TY - JOUR
T1 - Benthic suspension-feeding clams affect sedimentary microbial communities and nitrogen cycling in seawater pond IMTA
AU - Yuan, Sheng Yi
AU - Zhu, Wen Jun
AU - Neori, Amir
AU - Zhang, Ying
AU - Li, Meng
AU - Li, Jian
AU - Chang, Zhi Qiang
N1 - Publisher Copyright:
© 2022
PY - 2023/1/30
Y1 - 2023/1/30
N2 - Suspension-feeding bivalves are the key driver unit for cycling of material and energy in integrated multi-trophic aquaculture (IMTA) system, but only few studies have examined their bioturbation effects in land-based aquaculture system. In the present study we explored the effects of different species (Ruditapes philippinarum, Sinonovacula constricta and Mercenaria mercenaria) and stocking density of benthic clams on the structure and function (specifically, nitrification and denitrification) in pond IMTA using a medium-scale mesocosm incubation system. It was found that co-cultured with 3 benthic clam species respectively decreased the inorganic nitrogen and phosphate in water column, affected the sediment microbial communities, and increased abundance of nitrogen cycling related genes, such as AOB, nifH and nosZ, in sediment. Moreover, the moderate density of R. philippinarum (125 ind. /m2, weight of clam at 4.5 g ind.−1) have a higher activities of nitrogen cycling. The results are of great value on discovering the ecological mechanism of pond IMTA and improve the current IMTA models.
AB - Suspension-feeding bivalves are the key driver unit for cycling of material and energy in integrated multi-trophic aquaculture (IMTA) system, but only few studies have examined their bioturbation effects in land-based aquaculture system. In the present study we explored the effects of different species (Ruditapes philippinarum, Sinonovacula constricta and Mercenaria mercenaria) and stocking density of benthic clams on the structure and function (specifically, nitrification and denitrification) in pond IMTA using a medium-scale mesocosm incubation system. It was found that co-cultured with 3 benthic clam species respectively decreased the inorganic nitrogen and phosphate in water column, affected the sediment microbial communities, and increased abundance of nitrogen cycling related genes, such as AOB, nifH and nosZ, in sediment. Moreover, the moderate density of R. philippinarum (125 ind. /m2, weight of clam at 4.5 g ind.−1) have a higher activities of nitrogen cycling. The results are of great value on discovering the ecological mechanism of pond IMTA and improve the current IMTA models.
KW - IMTA
KW - Microbial communities
KW - Nitrogen cycling
KW - Suspension-feeding clams
UR - http://www.scopus.com/inward/record.url?scp=85139736763&partnerID=8YFLogxK
U2 - 10.1016/j.aquaculture.2022.738907
DO - 10.1016/j.aquaculture.2022.738907
M3 - Article
AN - SCOPUS:85139736763
SN - 0044-8486
VL - 563
JO - Aquaculture
JF - Aquaculture
M1 - 738907
ER -
