For many of us, our jobs directly or indirectly have to do with estimating fish populations. We may be part of a project that samples specifically to estimate abundance or productivity, or we may be working on a specific biological question that has demographic implications. For all stock assessments, harvest (catch or removal) is a…
Category: Fisheries Management
Calling it Quits: When to stop fishing?
Most of us have had a bad day fishing—the fish aren’t biting, the bait isn’t right, or the weatherman got it all wrong. And we each know what our threshold is for willing to make that one last cast. But what motivates someone who is dependent on fishing to give up trying? This is the…
5% of US Freshwater Fish Species Petitioned for Endangered or Threatened Status
Watersheds with 10 or more at-risk fish and mussel species are concentrated in the Southeast, reflecting the extraordinary species diversity of rivers and streams in this region. (Rivers of Life) The dynamic physiographic provinces spanning the Southeastern United States, comprised of mountains, piedmont, and coastal plains, combined with the historic absence of ice sheets…
Updates to fish reproductive biology
In the Spring of 2011, the American Fisheries Society’s new journal, Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, published a special section on Fisheries Reproductive Biology. Much of the initial work for these articles took place at the Fourth Workshop on Gonadal Histology, held in Spain in 2009. I would like to highlight…
To interfere or not, that is the question?
By: Dana Sackett We are all familiar with the devastating impacts invasive species can have on aquatic ecosystems. As a result of these adverse impacts, many studies have been dedicated to examining the invasive species problem, including: the process of invasion, predicting which species are likely to become invasive, and the ecological and economic damage…
High Sierra Trout Stocking
By Patrick Cooney Duane Johnson Firmly strapped into the only remaining passenger seat of an airplane, barf bag perched at my beck and call, I was surrounded by the precious cargo I had raised all summer in preparation for this very day. It started out as a gentle flight, but quickly became the wild ride…
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