伯氏亚口鱼
外观
伯氏亚口鱼![]() | |
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在中间 | |
科学分类 ![]() | |
界: | 动物界 Animalia |
门: | 脊索动物门 Chordata |
纲: | 辐鳍鱼纲 Actinopteri |
目: | 鲤形目 Cypriniformes |
科: | 亚口鱼科 Catostomidae |
属: | 亚口鱼属 Catostomus |
种: | 伯氏亚口鱼 C. bernardini
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二名法 | |
Catostomus bernardini Girard, 1856
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伯氏亚口鱼(学名:Catostomus bernardini)为辐鳍鱼纲鲤形目亚口鱼科的其中一种,为温带淡水鱼,分布于北美洲美国亚历桑纳州东南部及墨西哥西北部的Rio Yaqui盆地。身体呈梭形且延长,头部和眼睛相对较大,口下位,唇厚呈吸盘状,背鳍和尾鳍是深色,其他鳍是白色或黄色,雄鱼的臀鳍和背鳍比雌鱼大,背鳍软条12枚,体长可达40公分,栖息在山区、沙漠的溪流、深水潭底部,能适应不同的海拔高度,由于特定的水温偏好,产卵通常会在每年三月和四月。在这些时期,雄性会变成蓝色,而雌性则保持黄褐色,在泛滥季节时喜欢在水前的急流中活动,而在干旱期间会撤退到水流较慢和较深的水池。通常用吸盘状的口吸食沉积物中有机物,因此需要大量的沉积物排放,湿地流失和缺乏沉积物的补给与物种的消失密切相关。亚利桑那州在1988年将本物种列入了濒危物种名单,而恢复其数量的工作却很少。根据《自然服务》(Nature Serve,2002),含水层的抽水,水流的减少以及非本地绿色翻车鱼的捕食都是造成该物种减少的主要因素。
参考文献
[编辑]- ^ NatureServe. Catostomus bernardini. The IUCN Red List of Threatened Species. 2019, 2019: e.T4039A129655860 [17 November 2021]. doi:10.2305/IUCN.UK.2019-2.RLTS.T4039A129655860.en
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- NatureServe 2019. Catostomus bernardini. The IUCN Red List of Threatened Species 2019: e.T4039A129655860. Downloaded on 23 July 2019.
- Hendrickson, D.A., et al. 1980. Fishes of the Rio Yaqui Basin, Mexico and United States. Journal of the Arizona-Nevada Academy of Science 15(3):75-77.
- Lowe, C.H., Editor. 1964. The vertebrates of Arizona. University of Arizona Press, Tucson. p. 144.
- Minckley, W.L. 1973. Fishes of Arizona. Arizona Game and Fish Department, Phoenix. pp. 163-164.
- Page, L.M., and B.M. Burr. 1991. A field guide to freshwater fishes: North America, north of Mexico. Houghton Mifflin Co., Boston. p. 171.
- Rinne, J.N., and W.L. Minckley. 1991. Native fishes of arid lands: a dwindling resource of the desert southwest. U.S. Department of Agriculture, Forest Service, General Technical *Report RM-206. Rocky Mountain Forest and Range Experiment Station, Fort Collins, Colorado. pp. 19-21.
- Arizona Game and Fish Department. In prep. Wildlife of special concern in Arizona. Arizona Game and Fish Department Publication. Phoenix, Arizona. 32 pp.
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