Bangladesh Journal of Zoology
https://www.banglajol.info/index.php/BJZ
<p>Bangladesh Journal of Zoology is an official scientific journal of the Zoological Society of Bangladesh published twice annually in June and December in English. Full Text articles now available.</p>Zoological Society of Bangladeshen-USBangladesh Journal of Zoology0304-9027Unveiling the Diverse Mammalian Species of a Tropical Rainforest in Northeast Bangladesh
https://www.banglajol.info/index.php/BJZ/article/view/70773
<p>Tropical rainforest supports an incredible diversity of mammalian species. The forest patches of northeast Bangladesh are considered hotspots for a range of threatened mammals. However, the transboundary Lathitila reserve forest in Moulvibazar district of northeast Bangladesh remained largely unexplored. We assessed the diversity of medium- and small-sized mammals using camera-trapping, and distance sampling, which was supplemented by sign survey and interviews. We recorded a total of 38 species of mammals belonging to 9 orders and 22 families. The Carnivora (34%) contained the highest number of mammals followed by Rodentia (21%), Primates (18%), Chiroptera (10%), and Artiodactyla (5%). Thirty seven percent of the recorded species were rare, followed by very common (26%), occasional (24%) and common (13%). Of these, 45% were categorized as threatened in the updated national Red List of IUCN Bangladesh. The remarkable species that we recorded are the Critically Endangered Asian elephant (<em>Elephas maximus</em>), Western hoolock gibbon (<em>Hoolock hoolock</em>), Chinese pangolin (<em>Manis pentadactyla</em>), Phayre’s leaf monkey (<em>Trachypithecus phayrei</em>), Northern pig-tailed macaque (<em>Macaca leonina</em>), and Bengal slow loris (<em>Nycticebus bengalensis</em>). The Endangered Fishing cat (<em>Prionailurus viverrinus</em>), and Asian small-clawed otter (<em>Aonyx cinerea</em>) were also recorded. The principal threats to the Lathitila forest are the habitat degradation, habitat fragmentation, human disturbance, illegal wood extraction, and wildlife poaching. This study highlights the conservation importance of this least-known forest, thereby protection measures are urgently needed to conserve its diverse mammalian fauna.</p> <p>Bangladesh J. Zool. 51(2): 135-154, 2023<strong><em> <br /></em></strong></p>Ameer HamzaMd Aminur RahmanMd Khurshed AlamMd Kamal HossainMd Rezaul Karim ChowdhuryM Abdul Aziz
Copyright (c) 2023 Bangladesh Journal of Zoology
2023-12-312023-12-3151213515410.3329/bjz.v51i2.70773Status of Fish Biodiversity in the Sindphana River Dam Near Shirur Kasar, District Beed, Maharashtra, India
https://www.banglajol.info/index.php/BJZ/article/view/69589
<p>Fish biodiversity studies were undertaken from January 2012 to December 2012 to census commercially important fishes in the Sindphana Dam. The present paper deals with the variety and abundance of freshwater fishes in the Sindphana Dam near Shirur Kasar Dist. Beed [M.S] India. The results of the present investigation reveal the occurrence of 44 fish species belonging to 7 orders, 15 families, and 26 genera. Among the collected species order Cypriniformes was most dominant constituting 50% followed by order Siluriformes constituting 18%, order Perciformesconstituting 18 %, orders Osteoglossiformesand Synbranchiformes constituting 5% and orders Mugiliformesand Beloniformes constituting 2 %of the total fish species. Fish biodiversity indices species richness 44 in the total number of species (N0), 3.73 in Margalef’s index (R1), and 0.97 in the Menhinick index (R2). Species diversity was 0.47 in the Simpson index (), 1.16 in the Shannon-Weiner index (H’<strong>)</strong>, 2.98 in abundant species (N1), and 2.80 in very abundant species (N2). Species evenness was 0.42 in (E1), 0.21 in (E2), 0.17 in (E3), 0.95 in (E4), and 0.97 in (E5).</p> <p>Bangladesh J. Zool. 51(2): 155-164, 2023</p> <p> </p>T S PathanS E Shinde
Copyright (c) 2023 Bangladesh Journal of Zoology
2023-12-312023-12-3151215516410.3329/bjz.v51i2.69589Icthyofaunal Diversity in Jagannath University New Campus Area, Keraniganj, Dhaka, Bangladesh
https://www.banglajol.info/index.php/BJZ/article/view/70776
<p>The study was carried out to know the ichthyofaunal diversity in Jagannath University new campus area from August 2020 to March 2021. A great variety of fish species were recorded from 15 diversified families. Among those, Cyprinidae was the most species-rich family, have 7 species. Total 29 fish species were identified; among them, the dominant order is Anabantiformes comprises of 9 species. Identified species mostly under least concern (20) category, <em>Channa marulius </em>(Hamilton, 1822) are the only endangered species, 1 species under vulnerable category, 4 species belong to near threatened. Three invasive species were recorded from this area, which is very alarming for native fish diversity. Gears and crafts were seen to: cast net, lift net, drag net, gill net, and chai, polo observed in the study area. Some pollution sources were also identified during the study period.</p> <p>Bangladesh J. Zool. 51(2): 165-173, 2023</p>Md AsaduzzamanDurjoy Raha AntuMd Sakhawat HossainM Samrat AkbarSajib BiswasGulshan Ara Latifa
Copyright (c) 2023 Bangladesh Journal of Zoology
2023-12-312023-12-3151216517310.3329/bjz.v51i2.70776Comparative Diurnal Activity Patterns of Merops Leschenaulti and Merops Orientalis at Chittagong University Campus, Bangladesh
https://www.banglajol.info/index.php/BJZ/article/view/70777
<p>A study was conducted on the diurnal activity patterns of chestnut-headed bee-eater (<em>Merops leschenaulti</em>) and green bee-eater (<em>Merops orientalis</em>) at Chittagong University Campus, Bangladesh in the year 2015. Six major activities (perching, flying, calling, feeding, diving, and preening) were recorded for both species during the study period. The two bee-eater species were observed to spend their maximum (<em>M. leschenaulti</em>: 37.63%; <em>M. orientalis</em>: 35.95%) time in perching, whereas the minimum time spent by <em>M. leschenaulti </em>was observed in diving (1.76%) and by <em>M. orientalis </em>was in feeding (2.17%). They were more active during 15:00 - 17:00 h (<em>M. leschenaulti</em>: 27.34%; <em>M. orientalis</em>: 27.23%) than other diurnal time blocks. Two species spent their highest (<em>M. leschenaulti</em>: 14.71%; <em>M. orientalis</em>: 14.00%) time performing different activities in June and the lowest (<em>M. leschenaulti</em>: 2.71%; <em>M. orientalis</em>: 3.46%) in January. Both bee-eaters were mostly (<em>M. leschenaulti</em>: 56.58%; <em>M. orientalis</em>: 53.07%) active in monsoon than in other seasons. The similar activity patterns between two bee-eater species could be influenced by similar lifestyles associated with their close taxonomic relationship. A number of ecological factors, such as temperature, humidity and precipitation could influence the daily, monthly and seasonal variations in activities.</p> <p>Bangladesh J. Zool. 51(2): 175-190, 2023 </p>Tanzina AlamMd Mizanur Rahman
Copyright (c) 2023 Bangladesh Journal of Zoology
2023-12-312023-12-3151217519010.3329/bjz.v51i2.70777Morphological Patterns of the Long Limb Bones in the Lesser Bandicoot Rat, Bandicota Bengalensis (Rodentia: Muridae)
https://www.banglajol.info/index.php/BJZ/article/view/70778
<p>We examined the morphological patterns of long limb bones in the Lesser Bandicoot rat (<em>Bandicota bengalensis</em>) using univariate, bivariate and multivariate statistical analyses. A total of 18 morphometric measurements were taken using 30 adult specimens (11 males and 19 females) of <em>B. bengalensis</em>. The univariate analysis revealed non-significant right-left difference in the longest limb bones. Therefore, right side limb bones were used for further analyses. For most of the limb bone measurements, the mean values of the males were slightly larger than that of the females. However, the coefficient of variation did not differ significantly between the sexes. Most measurements of the fore limb and hind limb bones were significantly correlated with the length of respective bones. Allometric analysis exhibited isometry for many of the variables of humerus, ulna, femur, and tibia against the length of respective bones. These trends were also implied by the principal component analysis, as high factor loadings were observed for 80% and 75% variables of the forelimb and hindlimb, respectively. The epicondylar regions of the stylopodial bones (humerus and femur) and the width of radius showed non-significant correlation and/or negative allometry. Finally, our results suggest slightly male-biased sexual size dimorphism in the long limb bones and the growth patterns of the bone parts are greatly variable might be linked to the individual bone functions.</p> <p>Bangladesh J. Zool. 51(2): 191-203, 2023</p>Antara DasPritom Roy Jadab Kumar Biswas
Copyright (c) 2023 Bangladesh Journal of Zoology
2023-12-312023-12-3151219120310.3329/bjz.v51i2.70778Evaluation of Anti-malarial Activity of Brassica Juncea, Glinus Oppositifolius, and Barringtonia Acutangular Against Plasmodium Falciparum Strain
https://www.banglajol.info/index.php/BJZ/article/view/70780
<p>Malaria, caused by the <em>Plasmodium </em>parasite, contributes to a significant global health burden that disproportionally affects those living in developing nations. The majority of cases are caused by the species <em>P. falciparum </em>and responsible for the a million deaths each year worldwide. The aim of the present study was to evaluate extracts of three indigenous medicinal plants- Raishorisha, <em>Brassica juncea; </em>Gimma shak, <em>Glinus oppositifolius </em>and Hijal, <em>Barringtonia acutangula In vitro </em>anti-plasmodial activities against the 3D7 laboratory strain of <em>Plasmodium falciparum, </em>which is sensitive to all drug was tested. HRP2 ELISA assay was used to evaluate the <em>in vitro </em>inhibitory activity of the extracts. Plant extracts showed moderate to good anti parasitic effects. Highly promising anti-plasmodial activity was found in the extract of <em>Brassica juncea</em>. 50% inhibitory concentration (IC50) 3D7: 0.00905 μg/ml (methanol extract), and <em>Glinus oppositifolius </em>had a good activity (IC50) 3D7: 13.8 μg/ml (methanol extract). A moderate activity (23.8 μg/ml) was found in the methanol extracts of <em>B. acutangula</em>. These results demonstrate that methanol extracts of <em>B. juncea </em>and <em>G. oppositifolius </em>may have antimalarial agents even in their crude form. The isolation of compounds from these two plants seems to be of special interest for further anti-malarial studies.</p> <p>Bangladesh J. Zool. 51(2): 205-216, 2023</p>Hamida Khanum Sadia Afrin
Copyright (c) 2023 Bangladesh Journal of Zoology
2023-12-312023-12-3151220521610.3329/bjz.v51i2.70780Parasitic Contamination of Street Food Samples From School-Based Food Vendors of Dhaka City, Bangladesh
https://www.banglajol.info/index.php/BJZ/article/view/70781
<p>Street food is an old notion that arose from the need of quick access of light food to satisfy hunger. With the mention of street food in Bangladesh, a picture is visualized which includes open stalls with uncovered food, unawareness of vendors about hygienic practices, lack of safe source of water for cleaning and preparing food, increasing pollution in surrounding environment leading to infestation with various parasites and causing diarrhoeal diseases in people. The aim of the present study was to determine the prevalence of parasites in school-based street foods in Dhaka city. A total of 200 food samples were examined containing three representative types of street foods: tamarind water of snacks (79 samples), sliced fruits (71 samples) and fruit juices (50 samples) using Formal-ether concentration technique. Among them, 164 (82%) samples were contaminated with <em>Entamoeba histolytica, Blastocystis hominis, Cystoisospora belli</em>, <em>Diphyllobothrium latum, Hymenolepis diminuta, Hymenolepis nana</em>, <em>Ascaris lumbricoides, Enterobius vermicularis, Trichuris trichiura </em>and <em>Ancylostoma duodenale</em>. <em>C. belli </em>was the most prevalent (38%), followed by <em>A. lumbricoides </em>(33%) and <em>B. hominis </em>(33%). While comparing the parasite prevalence in three types of street foods, the highest prevalence was observed for <em>C. belli </em>(21.5% in tamarind water of snacks, 6.5% in sliced fruits and 10% in fruit juices) followed by <em>A. lumbricoides</em>, <em>B. hominis </em>and <em>D. latum</em>. There were significant associations (p<0.05) among the different food types with <em>B. hominis, C. belli, D. latum and A. lumbricoides </em>positive samples. The study implicates that parasitic contamination of school-based street foods is alarming and it is urgent to take necessary steps to ensure the food safety.</p> <p>Bangladesh J. Zool. 51(2): 217-229, 2023 </p>Priyanka BaruaKrishna Sukonya BanikSharmila Saha Sharmin Musa
Copyright (c) 2023 Bangladesh Journal of Zoology
2023-12-312023-12-3151221722910.3329/bjz.v51i2.70781Animals and Ethics: How Much Do We Care?
https://www.banglajol.info/index.php/BJZ/article/view/70765
<p>Abstract not available</p> <p>Bangladesh J. Zool. 51(2): 133-134, 2023</p>Md Niamul Naser
Copyright (c) 2023 Bangladesh Journal of Zoology
2023-12-312023-12-3151213313410.3329/bjz.v51i2.70765