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
4101Brexit Britain's fishing industry set for boom as huge tuna numbers discovered off coastexpress2021-04-07UK
4102Sweden's yen for herring roe fuels Lake Superior fisherymprnews2012-11-14US
4103‘Frankenfish’: Undercover sting lands Markham snakehead fish dealer in jailthestar2012-11-14CA
4104Taiwanese engineer first florescent pink angelfishTaiwan News2012-11-09TW
4105Fish memorial proposed for hundreds of bass killed in traffic accidentscpr2012-10-30US
4106Sockeye salmon run in Shuswap shaping up to be lower than expectedinfotel2019-09-24CA
4107Adams River salmon run collapse a man-made crisissaobserver2019-02-16CA
4108Column: Reflecting on changes along the Adams Riversaobserver2020-09-23CA
4109Adams River - Tsútswecw Provincial Park Photographing the Salmon Runcanadiannaturephotographer2018-10-20CA
4110Scientists turn fish parts into environmentally friendly plasticupi2021-04-05CA
4111Kentucky fisherman catches record-breaking fish, searches for certified scaleFox News2021-04-08US
4112Fish find way around polarization problemnature2012-10-22UK
4113Bones of 'living fossil' found in TexasScience News2012-10-24US
4114These fish stole an antifreeze gene from another fish and became natural GMOsCBC News2021-04-06CA
4115A Cruickshank River damn would help alleviate our drought issuescomoxvalleyrecord2019-05-30CA
4116Take a hike, see devastation in the Comox Lake watersheddecafnation2019-08-05CA
4117Angling For More Than A Fishcvcollective2021-04-18CA
4118Hooking into the Revelstoke fishing sceneRevelstoke Mountaineer Magazine2017-08-17CA
4119Proposed fish farm permits stall while EPA reviews environmental effectsnews-press2021-04-03US
4120Taiwan responds to NGO reports on forced labor within its fishing fleetseafoodsource2021-04-02TW
4121Salmon with sea lice pulled from storesUPI2012-10-22CA
4122Chesapeake Striped Bass Reproduction At Record Lowbaltimore2012-10-17US
4123Michigan Angler Catches Record-Breaking Great Lakes Muskiedetroit.cbslocal2012-10-20US
4124Mystery Florida eyeball is probably from '10ft swordfish', experts saytheguardian2012-10-12US
4125Rare Gold Saury Worth Weight in Actual Gold, Apparentlysoranews242012-10-05JP

215 216 217 164 of [218 - pages.]