Sentence examples for reduced fish populations from inspiring English sources

Blooms there have severely reduced fish populations and turned wild streams into sludge pits.

Earlier this year, Australian researchers found that cephalopod numbers the world over were steadily increasing, potentially as a result of warmer ocean temperatures and reduced fish populations.

In fact, in areas where overfishing and habitat destruction have reduced fish populations, jellyfish are now becoming the dominant predators.

Octopuses, cuttlefish and squid have thrived in the world's oceans over the last 60 years despite – or because of – human activity that has warmed oceans and reduced fish populations.

This has reduced fish populations in the pamo fishing area.

It was concluded that the dam reduced fish populations, but more importantly, flooded natural salt pits and spread them into rice and vegetable fields, destroying trees and crops.

Beginning in the late 19th century, commercial fishing thrived in Minnesota, especially in Lake Superior, but a reduced fish population (caused by overfishing and pollution) led to its decline in the late 20th century.

For example, when jellyfish occur in high concentration in enclosed seas, they may consume such large numbers of fish larvae as to greatly reduce fish populations.

A thick and growing coat of toxic algae appears each summer, so vast that in 2011 it covered a sixth of its waters, contributing to an expanding dead zone on its bottom, reducing fish populations, fouling beaches and crippling a tourism industry that generates more than $10 billion in revenue annually.

Casual use of herbicides for lake or farm pond refinement may reduce fish populations (Masser et al. 2001).

While all studied substances resulted in effects on offspring, the observation that estrogenic substances are highly embryotoxic, raises concern that endocrine disrupting substances may severely reduce fish populations in polluted areas.