Crustacean zooplankton release copious amounts of dissolved organic matter as taurine in the ocean

Original research paper

Bibliographic Details
Authors: Clifford, E.L., Hansell, D.A., Varela, Marta María, Nieto-Cid, Mar, Herndl, G.J., Sintes, Eva
Format: article
Status:Published version
Publication Date:2017
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/316271
Online Access:http://hdl.handle.net/10261/316271
Access Level:Open access
Keyword:Taurine
Medio Marino
Centro Oceanográfico de A Coruña
crustacean zooplankton
Oceanic Tau content
Oceanic Tau turnover
DOM as Taurine in ocean
fish
biogeochemistry
limnology
organic matter
dissolved organic matter
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oai_identifier_str oai:digital.csic.es:10261/316271
network_acronym_str ES
network_name_str España
repository_id_str
spelling Crustacean zooplankton release copious amounts of dissolved organic matter as taurine in the oceanClifford, E.L.Hansell, D.A.Varela, Marta MaríaNieto-Cid, MarHerndl, G.J.Sintes, EvaTaurineMedio MarinoCentro Oceanográfico de A Coruñacrustacean zooplanktonOceanic Tau contentOceanic Tau turnoverDOM as Taurine in oceanfishbiogeochemistrylimnologyorganic matterdissolved organic matterOriginal research paperTaurine (Tau), an amino acid-like compound, is present in almost all marine metazoans including crustacean zooplankton. It plays an important physiological role in these organisms and is released into the ambient water throughout their life cycle. However, limited information is available on the release rates by marine organisms, the concentrations and turnover of Tau in the ocean. We determined dissolved free Tau concentrations throughout the water column and its release by abundant crustacean mesozooplankton at two open ocean sites (Gulf of Alaska and North Atlantic). At both locations, the concentrations of dissolved free Tau were in the low nM range (up to 15.7 nM) in epipelagic waters, declining sharply in the mesopelagic to about 0.2 nM and remaining fairly stable throughout the bathypelagic waters. Pacific amphipod–copepod assemblages exhibited lower dissolved free Tau release rates per unit biomass (0.8 ± 0.4 μmol g−1 C-biomass h−1) than Atlantic copepods (ranging between 1.3 ± 0.4 μmol g−1 C-biomass h−1 and 9.5 ± 2.1 μmol g−1 C-biomass h−1), in agreement with the well-documented inverse relationship between biomass-normalized excretion rates and body size. Our results indicate that crustacean zooplankton might contribute significantly to the dissolved organic matter flux in marine ecosystems via dissolved free Tau release. Based on the release rates and assuming steady state dissolved free Tau concentrations, turnover times of dissolved free Tau range from 0.05 d to 2.3 d in the upper water column and are therefore similar to those of dissolved free amino acids. This rapid turnover indicates that dissolved free Tau is efficiently consumed in oceanic waters, most likely by heterotrophic bacteria.DORCFuentes de Materia orgánica y Diversidad Funcional del Microplacton en las aguas profundas del Atlantico NorteAustrian Science Fund, MINECO, Xunta de Galicia, US National Science FundMODUPLANSI202320232017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/316271reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésCentro Oceanográfico de A Coruñahttps://aslopubs.onlinelibrary.wiley.com/doi/10.1002/lno.10603info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3162712026-05-22T06:33:51Z
dc.title.none.fl_str_mv Crustacean zooplankton release copious amounts of dissolved organic matter as taurine in the ocean
title Crustacean zooplankton release copious amounts of dissolved organic matter as taurine in the ocean
spellingShingle Crustacean zooplankton release copious amounts of dissolved organic matter as taurine in the ocean
Clifford, E.L.
Taurine
Medio Marino
Centro Oceanográfico de A Coruña
crustacean zooplankton
Oceanic Tau content
Oceanic Tau turnover
DOM as Taurine in ocean
fish
biogeochemistry
limnology
organic matter
dissolved organic matter
title_short Crustacean zooplankton release copious amounts of dissolved organic matter as taurine in the ocean
title_full Crustacean zooplankton release copious amounts of dissolved organic matter as taurine in the ocean
title_fullStr Crustacean zooplankton release copious amounts of dissolved organic matter as taurine in the ocean
title_full_unstemmed Crustacean zooplankton release copious amounts of dissolved organic matter as taurine in the ocean
title_sort Crustacean zooplankton release copious amounts of dissolved organic matter as taurine in the ocean
dc.creator.none.fl_str_mv Clifford, E.L.
Hansell, D.A.
Varela, Marta María
Nieto-Cid, Mar
Herndl, G.J.
Sintes, Eva
author Clifford, E.L.
author_facet Clifford, E.L.
Hansell, D.A.
Varela, Marta María
Nieto-Cid, Mar
Herndl, G.J.
Sintes, Eva
author_role author
author2 Hansell, D.A.
Varela, Marta María
Nieto-Cid, Mar
Herndl, G.J.
Sintes, Eva
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Taurine
Medio Marino
Centro Oceanográfico de A Coruña
crustacean zooplankton
Oceanic Tau content
Oceanic Tau turnover
DOM as Taurine in ocean
fish
biogeochemistry
limnology
organic matter
dissolved organic matter
topic Taurine
Medio Marino
Centro Oceanográfico de A Coruña
crustacean zooplankton
Oceanic Tau content
Oceanic Tau turnover
DOM as Taurine in ocean
fish
biogeochemistry
limnology
organic matter
dissolved organic matter
description Original research paper
publishDate 2017
dc.date.none.fl_str_mv 2017
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/316271
url http://hdl.handle.net/10261/316271
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Centro Oceanográfico de A Coruña
https://aslopubs.onlinelibrary.wiley.com/doi/10.1002/lno.10603
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869410385873862656
score 15,812455

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