Peter Croot

Est Professor Earth & Ocean Sciences B.Sc., Ph.D.

Contact Details

Est Professor Earth & Ocean Sciences
Earth & Ocean Science
NUI Galway

E: peter.croot@nuigalway.ie
 
researcher

Biography

Research Interests

Research Interests - Current Projects:

Trace Element Speciation, Redox Behaviour & Distribution: Iron speciation -  Development of analytical methods to determine iron speciation under ambient conditions, this includes flow injection techniques and voltammetric methods. Laboratory measurements of iron speciation and solubility at ambient temperatures and composition. Uptake of iron by phytoplankton, mechanisms and rates.  Al, Mn and Ti - Measurement of Al, Mn and Ti as tracers of dust deposition to the surface ocean for use as reference crustal elements to iron for examining iron biogeochemical cycling. Cd/Zn pCO2 - The biogeochemical cycling of Cd and Zn in surface waters and their relationship to the draw down of  CO2 by phytoplankton. Halogens - Investigations and development of techniques to examine the speciation of inorganic Iodine and Bromide redox species in natural waters with particular application to oxygen minium zones and in the Ozonation of seawater for aquaculture.

 

Photochemistry: Photoreduction of Fe(III) complexes  - Investigating the effects of sunlight on the generation of Fe(II) from the photoreduction of inorganic and organic Fe(III) complexes. Cycling of Hydrogen Peroxide and Superoxide in the ocean - Measurements of the formation and decay of H2O2 and O2- in the Equatorial Atlantic and the Southern Ocean have been made to assess the role of these species in the redox cycling of metals and organic matter.   Photoreactivity of CDOM - the absorbance and fluorescence properties of CDOM are used to examine interactions with light, metals and photoproduced oxidants such as superoxide.

 

Regional Oceanography: Pacific -  current work here focuses on the oxygen minimum zone in the Eastern Tropical South Pacific (ETSP) and the influence of O2 on the cycling of redox sensitive elements in the ocean. Atlantic - recent work here has been on the deposition of Saharan and Patagonian dust to surface waters of the Atlantic and the influence of this dust on trace metal biogeochemical cycles. Southern Ocean -  The biogeochemical cycling of iron in the Southern Ocean and the effects of iron limitation on the cycling of manganese, cobalt, cadmium and zinc.

Research Projects

  Project Start Date End Date
Irish Centre for Research in Applied Geosciences 01-JAN-15 31-DEC-20

Peer Reviewed Journals

  Year Publication
(2013) 'Pathways of Superoxide (O2-) Decay in the Eastern Tropical North Atlantic'
Wuttig, K., Heller, M.I. and Croot, P.L. (2013) 'Pathways of Superoxide (O2-) Decay in the Eastern Tropical North Atlantic'. Environmental Science & Technology, 47 (18):10249-10256 [Details]
(2013) 'Reactivity of Inorganic Mn and Mn Desferrioxamine B with O2, O2-, and H2O2 in Seawater'
Wuttig, K., Heller, M.I. and P.L. Croot (2013) 'Reactivity of Inorganic Mn and Mn Desferrioxamine B with O2, O2-, and H2O2 in Seawater'. Environmental Science & Technology, 47 (18):10257-10265 [Details]
(2013) 'Geochemical evidence of oceanic iron fertilization by the Kasatochi volcanic eruption in 2008 and the potential impacts on Pacific sockeye salmon'
Olgun, N,Duggen, S,Langmann, B,Hort, M,Waythomas, CF,Hoffmann, L,Croot, P (2013) 'Geochemical evidence of oceanic iron fertilization by the Kasatochi volcanic eruption in 2008 and the potential impacts on Pacific sockeye salmon'. Marine Ecology Progress Series, 488 :81-88 [DOI] [Details]
(2013) 'A primer for the Environmental Impact Assessment of mining at seafloor massive sulfide deposits'
Collins, PC,Croot, P,Carlsson, J,Colaco, A,Grehan, A,Hyeong, K,Kennedy, R,Mohn, C,Smith, S,Yamamoto, H,Rowden, A (2013) 'A primer for the Environmental Impact Assessment of mining at seafloor massive sulfide deposits'. Marine Policy, 42 :198-209 [DOI] [Details]
(2013) 'Particulate and dissolved aluminum and titanium in the upper water column of the Atlantic Ocean'
Dammshauser, A,Wagener, T,Garbe-Schonberg, D,Croot, P (2013) 'Particulate and dissolved aluminum and titanium in the upper water column of the Atlantic Ocean'. Deep-Sea Research Part I-Oceanographic Research Papers, 73 :127-139 [DOI] [Details]
(2014) 'Dissolved cadmium in the Southern Ocan: Distribution, speciation, and relation to phosphate'
Baars, O., Abouchami, W., Galer, S.J.G., Boye M and P.L. Croot (2014) 'Dissolved cadmium in the Southern Ocan: Distribution, speciation, and relation to phosphate'. Limnology And Oceanography, 59 (2):385-399 [DOI] [Details]
(2014) 'Facets of diazotrophy in the oxygen minimum zone waters off Peru'
Loescher, Carolin R.,Groskopf, Tobias,Desai, Falguni D.,Gill, Diana,Schunck, Harald,Croot, Peter L.,Schlosser, Christian,Neulinger, Sven C.,Pinnow, Nicole,Lavik, Gaute,Kuypers, Marcel M. M.,LaRoche, Julie,Schmitz, Ruth A. (2014) 'Facets of diazotrophy in the oxygen minimum zone waters off Peru'. ISME J, 8 (1111):2180-2192 [Details]
(2015) 'Interpretation of complexometric titration data: An intercomparison of methods for estimating models of trace metal complexation by natural organic ligands'
Pižeta, I.,Sander, S. G.,Hudson, R. J. M.,Omanović, D.,Baars, O.,Barbeau, K. A.,Buck, K. N.,Bundy, R. M.,Carrasco, G.,Croot, P. L.,Garnier, C.,Gerringa, L. J. A.,Gledhill, M.,Hirose, K.,Kondo, Y.,Laglera, L. M.,Nuester, J.,Rijkenberg, M. J. A.,Takeda, S.,Twining, B. S.,Wells, M. (2015) 'Interpretation of complexometric titration data: An intercomparison of methods for estimating models of trace metal complexation by natural organic ligands'. Marine Chemistry, 173 (00):3-24 [Details]
(2015) 'Total dissolvable and dissolved iron isotopes in the water column of the Peru upwelling regime'
Chever, Fanny,Rouxel, Olivier J.,Croot, Peter L.,Ponzevera, Emmanuel,Wuttig, Kathrin,Auro, Maureen (2015) 'Total dissolvable and dissolved iron isotopes in the water column of the Peru upwelling regime'. Geochimica et Cosmochimica Acta, 162 (00):66-82 [Details]
(2015) 'Dissolved cobalt speciation and reactivity in the eastern tropical North Atlantic'
Baars, Oliver,Croot, Peter L. (2015) 'Dissolved cobalt speciation and reactivity in the eastern tropical North Atlantic'. Marine Chemistry, 173 (00):310-319 [Details]
(2015) 'Copper speciation and distribution in the Atlantic sector of the Southern Ocean'
Heller, Maija I.,Croot, Peter L. (2015) 'Copper speciation and distribution in the Atlantic sector of the Southern Ocean'. Marine Chemistry, 173 (00):253-268 [Details]
(2012) 'Ocean fertilization for geoengineering: A review of effectiveness, environmental impacts and emerging governance'
Williamson, Phillip,Wallace, Douglas W. R.,Law, Cliff S.,Boyd, Philip W.,Collos, Yves,Croot, Peter,Denman, Ken,Riebesell, Ulf,Takeda, Shigenobu,Vivian, Chris (2012) 'Ocean fertilization for geoengineering: A review of effectiveness, environmental impacts and emerging governance'. Process Safety and Environmental Protection, 90 (66):475-488 [Details]
(2012) 'Low colloidal associations of aluminium and titanium in surface waters of the tropical Atlantic'
Dammshäuser, Anna,Croot, Peter L. (2012) 'Low colloidal associations of aluminium and titanium in surface waters of the tropical Atlantic'. Geochimica et Cosmochimica Acta, 96 (00):304-318 [Details]
(2012) 'Diazotrophic bacteria respond to Saharan dust additions'
Langlois, R.J.,Mills, M.M.,Ridame, C.,Croot, P.,LaRoche, J. (2012) 'Diazotrophic bacteria respond to Saharan dust additions'. Marine Ecology Progress Series, 470 :1-14 [Details]
(2013) 'Possible impacts of volcanic ash emissions of Mount Etna on the primary productivity in the oligotrophic Mediterranean Sea: Results from nutrient-release experiments in seawater'
Olgun, Nazlı,Duggen, Svend,Andronico, Daniele,Kutterolf, Steffen,Croot, Peter Leslie,Giammanco, Salvatore,Censi, Paolo,Randazzo, Loredana (2013) 'Possible impacts of volcanic ash emissions of Mount Etna on the primary productivity in the oligotrophic Mediterranean Sea: Results from nutrient-release experiments in seawater'. Marine Chemistry, 152 (00):32-42 [Details]
(2013) 'Vivaspin ultrafiltration: A new approach for high resolution measurements of colloidal and soluble iron species'
Christian Schlosser,Peter Streu,Peter L. Croot (2013) 'Vivaspin ultrafiltration: A new approach for high resolution measurements of colloidal and soluble iron species'. Limnology and Oceanography Methods, 11 :187-201 [Details]
(2013) 'Basin scale survey of marine humic fluorescence in the Atlantic: relationship to iron solubility'
Heller, Maija I.,Gaiero, D.,Croot, Peter.L. (2013) 'Basin scale survey of marine humic fluorescence in the Atlantic: relationship to iron solubility'. Global Biogeochemical Cycles, 27 (1):88-100 [Details]
(2013) 'Impacts of dust deposition on dissolved trace metal concentrations (Mn, Al and Fe) during a mesocosm experiment'
Wuttig, K., T. Wagener, M. Bressac, A. Dammshauser, P. Streu, C. Guieu, P.Croot (2013) 'Impacts of dust deposition on dissolved trace metal concentrations (Mn, Al and Fe) during a mesocosm experiment'. Biogeosciences, 10 :2583-2600 [DOI] [Details]
(1996) 'Role of protozoan grazing in relieving iron limitation of phytoplankton'
K Barbeau,J W Moffett,D A Caron,P L Croot,D L Erdner (1996) 'Role of protozoan grazing in relieving iron limitation of phytoplankton'. Nature, 380 :61-64 [Details]
(1997) 'Cu speciation and cyanobacterial distribution in harbors subject to anthroprogenic Cu inputs'
J W Moffett,L E Brand,P L Croot,K A Barbeau (1997) 'Cu speciation and cyanobacterial distribution in harbors subject to anthroprogenic Cu inputs'. Limnology and Oceanography, 42 :789-799 [Details]
(1997) 'Biological roles of trace metals in natural waters'
Hunter, K A,Kim, J P,Croot , P L (1997) 'Biological roles of trace metals in natural waters'. Environmental Monitoring and Assessment, 44 :103-147 [Details]
(1998) 'Research cruise of the Scandinavian South African Antarctic expedition, December 1997 to February 1998'
Froneman, P. W.,Pakhomov, E. A.,Turner, D.,Abrahamson, K.,Karlsson, B.,Godhe, A.,Bertilsson, S.,Graneli, W.,Carlsson, P.,Wangberg, S.,Wulff, A.,Croot, P.,Andersson, K.,Balarin, M.,Wedborg, M.,Persson, T.,Rasmus, K.,Ozturk, M.,David, R. (1998) 'Research cruise of the Scandinavian South African Antarctic expedition, December 1997 to February 1998'. South African Journal of Science, 94 (1111):517-519 [Details]
(1998) 'Trace metal distributions across the continental shelf near Otago Peninsula, New Zealand'
P L Croot,K A Hunter (1998) 'Trace metal distributions across the continental shelf near Otago Peninsula, New Zealand'. Marine Chemistry, 62 :185-201 [Details]
(1999) 'Uptake of 64Cu-Oxine by Marine Phytoplankton'
P L Croot,B Karlson,van Elteren, J T,J J Kroon (1999) 'Uptake of 64Cu-Oxine by Marine Phytoplankton'. Environmental Science and Technology, 33 (2020):3615-3621 [Details]
(1999) 'Polarographic determination of half-wave potentials for copper-organic complexes in seawater'
P L Croot,J W Moffett,G W Luther (1999) 'Polarographic determination of half-wave potentials for copper-organic complexes in seawater'. Marine Chemistry, 67 (3-43-4):219-232 [Details]
(2000) 'Determination of iron speciation by cathodic stripping voltammetry in seawater using the competing ligand 2-(2-Thiazolylazo)-p-cresol (TAC)'
P L Croot,M Johansson (2000) 'Determination of iron speciation by cathodic stripping voltammetry in seawater using the competing ligand 2-(2-Thiazolylazo)-p-cresol (TAC)'. Electroanalysis, 12(8) :565-576 [Details]
(2000) 'Perception of Environmental Signals by a Marine Diatom'
A Falciatore,Riberia d'Alcala, M,P Croot,C Bowler (2000) 'Perception of Environmental Signals by a Marine Diatom'. Science, [Details]
(2000) 'Labile forms of iron in coastal seawater: Otago Harbour, New Zealand'
P L Croot,K A Hunter (2000) 'Labile forms of iron in coastal seawater: Otago Harbour, New Zealand'. Marine Freshwater Research, 51 :193-203 [Details]
(2000) 'Production of extracellular Cu complexing ligands by eucaryotic phytoplankton in response to Cu stress'
P L Croot,J W Moffett,L Brand (2000) 'Production of extracellular Cu complexing ligands by eucaryotic phytoplankton in response to Cu stress'. Limnology and Oceanography, 45 :619-627 [Details]
(2000) 'Determination of Fe(II) and total iron in natural waters with 3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine (PDT)'
P L Croot,K A Hunter (2000) 'Determination of Fe(II) and total iron in natural waters with 3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine (PDT)'. Analytica Chimica Acta, 406 :289-302 [Details]
(2000) 'Mesoscale iron fertilisation elevates phytoplankton stocks in the polar Southern Ocean'
P W Boyd,A Watson,C S Law,E Abraham,T Trull,R Murdoch,D C E Bakker,A R Bowie,K.O. Buesseler,H. Chang,M Charette,P L Croot,K Downing,R Frew,M Gall,M Hadfield,J Hall,M Harvey,G Jameson,J LaRoche,M Liddicoat,R Ling,M Maldonado,R M McKay,S Nodder,S Pickmere,R Pridmore,S Rintoul,K Safi,P Sutton,R Strzepek,K Tannenberger,S Turner,A Waite,J Zeldis (2000) 'Mesoscale iron fertilisation elevates phytoplankton stocks in the polar Southern Ocean'. Nature, 407 :695-702 [Details]
(2001) 'Retention of dissolved iron and FeII in an iron induced Southern Ocean phytoplankton bloom'
P L Croot,A R Bowie,R D Frew,M Maldonado,J A Hall,K A Safi,La Roche, J,P W Boyd,C S Law (2001) 'Retention of dissolved iron and FeII in an iron induced Southern Ocean phytoplankton bloom'. Geophysical Research Letters, 28 :3425-3428 [Details]
(2001) 'Organic complexation of iron in the Southern Ocean'
M Boye,van den Berg, C M G,de Jong, J T M,H Leach,P L Croot,de Baar, H J W (2001) 'Organic complexation of iron in the Southern Ocean'. Deep Sea Research, 48 :1477-1497 [Details]
(2001) 'The fate of added iron during a mesoscale fertilisation experiment in the Southern Ocean'
A R Bowie,M T Maldonado,R D Frew,P L Croot,C S Law,E P Achterberg,R F C Mantoura,P J Worsfold,C S Law,P W Boyd (2001) 'The fate of added iron during a mesoscale fertilisation experiment in the Southern Ocean'. Deep-Sea Research II, 48 :2703-2743 [Details]
(2001) 'Growth rates of large and small Southern Ocean diatoms in relation to availability of iron in natural seawater'
K R Timmermans,L J A Gerringa,de Baar, H J W,van der Wagt, B,M J W Veldhuis,de Jong, J T M,P L Croot,M Boye (2001) 'Growth rates of large and small Southern Ocean diatoms in relation to availability of iron in natural seawater'. Limnology and Oceanography, 46(2) :260-266 [Details]
(2001) 'Iron uptake and physioloigcal response of phytoplankton during a mesoscale Southern Ocean iron enrichment'
M T Maldonado,P W Boyd,J La Roche,R Strzepek,A Waite,A R Bowie,P L Croot,R D Frew,N M Price (2001) 'Iron uptake and physioloigcal response of phytoplankton during a mesoscale Southern Ocean iron enrichment'. 46 :1802-1808 [Details]
(2001) 'Macronutrient and trace-metal geochemistry of an in situ iron-induced Southern Ocean bloom'
R D Frew,A R Bowie,P L Croot,S Pickemere (2001) 'Macronutrient and trace-metal geochemistry of an in situ iron-induced Southern Ocean bloom'. Deep-Sea Research II, 48 :2467-2481 [Details]
(2002) 'The Automated Marine pH sensor (AMpS); a high precision continuous spectrophotometric method for seawater pH measurements'
R Bellerby,A Olsen,T Johannessen,P Croot (2002) 'The Automated Marine pH sensor (AMpS); a high precision continuous spectrophotometric method for seawater pH measurements'. Talanta, 56 :61-69 [Details]
(2002) 'Continuous shipboard determination of Fe(II) in Polar waters using flow injection analysis with chemiluminescence detection'
P L Croot,P Laan (2002) 'Continuous shipboard determination of Fe(II) in Polar waters using flow injection analysis with chemiluminescence detection'. Analytica Chimica Acta, 466 :261-273 [Details]
(2002) 'Trace Metal/Phytoplankton Interactions in the Skagerrak'
P L Croot,B Karlson,A Wulff,F Linares,K Andersson (2002) 'Trace Metal/Phytoplankton Interactions in the Skagerrak'. Journal of Marine Systems, 35 :39-60 [Details]
(2003) 'Seasonal cycle of copper speciation in Gullmar Fjord, Sweden'
P L Croot (2003) 'Seasonal cycle of copper speciation in Gullmar Fjord, Sweden'. Limnology and Oceanography, 48 :764-776 [Details]
(2003) 'Shipboard intercomparison of dissolved iron in surface waters along a north-south transect of the tropical Atlantic Ocean'
A R Bowie,E P Achterberg,S Blain,M Boye,P L Croot,P Laan,G Sarthou,de Baar, H J W,P J Worsfold (2003) 'Shipboard intercomparison of dissolved iron in surface waters along a north-south transect of the tropical Atlantic Ocean'. Marine Chemistry, 84 :19-34 [Details]
(2003) 'Uptake and efflux of 64Cu by the marine cyanobacterium Synechococcus (WH7803)'
P L Croot,Karlson, B,van Elteren, J.T.,Kroon, J.J. (2003) 'Uptake and efflux of 64Cu by the marine cyanobacterium Synechococcus (WH7803)'. Limnology and Oceanography, 48 :179-188 [Details]
(2003) 'Atmospheric iron deposition and sea-surface dissolved iron concentrations in the East Atlantic'
G. Sarthou,A.R. Baker,S. Blain,E.P. Achterberg,M. Boye,A.R. Bowie,P.L. Croot,P. Laan,H.J.W. de Baar,T.D. Jickells. (2003) 'Atmospheric iron deposition and sea-surface dissolved iron concentrations in the East Atlantic'. Deep-Sea Research, 50 :1339-1352 [Details]
(2004) 'Short residence time for iron in surface seawater impacted by atmospheric dry deposition from Saharan dust events'
P L Croot,P Streu,A R Baker (2004) 'Short residence time for iron in surface seawater impacted by atmospheric dry deposition from Saharan dust events'. Geophysical Research Letters, 31 [Details]
(2004) 'Influence of the ITCZ on H2O2 in near surface waters in the equatorial Atlantic Ocean'
P L Croot,P Streu,I Peeken,K Lochte,A R Baker (2004) 'Influence of the ITCZ on H2O2 in near surface waters in the equatorial Atlantic Ocean'. Geophysical Research Letters, 31 [Details]
(2004) 'Iron enrichment and photoreduction of iron under PAR and UV in the presence of hydrocarboxylic acid: Implications for phytoplankton growth in the Southern Ocean'
M Ã-ztürk,P Croot,S Bertilsson,K Abrahamsson ,B Karlson,R. Davis,M Chierici,E Sakshaug (2004) 'Iron enrichment and photoreduction of iron under PAR and UV in the presence of hydrocarboxylic acid: Implications for phytoplankton growth in the Southern Ocean'. Deep-Sea Research II, 51(22-24) :2841-2856 [Details]
(2004) 'Patterns of Nitrogen Fixation along 10°N in the Tropical Atlantic'
M Voss,P Croot,K Lochte,M Mills,I Peeken (2004) 'Patterns of Nitrogen Fixation along 10°N in the Tropical Atlantic'. Geophysical Research Letters, 31 [Details]
(2004) 'The Distribution and Speciation of Iron along 6° E, in the Southern Ocean'
P L Croot,K Andersson,M Ã-ztürk,D Turner (2004) 'The Distribution and Speciation of Iron along 6° E, in the Southern Ocean'. Deep-Sea Research II, 51 (22-2422-24):2857-2879 [Details]
(2005) 'Major deviations of iron complexation during 22 days of a mesoscale iron enrichment in the open Southern Ocean'
Boye, Marie,Nishioka, Jun,Croot, Peter L.,Laan, Patrick,Timmermans, Klaas R.,de Baar, Hein J. W. (2005) 'Major deviations of iron complexation during 22 days of a mesoscale iron enrichment in the open Southern Ocean'. Marine Chemistry, 96 (3-43-4):257-271 [Details]
(2005) 'Changes in the concentration of iron in different size fractions during an iron enrichment experiment in the open Southern Ocean'
J Nishioka,S Takeda,de Baar, H J W,P Laan,P Croot,M Boye,K R Timmermans (2005) 'Changes in the concentration of iron in different size fractions during an iron enrichment experiment in the open Southern Ocean'. Marine Chemistry, 95 :51-63 [Details]
(2005) 'Synthesis of 8 Iron Fertilization Experiments: From the Iron Age to the Age of Enlightenment'
de Baar, H J W,P W Boyd,K H Coale,M R Landry,A Tsuda,P Assmy,D C E Bakker,Y Bozec,R T Barber,M A Brzezinski,K O Buesseler,M Boye,P L Croot,F Gervais,M Y Gorbunov,P J Harrison,W T Hiscock,P Laan,C Lancelot,C S Law,M Levasseur,A Marchetti,F J Millero,J Nishioka,Y Nojiri,van Oijen, T,U Riebesell,M J A Rijkenberg,H Saito,S Takeda,K R Timmermans,M J W Veldhuis,A M Waite,C-S Wong (2005) 'Synthesis of 8 Iron Fertilization Experiments: From the Iron Age to the Age of Enlightenment'. Journal of Geophysical Research, 110 [Details]
(2005) 'Spatial and Temporal distribution of Fe(II) and H2O2 during EISENEX, an open ocean mesoscale iron enrichment'
P L Croot,P Laan,J Nishioka,V Strass,B Cisewski,M Boye,K Timmermans,R Bellerby,L Goldson,de Baar, H J W (2005) 'Spatial and Temporal distribution of Fe(II) and H2O2 during EISENEX, an open ocean mesoscale iron enrichment'. Marine Chemistry, 95 :65-88 [Details]
(2005) 'Organic complexation of cobalt across the Antarctic Polar Front in the Southern Ocean'
M J Ellwood,Van den Berg, C M G,M Boye,M Veldhuis,de Jong, J T M,De Baar, H J W,P L Croot (2005) 'Organic complexation of cobalt across the Antarctic Polar Front in the Southern Ocean'. Marine And Freshwater Research, 56 (88):1069-1075 [Details]
(2005) 'Picophytoplankton; a comparative study of their biochemical composition and photosynthetic properties'
Veldhuis, Marcel J. W.,Timmermans, Klaas R.,Croot, Peter,van der Wagt, Bas (2005) 'Picophytoplankton; a comparative study of their biochemical composition and photosynthetic properties'. 53 (1-21-2) [Details]
(2005) 'FeCycle: Attempting an iron biogeochemical budget from a mesoscale SF6 tracer experiment in unperturbed low iron waters'
Boyd, P. W.,Law, C S,Hutchins, D A,Abraham, E R,Croot, P,Ellwood, M J,Frew, R D,Hall J,Handy S,Hare, C E,Higgins, J,Hill, P,Hunter, K A,Leblanc, K,Maldonado, M,McKay, R M L,Oliver, M,Pickmere, S,Safi, K,Sanudo-Wilhelmy, S,Strzepek, R F,Tovar-Sanchez, A,Wilhelm, S W (2005) 'FeCycle: Attempting an iron biogeochemical budget from a mesoscale SF6 tracer experiment in unperturbed low iron waters'. Global Biogeochemical Cycles, 19 [Details]
(2006) 'A community-wide intercomparison exercise for the determination of dissolved iron in seawater'
Bowie, Andrew R.,Achterberg, Eric P.,Croot, Peter L.,de Baar, Hein J. W.,Laan, Patrick,Moffett, James W.,Ussher, Simon,Worsfold, Paul J. (2006) 'A community-wide intercomparison exercise for the determination of dissolved iron in seawater'. Marine Chemistry, 98 (11):81-99 [Details]
(2007) 'The effects of physical forcing on iron chemistry and speciation during the FeCycle experiment in the South West Pacific'
Croot, P L,Frew, R D,Hunter, K A,Sander, S,Ellwood, M J,Abraham, E R,Law, C S,Smith, M J,Boyd, P W (2007) 'The effects of physical forcing on iron chemistry and speciation during the FeCycle experiment in the South West Pacific'. Journal of Geophysical Research - Oceans, 112 [Details]
(2007) 'Subduction zone volcanic ash can fertilize the surface ocean and stimulate phytoplankton growth: Evidence from biogeochemical experiments and satellite data'
S Duggen,P Croot,U Schacht,L Hoffmann (2007) 'Subduction zone volcanic ash can fertilize the surface ocean and stimulate phytoplankton growth: Evidence from biogeochemical experiments and satellite data'. Geophysical Research Letters, 34 [Details]
(2007) 'Influence of temperature and salinity on the trace element incorporation into statoliths of the common cuttlefish (Sepia officinalis)'
Zumholz, K.,Hansteen, T. H.,Piatkowski, U.,Croot, P. L. (2007) 'Influence of temperature and salinity on the trace element incorporation into statoliths of the common cuttlefish (Sepia officinalis)'. Marine Biology, 151 (44):1321-1330 [Details]
(2007) 'Surface-active substances in the upper water column during a Southern Ocean Iron Fertilization Experiment (EIFEX)'
P L Croot,U Passow,P Assmy,S Jansen,V H Strass (2007) 'Surface-active substances in the upper water column during a Southern Ocean Iron Fertilization Experiment (EIFEX)'. Geophysical Research Letters, 34 [Details]
(2007) 'Luminescent whole-cell cyanobacterial bioreporter for measuring Fe availability in diverse marine environments'
Boyanapalli, R.,Bullerjahn, G. S.,Pohl, C.,Croot, P. L.,Boyd, P. W.,McKay, R. M. L. (2007) 'Luminescent whole-cell cyanobacterial bioreporter for measuring Fe availability in diverse marine environments'. Applied And Environmental Microbiology, 73 (33):1019-1024 [Details]
(2008) 'Regeneration of Fe(II) during EIFeX and SOFeX'
Croot, P. L.,Bluhm, K.,Schlosser, C.,Streu, P.,Breitbarth, E.,Frew, R.,Van Ardelan, M. (2008) 'Regeneration of Fe(II) during EIFeX and SOFeX'. Geophysical Research Letters, 35 (1919) [Details]
(2008) 'Application of cross-flow filtration for determining the solubility of iron species in open ocean seawater'
C Schlosser,P L Croot (2008) 'Application of cross-flow filtration for determining the solubility of iron species in open ocean seawater'. Limnology and Oceanography: Methods, 6 :630-642 [Details]
(2008) 'Identifying the processes controlling the Distribution of H2O2 in surface waters along a meridional transect in the Eastern Atlantic'
Steigenberger, S.,P.L. Croot (2008) 'Identifying the processes controlling the Distribution of H2O2 in surface waters along a meridional transect in the Eastern Atlantic'. Geophysical Research Letters, 35 [Details]
(2009) 'Controls on seawater Fe(III) solubility in the Mauritanian upwelling zone'
C Schlosser,P Croot (2009) 'Controls on seawater Fe(III) solubility in the Mauritanian upwelling zone'. Geophys. Res. Lett, 36 [Details]
(2009) 'Influence of river discharge in the tropical and subtropical North Atlantic Ocean'
Cotrim da Cunha, Leticia ,P Croot,Julie LaRoche (2009) 'Influence of river discharge in the tropical and subtropical North Atlantic Ocean'. Limnology and Oceanography, 54 (22):644-648 [Details]
(2009) 'Maritime Aerosol Network (MAN) as a component of AERONET'
A. Smirnov,B.N. Holben,I. Slutsker,D. Giles,C.R. McClain,T.F. Eck,S.M. Sakerin,A. Macke,P. Croot,G. Zibordi,P. Quinn,J. Sciare,S. Kinne,M. Harvey,T. Smith,S. Piketh,T. Zielinski,A. Proshutinsky,J. Goes,D.A. Siegel,P. Larouche,V.F. Radionov,P. Goloub,K. Krishnamoorthy,R. Mataresse,E.J. Robertson,F. Jourdin (2009) 'Maritime Aerosol Network (MAN) as a component of AERONET'. Journal of Geophysical Research, 114 [Details]
(2010) 'Oceanic distribution of inorganic germanium relative to silicon: Germanium discrimination by diatoms'
Sutton, Jill,Ellwood, Michael J.,Maher, William A.,Croot, Peter L. (2010) 'Oceanic distribution of inorganic germanium relative to silicon: Germanium discrimination by diatoms'. Global Biogeochem. Cycles, 24 (22) [Details]
(2010) 'Transformation of iodate to iodide in marine phytoplankton driven by cell senescence'
Bluhm, K,Croot, P,Wuttig, K,Lochte, K (2010) 'Transformation of iodate to iodide in marine phytoplankton driven by cell senescence'. Aquatic Biology, 11 (11):1-15 [Details]
(2010) 'Superoxide Decay Kinetics in the Southern Ocean'
Heller, Maija I.,Croot, Peter L. (2010) 'Superoxide Decay Kinetics in the Southern Ocean'. Environmental Science & Technology, 44 (11) [Details]
(2010) 'Application of a Superoxide (O2-) thermal source (SOTS-1) for the determination and calibration of O2- fluxes in seawater'
M. I. Heller,P. L. Croot (2010) 'Application of a Superoxide (O2-) thermal source (SOTS-1) for the determination and calibration of O2- fluxes in seawater'. Analytica Chimica Acta, 667 :1-13 [Details]
(2010) 'Kinetics of superoxide reactions with dissolved organic matter in tropical Atlantic surface waters near Cape Verde (TENATSO)'
Heller, M. I.,Croot, P. L. (2010) 'Kinetics of superoxide reactions with dissolved organic matter in tropical Atlantic surface waters near Cape Verde (TENATSO)'. J. Geophys. Res, 115 (C12C12) [Details]
(2010) 'Significant portion of dissolved organic Fe complexes in fact is Fe colloids'
Boye, Marie,Nishioka, Jun,Croot, Peter,Laan, Patrick,Timmermans, Klaas R.,Strass, Volker H.,Takeda, Shigenobu,de Baar, Hein J. W. (2010) 'Significant portion of dissolved organic Fe complexes in fact is Fe colloids'. Marine Chemistry, 122 (1-41-4):20-27 [Details]
(2010) 'Iron biogeochemistry across marine systems – progress from the past decade'
Breitbarth, E.,Achterberg, E. P.,Ardelan, M. V.,Baker, A. R.,Bucciarelli, E.,Chever, F.,Croot, P. L.,Duggen, S.,Gledhill, M.,Hassellöv, M.,Hassler, C.,Hoffmann, L. J.,Hunter, K. A.,Hutchins, D. A.,Ingri, J.,Jickells, T.,Lohan, M. C.,Nielsdóttir, M. C.,Sarthou, G.,Schoemann, V.,Trapp, J. M.,Turner, D. R.,Ye, Y. (2010) 'Iron biogeochemistry across marine systems – progress from the past decade'. Biogeosciences, 7 (33):1075-1097 [Details]
(2010) 'Ocean acidification affects iron speciation during a coastal seawater mesocosm experiment'
Breitbarth, E.,Bellerby, R. J.,Neill, C. C.,Ardelan, M. V.,Meyerhöfer, M.,Zöllner, E.,Croot, P. L.,Riebesell, U. (2010) 'Ocean acidification affects iron speciation during a coastal seawater mesocosm experiment'. Biogeosciences, 7 (33):1065-1073 [Details]
(2010) 'The role of airborne volcanic ash for the surface ocean biogeochemical iron cycle: a review'
Duggen, S,Olgun, N,Croot, P,Hoffmann, L,Dietze, H,Delmelle, P,Teschner, C (2010) 'The role of airborne volcanic ash for the surface ocean biogeochemical iron cycle: a review'. Biogeosciences, 7 :827-844 [Details]
(2010) 'Atmospheric and marine controls on aerosol iron solubility in seawater'
Baker, A. R.,Croot, P.L. (2010) 'Atmospheric and marine controls on aerosol iron solubility in seawater'. Marine Chemistry, 120 :4-13 [Details]
(2011) 'Maritime aerosol network as a component of AERONET – first results and comparison with global aerosol models and satellite retrievals'
Smirnov, A.,Holben, B. N.,Giles, D. M.,Slutsker, I.,O'Neill, N. T.,Eck, T. F.,Macke, A.,Croot, P.,Courcoux, Y.,Sakerin, S. M.,Smyth, T. J.,Zielinski, T.,Zibordi, G.,Goes, J. I.,Harvey, M. J.,Quinn, P. K.,Nelson, N. B.,Radionov, V. F.,Duarte, C. M.,Losno, R.,Sciare, J.,Voss, K. J.,Kinne, S.,Nalli, N. R.,Joseph, E.,Krishna Moorthy, K.,Covert, D. S.,Gulev, S. K.,Milinevsky, G.,Larouche, P.,Belanger, S.,Horne, E.,Chin, M.,Remer, L. A.,Kahn, R. A.,Reid, J. S.,Schulz, M.,Heald, C. L.,Zhang, J.,Lapina, K.,Kleidman, R. G.,Griesfeller, J.,Gaitley, B. J.,Tan, Q.,Diehl, T. L. (2011) 'Maritime aerosol network as a component of AERONET – first results and comparison with global aerosol models and satellite retrievals'. Atmos. Meas. Tech, 4 (33):583-597 [Details]
(2011) 'Effects of iron surface adsorption and sample handling on iron solubility measurements'
Schlosser, C.,De La Rocha, C. L.,Croot, P. L. (2011) 'Effects of iron surface adsorption and sample handling on iron solubility measurements'. Marine Chemistry, 127 (1-41-4):48-55 [Details]
(2011) 'Synoptic transects on the distribution of trace elements (Hg, Pb, Cd, Cu, Ni, Zn, Co, Mn, Fe, and Al) in surface waters of the Northern- and Southern East Atlantic'
Pohl, C.,Croot, P. L.,Hennings, U.,Daberkow, T.,Budeus, G.,Loeff, M. Rutgers v d (2011) 'Synoptic transects on the distribution of trace elements (Hg, Pb, Cd, Cu, Ni, Zn, Co, Mn, Fe, and Al) in surface waters of the Northern- and Southern East Atlantic'. Journal of Marine Systems, 84 (1-21-2):28-41 [Details]
(2011) 'Surface ocean iron fertilization: The role of airborne volcanic ash from subduction zone and hot spot volcanoes and related iron fluxes into the Pacific Ocean'
Olgun, Nazl,Duggen, Svend,Croot, Peter Leslie,Delmelle, Pierre,Dietze, Heiner,Schacht, Ulrike,Óskarsson, Niels,Siebe, Claus,Auer, Andreas,Garbe-Schönberg, Dieter (2011) 'Surface ocean iron fertilization: The role of airborne volcanic ash from subduction zone and hot spot volcanoes and related iron fluxes into the Pacific Ocean'. Global Biogeochem. Cycles, 25 (44) [Details]
(2011) 'Superoxide decay as a probe for speciation changes during dust dissolution in Tropical Atlantic surface waters near Cape Verde'
Heller, M. I.,Croot, P. L. (2011) 'Superoxide decay as a probe for speciation changes during dust dissolution in Tropical Atlantic surface waters near Cape Verde'. Marine Chemistry, 126 (1-41-4):37-55 [Details]
(2011) 'Reply to comment on Application of a superoxide (O2-) thermal sources (SOTS-1) for the determination and calibration of O2- fluxes in seawater'
Heller, Maija I.,Croot, Peter L. (2011) 'Reply to comment on Application of a superoxide (O2-) thermal sources (SOTS-1) for the determination and calibration of O2- fluxes in seawater'. Analytica Chimica Acta, In Press, Corrected Proof [Details]
(2011) 'Surface water dissolved aluminum and titanium: Tracers for specific time scales of dust deposition to the Atlantic?'
Dammshäuser, Anna,Wagener, Thibaut,Croot, Peter L. (2011) 'Surface water dissolved aluminum and titanium: Tracers for specific time scales of dust deposition to the Atlantic?'. Geophys. Res. Lett, 38 (2424) [Details]
(2011) 'The distribution of dissolved zinc in the Atlantic sector of the Southern Ocean'
Croot, Peter L.,Baars, Oliver,Streu, Peter (2011) 'The distribution of dissolved zinc in the Atlantic sector of the Southern Ocean'. Deep Sea Research Part II: Topical Studies in Oceanography, 58 (25-2625-26):2707-2719 [Details]
(2011) 'Rapid Determination of Picomolar Titanium in Seawater with Catalytic Cathodic Stripping Voltammetry'
Croot, Peter L. (2011) 'Rapid Determination of Picomolar Titanium in Seawater with Catalytic Cathodic Stripping Voltammetry'. Analytical Chemistry, 83 (1616):6395-6400 [Details]
(2011) 'Distribution of iodide and iodate in the Atlantic sector of the southern ocean during austral summer'
Bluhm, K.,Croot, P. L.,Huhn, O.,Rohardt, G.,Lochte, K. (2011) 'Distribution of iodide and iodate in the Atlantic sector of the southern ocean during austral summer'. Deep Sea Research Part II: Topical Studies in Oceanography, 58 (25-2625-26):2733-2748 [Details]
(2011) 'Variation in particulate C and N isotope composition following iron fertilization in two successive phytoplankton communities in the Southern Ocean'
Berg, Gry Mine,Mills, Matthew M.,Long, Matt C.,Bellerby, Richard,Strass, Volker,Savoye, Nicolas,Röttgers, Rudiger,Croot, Peter L.,Webb, Adrian,Arrigo, Kevin R. (2011) 'Variation in particulate C and N isotope composition following iron fertilization in two successive phytoplankton communities in the Southern Ocean'. Global Biogeochem. Cycles, 25 (33) [Details]
(2011) 'The speciation of dissolved zinc in the Atlantic sector of the Southern Ocean'
Baars, Oliver,Croot, Peter L. (2011) 'The speciation of dissolved zinc in the Atlantic sector of the Southern Ocean'. Deep Sea Research Part II: Topical Studies in Oceanography, 58 (25-2625-26):2720-2732 [Details]
(2011) 'Comparison of Alternate Reactants for pM Level Cobalt Analysis in Seawater by the Use of Catalytic Voltammetry'
Baars, Oliver,Croot, Peter L. (2011) 'Comparison of Alternate Reactants for pM Level Cobalt Analysis in Seawater by the Use of Catalytic Voltammetry'. Electroanalysis, 23 (77):1663-1670 [Details]
(2012) 'The importance of kinetics and redox in the biogeochemical cycling of iron in the surface ocean'
Croot,Peter L.,Heller,Maija I. (2012) 'The importance of kinetics and redox in the biogeochemical cycling of iron in the surface ocean'. Frontiers in Microbiology, 3 [Details]
(2012) 'Solubility of iron in the Southern Ocean'
Schlosser, Christian ,De La Rocha, Christina L,Streu, P.,Croot, P.L. (2012) 'Solubility of iron in the Southern Ocean'. Limnology And Oceanography, 57 (33):684-697 [Details]
(2012) 'Natural iron fertilization of the Atlantic sector of the Southern Ocean by continental shelf sources of the Antarctic Peninsula'
de Jong, Jeroen,Schoemann, Véronique,Lannuzel, Delphine,Croot, Peter,de Baar, Hein,Tison, Jean-Louis (2012) 'Natural iron fertilization of the Atlantic sector of the Southern Ocean by continental shelf sources of the Antarctic Peninsula'. J. Geophys. Res, 117 (G1G1) [Details]
(2012) 'Effect of wind speed on aerosol optical depth over remote oceans, based on data from the Maritime Aerosol Network'
Smirnov, A.,Sayer, A. M.,Holben, B. N.,Hsu, N. C.,Sakerin, S. M.,Macke, A.,Nelson, N. B.,Courcoux, Y.,Smyth, T. J.,Croot, P.,Quinn, P. K.,Sciare, J.,Gulev, S. K.,Piketh, S.,Losno, R.,Kinne, S.,Radionov, V. F. (2012) 'Effect of wind speed on aerosol optical depth over remote oceans, based on data from the Maritime Aerosol Network'. Atmospheric Measurement Techniques, 5 (22):377-388 [Details]
(2012) 'Iron organic speciation determination in rainwater using cathodic stripping voltammetry'
Cheize, Marie,Sarthou, Géraldine,Croot, Peter L.,Bucciarelli, Eva,Baudoux, Anne-Claire,Baker, Alex R. (2012) 'Iron organic speciation determination in rainwater using cathodic stripping voltammetry'. Analytica Chimica Acta, 736 (00):45-54 [Details]
(2012) 'Deep carbon export from a Southern Ocean iron-fertilized diatom bloom'
Smetacek, V,Klaas, C,Strass, VH,Assmy, P,Montresor, M,Cisewski, B,Savoye, N,Webb, A,d'Ovidio, F,Arrieta, JM,Bathmann, U,Bellerby, R,Berg, GM,Croot, P,Gonzalez, S,Henjes, J,Herndl, GJ,Hoffmann, LJ,Leach, H,Losch, M,Mills, MM,Neill, C,Peeken, I,Rottgers, R,Sachs, O,Sauter, E,Schmidt, MM,Schwarz, J,Terbruggen, A,Wolf-Gladrow, D (2012) 'Deep carbon export from a Southern Ocean iron-fertilized diatom bloom'. Nature, 487 :313-319 [DOI] [Details]

Book Chapters

  Year Publication
(1997) 'Trace metal phytoplankton interactions in marine systems. Perspectives in Environmental Chemistry'
Hunter, K A,Kim, J P,Croot, P L,D Macalady (1997) 'Trace metal phytoplankton interactions in marine systems. Perspectives in Environmental Chemistry' In: Oxford University PressOxford University Press. [Details]
(2011) 'Utilizing radio-isotopes for trace metal speciation measurements in seawater. Radioisotopes/ Book 1'
Croot, P.L.,Helller, M.I.,Schlosser, C.,Wuttig, K.,Singh, Nirmal (2011) 'Utilizing radio-isotopes for trace metal speciation measurements in seawater. Radioisotopes/ Book 1' In: In-TechIn-Tech. [Details]

Reviews

  Year Publication
(2012) Ocean fertilization for geoengineering: A review of effectiveness, environmental impacts and emerging governance.
Williamson, P,Wallace, DWR,Law, CS,Boyd, PW,Collos, Y,Croot, P,Denman, K,Riebesell, U,Takeda, S,Vivian, C (2012) Ocean fertilization for geoengineering: A review of effectiveness, environmental impacts and emerging governance. Reviews [DOI] [Details]

Honours and Awards

  Year Title Awarding Body
2014 Fellow of the Royal Society of Chemistry Royal Society of Chemistry
2013 Hutchison Medal - IChemE Institution of Chemical Engineers (IChemE)
2012 Citation for Excellence in Review Geophysical Research Letters (2012) American Geophysical Union
2006 ES&T Excellence in Review Award American Chemical Society
2012 Superior Paper Award Aquacultural Engineering Society

Committees

  Committee Function From / To
International GEOTRACES standards and intercalibration committee /

Teaching Interests