PMID- 30617928
OWN - NLM
STAT- MEDLINE
DCOM- 20190201
LR  - 20200225
IS  - 1573-2959 (Electronic)
IS  - 0167-6369 (Linking)
VI  - 191
IP  - 2
DP  - 2019 Jan 7
TI  - Drastic difference in cadmium concentration in mussels (Mytilus chilensis) 
      observed between seasons in natural bed and aquaculture systems in Chile.
PG  - 53
LID - 10.1007/s10661-018-7169-2 [doi]
AB  - Globally, Chile is the second largest producer of mussels, with 99% of production 
      concentrated in the inland sea of the Los Lagos Region, Southern Chile. This 
      study reveals that seasons produce a drastic difference in the cadmium 
      concentration (Cd) in marine mussels in bay, channel, and fjord ecosystems in 
      this area. As the global mussel industry continues its rapid expansion, a 
      complete understanding of cadmium pathways is critical in order to minimize the 
      cadmium content in harvests. In this study, biweekly sampling was conducted in 
      Chiloe (Southern Chile), during five consecutive seasons from June 2014 to 
      November 2015. Cadmium in the soft tissues (ST) and in the content of the 
      digestive gland (CDG) of Mytilus chilensis were investigated, in addition to 
      resuspensions and seston to determine the effect of the seasons on metal 
      bioassimilation capacity. In spring, the (Cd) between CDG and ST varied by 
      approximately 2 mg Cd kg(-1) dry mass (DM). In summer and autumn, the (Cd) in CDG 
      increased from 3 to 6 mg Cd kg(-1) while the (Cd) in ST decreased from 2.5 to 
      1.5 mg Cd kg(-1) DM. The three ecosystems showed the same cadmium 
      bioconcentration trends in all seasons, revealing coherent global trends. These 
      findings should caution the industry and coastal populations about the seasonal 
      variability and intensity of cadmium metal transfer to biofilters, especially 
      because of the adverse effects of cadmium consumption on human health. 
      Additionally, this study found that mussels in natural beds concentrate more Cd 
      (> 1 mg Cd kg(-1) DM) than in industrial facilities. Multiregression analysis 
      showed and explained the cadmium in CDG for three ecosystems: channel (R(2) 
      0.9537), bay (R(2) 0.5962), and fjord (R(2) 0.4009). The independent variable 
      nocturnal seston was able to explain the increase in cadmium.
FAU - Max Blanc, J
AU  - Max Blanc J
AD  - Programa de Doctorado en Ciencias de la Acuicultura, Universidad Austral de 
      Chile, Los Pinos s/n, Balneario Pelluco, Puerto Montt, Chile. jblanc@uach.cl.
FAU - Molinet, Carlos
AU  - Molinet C
AD  - Programa de Investigacion Pesquera and Instituto de Acuicultura, Universidad 
      Austral de Chile, Los Pinos s/n, Balneario Pelluco, Puerto Montt, Chile.
FAU - Diaz, Patricio A
AU  - Diaz PA
AD  - Centro i~mar and CeBiB, Universidad de Los Lagos, Casilla 557, Puerto Montt, 
      Chile.
FAU - Subiabre, Ricardo
AU  - Subiabre R
AD  - Centro de Docencia Superior en Ciencias Basicas, Universidad Austral de Chile, 
      Los Pinos s/n, Balneario Pelluco, Puerto Montt, Chile.
FAU - Salamanca, Marco
AU  - Salamanca M
AD  - Facultad de Ciencias Naturales y Oceanograficas, Universidad de Concepcion, 
      Cabina 5, Barrio Universitario S/N Casilla 160-c, Concepcion, Chile.
FAU - Duemler, Jaclyn
AU  - Duemler J
AD  - Project CORFO INNOVA, COD. 17ITE1-76255, Santiago, Chile.
LA  - eng
GR  - PAI781301009/CONICYT/
PT  - Journal Article
DEP - 20190107
PL  - Netherlands
TA  - Environ Monit Assess
JT  - Environmental monitoring and assessment
JID - 8508350
RN  - 0 (Water Pollutants, Chemical)
RN  - 00BH33GNGH (Cadmium)
SB  - IM
MH  - Animals
MH  - *Aquaculture
MH  - Cadmium/analysis/*metabolism
MH  - Chile
MH  - *Environmental Monitoring
MH  - Mytilus/*metabolism
MH  - Seafood/analysis
MH  - Seasons
MH  - Water Pollutants, Chemical/analysis/*metabolism
MH  - Water Pollution, Chemical/*statistics & numerical data
OTO - NOTNLM
OT  - Cadmium
OT  - Marine sediments
OT  - Mussel
OT  - Resuspension events
OT  - Seasons
EDAT- 2019/01/09 06:00
MHDA- 2019/02/02 06:00
CRDT- 2019/01/09 06:00
PHST- 2018/08/01 00:00 [received]
PHST- 2018/12/17 00:00 [accepted]
PHST- 2019/01/09 06:00 [entrez]
PHST- 2019/01/09 06:00 [pubmed]
PHST- 2019/02/02 06:00 [medline]
AID - 10.1007/s10661-018-7169-2 [pii]
AID - 10.1007/s10661-018-7169-2 [doi]
PST - epublish
SO  - Environ Monit Assess. 2019 Jan 7;191(2):53. doi: 10.1007/s10661-018-7169-2.