Fecundity, histomorphology of the ovary and size at first maturity of Neolissochilus hexagonolepis (McClelland) in Tamor River, Nepal
| Autor: | Vinod Kumar Mahaseth, Shyam Narayan Labh, Bharat Raj Subba, Suren Subba |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Maturity (geology)
General Immunology and Microbiology 05 social sciences Ovary (botany) 04 agricultural and veterinary sciences Biology Fecundity Fish measurement General Biochemistry Genetics and Molecular Biology Animal science 0502 economics and business 040102 fisheries 0401 agriculture forestry and fisheries Sexual maturity Fish 050211 marketing General Agricultural and Biological Sciences General Environmental Science Neolissochilus hexagonolepis |
| Zdroj: | Journal of Applied and Natural Science. 12:401-410 |
| ISSN: | 2231-5209 0974-9411 |
| DOI: | 10.31018/jans.v12i3.2338 |
| Popis: | Neolissochilus hexagonolepis (McClelland, 1839) is one among the notable species in snow-fed torrential rivers of Nepal. The present study attempts to investigate some reproductive traits of N. hexagonolepis, including the length at first maturity, fecundity and its relationships with biometric variables like lengths (TL, SL, and FL) and weights (TW and OW) of the fish in the mid-reaches of Tamor River, Nepal. A total of 109 fish samples were collected from the river. For each individual, total length (TL), standard length (SL) and fork length (FL) were measured in a fully stretched condition to the nearest 1mm using a measuring tape and graduated ruler, while total weight (TW) and ovary weight (OW) was measured using a digital balance with the precision of 0.01 g. The mean absolute fecundity (F) was 8356.44 ± 4612.59 and ranged from 2398.6 to 20160. SL was more significantly correlated with absolute fecundity (R2=0.59; p |
| Databáze: | OpenAIRE |
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