An Attempt at Captive Breeding of the Endangered Newt Echinotriton andersoni, from the Central Ryukyus in Japan
Abstract
:Simple Summary
Abstract
1. Introduction
2. Materials and Methods
3. Results
3.1. Development of Naturally Deposited Embryos
3.2. Developmental Capacity
Island | Date | No. of Eggs | Normal Tailbud Embryos (%) | Normally Hatched Larvae (%) | Metamor- phosed Newts (%) | 2-Month-Old Newts (%) |
---|---|---|---|---|---|---|
Okinawa | 2009.4.19 | 37 | 28 (75.7) | 17 (45.9) | 11 (29.7) | 10 (27.0) |
2010.4.10 | 20 | 6 (30.0) | 5 (25.0) | 5 (25.0) | 4 (20.0) | |
Total | 57 | 34 (59.6) | 22 (38.6) | 16 (28.1) | 14 (24.6) | |
Tokunoshima | 2010.2.22 | 33 | 29 (87.9) | 29 (87.9) | 29 (87.9) | 22 (66.7) |
2010.3.23 | 21 | 21 (100) | 21 (100) | 21 (100) | 16 (76.2) | |
2010.4.12 | 30 | 25 (83.3) | 24 (80.0) | 23 (76.7) | 13 (43.3) | |
2010.4.16 | 17 | 9 (52.9) | 9 (52.9) | 9 (52.9) | 4 (23.5) | |
2010.6. 4 | 36 | 25 (69.4) | 25 (69.4) | 25 (69.4) | 14 (38.9) | |
2011.1.23 | 44 | 37 (61.4) | 37 (61.4) | 25 (56.8) | 14 (31.8) | |
2011.3.11 | 20 | 20 (100) | 10 (50.0) | 10 (50.0) | 6 (30.0) | |
2011.4.13 | 3 | 3 (100) | 3 (100) | 3 (100) | 2 (66.7) | |
2011.4.30 | 10 | 10 (100) | 5 (50.0) | 4 (40.0) | 2 (20.0) | |
2011.5. 7 | 17 | 17 (100) | 7 (41.2) | 4 (23.5) | 2 (11.8) | |
2011.5.29 | 7 | 7 (100) | 6 (85.7) | 6 (85.7) | 4 (57.1) | |
2012.3. 7 | 46 | 46 (100) | 44 (95.7) | 38 (82.6) | 28 (60.9) | |
Total | 284 | 249 (87.7) | 220 (77.5) | 197 (69.4) | 127 (44.7) | |
Amami | 2013.4.17 | 27 | 27(100) | 24(88.9) | 24(88.9) | – |
2013.5.21 | 10 | 9(90.0) | 8(80.0) | – | – | |
Total | 37 | 36 (97.3) | 32 (865) | – | – |
4. Discussion
5. Conclusions
Acknowledgments
Conflict of Interest
References
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Igawa, T.; Sugawara, H.; Tado, M.; Nishitani, T.; Kurabayashi, A.; Islam, M.M.; Oumi, S.; Katsuren, S.; Fujii, T.; Sumida, M. An Attempt at Captive Breeding of the Endangered Newt Echinotriton andersoni, from the Central Ryukyus in Japan. Animals 2013, 3, 680-692. https://doi.org/10.3390/ani3030680
Igawa T, Sugawara H, Tado M, Nishitani T, Kurabayashi A, Islam MM, Oumi S, Katsuren S, Fujii T, Sumida M. An Attempt at Captive Breeding of the Endangered Newt Echinotriton andersoni, from the Central Ryukyus in Japan. Animals. 2013; 3(3):680-692. https://doi.org/10.3390/ani3030680
Chicago/Turabian StyleIgawa, Takeshi, Hirotaka Sugawara, Miyuki Tado, Takuma Nishitani, Atsushi Kurabayashi, Mohammed Mafizul Islam, Shohei Oumi, Seiki Katsuren, Tamotsu Fujii, and Masayuki Sumida. 2013. "An Attempt at Captive Breeding of the Endangered Newt Echinotriton andersoni, from the Central Ryukyus in Japan" Animals 3, no. 3: 680-692. https://doi.org/10.3390/ani3030680