英文論文
| 2021 |
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Ayami Sekizawa, Yurika Tsurumi, Natsuki Ito and Yasuhiro Nakashima (2021/09) Another usage of autotomized penis. Journal of Ethology 39(3): 319-328. (online first, 15 May 2021) (open access, Editor's Choice 2021) |
| 2019 |
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Ayami Sekizawa, Shin G. Goto and Yasuhiro Nakashima (2019) A nudibranch removes rival sperm with a disposable spiny penis. Journal of Ethology 37(1): 21-29. (online first, 27 October 2018) (open access, Editor's Choice 2019) |
| 2018 |
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Ayami Sekizawa, Ritsuno Yama and Yasuhiro Nakashima (2018) Biological differences between Chromodoris reticulata and Chromodoris tinctoria (Opisthobranchia: Nudibranchia). Venus: Journal of the Malacological Society of Japan 76(1-4): 45-52. |
| 2013 |
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Ayami Sekizawa, Satoko Seki, Masakazu Tokuzato, Sakiko Shiga and Yasuhiro Nakashima (2013) Disposable penis and its replenishment in a simultaneous hermaphrodite. Biology letters 9(2):20121150 (online first, 13 February 2013) (open access, Most downloaded articles from 2013) |
| 2012 |
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Sachi Yamaguchi, Kota Sawada, Yasuhiro Nakashima and Satoshi Takahashi (2012) Sperm as a paternal investment: a model of sex allocation in sperm-digesting hermaphrodites. Theoretical Ecology 5(1): 99-103. (online first, 3 November 2010) |
| 2011 |
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Noriyosi Sato, Ayami Sekizawa, Satoshi Awata, Hiroyuki Munehara and Yasuhiro Nakashima (2011) Isolation and characterization of microsatellite markers in the nudibranch, Chromodoris tinctoria. Venus: Journal of the Malacological Society of Japan 69(3): 214-217. |
| 2010 |
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Shohei Suzuki, Tetsuo Kuwamura, Yasuhiro Nakashima, Kenji Karino and Masanori Kohda (2010) Social factors of group spawning as an alternative mating tactic in the territorial males of the threespot wrasse Halichoeres trimaculatus. Environmental Biology of Fishes 89(1): 71-77. |
| 2009 |
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Satoko Seki, Masanori Kohda, Gousuke Takamoto, Kenji Karino, Yasuhiro Nakashima and Tetsuo Kuwamura (2009) Female defense polygyny in the territorial triggerfish, Sufflamen chrysopterum. Journal of Ethology 27(2): 215-220. |
| 2008 |
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Shohei Suzuki, Kyoko Toguchi, Yoshimi Makino, Tetsuo Kuwamura, Yasuhiro Nakashima and Kenji Karino (2008) Group spawning results from the streaking of small males into a sneaking pair: male alternative reproductive tactics in the threespot wrasse Halichoeres trimaculatus. Journal of Ethology 26 (3):397-404. |
| 2007 |
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Tetsuo Kuwamura, Shohei Suzuki, Naomi Tanaka, Eiji Ouchi, Kenji Karino and Yasuhiro Nakashima (2007) Sex change of primary males in a diandric labrid Halichoeres trimaculatus: coexistence of protandry and protogyny within a species. Journal of Fish Biology 70(6):1898-1906. |
| 2003 |
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Yoichi Sakai, Kenji Karino, Tetsuo Kuwamura, Yasuhiro Nakashima and Yukiko Maruo (2003) Sexually dichromatic protogynous angelfish Centropyge ferrugata (Pomacanthidae) males can change back to females. Zoological Science 20(5): 627-633. |
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Gousuke Takamoto, Satoko Seki, Yasuhiro Nakashima, Kenji Karino and Tetsuo Kuwamura(2003) Protogynous sex change in the haremic triggerfish Sufflamen chrysopterus (Tetraodontiformes). Ichthyological Research 50(3): 281-283. |
| 2002 |
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Tetsuo Kuwamura, Naomi Tanaka, Yasuhiro Nakashima, Kenji Karino and Yoichi Sakai (2002) Reversed sex-change in the protogynous reef fish, Labroides dimidiatus. Ethology 108(5): 443-450. |
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Yoichi Sakai, Kenji Karino, Yasuhiro Nakashima and Tetsuo Kuwamura (2002) Status-dependent behavioural sex change in a polygynous coral-reef fish, Halichoeres melanurus. Journal of Ethology 20(2): 101-105. |
| 2000 |
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Takuya Kura and Yasuhiro Nakashima (2000) Conditions for the evolution of soldier sperm classes. Evolution 54(1): 72-80. |
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Tetsuo Kuwamura, Kenji Karino and Yasuhiro Nakashima (2000) Male morphological characteristics and mating success in a protogynous coral-reef fish, Halichoeres melanurus. Journal of Ethology 18(1): 17-23. |
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Yasuhiro Nakashima, Yoichi Sakai, Kenji Karino and Tetsuo Kuwamura (2000) Female-female spawning and sex change in a heremic coral-reef fish, Labroides dimidiatus. Zoological Science 17(7): 967-970. |
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Nozomi Mizushima, Yasuhiro Nakashima and Tetsuo Kuwamura (2000) Semilunar spawning cycle of the humbug damselfish Dascyllus aruanus. Journal of Ethology 18(2): 105-108. |
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Kenji Karino, Tetsuo Kuwamura, Yasuhiro Nakashima and Yoichi Sakai (2000) Predation risk and the opportunity for female choice in a coral reef fish. Journal of Ethology 18(2): 109-114. |
| 1998 |
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Tetsuo Kuwamura and Yasuhiro Nakashima(1998) New aspects of sex change among reef fishes: recent studies in Japan. Environmental Biology of Fishes 52(1-3): 125-135. |
| 1996 |
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Yasuhiro Nakashima, Tetsuo Kuwamura and Yutaka Yogo (1996) Both-ways sex change in monogamous coral gobies, Gobiodon spp. Environmental Biology of Fishes 46(3): 281-288. |
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Eiji Yoshioka and Yasuhiro Nakashima (1996) Distribution of four species of Acanthopleura (Polyplacophora: Chitonidae) in Sesoko Island, Okinawa. Venus: The Japanese Journal of Malacology 55(1): 41-49. |
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Tetsuo Kuwamura, Yasuhiro Nakashima and Yutaka Yogo (1996) Plasticity in size and age at maturity in a monogamous fish: effect of host coral size and frequency dependence. Behavioral Ecology & Sociobiology 38(6): 365-370. |
| 1995 |
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Yasuhiro Nakashima(1995) Can small male shrimps achieve copulation in the presence of larger ones? Journal of Ethology 13(1): 9-16. |
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Yasuhiro Nakashima(1995) Mucous trail following in 2 intertidal Nudibranchs. Journal of Ethology 13(1): 125-128. |
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Yasuhiro Nakashima, Tetsuo Kuwamura and Yutaka Yogo (1995) Why be a both-ways sex changer? Ethology 101: 301-307. |
| 1994 |
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Tetsuo Kuwamura, Yutaka Yogo and Yasuhiro Nakashima(1994) Population dynamics of the goby Paragobiodon echinocephalus and host coral Stylophora pistillata. Marine Ecology Progress Series 103: 17-23. |
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Tetsuo Kuwamura, Yasuhiro Nakashima and Yutaka Yogo (1994) Sex change in either direction by growth-rate advantage in the monogamous coral goby Paragobiodon echinocephalus. Behavioral Ecology 5: 434-438. |
| 1993 |
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Tetsuo Kuwamura, Yutaka Yogo and Yasuhiro Nakashima(1993) Size-assortative monogamy and paternal egg care in a coral goby Paragobiodon echinocephalus. Ethology 95: 65-75. |
| 1987 |
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Yasuhiro Nakashima(1987) Reproductive strategies in a partially protandrous shrimp, Athanas kominatoensis (Decapoda: Alpheidae): sex change as the best of bad situation. Journal of Ethology 5(2): 145-159. |
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