Adaptive strategies in reproduction to be a simultaneous hermaphrodite
成为同时雌雄同体的繁殖适应性策略
基本信息
- 批准号:13640630
- 负责人:
- 金额:$ 1.79万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2001
- 资助国家:日本
- 起止时间:2001 至 2003
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
At the beginning of this research, we predicted that protogynous labrid fishes could perform bi-sexual mating behavior, that is court as a male and also as a female, only for a few days in the period of sex change, and afterward they would behave only as the sex they changed to. Contrary to the first prediction, we found that Halichoeres margaritaceus performed bi-sexual mating behavior longer than a week in the course of research in 2001. But we could not observe mating behavior in the field after2001 reproductive season, because the water clearance badly diminished owing to the erosion of the soil. So we enlarged our research theme to the flexibility of the reproductive behavior in the males of labrid fishes. As a result, we found an initial phase male of H. trimaculatus changed its sex into female in the field in 2003. This shows the sex allocation of sex changing fishes are surprisingly high. Further, we found that initial phase males of H. trimaculatus used three types of reproduc … More tive strategies, sneaking, streaking, and group spawning according to their circumstances.The population of Onchidium verruculatum, another research object, diminished on a large scale because of extraordinarily high tide occurred at Okinawan coast successively. As a result, we could not found enough number of individuals for observation in 2001. In 2003, although the overall number recovered to usual level, mature individuals were not enough for effective observation. So we decided to change study animals to nudibranchs. Although nudibranchs are simultaneous hermaphrodite as well as Onchidium, they take both male and female role simultaneously in each copulation. On the other hand, Onchidium acts as a male or a female in each mating occasion. We found a characteristic rejection to copulation in individuals of Chromodoris tinctoria that have already copulated. This is contrary to the prediction that hermaphroditic animals with internal fertilization prefer to take female role in reproduction, because they can use received sperm not only for fertilization but also as a nutrient. Less
在本研究开始时,我们预测,原生唇鱼可以进行两性交配行为,即作为男性和女性的法院,只有几天的性别变化期间,之后他们将只作为他们改变的性别。与第一个预测相反,我们在2001年的研究中发现,海猪鱼的两性交配行为持续时间超过一周。但在2001年繁殖季节后,由于土壤侵蚀,水分清除率严重下降,无法在田间观察到交配行为。因此,我们扩大了我们的研究主题,在labrid鱼类的男性生殖行为的灵活性。结果,我们发现了一个初始阶段的男性H。trimaculatus于2003年在野外进行了性别转换。这表明性别转换鱼类的性别分配是令人惊讶的高。此外,我们发现H. trimaculatus使用三种类型的reproduc ...更多信息 另外一个研究对象-因此,我们未能在2001年找到足够数目的个体进行观察。2003年,虽然总体数量恢复到正常水平,但成熟个体不足以进行有效观察。所以我们决定将研究动物改为裸鳃类。虽然裸鳃类是同时雌雄同体,以及石磺,他们同时采取男性和女性的角色,在每次交配。另一方面,石磺在每一次交配场合都充当雄性或雌性。我们发现了一个典型的拒绝交配的个人Chromodoris tinctoria已经交配。这与内受精的雌雄同体动物更喜欢在生殖中扮演雌性角色的预测相反,因为它们不仅可以将接受的精子用于受精,还可以将其用作营养物。少
项目成果
期刊论文数量(15)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Sakai, Y., Karino, K., Kuwamura, T., Nakashima, Y., Maruo Y.: "Sexually dichromatic protogynous angelfish Centropyge ferrugata (Pomacanthidae) males can change back to females."Zoological Science. 20(5). 627-633 (2003)
Sakai, Y.、Karino, K.、Kuwamura, T.、Nakashima, Y.、Maruo Y.:“性二色性原雄神仙鱼 Centropyge ferrugata (Pomacanthidae) 雄性可以变回雌性。”动物学。
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- 影响因子:0
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Sakai Y., Karino K., Nakashima Y., Kuwamura T.: "Status-dependent behavioural sex change in a polygynous coral-reef fish, Halichoeres melanurus"Journal of Ethology. (in press). (2002)
Sakai Y.、Karino K.、Nakashima Y.、Kuwamura T.:“一夫多妻珊瑚礁鱼 Halichoeres melanurus 的状态依赖性行为性别变化”行为学杂志。
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- 影响因子:0
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Sakai Y., Karino K., Nakashima Y., Kuwamura T.: "Status-dependent behavioural sex change in a polygynous coral-reef fish, Halichoeres melanurus"Journal of Ethology. 20. 101-105 (2002)
Sakai Y.、Karino K.、Nakashima Y.、Kuwamura T.:“一夫多妻珊瑚礁鱼 Halichoeres melanurus 的状态依赖性行为性别变化”行为学杂志。
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- 影响因子:0
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Kuwamura, T., Tanaka, N., Nakashima, Y., Karino, K., Sakai, Y.: "Reverse sex-change in the protogynous reef fish, Labroides dimidiatus."Etholog. 108. 443-450 (2002)
Kuwamura, T.、Tanaka, N.、Nakashima, Y.、Karino, K.、Sakai, Y.:“原生礁鱼 Labroides dimidiatus 中的反向性变。”行为学。
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- 影响因子:0
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Takamoto, G., Seki, S., Nakashima, Y., Karino, K., Kuwamura, T.: "Protogynous sex change in the haremic triggerfish Sufflamen chrysopterus (Tetraodontiformes)."Ichthyo-logical Research. 50(3). 281-283 (2003)
Takamoto, G.、Seki, S.、Nakashima, Y.、Karino, K.、Kuwamura, T.:“雌性引金鱼 Sufflamen chrysopterus (Tetraodontiformes) 的先雌性性别变化。”鱼类学研究。
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NAKASHIMA Yasuhiro其他文献
国土形成計画と農業・農村
国家土地整理规划与农业农村
- DOI:
- 发表时间:
2007 - 期刊:
- 影响因子:0
- 作者:
J-H. Hwang;Y. Yokoyama(他5名);塚本啓司・横山芳博(他3名);塚本啓司・横山芳博(他3名);横山芳博(他5名);松本武祝;松本武祝;松本武祝;松本武祝;松本武祝;松本武祝;松本武祝;中嶋康博;NAKASHIMA Yasuhiro;生源寺眞一;生源寺眞一 - 通讯作者:
生源寺眞一
農政改革と新時代の農業ビジョン
农业政策改革与新时代农业愿景
- DOI:
- 发表时间:
2007 - 期刊:
- 影响因子:0
- 作者:
J-H. Hwang;Y. Yokoyama(他5名);塚本啓司・横山芳博(他3名);塚本啓司・横山芳博(他3名);横山芳博(他5名);松本武祝;松本武祝;松本武祝;松本武祝;松本武祝;松本武祝;松本武祝;中嶋康博;NAKASHIMA Yasuhiro;生源寺眞一;生源寺眞一;生源寺眞一 - 通讯作者:
生源寺眞一
Direction of New Agriculture and Location Theory
新农业方向与区位论
- DOI:
- 发表时间:
2008 - 期刊:
- 影响因子:0
- 作者:
J-H. Hwang;Y. Yokoyama(他5名);塚本啓司・横山芳博(他3名);塚本啓司・横山芳博(他3名);横山芳博(他5名);松本武祝;松本武祝;松本武祝;松本武祝;松本武祝;松本武祝;松本武祝;中嶋康博;NAKASHIMA Yasuhiro - 通讯作者:
NAKASHIMA Yasuhiro
変わる市場環境・政策環境と戦略的経営行動
不断变化的市场和政策环境以及战略管理行动
- DOI:
- 发表时间:
2007 - 期刊:
- 影响因子:0
- 作者:
J-H. Hwang;Y. Yokoyama(他5名);塚本啓司・横山芳博(他3名);塚本啓司・横山芳博(他3名);横山芳博(他5名);松本武祝;松本武祝;松本武祝;松本武祝;松本武祝;松本武祝;松本武祝;中嶋康博;NAKASHIMA Yasuhiro;生源寺眞一 - 通讯作者:
生源寺眞一
NAKASHIMA Yasuhiro的其他文献
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{{ truncateString('NAKASHIMA Yasuhiro', 18)}}的其他基金
An Economic Study on Post-modernity Food Consumption and Alternative Food System
后现代食品消费与替代食品体系的经济学研究
- 批准号:
23658180 - 财政年份:2011
- 资助金额:
$ 1.79万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Anergic CD4+ T cells underlying impaired immune system in leukemia
无能 CD4 T 细胞导致白血病免疫系统受损
- 批准号:
23791079 - 财政年份:2011
- 资助金额:
$ 1.79万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
Evolutionary conditions for simultaneous hermaphroditism considered from mating frequency in Chromodorid Nudibranchs
从交配频率考虑彩色裸鳃类动物同时雌雄同体的进化条件
- 批准号:
22570029 - 财政年份:2010
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$ 1.79万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Mechanism design for land and water resource management in Chinese agriculture
中国农业水土资源管理机制设计
- 批准号:
21405025 - 财政年份:2009
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$ 1.79万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Supply Chain Management Analyses on Technological Innovation and Vertical Control in Food System
食品系统技术创新与垂直控制的供应链管理分析
- 批准号:
20580232 - 财政年份:2008
- 资助金额:
$ 1.79万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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