Kilauea lava fuels phytoplankton bloom in the North Pacific Ocean

Type : ACL
Nature : Production scientifique
Au bénéfice du Laboratoire : Non
Statut de publication : Publié
Année de publication : 2019
Auteurs (34) : WILSON Samuel,t HAWCO Nicholas,j ARMBRUST E, virginia BARONE Benedetto BJÖRKMAN Karin,m BOYSEN Angela,k BURGOS Macarena BURRELL Timothy,j CASEY John,r DELONG Edward,f DUGENNE Mathilde DUTKIEWICZ Stephanie DYHRMAN Sonya,t FERRON Sara FOLLOWS Michael,j FOREMAN Rhea,k FUNKEY Carolina,p HARKE Matthew,j HENKE Britt,a HILL Christopher,n HYNES Annette,m INGALLS Anitra,e JAHN Oliver KELLY Rachel,l KNAPP A,n LETELIER Ricardo,m RIBALET François SHIMABUKURO Eric,m TABATA Ryan,k,s TURK-KUBO K,a WHITE Angelicque,e ZEHR J,p JOHN S KARL D,m
Revue scientifique : Science
Volume : 365
Fascicule : 6457
Pages :
DOI : 10.1126/science.aax4767
URL : -
Abstract : From June to August 2018, the eruption of KTlauea volcano on the island of Hawai'i injected millions of cubic meters of molten lava into the nutrient-poor waters of the North Pacific Subtropical Gyre. The lava-impacted seawater was characterized by high concentrations of metals and nutrients that stimulated phytoplankton growth, resulting in an extensive plume of chlorophyll a that was detectable by satellite. Chemical and molecular evidence revealed that this biological response hinged on unexpectedly high concentrations of nitrate, despite the negligible quantities of nitrogen in basaltic lava. We hypothesize that the high nitrate was caused by buoyant plumes of nutrient-rich deep waters created by the substantial input of lava into the ocean. This large-scale ocean fertilization was therefore a unique perturbation event that revealed how marine ecosystems respond to exogenous inputs of nutrients.
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Citation :
Wilson ST, Hawco NJ, Armbrust E , Barone B, Björkman KM, Boysen AK, Burgos M, Burrell TJ, Casey JR, DeLong EF, Dugenne M, Dutkiewicz S, Dyhrman ST, Ferron S, Follows MJ, Foreman RK, Funkey CP, Harke MJ, Henke BA, Hill CN, Hynes AM, Ingalls AE, Jahn O, Kelly RL, Knapp AN, Letelier RM, Ribalet F, Shimabukuro EM, Tabata RKS, Turk-Kubo KA, White AE, Zehr JP, John S, Karl DM (2019) Kilauea lava fuels phytoplankton bloom in the North Pacific Ocean. Science 365 | doi: 10.1126/science.aax4767