Environmental Variability Affects Distributions of Coastal Fish Species (Maryland)
Environmental Variability Affects Distributions of Coastal Fish Species (Maryland)
复制标题
环境变化影响沿海鱼类的分布（马里兰州）
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
E. May
中科院分区：
文献类型：
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作者：
J. Love;P. Chigbu;E. May
摘要
在1996年、1997年和1999年的5-10月期间，我们确定了环境变化如何影响马里兰州沿海泻湖季节性捕食的鱼类(即过渡物种)的分布。在沿海泻湖的40个采样点共进行了241次月度采样。水系流量变化引起的盐度波动与鱼类群落的年内稳定性呈负相关。在盐度变化较小的生境中，暂住物种或非居留物种(例如，新生物种)更为常见。在干旱年份，当河流流量减少时，过渡物种在整个沿海泻湖中更为常见。因此，环境的多变性影响了沿海河口幼鱼的分布。
Abstract
We determined how environmental variability affected distributions of seasonally recruiting fishes (i.e., transient species) in coastal lagoons of Maryland from May–October during 1996, 1997, and 1999. A total of 241 monthly sampling events were conducted in the coastal lagoons at 40 sampling stations. Fluctuations in salinity resulting from variation in stream discharge were negatively correlated with intra-annual stability of fish assemblages. Transient, or non-resident species (e.g., recruiting species), were more frequent in habitats where salinity was less variable. When stream discharge lessened during dry years, transient species were more common throughout the coastal lagoons. Thus, environmental variability influenced distributions of young-of-year fishes in coastal estuaries.