Environment
Pisces porn: Could the sounds of spawning lure lake trout?
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Researchers have discovered that the fish make noise on spawning beds, a finding that could lead to better monitoring and perhaps help boost their numbers.
Environment
Do two fish contaminants add up to a greater health threat?
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A new study says that Great Lakes fish consumption advisories would be more restrictive if regulators considered how multiple contaminants could combine into a greater health threat.
Environment
Great Lakes vulnerable to outbreak of fish virus
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A new study shows that large parts of the Great Lakes can host a virus responsible for thousands of fish deaths in the region.
Environment
Usually the villain, invasive species odd hero for native fish
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Cisco supported one of the largest fisheries in the Great Lakes before their collapse 60 years ago. They’re now mounting a comeback, and an invasive species is opening the door.
Environment
Unique lake trout could help restore Lake Michigan population
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The trout in Lake Michigan were once wiped out, but one strain might help bring them back.
Agriculture
CSI Great Lakes: Fish forensics
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By CARIN TUNNEY
Capital News Service
LANSING — Some trout in Great Lakes tributaries are just as contaminated with a chemical linked to respiratory, liver and skin ailments as the Pacific salmon that they eat, according to a new study. The findings should help those making decisions on eating fish, dam removal and stocking, according to the researchers. Pacific salmon, such as Chinook and coho, are large sports fish that live most of their lives in the Great Lakes and then spawn and die in rivers and streams.
The study by University of Notre Dame biologists looked for PCBs (polychlorinated biphenyls) in salmon tissue during autumn spawning runs in tributaries of lakes Huron, Michigan and Superior. It compared that tissue with the tissue of native brook trout and mottled sculpin that live full time in the same rivers and eat the eggs and flesh of the salmon. The results showed the organic pollutant levels of the two types of fish are a close match in those living in Lake Huron and Lake Michigan tributaries.
Environment
Lake bottoms, visible from space, may hint at trout comeback
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By COLLEEN OTTE
Capital News Service
LANSING — It might seem counterintuitive, but when trying to examine the bottom of Lake Huron, researchers discovered it is helpful to take a look from space. Satellite imagery offers a new tool for identifying nearshore habitats where lake trout spawn across broad areas of the Great Lakes, according to a recent study in the Journal of Great Lakes Research. Researchers have been using satellite imagery to look at how the distribution of lake-floor algae in the Great Lakes is changing, said Amanda Grimm, lead author of the study and an assistant research scientist at the Michigan Tech Research Institute in Ann Arbor. While studying lake trout rehabilitation in the Drummond Island Refuge in northern Lake Huron, U.S. Geological Survey researchers noticed that the stony reefs, where they found lake trout laying eggs, were cleaner of algae than surrounding areas, Grimm said. They realized the difference might be seen from satellite, which would help find good lake trout spawning grounds.
fish
Grand River: recreational landmark at the heart of Old Town
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By Sergio Martínez-Beltrán
and Zachary Swiecicki
Old Town Lansing Times Staff Reporters
Grand River is a part of the history of Old Town and the state of Michigan. The Grand is the longest river in the entire state, running from Grand Haven to Jackson. It originates in Hillsdale County and approximately 270 miles later, where it ends in Lake Michigan. As the river’s popularity grew in the seventeenth and eighteenth centuries, it was used as a quicker route of travel and a statewide trade route. Now, the Grand River is a place for community members to come together and participate in different recreational activities, such as fishing.
Business & Economy
Preuss Pets updates its quirky look
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By Cynthia Lee
Old Town Lansing Times Staff Reporter
Preuss Pets store in Old Town had artist Bob Welton installed an artsy look to the outside of the store. The tropical trees adds the attraction to the unique pet store. The store has always been hard to miss when entering Old Town. The pet store enhanced their tropical appearance, adding more features that help give Old Town it unique quirky look. “I felt as if we were missing something, and I love adding new things to the store,” said owner Rick Preuss.
Environment
Fish may benefit from replacing culverts with bridges
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By ERIC FREEDMAN
Capital News Service
LANSING — Replacing culverts with bridges may benefit fish because of improved connectivity of streams in a watershed, a pilot project in the Huron-Manistee National Forests shows. But doing so also creates risks of more pathways for invasive species to spread and of fine sediments that can smother fish spawning beds, a study by U.S. Forest Service and University of Notre Dame scientists cautioned. “These trade-offs need to be weighed on an individual basis,” said Nathan Evans, a doctoral student at Notre Dame and lead author of the study. “Each stream is different. The pros may outweigh the cons in one stream.