Researchers Dr. Kenneth Cain, University of Idaho, and Dr. Douglas Call, Washington State University, have developed a probiotic that fights Coldwater Disease in trout and salmon. They found the probiotic bacteria in the fish’s own gut. (Photo by Shelly Hanks, Washington State University)
After searching 15 years for a way to combat a devastating disease among salmonids (salmon and trout), researchers at Washington State University (WSU) and the University of Idaho (UI) found an answer inside the fish itself.
Dr. Kenneth Cain’s team at UI’s Aquaculture Research Institute cultured a bacteria from the fish’s gut (designated Enterobacter C6-6) and found that it inhibited the growth of Flavobacterium psychrophilum, the organism that causes Coldwater Disease.
Cain and Dr. Douglas Call, his WSU-based research partner since 2001, found that by adding C6-6 to fish feed as a probiotic they could limit the damage caused by Coldwater Disease – but they’re not quite sure why. “We know that C6-6 produces a toxin,” Call said. “This toxin kills the bacteria although we’re trying to get more funding to figure out how this works in the fish itself.” Read more »
Sam Knob Trail restoration under construction. Photo courtesy of Ward Deaton, CASP
This post was submitted on behalf of the Pisgah Ranger District recreation staff and fire crew – Paul Ross, Forest Service Office of Communication
Accessed by the Blue Ridge Parkway and surrounded by the Black Balsam Mountains, the Sam Knob Project is located in one of the most scenic and highly visited portions of the Pisgah Ranger District. As we celebrate National Trails Day and National Fishing and Boating Week, we are highlighting this location as a showcase of how recreational trail design can protect critical fish and wildlife habitat and enhance user experiences. Read more »
Lamprey, or Asum in the native language, are a culturally significant food source to the Yakama Tribe. Here, Deputy Under Secretary Mills joins members of the Tribe in releasing lamprey into the Toppenish Creek as part of the tribe's reintroduction program. NRCS photo.
Recently, I visited the 1.1 million acre Yakama Nation reservation located in southwestern Washington State. Touring the reservation, I was able to see first hand how funds from the Regional Conservation Partnership Program (RCPP) will help the over 10,000 members of the Yakama tribe.
Through RCPP, NRCS is working with the tribe to accelerate the recovery of fish stocks, including the Middle Columbia Steelhead, reconnect floodplains and improve irrigation water conservation. Read more »
Catfish farming has helped Mississippi agriculture’s bottom line. Check back next week as we spotlight another state and look at more information from the 2012 Census of Agriculture.
The Census of Agriculture is the most complete account of U.S. farms and ranches and the people who operate them. Every Thursday USDA’s National Agricultural Statistics Service will highlight new Census data and the power of the information to shape the future of American agriculture.
Mississippi, commonly called the “Magnolia State”, has long been one of the most rural states in the United States. However, agriculture makes significant contributions to all of Mississippi’s 82 counties. Agriculture is a leading industry in Mississippi. According to the latest Census of Agriculture, our farmers generated $6.4 billion in market value of agricultural products sold in 2012, a 32 percent increase from the last census.
The census counted almost 11 million acres of farmland, down 5 percent from the 2007 Census. The average farm size increased to 287 acres, up 5 percent from 2007. The highest concentration of cropland is located in the Delta Area of the State. Read more »
Southern Appalachian Brook Trout spawn in the Fall when brightly colored males court females, who dig nests known as redds in clean streambed gravels. (Copyright photo courtesy Freshwaters Illustrated/Dave Herasimtschuk)
For a community of brook trout in the southern Appalachian mountains, there are signs that the good times are coming back. To some, these native inhabitants might even appear to be waving a welcome home sign.
Their numbers almost vanquished, they are as much a cultural emblem of these rugged and lush mountain forests as they are an important signal for the highest quality drinking water. This is what makes their fate of such interest to the millions who live in the surrounding watersheds and to those involved in an inspiring partnership to help them along. They are also the subject of a new film, “Bringing Back the Brooks: Reviving the South’s Trout” produced by Freshwaters Illustrated in partnership with the U.S. Forest Service. Read more »
Maps showing the study area and locations of stream temperature data that were contributed by hundreds of people working for more than 80 natural resource agencies to develop high-resolution stream temperature scenarios that encompass 450,000 kilometers of stream. (Courtesy of U.S. Forest Service Rocky Mountain Research Station)
Climate change and species invasions raise fears that iconic cold-water species like trout, salmon, and char could be extirpated from most of their ranges this century.
A new study by researchers at the U.S. Forest Service Rocky Mountain Research Station published in Global Change Biology shows that high-resolution stream temperature scenarios can be used to forecast which streams will serve as climate refuges for native cutthroat and bull trout later this century and that many streams are forecast to be too cold to be invaded by non-native species. Read more »