Marine Biological Survey of Yap Lagoon

Amesbury, Steven S. (April 1978). Marine Biological Survey of Yap Lagoon (Report). Mangilao, GU: University of Guam. p. 169.

• Has attachment: File:IH6P5NS2.pdf

Abstract: The study would determine and map the general current patterns, and biological characteristics and features of the Yap Lagoon. Particular emphasis would be on the following parameters - 1) analyze the extent and magnitude of surface and subsurface currents in the three major harbor areas, i.e., Tamil Harbor, Gofenu Harbor, and Mil Harbor, 2) describe and map the major biological components, i.e., corals, marine plants, and conspicuous macroinvertebrates, 3) describe areas where large populations of fishes occur, and 4) seek the rearing grounds of fishes through the examination of larvae. The field studies were conducted on July 9-22, 1977 and January 8-13, 1978. The first trip, which consisted of a six-man team, was primarily spent circumnavigating the Yap Islands to obtain a general overview of the marine organisms both on the reef flats and in the deeper lagoonal holes. The lagoonal holes were of particular interest since these were the areas where fishing activities by the local people were concentrated. During this trip, the first set of water circulation data were obtained in the three harbor areas. The second trip of shorter duration, consisted of a four-man team and was primarily made to obtain the second set of water circulation data at the same three sites. This trip also afforded the opportunity to recheck certain observations made on the first trip.