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学科主题: Fisheries; Marine & Freshwater Biology
题名: Early ontogeny of Ancherythroculter nigrocauda and effects of delayed first feeding on larvae
作者: Xiong, M.; Qiao, Y.; Rosenthal, H.; Que, Y.; Chang, J.
通讯作者: Chang, J, Minist Water Resources, Inst Hydroecol, 578 Xiongchu Ave, Wuhan 430079, Hubei, Peoples R China
关键词: GROWTH ; STARVATION ; SURVIVAL ; MACKEREL
刊名: JOURNAL OF APPLIED ICHTHYOLOGY
发表日期: 2006-12-01
DOI: 10.1111/j.1439-0426.2006.00774.x
卷: 22, 期:6, 页:502-509
收录类别: SCI
文章类型: Article
部门归属: Minist Water Resources, Inst Hydroecol, Wuhan 430079, Hubei, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, Wuhan, Hubei, Peoples R China; World Sturgeon Conservat Soc, Neu Wulmstorf, Germany; Grad Univ, Chinese Acad Sci, Beijing, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Fisheries ; Marine & Freshwater Biology
研究领域[WOS]: Fisheries ; Marine & Freshwater Biology
摘要: Development of embryos and larvae in Ancherythroculter nigrocauda Yih et Woo (1964) and effects of delayed first feeding on larvae were observed after artificial fertilization. The fertilized eggs were incubated at an average temperature of 26.5 degrees C (range: 25.7-27) and the larvae reared at temperatures ranging from 21.8 to 28 degrees C. First cleavage was at 50 min, epiboly began at 7 h 5 min, heartbeat reached 72 per min at 24 h 40 min and hatching occurred at 43 h 15 min after insemination. Mean total length of newly hatched larvae was 4.04 +/- 0.03 mm (n = 15). A one-chambered gas bladder was observed at 70 h 50 min, two chambers occurred at 15 days, and scales appeared approximately 30 days after hatching. Larvae began to feed exogenously at day 4 post-hatch at an average temperature of 24 degrees C. Food deprivation resulted in a progressive atrophy of skeletal muscle fibres, deterioration of the larval digestive system and cessation of organ differentiation. Larval growth under food deprivation was significantly affected by the time of first exogenous feeding. Starved larvae began to shrink, with negative growth from day 6 post-hatch. The point of no return (PNR) was reached at day 11 after hatching. Mortality of starved larvae increased sharply from day 12 after hatching.
英文摘要: Development of embryos and larvae in Ancherythroculter nigrocauda Yih et Woo (1964) and effects of delayed first feeding on larvae were observed after artificial fertilization. The fertilized eggs were incubated at an average temperature of 26.5 degrees C (range: 25.7-27) and the larvae reared at temperatures ranging from 21.8 to 28 degrees C. First cleavage was at 50 min, epiboly began at 7 h 5 min, heartbeat reached 72 per min at 24 h 40 min and hatching occurred at 43 h 15 min after insemination. Mean total length of newly hatched larvae was 4.04 +/- 0.03 mm (n = 15). A one-chambered gas bladder was observed at 70 h 50 min, two chambers occurred at 15 days, and scales appeared approximately 30 days after hatching. Larvae began to feed exogenously at day 4 post-hatch at an average temperature of 24 degrees C. Food deprivation resulted in a progressive atrophy of skeletal muscle fibres, deterioration of the larval digestive system and cessation of organ differentiation. Larval growth under food deprivation was significantly affected by the time of first exogenous feeding. Starved larvae began to shrink, with negative growth from day 6 post-hatch. The point of no return (PNR) was reached at day 11 after hatching. Mortality of starved larvae increased sharply from day 12 after hatching.
关键词[WOS]: GROWTH ; STARVATION ; SURVIVAL ; MACKEREL
语种: 英语
WOS记录号: WOS:000241951900005
ISSN号: 0175-8659
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8790
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Minist Water Resources, Inst Hydroecol, Wuhan 430079, Hubei, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan, Hubei, Peoples R China
3.World Sturgeon Conservat Soc, Neu Wulmstorf, Germany
4.Grad Univ, Chinese Acad Sci, Beijing, Peoples R China

Recommended Citation:
Xiong, M.; Qiao, Y.; Rosenthal, H.; Que, Y.; Chang, J..Early ontogeny of Ancherythroculter nigrocauda and effects of delayed first feeding on larvae,JOURNAL OF APPLIED ICHTHYOLOGY,2006,22(6):502-509
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