logo
[Log In]
Find us on
Twitter Facebook LinkedIn
Skip Navigation Links
logo 9/27/2024 12:34:06 AM     
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
5276Group braces for ‘really bad year’ for salmon population in Sackville RiverGlobal News2016-08-16CA
5277Heat stress that killed thousands of salmon in Alaska is a sign of things to come, scientist warnsCBC News2019-08-24CA
5278Rocky River construction stalling salmon, author saysCBC News2015-08-18CA
5279Fish with ‘two jaws’ caught in New YorkIndependent2019-08-22US
5280От Ганга до Волги: как спасти реки от загрязнения?habr2019-08-22RU
5281Lured in: Fishing at stocked trout pondsCBC News2019-08-22CA
5282Gulf of St. Lawrence cod extinction 'highly probable,' says DFOCBC News2019-08-21CA
5283Fly-fishing in the remote reaches of HokkaidoTheJapanLife2019-08-20JP
5284Genetic study of sockeye salmon in B.C. river suggests 75% decline since 1913CBC News2019-08-20CA
5285The 'Codfather' will never fish again, after fake Russian mobsters took him downWashington Post2019-08-20CA
5286'What fishing season?': Local First Nations worry about state of fishing in Fraser RiverCBC News2019-08-17CA
5287Fish buyer in P.E.I. opens plant to promote Canada's sustainable tuna fisheryctv news2019-08-12CA
5288Invasion of the giant goldfish: Pets overrun local swimming holeCBC News2019-08-10CA
5289After fish die in river, Quebec tells Environment Canada: Go fish for dataOttawa Citizen2019-08-10CA
5290Invasive fish being pulled from Banff lakes to protect native speciesCBC News2015-07-21CA
5291Зубастый монстр: огромного сома выбросило на берег в Самарской областиRed Star2019-08-10RU
5292Un pez muerde a una mujer en una playa de Elche y le secciona el tendón del pieEl Mundo2019-08-08ES
5293Government collaboration questioned in dead fish investigationCBC News2019-08-09CA
5294Россиянам станет сложнее рыбачитьlenta2019-08-09RU
5295US fish stocks at sustainable levels at near record-highSaipan Tribune2019-08-08US
5296Time of essence as Fraser River slide blocks spawning salmonCBC2019-08-06CA
5297К берегам России впервые приплыл сельдяной корольРИА Новости2019-08-08RU
5298Why Triathletes Should Be Fierce Advocates for Clean Watertriathlete2019-08-02CA
5299Expert raises doubt about cause of fish deaths near Ottawa this summerToronto Star2019-08-07CA
5300Giant 'GOLDFISH' found in US lake is actually '100-year-old' mutant bigmouth buffalo weighing 32 poundsdailymail2019-06-21US
◀ ← ♠ 214 215 216 → ▶ 211 of [217 - pages.]
© MB Co 2017-2024. All rights reserved. Developed by S@Shishkina