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Asian Clams and Native Mussel Growth

Native freshwater mussels grew more slowly when invasive Asian clams (Corbicula fluminea) were abundant. The study was led by Wendell Haag, a USDA Forest Service research fisheries biologist. It was published in the journal Freshwater Biology. Mussels live out of sight – buried in the river bottom, eating algae and other small particles of organic material. Mussels are filter feeders and key members of aquatic ecosystems.


Freshwater Fishes of North America, Volume 2

The highly anticipated second volume of Freshwater Fishes of North America was just published by Johns Hopkins University Press. This volume was edited by USDA Forest Service fisheries research scientist Mel Warren and four other editors. Warren also contributed to seven of the book’s 35 chapters.


Darter Conservation

Increasingly, recovery plans for imperiled fish species include raising them in captivity and releasing them in the wild. Crystal Ruble of Conservation Fisheries, Inc, with SRS researchers Ken Sterling and Melvin Warren published a protocol for captive propagation of the Yazoo Darter (Etheostoma raneyi). The researchers also summarize its early life-history.

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