FN Archimer Export Format
PT J
TI Biological characteristics of sperm in European flat oyster (     Ostrea edulis     )
BT 
AF SUQUET, Marc
   POUVREAU, Stephane
   QUEAU, Isabelle
   BOULAIS, Myrina
   LE GRAND, Jacqueline
   RATISKOL, Dominique
   COSSON, Jacky
AS 1:1;2:1;3:1;4:1;5:1;6:1;7:2;
FF 1:PDG-RBE-PFOM-LPI;2:PDG-RBE-PFOM-LPI;3:PDG-RBE-PFOM-LPI;4:PDG-RBE-PFOM-PI;5:PDG-RBE-PFOM-LPI;6:PDG-RBE-PFOM-LPI;7:;
C1 Ifremer, UMR 6539, Lemar, PFOM Dept,Stn Expt Argenton, Argenton, France.
   Univ South Bohemia, Fac Fisheries & Protect Waters, Vodnany, Czech Republic.
C2 IFREMER, FRANCE
   UNIV S BOHEMIA, CZECH REPUBLIC
SI ARGENTON
   BREST
SE PDG-RBE-PFOM-LPI
   PDG-RBE-PFOM-PI
UM LEMAR
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 0.864
TC 8
UR https://archimer.ifremer.fr/doc/00454/56539/58245.pdf
LA English
DT Article
DE ;Oyster;Ostrea edulis;brooding species;sperm;spermatozeugmata;endangered species
AB n brooding mollusc species that incubate larvae before their release in seawater, the biology of gametes remains poorly explored. The present study describes some biological characteristics of sperm of the European flat oyster, a native species that has been over-exploited in the past and is nowadays classified as an endangered species in Europe. Flat oysters were collected by divers in the Rade de Brest (Finistère, France), during its natural reproduction period. Gonadal pH is acidic (6.31 ± 0.10). Spermatozoa are clustered in spermatozeugmata, an acellular structure in which the sperm heads are embedded. After their transfer in seawater, spermatozeugmata have a mean diameter of 64 ± 3 μm and they release free spermatozoa for a mean duration of 21 ± 3 min. Immediately after their release, the mean percentage of motile spermatozoa was 48.5 ± 12.6%. At 10 min after dilution in seawater, movement of spermatozoa was no more observed. Biological characteristics of European flat oyster sperm are compared to those observed in the Pacific oyster, regarding the unique reproductive behaviour of the former species and the role of spermatozoa transfer played by spermatozeugmata. The present results aim to improve the knowledge of reproduction and natural recruitment processes, support conservation and restoration measures and favour the establishment of management protocols of gametes and larvae in this endangered species. 
PY 2018
PD AUG
SO Aquatic Living Resources
SN 0990-7440
PU Edp Sciences S A
VL 31
UT 000443103100002
DI 10.1051/alr/2018008
ID 56539
ER

EF