Special Section: Hatcheries and Management of Aquatic Resources (HaMAR)

The American Fisheries Society (AFS) has routinely assessed the contributions of hatcheries to natural resource management, and issued recommendations to guide managers in the best uses of hatchery-origin fish. In response to changes in fisheries management policy, new information on supplementation and rehabilitation, and fisheries issues that had arisen, AFS undertook a new assessment in.. read more →

A New Beginning for South African Native Fish

In an article in this month’s Fisheries, an international collaboration between AFS and South African institutions resulted in South Africa’s first non-native fish eradication using rotenone in February 2012 in the Rondegat River, a small headwater stream in South Africa’s Cape Floristic Region (CFR) that had been invaded by Smallmouth Bass. The CFR is a.. read more →

Boom and Bust in Lake Michigan

Lake Michigan’s balancing act Boom and bust: Nature is full of examples of what happens when the balance between predators and prey gets out of whack. But when that balance is between two nonnative species in the vastly altered ecosystem of the Great Lakes, puzzling patterns may emerge. In a recent paper in Transactions of.. read more →

It’s a girl! Sonograms help endangered fish

Even fisheries scientists can have a difficult time determining whether a fish is male or female by just glancing at it. So, imagine if you had a hatchery full of several hundred fish that you hope to breed in order to sustain an endangered species. In a recent article in the North American Journal of.. read more →

What’s a Striped Bass Worth?

Every year, thousands of anglers travel to Southern reservoirs hoping to land a selfie-worthy enormous Striped Bass. But is the cost of stocking Striped Bass justified, especially when there are other species to fish for in these reservoirs that don’t require stocking? In a recent article in the North American Journal of Fisheries Management, scientists.. read more →

Little Chubs Migrate, Too

When you think of migrating fish, usually silvery salmon gracefully leaping up waterfalls in the Pacific Northwest come to mind. In fact, many freshwater fish migrate in order to spawn, even the small minnows and chubs of the large, muddy rivers of the Great Plains. These large rivers are now  interrupted by numerous dams, diversion.. read more →

How Do Fish Catch a Virus? They Eat It

Viral hemorrhagic septicemia virus (VHSV) is just as unpleasant as it sounds for fish, leading to considerable losses of fish both in the wild and at some European fish farms.  Unfortunately, this disease has recently spread to the Great Lakes region but scientists are still unsure how it is transmitted. In a recent paper in.. read more →