印度鲶鱼的早期胚胎和幼体发育,异鲶化石

Q3 Agricultural and Biological Sciences Eurasian Journal of Biosciences Pub Date : 2009-07-01 DOI:10.5053/EJOBIOS.2009.3.0.12
S. Puvaneswari, K. Marimuthu, R. Karuppasamy, M. Haniffa
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引用次数: 74

摘要

本文研究了印度鲶鱼(Heteropneustes)化石从受精到变态的胚胎和幼虫发育过程。通过人工授精获得完全成熟的卵子和精子。受精卵是底栖的,不粘着的,球形的,棕绿色的。受精卵的平均直径为1.30至1.50毫米。孵育时间23 ~ 24 h,平均温度29±1℃。新孵化的幼虫体长2.5±0.2 mm。孵化后3 d内完成蛋黄吸收。在孵化10 d后观察幼虫的空中呼吸行为。幼虫外表特征与成虫相似,在孵化后20 d内蜕变为幼虫。
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Early embryonic and larval development of Indian catfish, Heteropneustes fossilis
The present study investigated the embryonic and larval development of Indian catfish, Heteropneustes fossilis from fertilization until metamorphosis. The fully matured eggs and sperm were obtained by artificial insemination. The fertilized eggs were demersal, nonadhesive, spherical, and brownish green in color. The average diameter of the fertilized eggs ranged from 1.30 to 1.50 mm. The incubation period was from 23-24 h at an average temperature of 29±1°C. The newly hatched larvae were 2.5±0.2 mm in length. The yolk absorption was completed within three d after hatching. The aerial breathing behaviour of the larvae was observed 10 d after hatching. The larva resembled the adult in its external features and was metamorphosed to young juveniles within 20 d post-hatching.
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来源期刊
Eurasian Journal of Biosciences
Eurasian Journal of Biosciences Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)
CiteScore
1.20
自引率
0.00%
发文量
0
期刊介绍: EurAsian Journal of BioSciences (Abbrev. Eurasia J Biosci or EJOBIOS) is an international, refereed electronic journal. It publishes the results of original research in the field of biological sciences restricted tomorphology, physiology, genetics, taxonomy, ecology and biogeography of both prokaryotic and eucaryotic organisms. The journal encourages submission of manuscripts dealing with plant biology, animal biology, plant physiology, microbiology, hydrobiology, ecology and environmental science, ethnobiology, biodiversity and conservation biology. EurAsian Journal of BioSciences publishes original articles in the following areas: -Agriculture, Fisheries & Food -Anatomy & Morphology -Behavioural Sciences -Biology, Biochemistry and Biotechnology -Biophysics -Biology Education -Cellular Biology and Anatomical Sciences -Ecology, Evolution & Environment -Entomology -Forestry -General Biology -Genetics & Heredity -Life Sciences - Other topics -Microbiology and Immunology -Molecular Biology -Mycology -Palaeontology -Parasitology -Pharmacology & Pharmacy -Physiology and Related Sciences -Plant Sciences -Toxicology -Veterinary Sciences -Virology -Zoology
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