mainstem

Researchers determined that for all fish types listed, those in the "mainstem" Klamath are expected to be impacted the most by mortality and non-lethal stress, although the report predicts a recovery in the long run.

Siskiyou Daily News Homepage RSS 2009

In December 2005, the Nile's mainstem was closed to allow dam construction to proceed, and in April 2008, the last spillgates of the Merowe Dam were closed.

Peter Bosshard: German Company Faces Criminal Complaint Over Abuses in Sudan Dam 2010

It is the last remaining barrier on the mainstem of the Winnicut River and its removal effort, which also includes the installation of a fish passage structure upstream, will open more than 39 miles of upstream habitat for migratory fish such as alewives, blueback herring, and American eel.

Winnicut River Dam Removal 2009

It is the last remaining barrier on the mainstem of the Winnicut River and its removal effort, which also includes the installation of a fish passage structure upstream, will open more than 39 miles of upstream habitat for migratory fish such as alewives, blueback herring, and American eel.

Augmented Reality: More than Hype? |NHPR|Word of Mouth 2009

A single dam, the Grand Coulee, completely and permanently blocked a quarter of the Columbia Basin to migratory salmon, a thousand miles of the mainstem river lost to salmon in a single action.

Salmon decline in western North America~ historical context 2009

The mainstem Mississippi River was managed to allow deepwater shipping and commerce in the New Orleans region and throughout the Mississippi basin, as well as to impede flooding of developed areas, but this management regime ultimately led to the situation that made New Orleans so vulnerable.

Rebuilding New Orleans~ applying ecological economics and ecological engineering 2007

The great junction of the Rio Negro and the mainstem Amazon has fallen away behind us.

The Song of The Dodo David Quammen 2004

First he ascended the mainstem as far as the city of Santarém, about five hundred miles inland, where the huge Rio Tapajós drains in from the south.

The Song of The Dodo David Quammen 2004

Both the mainstem Amazon and the Rio Negro are gigantic rivers, miles wide where they converge near the town known to Wallace as Barra.

The Song of The Dodo David Quammen 2004

By October, after a trip up the Rio Tocantins, which flows northward into the mainstem Amazon not far upstream from Para, they had packed off another batch—again mostly insects, but now also including a few bird skins and shells.

The Song of The Dodo David Quammen 2004