Bionomics, length-weight relationship and condition factor of Chocolate mahseer, Neolissochilus hexagonolepis from Dikhu River, Nagaland

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dc.contributor.authorKechu, M.en_US
dc.contributor.authorEzung, S.en_US
dc.contributor.authorPankaj, P.P.en_US
dc.date.accessioned2024-11-30T11:59:21Z
dc.date.available2024-11-30T11:59:21Z
dc.date.issued2023-09
dc.description.abstractAim: Chocolate mahseer (Neolissochilus hexagonolepis) is widely distributed in the North-eastern region of India. The study aimed to evaluate the bionomic aspects of chocolate mahseer of Nagaland to validate its status. Methodology: Fish Neolissochilus hexagonolepis were collected from March 2019 to February 2020 from Dikhu River, Nagaland. Regression analysis for morphometric study was conducted using the least square method. Logarithmically transformed total length and weight data were utilized to determine the correlation coefficient 'r', coefficient of determination 'r²', and condition factor for male, female, and pooled groups. Results: The highest correlation was seen in standard length ('r' = 0.9968), and the least correlation was observed in eye diameter ('r' = 0.7769). The length-weight relationship exhibited two growth patterns, namely negative allometric growth, which were represented by females (b = 2.807) and pooled (b = 2.868) population, whereas the population of males displayed positive allometric growth (b = 3.015). The correlation coefficient and coefficient of determination of males, females and the pooled sexes showed a positive correlation with relation to its length and weight ranging from 'r' = 0.970 - 0.981 and 'r²' = 0.941 - 0.961, respectively. The condition factor for all the groups ranged from 1.10 - 1.14. Interpretation: Morphometric traits like standard length, snout length, head length etc. (dependent variable) were analyzed on total length (independent variable), signifying a positive correlation among variables. Length-weight relationship displayed high significance between length and weight parameters. The condition factor for all the groups indicated general well-being of fish condition in their environment.en_US
dc.identifier.affiliationsDepartment of Zoology, Nagaland University, Lumami- 798 627, Indiaen_US
dc.identifier.affiliationsDepartment of Zoology, Nagaland University, Lumami- 798 627, Indiaen_US
dc.identifier.affiliationsDepartment of Zoology, Nagaland University, Lumami- 798 627, Indiaen_US
dc.identifier.citationKechu M., Ezung S., Pankaj P.P.. Bionomics, length-weight relationship and condition factor of Chocolate mahseer, Neolissochilus hexagonolepis from Dikhu River, Nagaland. Journal of Environmental Biology. 2023 Sept; 44(5): 706-712en_US
dc.identifier.issn0254-8704
dc.identifier.issn2394-0379
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/238467
dc.languageenen_US
dc.publisherTriveni Enterprisesen_US
dc.relation.issuenumber5en_US
dc.relation.volume44en_US
dc.source.urihttps://doi.org/10.22438/jeb/44/5/MRN-5114en_US
dc.subjectChocolate mahseeren_US
dc.subjectCondition factoren_US
dc.subjectLength-weight relationshipen_US
dc.subjectMorphometric studiesen_US
dc.titleBionomics, length-weight relationship and condition factor of Chocolate mahseer, Neolissochilus hexagonolepis from Dikhu River, Nagalanden_US
dc.typeJournal Articleen_US
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