Effect of Photoperiod on Gonadal Steroid Hormone Levels and Reproductive Cycles of Northern Fur Seals (Callorhinus ursinus)

Naoki Tomita; Kaoru Kohyama; Takashi Koido; Akira Takemura

doi:10.3106/041.036.0405

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Naoki Tomita,^1,2,* Kaoru Kohyama,³ Takashi Koido,⁴ Akira Takemura⁴

¹1Graduate School of Science and Technology, Nagasaki University, 1–14 Bunkyo-machi, Nagasaki 852-852
²**Present address: Division of Avian Conservation, Yamashina Institute for Ornithology, 115 Konoyama
³2Izu-Mito Sea Paradise, 3-1 Uchiura Nagahama, Numazu, Shizuoka 412-0224, Japan
⁴3Faculty of Fisheries, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan

^*To whom correspondence should be addressed. E-mail: tomita@yamashina.or.jp

No abstract for this paper is available.

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Naoki Tomita, Kaoru Kohyama, Takashi Koido, and Akira Takemura "Effect of Photoperiod on Gonadal Steroid Hormone Levels and Reproductive Cycles of Northern Fur Seals (Callorhinus ursinus)," Mammal Study 36(4), 223-228, (1 December 2011). https://doi.org/10.3106/041.036.0405

Received: 10 September 2010; Accepted: 1 June 2011; Published: 1 December 2011

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