FN Archimer Export Format
PT J
TI The reproductive cycle of the European clam Ruditapes decussatus (L., 1758) in two Portuguese populations: Implications for management and aquaculture programs
BT 
AF MATIAS, Domitilia
   JOAQUIM, Sandra
   MATIAS, Ana Margarete
   MOURA, Paula
   SOUSA, Joana
   SOBRAL, Paula
   LEITAO, Alexandra
AS 1:1;2:1;3:1;4:1;5:1,2;6:3;7:1;
FF 1:;2:;3:;4:;5:PDG-RBE-PFOM-PI;6:;7:;
C1 Inst Portugues Mar & Atmosfera, P-8700305 Olhao, Portugal.
   IFREMER, Ctr Bretagne, UMR 6539, Lab Sci Environm Marin, F-29280 Plouzane, France.
   Univ Nova Lisboa, Fac Ciencias & Tecnol, IMAR Inst Mar, P-2829 Caparica, Portugal.
C2 IPMA, PORTUGAL
   IFREMER, FRANCE
   UNIV NOVA LISBOA, PORTUGAL
SI BREST
SE PDG-RBE-PFOM-PI
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 1.828
TC 32
UR https://archimer.ifremer.fr/doc/00152/26292/25461.pdf
LA English
DT Article
DE ;European clam;Ruditapes decussatus;Reproductive cycle;Portuguese populations;Biochemical composition;Seasonal variations
AB The reproductive cycle, as well as its nutrient storage and utilization, of two populations of Ruditapes decussatus from the main production areas of this species: Ria de Aveiro and Ria Formosa Lagoon (Portugal) were studied here over a 24 month period (May 2010-April 2012). The reproductive cycle of both populations of R. decussatus followed an annual cyclicality that comprised a ripe stage in spring followed by a spawning period that began in late spring and extended throughout summer until early autumn. This extended and continuous spawning period may be an advantageous strategy for this species by ensuring a continuous supply of gametes. Moreover, R. decussatus can adopt different reproductive strategies depending on the geographical origin. The results of both cycle of nutrients stored and nutrients utilization showed that clams of both populations present a high reproductive effort that almost depletes its energy reserves. Nevertheless, while Ria de Aveiro population retrieves them immediately after spawning, the same is not verified in clams from Ria Formosa Lagoon with their consequent debilitation. Also, based on the glycogen pattern it was possible to infer that the Ria Aveiro population is an opportunistic one, while the Ria Formosa Lagoon population exhibited an intermediate strategy. However, both populations could be considered as viable broodstock for intensive hatchery production of juveniles and the observed extended spawning periods presents interesting implications for the implementation of profitable aquaculture. Moreover, this species presented a great capacity for gonadal regeneration, which coupled with its high gonadal development rate would provide larvae during most of the year without extensive and expensive broodstock conditioning.
PY 2013
PD AUG
SO Aquaculture
SN 0044-8486
PU Elsevier Science Bv
VL 406
UT 000322316400007
BP 52
EP 61
DI 10.1016/j.aquaculture.2013.04.030
ID 26292
ER

EF