Sentence examples for introduced fishes from inspiring English sources

Some species have been deliberately introduced; in Switzerland, 15 species of introduced fishes represent 25% of the fish fauna.

The river is now black, he said, and newly introduced fish die within hours.

Native and introduced fish varieties in the park's waterways include trout, suckers, and the Utah chub (Gila atraria).

Originally fishless, 19th and 20th century managers introduced fish to 95percentt of the lakes, carrying them in on horseback or dropping them from airplanes.

Nationally, the Congressional Office of Technology Assessment reports that environmental losses from introduced fish are $1 billion per year; from arthropods, $2.13 billion; and from mollusks, $1.3 billion.

We investigated the relationships among pond drying regime, presence of introduced fish and bullfrogs, and presence of tiger salamander populations in 42 ponds.

Metamorphosed bullfrogs ate salamander larvae in laboratory and field experiments, and the risk of local extinction among salamander populations was increased by introduced fish.

Some trout species are native to the streams of the Sierra Nevada, but others have been introduced; fish stocking is now common in all areas because of damming and other disturbances to the natural habitat.

To address overfishing many countries are adopting a more sustainable strategy for fishing and have introduced fishing quotas which limit the amount of fish that can be caught and killed from specific species.

Such a finding is important as introduced fish have been identified by the Australian Federal Government as a key threat to the ecological character of the Vasse-Wonnerup Wetland System (Australian Government 2011).

Tadpole predation by the introduced fish reduced frog populations.