FN Archimer Export Format
PT J
TI Response of Mytilus edulis to enhanced phytoplankton availability by controlled upwelling in an oligotrophic fjord
BT 
AF STROHMEIER, Tore
   STRAND, Oivind
   ALUNNO-BRUSCIA, Marianne
   DUINKER, Arne
   ROSLAND, Rune
   AURE, Jan
   ERGA, Svein R.
   NAUSTVOLL, Lars J.
   JANSEN, Henrice M.
   CRANFORD, Peter J.
AS 1:1;2:1;3:1,2;4:3;5:4;6:1;7:4;8:5;9:1,6;10:7;
FF 1:;2:;3:PDG-RBE-PFOM-PI;4:;5:;6:;7:;8:;9:;10:;
C1 Inst Marine Res, N-5817 Bergen, Norway.
   IFREMER, UMR 6539, F-29840 Argenton En Landunvez, France.
   Natl Inst Nutr & Seafood Res, N-5817 Bergen, Norway.
   Univ Bergen, Dept Biol, N-5020 Bergen, Norway.
   Inst Marine Res, N-4817 His, Norway.
   Inst Marine Resources & Ecosyst Studies IMARES, NL-4400 AB Yerseke, Netherlands.
   Fisheries & Oceans Canada, Bedford Inst Oceanog, Dartmouth, NS B2Y 4A2, Canada.
C2 IMR, NORWAY
   IFREMER, FRANCE
   NIFES, NORWAY
   UNIV BERGEN, NORWAY
   IMR, NORWAY
   IMARES, NETHERLANDS
   MPO, CANADA
SI ARGENTON
SE PDG-RBE-PFOM-PI
UM LEMAR
IN WOS Ifremer jusqu'en 2018
   copubli-europe
   copubli-int-hors-europe
IF 2.361
TC 11
UR https://archimer.ifremer.fr/doc/00241/35200/33704.pdf
   https://archimer.ifremer.fr/doc/00241/35200/34266.pdf
LA English
DT Article
DE ;Bivalve aquaculture;Production carrying capacity;Physiology;Fjord ecosystems;Shell growth;Tissue growth
AB The controlled upwelling of nutrient-rich deep water in oligotrophic coastal regions has been proposed as a means of increasing phytoplankton and, subsequently, bivalve aquaculture production. This was tested as part of a large-scale upwelling experiment in an oligotrophic environment (Lysefjord, Norway). The mean chlorophyll a concentration in the upwelling area was consistently higher than at the control site (mean ± SD: 3.3 ± 1.9 and 1.5 ± 0.6 mg Chl a m-3, respectively) during the 4 mo of controlled upwelling. After 2 mo with upwelling, the dry flesh weight of 1 yr-old and 2 yr-old mussels was 95% and 24% higher, respectively, than that of the mussels at the control site. The 1 yr-old mussels at the upwelling site achieved up to 2.4-fold higher dry flesh weight compared to the control. Reproductive output was also higher at the upwelling site and only there, spawning of 1 yr-old mussels was detected. Standardized clearance and respiration rates showed maximum values during the most intense period of tissue growth. Average ingestion rates were 40% higher at the upwelling than the control site. Tissue growth and clearance rates were not correlated with the measured seston parameters, suggesting that food acquisition was responsive to other exogenous parameters and/or to increased endogenous energy demands. It was concluded that the sustained upwelling of nutrient-rich deep water in an oligotrophic fjord can increase phytoplankton biomass, resulting in improved mussel growth performance and increased aquaculture production carrying capacity. Thus, controlled upwelling represents a simple but effective ecosystem engineering approach for enhancing human food production. 
PY 2015
PD JAN
SO Marine Ecology Progress Series
SN 0171-8630
PU Inter-research
VL 518
UT 000347720100010
BP 139
EP 152
DI 10.3354/meps11036
ID 35200
ER

EF