Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/tafs.10066 |
Trophic Ecology of Lahontan Cutthroat Trout: Historical Predator-Prey Interaction Supports Native Apex Predator in a Unique Desert Lake | |
Heredia, Nicholas A.1,2; Budy, Phaedra1,2,3 | |
通讯作者 | Heredia, Nicholas A. |
来源期刊 | TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY |
ISSN | 0002-8487 |
EISSN | 1548-8659 |
出版年 | 2018 |
卷号 | 147期号:5页码:842-854 |
英文摘要 | Pyramid Lake, Nevada, remains one of the last strongholds for lacustrine-strain Lahontan Cutthroat Trout Oncorhynchus clarkii henshawi (LCT) following historical declines throughout their native range. Historically the apex predator in this aquatic ecosystem, LCT in Pyramid Lake are now entirely dependent on hatchery programs and are potentially threatened by the introduction of a nonnative piscivore. The purpose of this study was to identify strong food web interactions and potential trophic limitations to the LCT population. Our specific objectives were to estimate seasonal foraging patterns, trophic position (TP), trophic niche space, diet composition, and seasonal depth distributions of LCT relative to prey fish. Additionally, we evaluated the potential for competition between LCT and nonnative, piscivorous Sacramento Perch Archoplites interruptus by examining diet overlap and trophic niche space. Our results indicate that LCT are apex predators, with TP (large [>400mm TL] LCT: TP [mean +/- 1.96 |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000444682900005 |
WOS关键词 | STABLE-ISOTOPE ; YELLOWSTONE LAKE ; INTRODUCED LAKE ; EUTROPHIC LAKE ; GILA-BICOLOR ; PYRAMID LAKE ; FOOD-CHAINS ; NEVADA ; INVASIONS ; FISHES |
WOS类目 | Fisheries |
WOS研究方向 | Fisheries |
来源机构 | United States Geological Survey |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/213482 |
作者单位 | 1.Utah State Univ, Dept Watershed Sci, Logan, UT 84322 USA; 2.Utah State Univ, Ctr Ecol, Logan, UT 84322 USA; 3.Utah State Univ, Utah Cooperat Fish & Wildlife Res Unit, US Geol Survey, Logan, UT 84322 USA |
推荐引用方式 GB/T 7714 | Heredia, Nicholas A.,Budy, Phaedra. Trophic Ecology of Lahontan Cutthroat Trout: Historical Predator-Prey Interaction Supports Native Apex Predator in a Unique Desert Lake[J]. United States Geological Survey,2018,147(5):842-854. |
APA | Heredia, Nicholas A.,&Budy, Phaedra.(2018).Trophic Ecology of Lahontan Cutthroat Trout: Historical Predator-Prey Interaction Supports Native Apex Predator in a Unique Desert Lake.TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY,147(5),842-854. |
MLA | Heredia, Nicholas A.,et al."Trophic Ecology of Lahontan Cutthroat Trout: Historical Predator-Prey Interaction Supports Native Apex Predator in a Unique Desert Lake".TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY 147.5(2018):842-854. |
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