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Nitrogen and phosphorus budget of a Haliotis discus hannai and Apostichopus japonicus polyculture system
Gao, Xiaolong1,2; Zhang, Mo2; Li, Xian2; Wu, Fucun2; Liu, Ying3
2019-04-01
Source PublicationAQUACULTURE RESEARCH
ISSN1355-557X
Volume50Issue:4Pages:1005-1019
Corresponding AuthorLi, Xian(lixian@qdio.ac.cn) ; Liu, Ying(yingliuaquaculture@gmail.com)
AbstractThe system nitrogen (N), phosphorous (P) budget, N/P utilization rate and the physiological response mechanism of the abalone Haliotis discus hannai (body weight: 12.87 +/- 0.82 g) and the sea cucumber Apostichopus japonicus (body weight: 10.85 +/- 1.16 g) to different co-culture environment conditions were examined. Animals were kept in a multilayer, cubic recirculating aquaculture system at different polyculture densities (abalones at 400 ind/m(2)in monoculture [Group C] and abalones at 400 ind/m(2)with sea cucumbers at 10 ind/m(2) [AS1] or 20 ind/m(2) [AS2]). Each treatment was replicated four times, and the experimental cycle was 90 days. No significant difference in survival rate of abalones was detected when the stocking density of sea cucumbers increased from 10 to 20 ind/m(2), but the concentrations of total ammonia nitrogen and nitrite nitrogen in the water were significantly higher in AS2 than in AS1. Survival rate, specific growth rate (SGR) of body weight of sea cucumbers and SGR of body weight of abalones were significantly lower in AS2 than in AS1. No significant difference in protease (PES), lipase, amylase and cellulase activities of abalones was identified between Group C and AS1, but the PES and amylase activities of abalones and sea cucumbers in AS1 were significantly higher than those in AS2. In AS1, the N/P output from harvesting of abalones and sea cucumbers and the N/P utilization rates were significantly higher than those in AS2. Although the N/P output from faeces was significantly lower in AS2 than in Group C and AS1, the N/P output from the water layer was significantly higher than that in AS1. The expression levels of Cu/Zn superoxide dismutase (Cu/Zn-SOD) and heat shock protein 70 (HSP70) of both abalones and sea cucumbers in AS2 were significantly higher than those in AS1. No significant difference in expression of catalase (CAT) and HSP90of abalones was identified among these groups, but the expression levels of CAT and HSP90of sea cucumbers in AS2 were significantly higher than those in AS1. These results indicate that stocking sea cucumbers at 10 ind/m(2) in the polyculture system will relieve the organic load on the system and improve the N/P utilization rate. It will also increase aquaculture production and improve the ecological and economic benefits of the system.
KeywordApostichopus japonicus digestive enzyme activity gene expression Haliotis discus hannai nitrogen and phosphorus budget polyculture
DOI10.1111/are.13971
Indexed BySCI
Language英语
Funding ProjectModern Agro-industry Technology Research System[CARS-48] ; National Key R&D Program of China[2017YFB0404000] ; National Natural Science Fund of China[31672673]
WOS Research AreaFisheries
WOS SubjectFisheries
WOS IDWOS:000460678900003
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/155302
Collection实验海洋生物学重点实验室
Corresponding AuthorLi, Xian; Liu, Ying
Affiliation1.Xiamen Univ, Coll Ocean & Earth Sci, Xiamen, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao, Shandong, Peoples R China
3.Dalian Ocean Univ, Dalian, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Gao, Xiaolong,Zhang, Mo,Li, Xian,et al. Nitrogen and phosphorus budget of a Haliotis discus hannai and Apostichopus japonicus polyculture system[J]. AQUACULTURE RESEARCH,2019,50(4):1005-1019.
APA Gao, Xiaolong,Zhang, Mo,Li, Xian,Wu, Fucun,&Liu, Ying.(2019).Nitrogen and phosphorus budget of a Haliotis discus hannai and Apostichopus japonicus polyculture system.AQUACULTURE RESEARCH,50(4),1005-1019.
MLA Gao, Xiaolong,et al."Nitrogen and phosphorus budget of a Haliotis discus hannai and Apostichopus japonicus polyculture system".AQUACULTURE RESEARCH 50.4(2019):1005-1019.
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