Featured Research

from universities, journals, and other organizations

Study examines turbine effects on Yukon River fish

Date:
September 8, 2010
Source:
University of Alaska Fairbanks
Summary:
A fisheries scientist has teamed up with Alaska Power and Telephone to study how a new power-generating turbine affects fish in the Yukon River. So far, the news looks good for the fish.

Seitz and Bradley are using nets to capture fish at the turbine site and near the shore.
Credit: Image courtesy of University of Alaska Fairbanks

A University of Alaska Fairbanks fisheries scientist has teamed up with Alaska Power and Telephone to study how a new power-generating turbine affects fish in the Yukon River. So far, the news looks good for the fish.

"In the brief testing that we have been able to accomplish, we have no indication that the turbine has killed or even injured any fish," said Andrew Seitz, project leader and assistant professor of fisheries.

Alaska Power and Telephone installed the in-stream turbine near Eagle, Alaska this summer. They are testing its effectiveness as a power source for the village. A parallel project led by Seitz is studying the device's potential effects on fish moving through the river channel. Graduate student Parker Bradley and research technician Mark Evans have been in Eagle conducting the fisheries research since May.

The turbine is 16-feet wide and 8-feet tall. It's suspended from an anchored pontoon barge in the deepest and fastest part of the river. The turbine has four blades that spin at about 22 revolutions per minute.

"The community of Eagle, residents along the Yukon River and Alaska Power and Telephone have all been very supportive of the fish studies," said Seitz. "Everyone's biggest consideration is the fish."

Seitz and Bradley are using nets to capture fish at the turbine site and near the shore. The captured fish are identified, counted, measured and released alive back into the river. This information allows the scientists to determine the path downstream-migrating fish -- such as juvenile salmon -- take through the river channel. It also allows them to determine how many of the different fish species are in the channel and when they migrate. "This data allows us to determine the relative likelihood of a fish to pass through the turbine," said Seitz.

If a fish does pass through the turbine, Seitz and Bradley examine it for general health and indication of injury. Seitz says that preliminary results show that very few fish are passing through the turbine and those that do are not showing any signs of injury.

The project was funded by UAF and Alaska Power and Telephone via grant funding secured through Alaska's Denali Commission.


Story Source:

The above story is based on materials provided by University of Alaska Fairbanks. Note: Materials may be edited for content and length.


Cite This Page:

University of Alaska Fairbanks. "Study examines turbine effects on Yukon River fish." ScienceDaily. ScienceDaily, 8 September 2010. <www.sciencedaily.com/releases/2010/09/100908094928.htm>.
University of Alaska Fairbanks. (2010, September 8). Study examines turbine effects on Yukon River fish. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2010/09/100908094928.htm
University of Alaska Fairbanks. "Study examines turbine effects on Yukon River fish." ScienceDaily. www.sciencedaily.com/releases/2010/09/100908094928.htm (accessed September 17, 2014).

Share This



More Plants & Animals News

Wednesday, September 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Some Tobacco Farmers Thrive Amid Challenges

Some Tobacco Farmers Thrive Amid Challenges

AP (Sep. 16, 2014) The South's tobacco country is surviving, and even thriving in some cases, as demand overseas keeps growers in the fields of one of America's oldest cash crops. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

AFP (Sep. 16, 2014) Scientists say a female colossal squid weighing an estimated 350 kilograms (770 lbs) and thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

AFP (Sep. 16, 2014) Since the arrival of Ebola in Ivory Coast, Ivorians have been abandoning their pets, particularly monkeys, in the fear that they may transmit the virus. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

      Technology News



      Save/Print:
      Share:

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins