Spawning Site Selection and Potential Implications of Modified Flow Regimes on Viability of Gulf Sturgeon Populations
Spawning Site Selection and Potential Implications of Modified Flow Regimes on Viability of Gulf Sturgeon Populations
复制标题
产卵地点的选择和改良水流方式对海湾鲟鱼种群生存能力的潜在影响
DOI：
10.1577/t08-144.1
复制
发表时间：
2009
影响因子：
1.4
通讯作者：
F. Parauka
中科院分区：
文献类型：
--
作者：
H. J. Flowers;W. E. Pine;A. Dutterer;K. G. Johnson;J. Ziewitz;M. Allen;F. Parauka
摘要：美国东南部生态多样化的阿巴拉契科拉-查塔胡奇-弗林特 (ACF) 河流域内人口的快速增长和用水需求的相应增加，导致阿拉巴马州、佐治亚州和佛罗里达州之间发生了一系列广为人知的水战，而最近的干旱状况加剧了这一情况。一个关键问题是，管理河流流量以满足人类用水需求将如何影响联邦列为受威胁或濒危物种的生存能力，其中包括墨西哥湾鲟鱼 Acipenser oxyrinchus desotoi。我们目前对阿巴拉契科拉河流域内的海湾鲟生态的了解表明，河流水流状况的改变可能会影响产卵成功率，并可能影响种群的补充模式。通过密集的实地工作，我们记录了阿巴拉契科拉河中海湾鲟产卵地点的选择，然后评估了河流水位与这些地点可用产卵栖息地之间的关系......
Abstract Rapid human population growth and an associated increase in consumptive water demands within the ecologically diverse Apalachicola–Chattahoochee–Flint (ACF) River basin of the southeastern United States have led to a series of highly publicized water wars, exacerbated by recent drought conditions, between the states of Alabama, Georgia, and Florida. A key issue is how managing riverine flows to meet human water needs will affect the viability of species that are federally listed as threatened or endangered, including the Gulf of Mexico sturgeon Acipenser oxyrinchus desotoi. Our present understanding of Gulf sturgeon ecology within the Apalachicola River basin indicates that altered riverine flow regimes may affect spawning success and possibly the recruitment patterns of the population. Through intensive field work, we documented Gulf sturgeon spawning site selection in the Apalachicola River and then evaluated the relationship between river stage and the available spawning habitat at these sites...