Channel Suspended Sediment and Fisheries: A Synthesis for Quantitative Assessment of Risk and Impact
Channel Suspended Sediment and Fisheries: A Synthesis for Quantitative Assessment of Risk and Impact
复制标题
河道悬浮沉积物和渔业：风险和影响定量评估的综合
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
J. Jensen
中科院分区：
文献类型：
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作者：
C. Newcombe;J. Jensen
摘要我们对80篇已发表的和有充分记录的关于鱼类对溪流和河口悬浮泥沙反应的报告进行了荟萃分析，得出了6个经验方程，这些方程将生物反应与暴露时间和悬浮泥沙浓度联系起来。这些方程回答了渔业管理中的一个重要需求：从历史上看，鱼类对河流和河口悬浮沉积物污染的响应很难量化，缺乏可靠的度量标准阻碍了对鱼类遭受过度沉积的风险和影响的评估。这六个方程解决了各种分类组的lotic，lentic，河口鱼类，生活阶段的物种在这些群体中，悬浮沉积物的颗粒大小。方程均为z = a + B（log ex）+ c（log ey）; z为不良效应严重度，x为暴露持续时间（h），y为悬浮泥沙浓度（mg SS/L），a为截距，B和c为斜率系数。疾病的严重性…
Abstract Our meta-analysis of 80 published and adequately documented reports on fish responses to suspended sediment in streams and estuaries has yielded six empirical equations that relate biological response to duration of exposure and suspended sediment concentration. These equations answer an important need in fisheries management: quantifying the response of fishes to suspended sediment pollution of streams and estuaries has been difficult historically, and the lack of a reliable metric has hindered assessment for risk and impact for fishes subjected to excess sedimentation. The six equations address various taxonomic groups of lotic, lentic, and estuarine fishes, life stages of species within those groups, and particle sizes of suspended sediments. The equations all have the form z = a + b (log ex) + c(log ey); z is severity of ill effect, x is duration of exposure (h), y is concentration of suspended sediment (mg SS/L), a is the intercept, and b and c are slope coefficients. The severity of ill eff...