Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/eff.12214 |
Salinity and geomorphology drive long-term changes to local and regional fish assemblage attributes in the lower Pecos River, Texas | |
Cheek, Christopher A.1,3; Taylor, Christopher M.2 | |
通讯作者 | Taylor, Christopher M. |
来源期刊 | ECOLOGY OF FRESHWATER FISH
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ISSN | 0906-6691 |
EISSN | 1600-0633 |
出版年 | 2016 |
卷号 | 25期号:3页码:340-351 |
英文摘要 | River systems throughout arid regions worldwide have been heavily impacted by human activities, resulting in long-term ecological consequences. The lower Pecos River in the Trans-Pecos region of Texas is no exception, having undergone anthropogenic changes that include decreased flow, elevated salinity, species loss and species invasion. We compared historical and contemporary fish assemblage attributes from the Pecos River at local (site-specific) and regional (Trans-Pecos region) scales across a 24-year time period. Fish assemblage data were collected in October 1987 and 2011, by seining at 15 sites spanning 430km of the river in Texas. Additionally, we examined contemporary environmental conditions to determine species-environment relationships. We found that fish assemblages were significantly different between time periods, likely due to increased salinisation in the upper half of the study region. Decreased species richness, species replacement and increases in euryhaline species were documented in the upstream sites. Freshwater springs lower the salinity and maintain flows in the downstream reach, allowing for maintenance of the native fish fauna. Careful management of regional aquifers, irrigation practices and petroleum waste water will be necessary for protecting biodiversity and environmental flows in the lower Pecos River. |
英文关键词 | Pecos River fish assemblage change salinisation spring flow habitat loss |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000378625100001 |
WOS关键词 | GRANDE SILVERY MINNOW ; STREAM FISHES ; FRAGMENTATION ; CYPRINODON ; PLAINS ; SALINIZATION ; ENVIRONMENT ; STRATEGIES ; ABUNDANCE ; HISTORY |
WOS类目 | Fisheries ; Marine & Freshwater Biology |
WOS研究方向 | Fisheries ; Marine & Freshwater Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/192483 |
作者单位 | 1.Texas Tech Univ, Dept Nat Resources Management, Lubbock, TX 79409 USA; 2.Univ Texas Pan Amer, Dept Biol, Edinburg, TX 78539 USA; 3.Navajo Nation Dept Fish & Wildlife, POB 1480, Window Rock, AZ 86515 USA |
推荐引用方式 GB/T 7714 | Cheek, Christopher A.,Taylor, Christopher M.. Salinity and geomorphology drive long-term changes to local and regional fish assemblage attributes in the lower Pecos River, Texas[J],2016,25(3):340-351. |
APA | Cheek, Christopher A.,&Taylor, Christopher M..(2016).Salinity and geomorphology drive long-term changes to local and regional fish assemblage attributes in the lower Pecos River, Texas.ECOLOGY OF FRESHWATER FISH,25(3),340-351. |
MLA | Cheek, Christopher A.,et al."Salinity and geomorphology drive long-term changes to local and regional fish assemblage attributes in the lower Pecos River, Texas".ECOLOGY OF FRESHWATER FISH 25.3(2016):340-351. |
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