@article{oai:kochi.repo.nii.ac.jp:00001488,
 author = {Ueda, Hiroshi and Ishida, Teruo},
 issue = {1-2},
 journal = {Plankton biology and ecology},
 month = {},
 note = {application/pdf, Planktonic copepods were collected from ponds and reservoirs of dams in Okinawa, Ishigaki and Iriomote Islands, the southernmost area of Japan, and five cyclopoid species, Eucyclops cf. speratus, Mesocyclops ruttneri, M. thermocyclopoides, Thermocyclops crassus and T. taihokuensis, and a calanoid Sinodiaptomus sarsi were described. The two species of Mesocyclops and probably S. sarsi are recorded for the first time from Japan and T. taihokuensis for the first time from the Ryukyus. The most abundant copepod was T. crassus except for in the reservoirs of dams on Ishigaki Island, where T. taihokuensis and M. thermocyclopoides were dominant. A comparison with Kiefer's study of more than 50 years ago on a pond in Okinawa Island indicates that the copepod fauna in the pond has apparently changed. Eutrophication and introduction of African cichlid fish are considered as possible causes. The copepod fauna in Okinawa differs from that on the mainland of Japan in that some species which are common in the latter are absent in the former where S. sarsi is instead common.},
 pages = {41--54},
 title = {Species composition and description of limnoplanktonic copepods from Okinawa},
 volume = {44},
 year = {1997}
}