Sentence examples for native fish species from inspiring English sources
Three of the Grand Canyon's eight native fish species are extinct.
Extracted DNA was matched closely to the New Zealand native fish species Gobiomorphus cotidianus.
"They can potentially threaten all native fish species through disruption of the local ecosystem and disease transmission," Mr. Panzone wrote in an e-mail.
Gorse, another import, is creeping up mountainsides while sea trout, introduced to provide a food source and sport for islanders and tourists, is killing off native fish species.
Large-scale fish farming is ecologically problematic in other parts of the world, but smaller-scale operations in the Amazon, using native fish species, are among the most sustainable and least destructive sources of animal protein.
In the Colorado River, two native fish species, the bonytail chub and razorback sucker, are considered particularly vulnerable to mussel competition, and avian botulism may threaten bald eagles around Lake Mead.
Ecologists say the finding, reported tomorrow in Science, explains why the lake has lost dozens of native fish species--and illustrates how human activities, such as logging and farming, can interfere with the sometimes subtle forms of animal communication that help maintain species diversity.
The results of this study suggest that the isolation of a river reach and a managed rise in water level facilitated spawning and recruitment of a non-native fish species.
The lake isn't perfectly round or perfectly pure: There's at least one crashed helicopter in it, along with two non-native fish species.
Introduction in previous decades of lake trout and other non-native fish species has greatly impacted some native fish populations, especially the bull trout and west slope cutthroat trout.
Increasing intensification measures include manipulation of natural biological factors such as recruitment by regular stocking of juvenile fish from hatchery sources or creating self-reproducing populations and introductions of non-native fish species.
