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Energy budget adjustment of sea cucumber Apostichopus japonicus during breeding period
Ru, Xiaoshang1; Zhang, Libin2; Liu, Shilin2; Sun, Jingchun2; Yang, Hongsheng2
2018-04-01
Source PublicationAQUACULTURE RESEARCH
ISSN1355-557X
Volume49Issue:4Pages:1657-1663
SubtypeArticle
AbstractReproductive success is unpredictable for many cultured echinoderms. And cost of reproduction plays an important role in animal life-history. Therefore, understanding cost of reproduction contributes to improving breeding techniques during broodstock rearing in aquaculture. In this study, energetic costs during breeding were explored in the sea cucumber, Apostichopus japonicus, an important aquaculture species in China, Japan and South Korea. The food intake, digestive functions and energy budget patterns were estimated at different breeding stages. Unexpectedly, in the growing gonad phase of the sea cucumber lifecycle, animals showed a decline in feed consumption (from 4.49 to 2.6 g ind(-1) day(-1)), ingestion rate (from 0.4 to 0.13 g g(-1) day(-1)) and apparent digestive rate (from 14.73% to 10.92%), resulting in a reduced energy input. In addition, the increased energy investment in reproduction (from 1.76% to 15.61%) resulted in a decrease in energy allocated to soma growth (from 17.1% to 5.64%) and self-maintenance (from 47.82% to 34.67%). These results suggest that reproduction impairs energy acquisition ability in breeding A. japonicus. And broodstock can adapt energy shortage by internal adjustment of energy allocation strategy.
Keywordcost of reproduction energy budget reproductive success sea cucumber
Subject AreaFisheries
DOI10.1111/are.13621
Indexed BySCIE
Language英语
WOS Research AreaFisheries
WOS IDWOS:000427003200029
PublisherWILEY
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/157581
Collection海洋生态与环境科学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Ru, Xiaoshang,Zhang, Libin,Liu, Shilin,et al. Energy budget adjustment of sea cucumber Apostichopus japonicus during breeding period[J]. AQUACULTURE RESEARCH,2018,49(4):1657-1663.
APA Ru, Xiaoshang,Zhang, Libin,Liu, Shilin,Sun, Jingchun,&Yang, Hongsheng.(2018).Energy budget adjustment of sea cucumber Apostichopus japonicus during breeding period.AQUACULTURE RESEARCH,49(4),1657-1663.
MLA Ru, Xiaoshang,et al."Energy budget adjustment of sea cucumber Apostichopus japonicus during breeding period".AQUACULTURE RESEARCH 49.4(2018):1657-1663.
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