Sentence examples for migration of fishes from inspiring English sources

Environmental factors are of primary importance in the migration of fishes and marine invertebrates.

The dams will hinder or block the migration of fish, and because most of the important species migrate long distances to spawn, fish harvests could decline by nearly half; proposed dams on tributaries would cut harvests further.

Some seasonal migration of fish occurs, notably through the Bosporus.

The Mekong River Commission has said it had "fundamental gaps in knowledge" about how the dam would affect the migration of fish, an important source of food for the millions of people who live along the river's banks.

The migration of fishing fleets is as much a product of overfishing down south as of climate change.In 2010 the Arctic Council published an index of trends in Arctic vertebrate populations, using data for 306 species (35% of the total) gathered between 1970 and 2004.

But the migration of fish into the apartment building lobby reflects both a desire to cater to the interests of children in increasingly family-oriented areas like Battery Park City and a belief that the lobby should be a communal destination for residents, rather than a place where neighbors simply pass one another by.

"This generous time frame ignores the life cycle and migration of fish," the court ruled.

The migration of fish from one sampling site to the other can, therefore, be minimized to the greatest extent.

Upstream migration of fish through circular culverts is often prevented by velocities in the barrel being higher than that of the natural channel.

This study deals with hydraulic characteristics for different weir types and effects on upstream migration of fish in a pool-weir fishway, and presents an optimal design of weir for an easy upstream migration.

They suggested that the higher density of fish recorded in the dry season may be a response to the reduction of environmental stresses by the rain water dilution and migration of fish from the sea and surrounding water bodies into the creek.