FN Archimer Export Format
PT J
TI Daily variations of the saccular endolymph and plasma compositions in the turbot Psetta maxima: relationship with the diurnal rhythm in otolith formation
BT 
AF EDEYER, Anaick
   DE PONTUAL, Helene
   PAYAN, P
   TROADEC, Herve
   SEVERE, Armelle
   MAYER-GOSTAN, N
AS 1:;2:;3:;4:;5:;6:;
FF 1:PDG-DRV-RH-LASAA;2:PDG-DRV-RH-LASAA;3:;4:PDG-DRV-RH-LASAA;5:PDG-DRV-RA-ARN;6:;
C1 IFREMER, DRV RH LASAA, Lab Sclerochronol Animaux Aquat, F-29280 Plouzane, France.
   IFREMER, DRV RA, Physiol Poissons Lab, F-29280 Plouzane, France.
   Univ Nice, CNRS, Lab Physiol & Toxicol Environm, EA 2138, F-06108 Nice, France.
   Univ Nice, CNRS, UMR 6548, Lab Physiol Cellulaire & Mol, F-06108 Nice 2, France.
C2 IFREMER, FRANCE
   IFREMER, FRANCE
   UNIV NICE, FRANCE
   UNIV NICE, FRANCE
SI BREST
SE PDG-DRV-RH-LASAA
   PDG-DRV-RA-ARN
IN WOS Ifremer jusqu'en 2018
   copubli-univ-france
IF 1.928
TC 26
UR https://archimer.ifremer.fr/doc/00000/10572/7603.pdf
LA English
DT Article
DE ;daily cycle;endolymph;otolith;chemical composition;teleost
AB We studied the circadian variations of the ionic composition ([Na+], [K+], [Cl-]), total CO2 ([tot CO2]), and protein concentration ([protein]) in the plasma and endolymph in the distal and proximal sides of the sacculus in the turbot Psetta maxima. Daily variations in total plasma calcium ([tot Ga]) were also recorded. Significant diurnal fluctuations occurred in most parameters and the spatial heterogeneity of the endolymph composition was maintained throughout a 24 h period. The main parameters implicated in otolith calcification, endolymph [tot CO2] and endolymph [protein], fluctuated diurnally, [tot CO2] was highest and [protein] lowest at night; the relative concentrations were reversed during the day. The inverse, alternating relationship of maximal and minimal [tot CO2] and [protein] implies that calcium carbonate and organic matrix rates of deposition vary in antiphase. We therefore propose that in the turbot P. maxima, in autumn, the incremental zone (L-zone) is formed at night whereas the discontinuous zone (D-zone) is formed during the daytime.
PY 2000
SO Marine Ecology Progress Series
SN 0171-8630
PU Inter-research
VL 192
UT 000085578000025
BP 287
EP 294
DI 10.3354/meps192287
ID 10572
ER

EF