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A field scale evaluation of Gracilaria lemaneiformis co-cultured with Crassostrea gigas as a nutrient bioextraction strategy in Yantian Bay, China
Wei, Zhangliang2,3; Huo, Yuanzi1,3; Liu, Qiao3; Yang, Fangfang2; Long, Lijuan2; Bi, Hongsheng1; Fan, Chunlei4; He, Peimin3
2019
Source PublicationALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
ISSN2211-9264
Volume38Pages:UNSP 101407
AbstractNutrient bioextraction using Gracilaria lemaneiformis co-cultured with Crassostrea gigas in a eutrophic, intensive mariculture area was evaluated over 49 days in Yantian Bay, which is an enclosed bay within Sansha Bay, China. The amount of nitrogen removed by G. lemaneiformis was 4.07 +/- 0.25 kg and 4.49 +/- 0.57 kg per ton (FW) at depths of 0.4-0.8 m and 1.0-1.2 m, respectively. The ranges of ammonium-nitrogen (NH4-N), nitrite-nitrogen (NO2-N), nitrate-nitrogen (NO3-N), and inorganic phosphate (PO4-P) reduction efficiencies in the co-cultured area were 39.22-80.34%, 4.70-26.14%, 13.42-48.84%, and 25.33-41.36%, respectively. The total wet weight of harvested G. lemaneiformis was 5.44 and 3.92 times greater than the initial mass (500 g FW/m), with highest specific growth rates (SGR) of 4.67 +/- 0.21%/d and 3.44 +/- 0.18%/d at 0.4-0.8 m and 1.0-1.2 m, respectively. A total of 3.11 kg of nitrogen could be removed from the co-cultured area per ton of C. gigas harvested with a total length (TL) of 80 +/- 12 mm. Based on the nitrogen balance in this co-cultured system, the largest proportion of nitrogen removal from the co-cultured system was the harvest production of G. lemaneiformis (25.44%), followed by C. gigas (8.27%). The quantity of nitrogen excreted and metabolized by C. gigas was 33.40 kg, which could be entirely assimilated by the G. lemaneiformis during the experimental period. Based on these results, at least 6.76 tons of G. lemaneiformis should be co-cultured per ton of C. gigas (77-80 mm TL) to remove the nitrogen produced by C. gigas in this mariculture area. The results of this study indicate that the co-culture G. lemaneiformis with C. gigas is an environmentally-friendly mariculture method which could effectively remove surplus nutrients and reduce the environmental impact of mariculture areas.
DepartmentLMB
KeywordEutrophication Nutrient bioextraction Environmentally friendly mariculture Bioremediation Seaweed Shellfish
DOI10.1016/j.algal.2019.101407
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17890
Collection中科院海洋生物资源可持续利用重点实验室
Affiliation1.Shanghai Ocean Univ, Coll Marine Ecol & Environm, Shanghai 201306, Peoples R China
2.Univ Maryland, Chesapeake Biol Lab, Ctr Environm Sci, 146 Williams St, Solomons, MD 20688 USA
3.Chinese Acad Sci, Key Lab Trop Marine Bioresources & Ecol, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
4.Shanghai Ocean Univ, Maine Sci Res Inst, Shanghai 201306, Peoples R China
5.Morgan State Univ, Biol Dept, Patuxent Environm & Aquat Res Lab, St Leonard, MD 20685 USA
Recommended Citation
GB/T 7714
Wei, Zhangliang,Huo, Yuanzi,Liu, Qiao,et al. A field scale evaluation of Gracilaria lemaneiformis co-cultured with Crassostrea gigas as a nutrient bioextraction strategy in Yantian Bay, China[J]. ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,2019,38:UNSP 101407.
APA Wei, Zhangliang.,Huo, Yuanzi.,Liu, Qiao.,Yang, Fangfang.,Long, Lijuan.,...&He, Peimin.(2019).A field scale evaluation of Gracilaria lemaneiformis co-cultured with Crassostrea gigas as a nutrient bioextraction strategy in Yantian Bay, China.ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,38,UNSP 101407.
MLA Wei, Zhangliang,et al."A field scale evaluation of Gracilaria lemaneiformis co-cultured with Crassostrea gigas as a nutrient bioextraction strategy in Yantian Bay, China".ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS 38(2019):UNSP 101407.
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