Field Campaigns
Main field trip / sampling locations
Marine station "Martinska"
Summer, 2019. Martinska Šibenik: Krka River estuary
Tome is going to dive
Neven with sediment core
"The core team"
Nico is slicing sediment core
Filip is measuring pH
On-board filtration
Pascal is taking sample
Filip and Saša are joking
Captain Marin
Sampling team
Where is the fish?
On-site measurement of Cu with Cu-ISE
Nico and Filip are filtrating sample
Saša is collecting microfilm (SML)
Ana-Marija and Saša enjoying the sun :)
Winter, 2019. Martinska Šibenik: Krka River estuary
Ready to go, waiting the Captain
on the way
CTD probe ready for deployment
approaching the first site: the Skradinski Buk waterfalls
16-30 July, 2018. Martinska Šibenik: Krka River estuary
Summer 2018 team
time for lunch
Ready to go...
Martinska seaside view and new 12 L sampler
Sebastian and Nicolas from Toulon Univ.
Sampling along the Krka River Estuary (Nicolas, Seb, Jasmin, Saša and Anđela)
Chromium determination and speciation (Jasmin P.)
Lab filtration (Ivan G.)
"daily lab scenes..." (Dario O. , Sebastian, and Nicolas L.)
Voltammetric in-situ profiler (VIP) - (Abra P.)
"On-site" automatic measurements (Jasmin P.)
Au-microwire (10 um) - Arsenic speciation (Dario O. and Nocolas L.)
Ready to collect sea Surface MicroLayer (SML) and sea foam with new "drum sampler" (Sasa and Dario)
and UV/Vis CDOM determination (Sasa M.)
Size fracionation - 5 fractions, 6 depths
November 27th/December 8th, 2017. Martinska Šibenik: Krka River estuary
Sediment sampling at the Krka estuary ...
... and Eh, pH measurement in Lab...
... and dirty job.
Evening CTD profiling and sampling
...after DGT deployment and sampling
Trace metal size fractionation - filtration
July, 11-29, 2017. Martinska Šibenik: Krka River estuary
"Moving Lab" - waiting for the key :)
... final setup in main Lab (Jasmin P. measuring Cr speciation)
Ready for sampling at Krka River estuary
...with nice, speedy vessel...
Sampling....
Collection of sample for SPM
Setup for As speciation measurements using "u-wire Au electrode"
April, 2017. Sampling at Rogoznica lake
Working team:
J. Pađan,
M. Čanković
Testing of sampling under nitrogen atmosphere in sampling bottle - adapted bottle cap
Testing of long-time stability of anoxic samples - chemically (chromium stability) and visually
Samples collected along the profile at the Rogoznica Lake: after 1 week;
....after 2 weeks in fridge):
Measurement of Cr under controlled nitrogen atmosphere (anoxic) :
22.01-11.02.2017. Zagreb and Martinska Šibenik: the Krka River estuary
Working team:
D. Omanović,
C. Garnier (Toulon University),
Ne. Cukrov,
Nu. Cukrov
M. Vrdoljak, PhD student
J. Pađan, PhD student
Amonda El Houssainy (PhD student from Lebanon)
Cedric Garnier talk at RBI:
"Toulon Bay (NW Mediterranean Sea) sediments contamination: Diagnostic and impact on the coastal ecosystem” 25.1.2017. at 11h (III wing)
Winter field campaign II:
Collection of sample within the vertical profile of the Krka River Estuary
Size fractionation of trace metals - collection of samples of different filter cut-offs (w/o filtration, 5 um, 1.2 um and 0.22 um)
Study of interactions of isolated marine organic matter (OM) with copper (Cu)
VIP (Voltamemtric In-situ Profiler) testing - Instrument for in-situ determination of trace metals
Sampling of sediment core and pore-water extraction and analysis (related to "dredging" study).
Working atmosphere at Martinska "office":
new HRZZ equipment (Eppendorf Centrifuge 5804 + rotor S-4-72):
Nuša C. and Amonda E.: pore water extraction under (nitrogen) atmosphere
...will be nice photos for thesis...
Automated voltammetric systems for TM analyses and speciation (M. V.):
... and another one
VIP (Voltamemtric In-situ Profiler)
... a tricky job for in-situ analysis of TM ...
...using flow-cell.
Cedric and Dario: Filtering of samples taken in the salinity gradient with different filter cut-offs:
December, 12-16, 2016. Martinska Šibenik: Krka River estuary
Working team:
D. Omanović,
A.-M. Cindrić, post.doc.
Ne. Cukrov,
M. Vrdoljak, PhD student
J. Pađan, PhD student
Winter field campaign I:
Collection of sample within the vertical profile of the Krka River Estuary
Determination of TM (focus on: Fe, Cr, Zn, Cd, Pb, Cu, Ni and Co)
Speciation of TM within salinity gradient (Cu and Fe)
Determination of chromophoric dissolved organic matter (CDOM) by UV-Vis spectroscopy - evaluation of a new measurement and data treatment (software) protocols
Sampling by scuba diving ...
Preparation of bottles and samples pre-treatment (filtration):
July, 11-27, 2016. Martinska Šibenik: Krka River estuary and Rogoznica Lake
Working team:
D. Omanović,
I. Pižeta,
Ne. Cukrov,
C. Garnier (FRA, Toulon Univ.),
V. Lenoble (FRA, Toulon Univ.),
J. Pađan, a new Lab member, PhD student - working on redox speciation of Chromium (Cr) (MEBTRACE)
Nu. Cukrov, a new Lab member, PhD student - working on geochemistry of trace metals in suspended meterial and sediments,
L. Cotte (FRA, Brest, IFREMER) - joined to this field campaign - working on speciation of Cu in hydrothermal samples (Antlatic Ocean).
Summer field campaign at the Rogoznica Lake and the Krka River Estuary related to following MEBTRACE sub-thematics :
Quantification of the competitive interactions of various cations on the electrochemical determination of TM speciation
Investigation and determination of the influence of seawater pH decrease („ocean acidification“) on the speciation of TM
Improvement of the method for reliable determination of the redox speciation of Chromium (Cr)
Improvement and implementation of non-toxic micro-sensors for on-site/in-situ determination of TMs
Team members meeting and results compilation and discussion
Left photo: Nu. Cukrov, M. Čanković (joined to RJ sampling), Ne. Cukrov, C. Garnier, D. Omanović, I. Pižeta, J. Pađan and L. Cotte (V. Lenoble is missing on this photo); Right photo: Lab atmosphere
Simulations of competitive effect of major and trace elements on trace metal speciation (I. Pižeta)
New electrochemical instrument uAutolabIII (HRZZ)
Interactions of isolated organic matter (fulvic-like and humic-like) on complexation of copper by ASV and AdCSV method using SA as a ligand (D. Omanović & C. Garnier):
Investigation and determination of the influence of seawater pH decrease („ocean acidification“) on the speciation of TM (C. Garnier ˛D. Omanović):
Improvement of the method for reliable determination of the redox speciation of Chromium (Cr) (J. Pađan):
Analysis of arsenic speciation (V. Lenoble and J. Pađan):
On-site electrochemical system for continuous measurements of trace metals:
New collaboration (University of Brest, France): Speciation of Cu in hydrothermal vent samples (Antlatic Ocean) (L. Cotte):
