Fisheries News & Science
Along the West Coast, lingcod fish are top predators — voracious eaters that aren’t picky about where their next meal comes from. But lingcod in the Pacific Ocean used to be overfished, to the point where managers created protected areas for these fish and other depleted groundfish species, such as yelloweye and canary rockfish. Photo... Read More
The decline of aquatic insects downstream from some hydroelectric dams has been linked to a widespread practice known as hydropeaking, whereby river flows are increased during the day when electricity demands are large, according to a new study led by the U.S. Geological Survey, along with researchers from Oregon State University, Utah State University, and... Read More
Interview by Natalie Sopinka What species of fish is in this image? This is a 3D volume rendering from a micro-computed tomography (CT) scan of a Scalyhead Sculpin skeleton. Computed tomography scanning is commonly used as a diagnostic tool in medicine, but it is also incredibly useful for studying the biology of animals.The... Read More
By Leah Baumwell, IGFA Conservation Coordinator, Email: [email protected] “I wonder why he jumped, the old man thought. He jumped almost as though to show me how big he was.” —Ernest Hemingway, The Old Man and the Sea Collectively referred to as “billfish,” marlin, sailfish, and spearfish (family Istiophoridae) are some of the largest and most magnificent... Read More
Cobia that escaped from an aquaculture farm off the coast of Ecuador are heading northward and may reach Southern California, says UCSB marine biologist Milton Love. Several months ago, tens of thousands of Cobia, a species of fish farmed as a high-quality food source, escaped from an aquaculture facility off the coast of Ecuador. Almost mature, the fish are... Read More
Illuminating fishing nets is a cost-effective means of dramatically reducing the number of sea turtles getting caught and dying unnecessarily, conservation biologists at the University of Exeter have found. Dr. Jeffrey Mangel, a Darwin Initiative research fellow based in Peru, and Professor Brendan Godley, from the Centre for Ecology and Conservation at the University’s Penryn... Read More
A research group led by Yamamoto Satoshi, a research fellow at the Kobe University Graduate School of Human Development and Environment, has shown that measuring quantities of fish DNA in seawater can reveal how many fish inhabit that environment. This discovery could enable quicker and more effective surveys of fish distribution, and has potential applications in... Read More
In this Issue: • President’s Column One Fish, Two Fish • Policy Column Climate Change and Fish • Letter From the Executive Director AFS Annual Meetings: What Works and What Doesn’t • Science Communication Narratives of Nature • Interview Q&A with John Waldman FEATURES • A Resilience Approach Can Improve Anadromous Fish Restoration •... Read More
Studies on the fish populations, fisheries, and limnology of Oneida Lake, New York, started in the late 1950s at the Cornell University Biological Field Station. Early research concentrated on Walleye, Yellow Perch, and their interactions but was soon expanded to include interactions with the lake ecosystem, an early example of the ecosystem approach. Research on... Read More
Emily Yehle, E&E reporter Published: Wednesday, January 20, 2016 Last year was the world’s warmest year ever recorded, beating out 2014 in average temperatures over land and ocean surfaces, according to both NASA and the National Oceanic and Atmospheric Administration. Federal scientists announced the news this morning, marking the second year in a row that... Read More
