Observations of mating behavior of the manta ray,manta birostris, at the ogasawara islands, japan

  title={Observations of mating behavior of the manta ray,manta birostris, at the ogasawara islands, japan},
  author={Kazunari Yano and Fumihiko Sato and Tomoko Takahashi},
  journal={Ichthyological Research},
On 11 July 1997, the mating behavior of wild manta rays,Manta birostris, was observed while skin diving off Chichijima. Ogasawara Islands, Japan, and recorded with 49 underwater photographs and about 20 minutes of video tape. The female manta ray involved was estimated as being approximately 5 m in dise width (DW) and the two males involved, approximately 4 m DW. Copulatory behavior of the two males appeared to be almost the same, copulation itself being of the abdomen-to-abdomen type… Expand

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