S. Puvaneswari, K. Marimuthu, R. Karuppasamy, M. Haniffa
{"title":"Early embryonic and larval development of Indian catfish, Heteropneustes fossilis","authors":"S. Puvaneswari, K. Marimuthu, R. Karuppasamy, M. Haniffa","doi":"10.5053/EJOBIOS.2009.3.0.12","DOIUrl":null,"url":null,"abstract":"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.","PeriodicalId":11848,"journal":{"name":"Eurasian Journal of Biosciences","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2009-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5053/EJOBIOS.2009.3.0.12","citationCount":"74","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Eurasian Journal of Biosciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5053/EJOBIOS.2009.3.0.12","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
引用次数: 74
Abstract
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.
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