@article{oai:ir.kagoshima-u.ac.jp:00007901,
 author = {NAKAMURA, Kaworu},
 journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University},
 month = {2016-10-28},
 note = {Surgical operations were undertaken to identify the medulla relating to ovary inhibition in the
optic ganglion of the prawn Penaeus japonicus. Local cuttings of the ganglion were treated upon
the eyestalk of females. The cutting levels were externally adjusted to each site of the
medullae. After 2 weeks rearing, the eyestalks were subjected to the histological certification
of the operation, and further the gonadosomatic index (GSI) was calculated respectively to
investigate the individual relation between the exerted site and the GSI. The group of all the
medullae removal and eyestalk-ablated showed relatively high values of the GSI (2.63±1.51, mean±S.D.) compared to the values of the medulla externa removal (1.32±0.41) or of that
remained (0.8). Based on the relation of the GSI with the situation of its medulla operated, the
medulla externa was considered to bear a principal part in the inhibitory mechanism of the
ovarian development of the prawn.},
 pages = {141--145},
 title = {Control Site of Ovarian Development in the Optic Ganglion of the Prawn Penaeus japonicus},
 volume = {37},
 year = {}
}