If they successfully invade Lake Erie, Asian carp could eventually account for about a third of the total weight of fish in the lake and could cause declines in most fish species — including prized sport and commercial fish such as walleye, according to a new computer modeling study. However, most of the expected declines in Lake Erie will not be as extreme as some experts have predicted, according to the food-web study by the University of Michigan’s Hongyan Zhang and colleagues from other American and Canadian research institutions. A few fish species, including smallmouth bass, would likely increase…Due to media interest, this article is now available free online.
The American Fisheries Society (AFS) is the world’s oldest and largest organization dedicated to strengthening the fisheries profession, advancing fisheries science, and conserving fisheries resources.
Transactions of the American Fisheries Society
It seems as though every winter ecology paper contains some variant of this sentiment — we know that winter is important, but we’re not crazy enough to study it. As researchers, we’ve built sampling regimes that ignore an entire season because winter is considered harsh and unforgiving. It’s cold, sharp, and sometimes deadly to us, and so we operate under the assumption that the same goes for the creatures we study. Alas, it is not so. There’s a lot going on under the snow, and even more going on under the ice…
North American Journal of Fisheries Management
Phenology is the study of cyclic and seasonal natural phenomena, especially in relation to climate. Although everyone understands it intuitively (imagine looking for the first crocuses emerging from under the snow in your yard), it is one of the least understood impacts of climate change. Adam Peer and T. J. Miller of the Chesapeake Biological Laboratory at the University of Maryland Center for Environmental Science used a time series of Striped Bass Morone saxatilis gill net data obtained during spawning to examine how changes in climate might affect harvest in the fishery, which has a fixed opening date…