FN Archimer Export Format
PT J
TI Effects of water viscosity upon ventilation and metabolism of a flatfish, the common sole Solea solea (L.)
BT 
AF COUTURIER, Christine
   ROUAULT, Alice
   MCKENZIE, David
   GALOIS, Robert
   ROBERT, Serge
   JOASSARD, Lucette
   CLAIREAUX, Guy
AS 1:1;2:3;3:2,4;4:1,4;5:3;6:3;7:2,4;
FF 1:;2:;3:;4:;5:PDG-DOP-DCN-AGSAE-CREMA;6:PDG-DOP-DCN-AGSAE-CRELA;7:;
C1 Univ La Rochelle, CNRS, IFREMER, CRELA, F-17137 Lhoumeau, France.
   Univ Montpellier 2, CNRS, ISEM, Stn Mediterraneenne Environm Littoral, F-34200 Sete, France.
   IFREMER, CRELA, F-17137 Lhoumeau, France.
C2 UNIV LA ROCHELLE, FRANCE
   UNIV MONTPELLIER, FRANCE
   IFREMER, FRANCE
   CNRS, FRANCE
SI LA ROCHELLE
SE PDG-DOP-DCN-AGSAE-CRELA
   PDG-DOP-DCN-AGSAE-CREMA
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.215
TC 10
UR https://archimer.ifremer.fr/doc/2007/publication-2801.pdf
LA English
DT Article
DE ;EPS;Hypoxia;Metabolism;Water viscosity;Biodeposition;Solea solea
AB The French Atlantic coast contains large highly productive intertidal mudflats that are colonised by juveniles of numerous flatfish species, including the common sole (Solea solea, L.). These ecosystems are also heavily exploited by the shellfish farming industry. Intensive bivalve culture is associated with substantial biodeposition (1-6 t-dw ha(-1) day(-1)), which directly or indirectly contributes to increase exopolysaccharide (EPS) concentrations at the interface between water column and seabed. EPS are long-chain molecules organised into colloids, which influence rheological properties of water, particularly viscosity. Increased water viscosity had consequences for ventilatory activity of juvenile flatfish, whereby the minimal pressure required to ventilate the medium increases directly with EPS concentration. Moreover, the critical EPS concentration ([EPS](crit)) at which water was no longer able to flow through the branchial basket ranged from almost nil to over 30 mg l(-1), depending on species and size. [EPS](crit) was lower in small individuals and individuals from species with high metabolic rates (turbot and plaice). These differences may depend upon gill and bucco-branchial cavity morphometrics. The ventilatory workload of sole increased with viscosity to a maximum at 2 mg EPS l(-1). Viscosity might, therefore, be a limiting factor for flatfish post larvae, which colonise the intertidal mudflats, depending upon their size and species. EPS concentrations in the field can reach 15 mg l(-1). A selective effect is conceivable but remains to be estimated in the field.
PY 2007
PD SEP
SO Marine Biology
SN 0025-3162
PU Springer
VL 152
IS 4
UT 000248912600005
BP 803
EP 814
DI 10.1007/s00227-007-0731-z
ID 2801
ER

EF