Sentences with phrase «anadromous fish»

In addition to overseeing office operations, he manages American Rivers» programs in California related to hydropower reform, anadromous fish restoration, dam removal, climate change and water supply.

Fish behavior and population dynamics, anadromous fish ecology, especially inter-estuary migration and population dynamics of sturgeon and salmon.Evaluation of ocean energy impacts on fish and fish populations.

«Shad are continuing a downward trend that began around 2000,» says Michael Hendricks, a fisheries biologist who leads the Anadromous Fish Restoration Unit at the Pennsylvania Fish and Boat Commission.

«This once was a world that had ten times more whales; twenty times more anadromous fish, like salmon; double the number of seabirds; and ten times more large herbivores — giant sloths and mastodons and mammoths,» says Roman.

Of all the anadromous fishes of the Pacific, the Steelhead serves the severest apprenticeship for the sea; western salmon leave the stream by the time they are a year old, some of them after only 90 days.

Most of the coastal rivers in North America once teemed with great runs of anadromous fishes — organisms that hatch in inland freshwater streams, migrate to the salty sea, then return to the streams to spawn.

Not exact matches

Fish that live in both fresh and salt water — and migrate to spawn - are called anadromous.

anadromous species species of fish, such as salmon, that spawn in fresh water and then migrate into the ocean to grow to maturity