Decline of freshwater fishes and fisheries in selected drainages of west-central Mexico
作者 Lyons, John, Georgina González-Hernández,Eduardo Soto-Galera,Manuel Guzmán-Arroyo
Environmental Biology of Fishes, 10(4):10-18 4月-1998. DOI: 10.1577/1548-8446%281998%29023<0010%3ADOFFAF>2.0.CO%3B2
" The unique freshwater fishes and fisheries of west-central Mexico are sharply declining because of environmental degradation. In the Lerma River basin, half of the localities that once supported fish communities either no longer have water or are so polluted that fish cannot survive. Of 44 native fishes, 3 are now extinct, and 23 are greatly reduced in range or abundance. In Lake Chapala, total fisheries production has actually increased despite major declines in water quantity and quality, but the fisheries for several valuable native species have declined or collapsed, and exotics now constitute a substantial portion of the catch. In the Ayuquila River, several species have been locally extirpated, and major untreated industrial and municipal discharges, coupled with substantial water withdrawals for irrigation, preclude fish life during the dry season in 20 km of river that once supported an important subsistence fishery. Conservation priorities include protecting localities that still retain native fish assemblages, reducing water withdrawals and pollution discharges, and controlling fishing effort and harvest better. These efforts in west-central Mexico would benefit from increased collaboration among Mexican, U.S., and Canadian fisheries professionals "
類別: 生理和疾病.
語言: English
在參考書目中的物種引用文獻 (44)
名稱換人
- Allotoca dugesii 簡稱 Allotoca dugesi.
- Ictalurus dugesii 簡稱 Ictalurus dugesi, Ictalurus ochoterenai.
- Moxostoma austrinum 簡稱 Scartomyzon austrinum.
- Neotoca bilineata 簡稱 Skiffia bilineata.
- Tetrapleurodon geminis 簡稱 Lampetra geminis.
- Tetrapleurodon spadiceus 簡稱 Lampetra spadicea.
Lyons, John & Georgina González-Hernández,Eduardo Soto-Galera,Manuel Guzmán-Arroyo. 1998. "Decline of freshwater fishes and fisheries in selected drainages of west-central Mexico". Environmental Biology of Fishes. 10(4):10-18. DOI: 10.1577/1548-8446%281998%29023<0010%3ADOFFAF>2.0.CO%3B2 (ffm01009) (摘要)