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dc.contributor.authorRahman‎, Obaidur
dc.contributor.authorHossain‎, Md. Yeamin
dc.contributor.authorIslam‎, Md. Akhtarul
dc.contributor.authorRahman‎, Md. Ataur
dc.contributor.authorKhatun‎, Dalia
dc.contributor.authorParvin‎, Most. Farida
dc.contributor.authorSarmin‎, Most. Shakila
dc.contributor.authorTanjin, Sumaya
dc.contributor.authorRahman, Md. Ashekur
dc.contributor.authorMawa, Zannatul
dc.contributor.authorHasan, Md. Rabiul
dc.contributor.authorZannat, Khatune
dc.contributor.authorSabbir, Wasim
dc.contributor.authorSamad, Md. Abdus
dc.coverage.spatialMaloncho Riveren_US
dc.coverage.spatialSouthern Bangladeshen_US
dc.date.accessioned2021-04-27T08:35:00Z
dc.date.available2021-04-27T08:35:00Z
dc.date.issued2020-12-31
dc.identifier.urihttp://hdl.handle.net/1834/17954
dc.description.abstractThis analysis illustrates the life history traits of Long whisker, Mystus gulio (Hamilton, ‎‎1822) including sex ratio, length-weight (LWRs) and length-length relationships (LLRs), ‎condition factors (KA, KF, KR), relative weight (WR) and form factor (a3.0), empirical based ‎size at first sexual maturity length (Lm) and natural mortality (MW, year-1). Total of 407 ‎individuals were scarcely collected from January-December 2017 using different fishing ‎gears. The sex ratio (M/F) was calculated as 1:1.26 (p<0.05). The overall sex ratio did not ‎differ significantly from the expected 1:1(p>0.05). The minimum-maximum total length ‎and body weight were observed as 5.20-15.50 cm and 2.11-33.60g for male, 5.20-17.50 ‎cm and 1.25-57.12g for female. All LWRs were very significant with all coefficients of ‎determination (r2)>0.967. The allometric coefficient indicated negative allometric growth ‎in male (b<3.0), positive allometric growth in female and also in combined (b>3.0). All ‎LLRs were significant with r2 values >0.965. The KF indicated the best condition of this ‎species for their well-being. The WR was not significantly diverse from 100 for males (p = ‎‎0.552) and females (p = 0.249), which indicate suitable condition for habitat. The a3.0 ‎were 0.0103 and 0.0108, and the Lm were 9.13 and 10.46 cm in total length for male and ‎female, respectively. Moreover, MW was 1.16 year-1 for male and 1.02 year-1 for female. ‎The results will be operative for the sustainable conservation of M. gulio in Bangladeshi ‎coastal waters and also nearby countries.‎
dc.language.isoenen_US
dc.relation.urihttps://www.pakjmsuok.comen_US
dc.rightsAttribution-ShareAlike 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-sa/4.0/*
dc.subject.otherMystus gulioen_US
dc.subject.otherpopulation structure‎en_US
dc.subject.othercondition factoren_US
dc.subject.othersize at first sexual maturityen_US
dc.subject.othernatural mortalityen_US
dc.titleLife-history traits of long whisker catfish Mystus gulio (Siluriformes: Bagridae) in the ‎coastal water (Maloncho river) of southern Bangladesh.en_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issue2en_US
dc.bibliographicCitation.titlePakistan Journal of Marine Sciencesen_US
dc.bibliographicCitation.volume29en_US
dc.description.statusPublisheden_US
dc.format.pagerange99-114en_US
dc.subject.asfaASFA_2015::F::Fisheriesen_US
dc.subject.asfaASFA_2015::L::Life historyen_US
refterms.dateFOA2021-04-27T08:35:01Z
html.description.abstractThis analysis illustrates the life history traits of Long whisker, Mystus gulio (Hamilton, ‎‎1822) including sex ratio, length-weight (LWRs) and length-length relationships (LLRs), ‎condition factors (KA, KF, KR), relative weight (WR) and form factor (a3.0), empirical based ‎size at first sexual maturity length (Lm) and natural mortality (MW, year-1). Total of 407 ‎individuals were scarcely collected from January-December 2017 using different fishing ‎gears. The sex ratio (M/F) was calculated as 1:1.26 (p<0.05). The overall sex ratio did not ‎differ significantly from the expected 1:1(p>0.05). The minimum-maximum total length ‎and body weight were observed as 5.20-15.50 cm and 2.11-33.60g for male, 5.20-17.50 ‎cm and 1.25-57.12g for female. All LWRs were very significant with all coefficients of ‎determination (r2)>0.967. The allometric coefficient indicated negative allometric growth ‎in male (b<3.0), positive allometric growth in female and also in combined (b>3.0). All ‎LLRs were significant with r2 values >0.965. The KF indicated the best condition of this ‎species for their well-being. The WR was not significantly diverse from 100 for males (p = ‎‎0.552) and females (p = 0.249), which indicate suitable condition for habitat. The a3.0 ‎were 0.0103 and 0.0108, and the Lm were 9.13 and 10.46 cm in total length for male and ‎female, respectively. Moreover, MW was 1.16 year-1 for male and 1.02 year-1 for female. ‎The results will be operative for the sustainable conservation of M. gulio in Bangladeshi ‎coastal waters and also nearby countries.‎en_US
dc.description.refereedRefereeden_US


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