| 王春,成永旭.2009.罗氏沼虾繁殖行为的再描述.动物学杂志,44(4):102-110. |
| 罗氏沼虾繁殖行为的再描述 |
| Re-description of Reproductive Behavior of Macrobrachium rosenbergii |
| 投稿时间：2008-12-18 修订日期：2009-05-13 |
| DOI： |
| 中文关键词: 罗氏沼虾 繁殖行为 配偶守卫 交媾 |
| 英文关键词:Macrobrachium rosenbergii Reproductive behavior Mate guard Copulation |
| 基金项目:上海市重点学科项目(y1101);上海市科委项目(No.08DZ1206002);崇明专项项目 |
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| 中文摘要: |
| 2007年6～9月对采自孟加拉国库尔纳专区羌纳县布苏尔河原产地罗氏沼虾(Macrobrachium rosenbergii)的繁殖行为进行了观察研究。配合摄像机录像技术,重点观察并记录了野生罗氏沼虾生殖过程中的主要行为特征。本文所涉及的繁殖过程特指在人工操控条件下,自两性遭遇、识别至雌虾抱卵为止这段时间。选择体重在80.0g以上的雄虾、40.0g以上的雌虾分别在当地河堤外侧的池沼中驯化适应15d,然后,在室内水泥池中观察其繁殖行为。罗氏沼虾在繁殖过程中呈现的典型行为主要有:两性遭遇及识别,雄虾的占位,雌虾的蜕壳,雄虾俘获雌虾及其交媾前的守卫、交媾及精荚传递,雄虾交媾后的守卫及释放雌虾,雌虾产卵及抱卵。其中,雄虾的配偶守卫行为是有效地保证两性生殖成功的交配策略之一。 |
| 英文摘要: |
| Reproductive behavior of the freshwater prawn,Macrobrachium rosenbergii,which is native to the Pusur River in Chalna County,Khulna Division,Bangladesh,was observed from Jun to Sept,2007.Time-lapse video was used to record typical behavior throughout the reproduction period.The reproductive process described in this paper was definitively referred to the duration from the time of encounter and recognition between two sexes to egg-carrying of the female respectively under the given conditions.Males with 80.0 g plus body weight and the females with 40.0 g plus body weight,the individuals used in this observation were caught from the lower reaches of the Pusur River,then were acclimated in the pools for 15 days outside the riverbank and fresh escargots meat,Viviparus iaiopoma,were provided as food.After acclimation,males above 80 g and female above 40 g were selected and moved into the indoor concrete tanks with a density of one reproductive pair/m2(RP,defined as one male and one female) for further observation.A typical successive process included following incidents:encountering and recognizing between the sexes,male occupying territory,female molting,male seizing a receptive female and performing precopulatory guard,copulating and transmitting its spermatophore to the female,postcopulatory guard and releasing the female,female spawning and carrying eggs.Mate-guard is the main mating tactics for the success of reproduction. |
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