint Purchasing Board Puhlic 

 Works Department, Millars Yard, the Strand, Auckland. The operation 

 of this test board was discontinued with the forwarding of the last set 

 of panels on December 15 ^ 19^5* 



A57.02 Hydrographlc Data 



The first test board was submerged in water from 20 to 50 ft 

 deep where the tidal range was 12 ft and the current was negligible. The 

 tenrperatiire of the water at the time of installation was 55° F« There 

 was very little sewage and silt to pollute the water. 



The second board was submerged in wetter from 25 to 55 ft deep 

 where the tidal range was 10 ft and the strength of the current was only 

 tidal. Tlie temperature of the water at the time of installation was 

 55° F. The pollution here was reported to be negligible. 



A57.O5 Marine Borers 



1. Teredlnidae . Teredlnldae , including Teredo sp., showed 

 considerable activity on the panels at both locations, but in neither 

 the 2-month period during which the first test board was operated 

 nor the 6-month period during which the second test bosird was operated 

 did they develop beyond the embryonic or minute stages in either the 

 control 01- test panels. They occurred in both the control panels from 

 the first location and in the first 5 of the 6 panels from the second 

 location, but the greatest number in any one panel from either location 

 did not exceed 15. The breeding season extended from the middJLe of 

 June through October and probably longer. All the test pajiels except 

 the first one from the first location showed Teredlnldae, the maximum 



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