Skip to main content

Diel vertical migration: Ecological controls and impacts on the biological pump in a one-dimensional ocean model

Author(s): Bianchi, Daniele; Stock, Charles; Galbraith, Eric D; Sarmiento, Jorge L

Download
To refer to this page use: http://arks.princeton.edu/ark:/88435/pr12f7jq8p
Full metadata record
DC FieldValueLanguage
dc.contributor.authorBianchi, Daniele-
dc.contributor.authorStock, Charles-
dc.contributor.authorGalbraith, Eric D-
dc.contributor.authorSarmiento, Jorge L-
dc.date.accessioned2022-01-25T14:59:01Z-
dc.date.available2022-01-25T14:59:01Z-
dc.date.issued2013-02-22en_US
dc.identifier.citationBianchi, Daniele, Charles Stock, Eric D. Galbraith, and Jorge L. Sarmiento. "Diel vertical migration: Ecological controls and impacts on the biological pump in a one‐dimensional ocean model." Global Biogeochemical Cycles 27, no. 2 (2013): 478-491. doi:10.1002/gbc.20031.en_US
dc.identifier.issn0886-6236-
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr12f7jq8p-
dc.description.abstractDiel vertical migration (DVM) of zooplankton and micronekton is widespread in the ocean and forms a fundamental component of the biological pump, but is generally overlooked in global models of the Earth system. We develop a parameterization of DVM in the ocean and integrate it with a size‐structured NPZD model. We assess the model's ability to recreate ecosystem and DVM patterns at three well‐observed Pacific sites, ALOHA, K2, and EQPAC, and use it to estimate the impact of DVM on marine ecosystems and biogeochemical dynamics. Our model includes the following: (1) a representation of migration dynamics in response to food availability and light intensity; (2) a representation of the digestive and metabolic processes that decouple zooplankton feeding from excretion, egestion, and respiration; and (3) a light‐dependent parameterization of visual predation on zooplankton. The model captures the first‐order patterns in plankton biomass and productivity across the biomes, including the biomass of migrating organisms. We estimate that realistic migratory populations sustain active fluxes to the mesopelagic zone equivalent to between 15% and 40% of the particle export and contribute up to half of the total respiration within the layers affected by migration. The localized active transport has important consequences for the cycling of oxygen, nutrients, and carbon. We highlight the importance of decoupling zooplankton feeding and respiration and excretion with depth for capturing the impact of migration on the redistribution of carbon and nutrients in the upper ocean.en_US
dc.format.extent478 - 491en_US
dc.language.isoenen_US
dc.relation.ispartofGlobal Biogeochemical Cyclesen_US
dc.rightsFinal published version. Article is made available in OAR by the publisher's permission or policy.en_US
dc.titleDiel vertical migration: Ecological controls and impacts on the biological pump in a one-dimensional ocean modelen_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.1002/gbc.20031-
dc.identifier.eissn1944-9224-
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

Files in This Item:
File Description SizeFormat 
Diel_vertical_migration_Ecological_controls_impacts_biological_pump_one-dimensional_ocean_model.pdf1.17 MBAdobe PDFView/Download


Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.