干旱区生态环境知识资源中心(Arid): Salinity tolerance of a rare and endangered unionid mussel, Popenaias popeii (Texas Hornshell) and its implications for conservation and water management

Arid

DOI	10.1016/j.ecoenv.2018.11.031
	Salinity tolerance of a rare and endangered unionid mussel, Popenaias popeii (Texas Hornshell) and its implications for conservation and water management
	Hart, Michael A.1; Miller, Tom D.2; Randklev, Charles R.1
通讯作者	Hart, Michael A.
来源期刊	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN	0147-6513
EISSN	1090-2414
出版年	2019
卷号	170 页码:1-8
英文摘要	Unionid mussels are considered sensitive to salinity and there is growing concern in arid and semi-arid regions that declining flows coupled with anthropogenic impacts are amplifying natural salinity levels. In this study, we tested the effects of varying salinity concentrations (3.0, 4.0, 5.0, 6.0, 7.0 and 10.0 ppt NaCl) on survival of adult Popenaias popeii, (Texas Hornshell). This species occurs in the Rio Grande basin of Texas and northern Mexico, an arid to semi-arid stream plagued by salinization, and was recently listed as Endangered under the U.S. Endangered Species Act. We performed 2, 4, and 10-day toxicity tests on individuals from two disjunct populations: Laredo, TX, and the Lower Canyons of the Rio Grande near Big Bend National Park. We found no significant differences in LC50 estimates between populations at 96-hrs or 10-days but significant differences in TUD50s at 5 ppt between populations, which indicates that tolerance does not vary but sensitivity may between these populations. Overlaying LC50 estimates at 10-days for both populations on plots of salinity (ppt) measured over time, we show parts of the Rio Grande periodically approach or exceed 4.0 ppt, indicating these reaches are becoming unsuitable for P. popeii and populations within them at risk.
英文关键词	Water quality Aquatic invertebrates Aquatic toxicology Southwestern United States Rio Grande Unionid
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000456890700001
WOS关键词	BIOTIC HOMOGENIZATION ; CHRONIC TOXICITY ; SALINIZATION ; GLOCHIDIA ; CHLORIDE ; EXPOSURE ; BIVALVIA ; SURVIVAL ; RIVERS ; TISSUE
WOS类目	Environmental Sciences ; Toxicology
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215331
作者单位	1.Texas A&M Univ, Nat Resources Inst, College Stn, TX 77843 USA; 2.Laredo Community Coll, Environm Sci Ctr, Laredo, TX 78040 USA
推荐引用方式 GB/T 7714	Hart, Michael A.,Miller, Tom D.,Randklev, Charles R.. Salinity tolerance of a rare and endangered unionid mussel, Popenaias popeii (Texas Hornshell) and its implications for conservation and water management[J],2019,170:1-8.
APA	Hart, Michael A.,Miller, Tom D.,&Randklev, Charles R..(2019).Salinity tolerance of a rare and endangered unionid mussel, Popenaias popeii (Texas Hornshell) and its implications for conservation and water management.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,170,1-8.
MLA	Hart, Michael A.,et al."Salinity tolerance of a rare and endangered unionid mussel, Popenaias popeii (Texas Hornshell) and its implications for conservation and water management".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 170(2019):1-8.