EE FTES TE Ra Salliea seem” SebBaieDTT a iea T g foo ce ~ ne ~ fos : } — ~ RasST nen . Cn ‘March 1977 - . 2: Chief, wet Enewetak Planning T Group AO S4O| m: Medical Entomology Survey Officer t: Medical Entomological Surveillance of Enewetak Atoll 1. OTT ae ae fe } = GENERAL: a. b. By the direction of DASG a medical entomological survey was conducted on selected coral islets of the Enewetak Atoll to determine all real and potential entomological problems to be encomntered during cleanup operations. 7 hn Biologically and ecologically the islets are still evetyving-andrepresent a fragile and unstable biological community. The introduction of higher animal life forms has been artifici.l. This situation has ¥. allowed a number of species to inhabit the islets unchecked by natural predation. c. A variety of factors have successfully limited the t!c establishment of various pests. 1) os To, . Limited accessability of the islets. 2) High winds. 3) d. - 2. \ma \ : rE C | Limited land area, breeding sites, appropriate food sources and harborage. These factors have, for the most part, restricted the establishment of medically important arthropoda on the islets. nae c METHODOLOGY: a. A total of 12 islets were selected for surveillance. Selection was based on the following criteria: . 1) Size. 2) Vegetation and structural harborage. 3) Operational aspects related to cleanup mission, 4) Information provided by Mid Pacific Marine Laboratory civilians and natives. S) Information provided by engineers surveying various islets. hove (MPML) ro