This week, we picked up 48 Barrens Topminnows (Fundulus julisia) from Matt at the Tennessee Aquarium. The Barrens Topminnow, (or BTMs), are one of the most imperiled fishes in the southeastern U.S. They are restricted to three counties in central Tennessee, and much of their habitat has been affected by human encroachment and ongoing drought. Worst of all has been the introduced Western Mosquitofish (Gambusia affinis), which outcompete BTMs. Drought conditions have been so severe at times that biologists have had to "rescue" populations from shrinking bodies of water that are nearly dry. The fish we received at TNARI are from one such population. TNARI will provide additional husbandry space for BTM propagation to help restore this beautiful southeastern fish.
If you would like to see a picture, click on the link below:
http://www.fws.gov/dalehollow/imperiled/BTMMALE.jpg
Friday, April 25, 2008
Monday, April 14, 2008
Happy Anniversary, TVA v. Hill

This week marks the 30th anniversary of one of the most famous environmental law cases in the US--TVA v. Hill. This case was the first time the Endangered Species Act was really tested--could a small fish from eastern Tennessee stop the construction of a $100 million dam? The answer was yes--for a little while.
This case has already been endlessly debated, and we're not likely to change anyone's minds now. Here at TNARI, we're happy that there are still snail darters around to study and conserve. They're a good reminder that we ought to be considering the impacts of our actions on all of biodiversity, not just the commercially important species.
If you'd like to read more about this, this Knoxville News article talks about the case and recent , or for a more legal angle, a Tennessee Bar Association article written by the attorney who argued the case on behalf of the fish.
If you'd like to read more about this, this Knoxville News article talks about the case and recent , or for a more legal angle, a Tennessee Bar Association article written by the attorney who argued the case on behalf of the fish.
Tuesday, November 13, 2007
Fun with the Fish Scientists
We're still recovering from last week's meeting of the Southeastern Fishes Council... man, those ichthyologists know how to have a good time! Most of our day was spent in talks with titles like "Systematics of the Etheostoma rufilineatum Species Group (Teleostei: Percidae) Based on Both Mitochondrial (Cytochrome B) and Nuclear (S7 Intron) Loci." We had a long session on captive propagation, which brought up both past projects in the Southeast (like our very own Save the Sturgeon program) and how to optimize captive propagation programs. In between talks, we got to visit the Aquarium and hang with the big fish:

We also took them behind the scenes at the Aquarium, since most ichthyologists know more about what is necessary to keep fish alive in the wild instead of alive in a tank.

It wasn't all pure science, either. Bernie Kuhajda, the SFC chair, helped me write an editorial for the Tennessean about water resources in the Southeast. You can read it here.
Now it's time to recover... we host this group in Chattanooga again next year!
We also took them behind the scenes at the Aquarium, since most ichthyologists know more about what is necessary to keep fish alive in the wild instead of alive in a tank.
It wasn't all pure science, either. Bernie Kuhajda, the SFC chair, helped me write an editorial for the Tennessean about water resources in the Southeast. You can read it here.
Now it's time to recover... we host this group in Chattanooga again next year!
Wednesday, November 7, 2007
Welcome Southeastern Fishes Council!

We're happy to welcome the Southeastern Fishes Council to their first annual stand-alone meeting on Thursday and Friday, November 8 and 9. Scientists from 14 different states are traveling to Chattanooga to share information and ideas on southeastern fish conservation. We're particularly glad about the timing of this meeting since the drought has devastated the rivers and streams of this unique and diverse region.
Wednesday, October 31, 2007
Sturgeons Released!
This Halloween, we helped out some of our favorite monsters--Lake Sturgeon. While the fish we released today were just babies (six months old and less than a pound!), we hope these 700 fish grow up to rival the size of the largest Lake Sturgeon ever caught, 310 pounds and 8 feet long. Of course, it's going to take them quite awhile to get that big... Lake Sturgeon can live up to 150 years!
We had some help from students at Gap Creek Elementary School, just across the French Broad River from our release site. The kids weren't at all scared to get in the water with our monster fish!
We had some help from students at Gap Creek Elementary School, just across the French Broad River from our release site. The kids weren't at all scared to get in the water with our monster fish!
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