Sinking Fish May Fast-Track Mercury Pollution to the Deep Sea 
By Carolyn Wilke US Source: eos.org 12/22/2020
Carolyn Wilke
Isotopic analysis indicates that mercury found in deep-sea organisms may have an origin in carrion from near the surface

Mercury pollution at Earth’s surface is leaving a mark on the deepest parts of the ocean. A new study suggests that sinking fish carcasses transport the element to seafloor ecosystems.
 

“Mercury is not limited to the upper thousand meters of the ocean, as we once thought,” said Joel Blum, a biogeochemist at the University of Michigan in Ann Arbor. Blum and his colleagues scoped out the mercury content of organisms collected from roughly 6,000–10,000 meters below the ocean surface. That mercury contained chemical clues pointing to fish carcasses from shallower waters as its source, researchers reported in Proceedings of the National Academy of Sciences of the United States of America. The carrion provides a mercury “fast track” to the deep ocean, Blum said.

 
Continue...

News Id SourceStampcountry
976Diamond Valley familys fishing show sees successokotoksonline2024-01-25CA
977B.C’s Cowichan River named No. 2 fishing destination in Canada in 2024westcoasttraveller2024-01-23CA
978BC fish face new threat from microscopic parasite as government funding dries upinfotel2024-01-08CA
979How to protect fish and reptiles during Maines power outageswabi2024-01-08TV
980Two nabbed fish bombing and spearfishing in waters off Pulau Sepanggarthestar2024-01-11MY
981AI and satellite data map true scale of untracked fishing and ocean industrymongabay2024-01-10US
982Spain sanctions fishing vessels for illegally going dark near Argentine watersmongabay2024-01-11SP
983Tories urged to end idiotic £1.8bn tax break for UK fishing fleettheguardian2024-01-13UK
984Former UMD coach lands huge fish through the iceechopress2024-01-21US
985Зимняя ориентация после праздниковohotniki2024-01-17RU
9866 Fish That Can Survive and Move Out of the Watermsn2024-01-21US
987Scientists Reveal Secret World of Fish Countries That Divide Arkansasnewsweek2024-01-08US
988Mating anchovies stir up the sea as much as a major stormtheconversation2024-01-11AU
989Washington conservation group proposes listing Alaska king salmon under Endangered Species Actalaskabeacon2024-01-11US
990New funding available for fisheries projects across Englandpoandpo2024-01-16UK
991People horrified after seeing how big a tuna fish actually isunilad2024-01-17NO
992Amorous fish blamed for mysterious sound around Florida bayyahoo2024-01-19US
993Whirling disease confirmed in B.C., sparking fears for fish populationstheweathernetwork2024-01-20CA
994Notice of N.B. fish farm escape in December came too latemsn2024-01-18CA
995Scientists identify, count tiny plastic particles in Lake Superiorechopress2024-01-19US
996DSM-firmenich launches tool to measure LCAs in sea bassthefishsite2024-01-18US
997Сложная, но интересная ловля горбыля в Черном мореohotniki2024-01-14RU
998a battle over Alaska Native fishing rights heats upsalon2024-01-04US
999fishermen have made a pact that safeguards their bay for future generationsABC Rural2024-01-05AU
1000Im a fisherman who hasnt caught a fish in two years because of ridiculous Welsh lawswalesonline2023-12-31UK

219 220 221 39 of [222 - pages.]