Open access

The Laboratory for Oceanology
Sylvie Gobert– PhD
Chef de Travaux
http://www.ulg.ac.be/oceanbio/
•  One academic
•  Five permanent scientists
•  One post-doctoral fellow
•  Ten PhD students
•  Around 10 Master students per year
C,N,P
cycle
Food Web
Mediterranean,
Atlantic, North
sea,…
Seagrass, Marine
vertebrate,
invertebrate, plankton
Marine
ecology
Marine
ecotox
Trace
elements
Pollutants…
Modelling
C,N,P
cycle
Food Web
The ratio of the two stable isotopes in natural
materials varies during: physical, chemical and
biological processes
Marine
ecology
Carnivorous mammal
Trophic
position
δ15N
0.5 – 1 ‰
1–3‰
Fish
Zooplancton
Algae
δ13C
indicator of primary productivity
Marine
ecotox
Trace
elements
Pollutants…
Trace elements
Définition :
Eléments chimiques en faibles quantités
dans les sols, les plantes, les animaux et
l’homme
PREMIER GROUPE
Eléments traces classiques
Cd, Ni, Cu, Zn, Cr, Pb, Fe
DEUXIEME GROUPE
Eléments traces « émergents »
Be, Al, V, Mn, Sb, As, Bi, Se, Mo, Ag,
Sn
C,N,P
cycle
Food Web
An isotopic ratio mass spectrometer
(Optima, Micromass, UK) coupled to a CN-S elemental analyser (Carlo Erba, Italy).
Spectromètre de masse (IRMS) (DELTA V advantage)
Chromatographe en phase gazeuse (GC)(GC IsoLink
for C and N)
Interface GC- IRMS (ConFLO IV Universal Interface)
Trace
elements
Phtalates,PCB,
Triclosan
Inductively coupled plasma mass spectrometry ICP-MS
ICP-MS ELAN DRC II, Perkin Elmer
Be, Al, V, Mn, Co, As, Se, Mo, Ag, Sn, Sb,
Bi Cr, Fe, Ni, Cu, Zn, Cd Pb…
Hg
MiIlestone DMA-80 Direct Mercury Analyzer
powder
sample
EA-IRMS
Ethos D
Microwave assisted digestion
Direct Mercury analyzer
ELAN DRCII
MARQUE PAGE
Figure 2 : Répartition des stations retenues le long du littoral Corse et de la région PACA en relation avec la qualité de leurs eaux sur base du PREI (Gobert et al. sous presse).
8
0.10
1500
1400
1300
1200
200
5
0
Mo
PACA
0.25
5
0
Sn
PACA
16
0.05
0.00
0.9
0.8
0.7
0.6
0.3
CORSE
CORSE
CORSE
0.15
0.10
0.2
PACA
11
100
0
PACA
2
0.00
PACA
6
0.0
4
2
Ni (ppm)
CORSE
Zn
CORSE
9
4
3
2
1
0
Pd
CORSE
1
Sb
CORSE
4
2
Figure 4 : Teneurs en éléments traces (moyenne r écart-type, ppm) des faisceaux de P. oceanica pour les 18 stations échantillonnées.
ja
cc
A io N
ja o
cc rd
Ta B i o S
gl rav ud
io o
Is nn
o e
S t l ac
F l cio
or
A en t
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St B e
R na
a
C ph t
ap ae
R l
o
V An u x
ill ti
ef be
ra s
nc
he
6
A
PACA
Se (ppm)
Fe
ja
cc
A io N
ja o
c c rd
Ta B io S
gl rav ud
io o
Is nn
o e
St lac
Fl cio
or
A ent
re
gn
C o
al
vi
En
La sue
V s
C es s
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
ap ae
R l
o
V An u x
ill ti
ef b e
ra s
nc
he
A
En
La sue
V s
C es s
or e
P. b i
C er
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
a p ae
R l
o
V An u x
ill ti
ef b e
ra s
nc
he
0
ja
cc
A io N
ja o
cc r d
Ta B io S
gl rav ud
io o
Is nn
o e
St lac
Fl cio
or
A en t
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
ap ae
R l
o
V An ux
ill ti
ef b e
ra s
nc
he
PACA
V (ppm)
Cr (ppm)
10
A
Cu
ja
cc
A io N
ja o
cc r
d
Ta B io S
gl rav ud
io o
Is nn
ol e
St ac
Fl cio
or
A ent
re
gn
C o
al
vi
50
Cd (ppm)
20
20
ja
cc
A io N
ja o
cc rd
Ta B i o S
gl rav ud
io o
Is nn
o e
S t l ac
F l cio
or
A en t
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
ap ae
R l
o
V An u x
ill t i
ef be
ra s
nc
he
0
A
Al (ppm)
150
CORSE
A
100
30
Bi (ppm)
50
0
PACA
En
La sue
V s
C es s
or e
P. b i
C er
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
a p ae
R l
o
V An u x
ill ti
ef b e
ra s
nc
he
25
Co (ppm)
150
ja
cc
A io N
ja o
cc r
d
Ta B i o S
gl rav ud
io o
Is nn
ol e
S t ac
F l cio
or
A ent
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St B e
R na
a
C ph t
a p ae
R l
o
V An u x
ill t i
ef be
ra s
nc
he
100
CORSE
A
250
As (ppm)
PACA
ja
cc
A io N
ja o
cc r
d
Ta B io S
gl rav ud
io o
Is nn
ol e
St ac
Fl cio
or
A ent
re
gn
C o
al
vi
Mn
A
ja
cc
A io N
ja o
cc r
d
Ta B io S
gl rav ud
io o
Is nn
ol e
St ac
Fl cio
or
A ent
re
gn
C o
al
vi
En
La sue
V s
C es s
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
a p ae
R l
o
V An u x
ill ti
ef b e
ra s
nc
he
A
0.0000
Ag (ppm)
Fe (ppm)
Be (ppm)
Al
ja
cc
A io N
ja o
cc rd
Ta B io S
gl rav ud
io o
Is nn
o e
St lac
Fl cio
or
A ent
re
gn
C o
al
vi
En
La sue
V s
C es s
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
ap ae
R l
o
V An u x
ill ti
ef b e
ra s
nc
he
10
100
ja
cc
A io N
ja o
cc r
d
Ta B i o S
gl rav ud
io o
Is nn
ol e
S t ac
F l cio
or
A ent
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
ap ae
R l
o
V An u x
ill t i
ef b e
ra s
nc
he
30
ja
cc
A io N
ja o
cc r
d
Ta B i o S
gl rav ud
io o
Is nn
ol e
S t ac
F l cio
or
A ent
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St B e
R na
a
C ph t
ap a e
R l
o
V An u x
ill t i
ef be
ra s
nc
he
0.0025
A
CORSE
A
ja
cc
A io N
ja o
cc r
d
Ta B io S
gl rav ud
io o
Is nn
ol e
St ac
Fl c i o
or
A en t
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
ap ae
R l
o
V An ux
ill ti
ef be
ra s
nc
he
A
0.0100
CORSE
Pb (ppm)
10
Zn (ppm)
15
200
A
CORSE
PACA
ja
cc
A io N
ja o
cc r
d
Ta B io S
gl rav ud
io o
Is nn
ol e
St ac
Fl cio
or
A ent
re
gn
C o
al
vi
En
La sue
V s
C es s
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
a p ae
R l
o
V An u x
ill ti
ef b e
ra s
nc
he
24
CORSE
ja
cc
A io N
ja o
cc r
d
Ta B io S
gl rav ud
io o
Is nn
ol e
St ac
Fl cio
or
A ent
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P. rb e
C ier
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
a p ae
R l
o
V An u x
ill ti
ef b e
ra s
nc
he
Mn (ppm)
50
A
ja
cc
A io N
ja o
cc r
d
Ta B i o S
gl rav ud
io o
Is nn
ol e
S t ac
F l ci o
or
A en t
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St B e
R na
a
C ph t
ap ae
R l
o
V An u x
ill t i
ef be
ra s
nc
he
A
Be
A
40
Pd (ppm)
Cu (ppm)
75
ja
cc
A io N
ja o
cc r
d
Ta B i o S
gl rav ud
io o
Is nn
ol e
S t ac
F l cio
or
A ent
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
a p ae
R l
o
V An ux
ill t i
ef b e
ra s
nc
he
ja
cc
A io N
ja o
cc r
d
Ta B io S
gl rav ud
io o
Is nn
ol e
St ac
Fl cio
or
A en t
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P . rb e
C ier
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
ap ae
R l
o
V An ux
ill ti
ef be
ra s
nc
he
A
25
CORSE
A
Mo (ppm)
0.0050
Sb (ppm)
ja
cc
A io N
ja o
cc r
d
T a B io S
gl rav ud
io o
Is nn
ol e
S t ac
Fl ci o
or
A en t
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P . rb e
C ier
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
ap a e
R l
o
V An ux
ill t i
ef b e
ra s
nc
he
A
0.0075
ja
cc
A io N
ja o
cc r
d
Ta B io S
gl rav ud
io o
Is nn
ol e
St ac
Fl cio
or
A ent
re
gn
C o
al
vi
En
La sue
V s
C es s
o
P. rb e
C ier
he e
vr
e
R s
io
G u
ie
ns
St Be
R na
a
C ph t
ap ae
R l
o
V An ux
ill ti
ef be
ra s
nc
he
Sn (ppm)
125
CORSE
A
A
ja
cc
A io N
ja o
cc r
d
Ta B io S
gl rav ud
io o
I s nn
ol e
St ac
Fl cio
or
A ent
re
gn
C o
al
vi
En
La sue
V s
C ess
o
P. rbi e
C er
he e
vr
e
R s
io
G u
ie
ns
St B e
R na
a
C ph t
ap ae
R l
o
V An ux
ill ti
e f be
ra s
nc
he
0.0125
V
PACA
1.25
0
PACA
60
0
PACA
0.4
10
PACA
5
0.20
0.05
0
PACA
0.06
0
C ORSE
Cr
1.00
0.75
Co
As
Ag
Pb
C ORSE
PACA
0.50
0.25
0.00
C ORSE
Ni
200
40
PACA
20
0
C ORSE
Se
0.3
PACA
0.2
0.1
0.0
C ORSE
Cd
4
PACA
3
2
1
0
Bi
0.04
PACA
0.1
0.02
0.00
Pollutant impact
  Environnemental contamination
Northern Elephant seal Mirounga angustirostris
Early lactation
~ 25 days
  Diet (δ13C and δ15N)
  But also key-period
§ 
§ 
§ 
§ 
§ 
x4
x 1/3
Migration
Gestation
Lactation
Spawning
Fasting (linked to lactation, molting, migration)
Late lactation
Research projects
  DISCRIMINATION
OF MERCURY SOURCES IN MARINE VERTEBRATES
  STAtion of Reference and rEsearch on Change of local and
global Anthropogenic Pressures on Mediterranean Ecosystems
Drifts
  Rapid Assessment of the Marine Coastal Environment
  Définition précoce de a pollution en milieu marin
  Implications of Posidonia litter accumulations, and their
associated microbial and detritivorous communities, in the
carbon cycle of an oligotrophic marine coastal area.
  MedSea : Mediterranean Sea Acidification in a changing
climate
Contact information
•  [email protected] (Sylvie Gobert)
• 
• 
• 
• 
[email protected] (Krishna Das)
[email protected] (Gilles Lepoint)
M.Gré[email protected] (Marilaure Grégoire)
[email protected] (Anne Goffart)
http://www2.ulg.ac.be/oceanbio/
Please run and connect
to:
http://orbi.ulg.ac.be/

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