tive catalogue will be as completely illustrated 
as possible, will contain keys for quick iden¬ 
tification, together with color descriptions, 
and will include a statement on the ecology of 
each species. 
B. A general report prepared by Dr. L.P. SCHULTZ 
on reef fish investigations at Bikini, including 
a classification of habitats, the distribution 
of fishes, collecting methods, and species ratios 
For the latter, final data will come from the 
report described in A above. 
The foregoing reports, when completed, will be 
submitted to the Secretary of the Smithsonian Institution, 
and will be available to the Chief of the Armed Forces 
Special Weapons Project. 
• Mention has already been made of the fact (see Section 
3.005) that a survey of reef and lagoon fishes was conduc¬ 
ted at Bikini Lagoon in 1946, prior to Tests A and B, 
Subsequently, the lagoon waters were subjected to blast 
and radioactivity effects, to contamination by oil from 
target ships, and to general pollution owing to the pre¬ 
sence of ships and men in the area. Whatever the tempo¬ 
rary effect of these factors may have been, no changes 
were observed in the fish fauna in 1947. Table II includes 
a designation of the 1947 collecting stations. 
t 
Of course population pressure from all sides are very 
great in an environment like thatat Bikini, and it is 
axiomatic that if an area becomes depopulated but remains 
habitable it will promptly be repopulated by (a) re¬ 
production of the indigenous fauna accompanied by an in¬ 
creased rate of survival, or (b) migration of individuals 
from contiguous areas. Such considerations may account 
for the fact that the fish population at Bikini appeared 
to be about the same in 1947 as it had been in 1946. For 
not only was this the case, but in addition, the species 
that were most numerous in 1946 still enjoyed the same 
rank in 1947, and no species found in 1946 appeared to be 
missing. As a matter of fact, six species taken in 1947 
were not collected during 1946. 
Larval and post-larval stages of surgeon fishes 
( Acanthurus triostegus ), and the young of round herring 
(Family Dussumieridae) and lizard fishes (Family Synodonti- 
dae) were observed in the lagoon waters. Gobiodon cltrinus 
was nesting among corals of the genus Acropora , and sharks 
exhibited normal embryos when dissectecH Milt (containing 
sperms) was flowing readily from the shark pilot ( Echenels 
nacrautes ), the damsel fish ( Abudefduf sordidus ), the 
surgeon fish, and the ocean skipjack ( Katsuwonus pelamis). 
