Locality: Bikini Atoll. Date: Personnel: Weather: Arji to Enyu. Same August 23, 1964. Sunday. 14. Good. Water conditions: Calm. Lewis and Donaldson went plankton collecting in A.M. Four tows were made with 2 nets hauled at a time for 30 minutes a tow--a total of 2 hours. the Wide Passage. lagoon Tows were made at the western end of This should produce a mixture of oceanic and plankton. Jackson went back to Arji islet in the A.M. rat traps. to pick up his The trap line had been set in sedge growths and in mixed communities with Messerschmidia dominant. Competition from hermit crabs was most severe. Only Polynesian rats were caught None were pregnant, 14 females examined, (8 male and 15 female). though all females were sexually mature. 10 had had previous Of litters. No trapping was done around the old installations, but it is believed that only Polynesian rats would have been found here. While a few rats were seen abroad during daylight hours, this population does not have the diurnal characteristics of that on Enyu. At 1300 the ship moved across the Wide Passage and anchored at Enyu Islet. observation, Everyone went ashore for one last collecting, . or scrounging trip. The crew worked until after