| 岷江下游产漂流性卵鱼类的繁殖活动与生态水文因子的关系 |
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| 投稿时间：2012-08-10 修订日期：2012-08-10 |
| DOI： |
| 中文关键词:岷江下游 漂流性卵 生态水文因子 繁殖活动 |
| 英文关键词:the Lower Reaches of the Minjiang River pelagic eggs eco-hydrological factors spawning activities |
| 基金项目:水利部公益性行业科研专项经费项目(200901009) |
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| 中文摘要: |
| 2010年5-8月对岷江下游的生态水文数据进行了分析,并对其与产漂流性卵鱼类产卵行为的关系进行了探讨。结果表明,12个水文指标变化趋势基本一致,水位变幅和变化率明显低于流量指标,6个流量指标(日流量、日内最低流量、日内最大流量、日内流量变幅、日间流量变幅、日间流量变化率)和6个水位指标(日水位、日内最低水位、日内最高水位、日内水位变幅、日间水位变幅、日间水位变化率)与鱼卵径流量均呈极显著的相关关系(P<0.01)。产漂流性卵鱼类产卵径流量的波动周期和频率与水文指标较吻合,一般较水文指标波动周期短2～3d;洪峰过程对鱼类产卵行为的刺激明显,是决定岷江下游产漂流性卵鱼类年产卵量多寡的一个重要环境因子,但第1次洪峰过程对产卵行为的影响明显滞后,2次洪峰过程后,鱼类集中产卵行为的起始时间和持续时间均与水文指标的波动达到高度一致。 |
| 英文摘要: |
| In the lower reaches of the Minjiang River，the eco-hydrological characteristics between May and August in 2010 and its relationship with spawning activities of fishes with pelagic eggs were analyzed. The results showed that the change trend of the twelve eco-hydrological factors was coincidence，the amplitudes and variation rates of water level were obviously lower than flow factors，and there were found significant correlations either between the six flow factors(daily flow，minimum flow in one day，maximum factors in one day，amplitudes of flow in one day，amplitudes of flow between two days，variation rates of flow between two days)and the spawning amount or between the six water level factors ( daily water level factors，minimum water level in one day，maximum water level in one day，amplitudes of water level in one day，amplitudes of water level between two days，variation rates of water level between two days)and the spawning amount ( P<0.01).The fluctuation period and frequency of the spawning amount were almost the same as the flow factors. Its fluctuation period was about 2 to 3 days shorter than the fluctuation period of flow factors. The flood peak obviously stimulated fishes with pelagic eggs to spawning，it played an important role in the annual spawning amount in the lower reaches of Minjiang River. The first extensive spawning activity started later than the first flood peak came. After twice flood peak processes，the time of the extensive spawning activity starting and standing kept pace with the fluctuation of the eco-hydrological factors. |
| 王文君,谢 山,张晓敏,黄道明,高少波.2012.岷江下游产漂流性卵鱼类的繁殖活动与生态水文因子的关系[J].水生态学杂志,33(6):29-34. |
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