Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) P. Mark Lokman and Gerard J. Vermeulen and Jan G.D. Lambert and Graham Young,Gonad histology and plasma steroid profiles in wild New Zealand freshwater eels (Anguilla dieffenbachii and A. australis) before and at the onset of the natural spawning migration. I. Females,Fish Physiology and Biochemistry,0920-1742,Springer Science and Business Media LLC,1998,19,4,325-338,https://cir.nii.ac.jp/crid/1361699994313860480,https://doi.org/10.1023/a:1007719414295