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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue May 2021, 42 (3)                                     Back


nstantaneous and historical temperature effects on a-pinene

Truss network based morphometric and meristic variations among south-western populations of Macrognathus aculeatus in Bangladesh

 

M. Sarower-E-Mahfuj1*, S.K. Das2, K.N. Azad3, A.K. Paul4, I. Hoshan5, S. Sultana6 and M. Biswas1 

1Department of Fisheries and Marine Bioscience, Jashore University of Science and Technology, Jashore, 7408, Bangladesh

2Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Malaysia

3Department of Aquaculture, Faculty of Fisheries, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh

4Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi, 6205, Bangladesh

5Department of Fisheries Biology and Genetics, Faculty of Fisheries, Hajee Mohammad Danesh Science and Technology University, Dinajpur, 5200, Bangladesh

6Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna, 9208, Bangladesh

*Corresponding Author Email : sa.mahfuz@gmail.com

 

 

Received: 14.11.2020                                                                   Revised: 17.03.2021                                                         Accepted: 16.04.2021

 

 

 

Abstract

Aim: Landmark-based truss network system was applied to examine the morphometric and meristic differences among four different populaces of Macrognathus aculeatus namely; Dhakuriabeel, Jashore (DBJ); Arial Kha River, Madaripur (AKRM); Nabaganga River, Jhenaidah (NRJ); Kopotakkha River, Jashore (KRJ) in Bangladesh.

Methodology: Completely 80 samples of M. aculeatus were collected (20 individuals from each population) for this study. Six meristic characters, 6 morphometric characters and 15 truss-based morphometric characters were measured for one-way analysis of variance (ANOVA) and Tukey-HSD post hoc test. Discriminant function analyses were also performed by using morphometric and truss-based morphometric characters to detect potential characters responsible for population separation.

Results: Completely 80 samples of M. aculeatus were collected (20 individuals from each population) for this study. Six meristic characters, 6 morphometric characters and 15 truss-based morphometric characters were measured for one-way analysis of variance (ANOVA) and Tukey-HSD post hoc test. Discriminant function analyses were also performed by using morphometric and truss-based morphometric characters to detect potential characters responsible for population separation.        

Interpretation: The baseline information derived from the present study would be useful for appropriate conservation of M. aculeatus populations as well as for the researchers for further investigation.      

Key words: Landmarks, Macrognathus aculeatus, Meristic variations,  Morphometric, Truss morphometrics

 

 

 

 

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