Sex that moves mountains: Spawning fish can influence river profiles 
By Eric Sorensen US Source: WSU News 10/19/2017
Eric Sorensen
It turns out that sex can move mountains.

A Washington State University researcher has found that the mating habits of salmon can alter the profile of stream beds, affecting the evolution of an entire watershed. His study is one of the first to quantitatively show that salmon can influence the shape of the land.

Alex Fremier, lead author of the study and associate professor in the WSU School of the Environment, said female salmon “fluff” soil and gravel on a river bottom as they prepare their nests, or redds. The stream gravel is then more easily removed by flooding, which opens the underlying bedrock to erosion.
 

“The salmon aren’t just moving sediment,” said Fremier. “They’re changing the character of the stream bed, so when there are floods, the gravel is more mobile.”

The study, “Sex that moves mountains: The influence of spawning fish on river profiles over geologic timescales,” appears in the journal Geomorphology.

 
Pend Oreille Lake Salmon, Chinook Continue...

News Id SourceStampcountry
4651‘Everybody’s worst nightmare’: Bering Sea fishermen on edge after COVID-19 closes second plantKUCB - Unalaska & Nat Herz. AKPM - Anchorage2021-01-22US
4652Poaching on River Trent up as people catch fish to eat during lockdownstaffordshire2021-01-22UK
4653Passionate local angler says 'fishing is not just for boys and men'orilliamatters2021-01-21CA
4654Unknown sumo champion-class fish species found off Shizuokaasahi2021-01-26JP
4655B.C. wild salmon in short supply: reportctvnews2008-06-16CA
4656School Of Robofish Provides Basis For Underwater Robot Teams; 'Don't Need Oxygen'Underwatertimes2008-06-06US
4657‘Extremely rare’ fish sold at auction for $3,425usatoday2021-01-25US
4658A Montana Sampler: 5 Unique Fisheries in 5 DaysMontana Angler2021-02-01US
4659Researchers Document Rapid, Dramatic 'Reverse Evolution' In The Threespine Stickleback Fishunderwatertimes2008-05-15US
4660Biologist takes B.C. Liberals to court to save wild salmonstraight2008-05-06CA
4661Researchers Develop Glow-in-the-dark Fish Powered By Artificial SugarUnderwatertimes2008-05-04US
4662Henry County man hauls in over 20,000 pounds of fishwbbjtv2021-02-01US
4663No sex for all-girl fish speciesbbc2008-04-23UK
4664Angler catches heavyweight carpbbc2008-04-18UK
4665I caught a fish bigger than me... honestly!Liverpool Echo2008-04-18UK
4666Maryland Angler Snags State Record 5-foot-long Blue Catfish; 'We Needed A Larger Net'Underwatertimes2008-03-26US
4667Galway fish farm no longer allowed to bathe diseased salmon in lake wateririshtimes2021-01-18IR
4668Angler paid nearly $50,000 for fishing the Columbia and Snake riverstri-cityherald2021-01-16US
4669Law enforcement reviewing flipper floundergloucester times2021-01-20US
4670Feds warn entire salmon season could be haltedChronicle Staff Writer2012-02-09US
4671Researchers Find Aquaculture Promising Method to Grow Black Sea Bassphys.org2012-02-09CA
4672Great Lakes fish soak in new poisonThe Muskegon Chronicle2008-03-09US
4673Labs don't have to report 'Frankenfish' escapes: Auditthe star2008-03-06US
4674Antarctic fish's winter 'sleep'bbc2008-08-05CA
4675Nova Scotia takes no harm, no foul approach to fish farm lease violationscbc2021-01-19CA

215 216 217 186 of [218 - pages.]