scholarly journals Occurrence of Protozoan Parasites From Climbing Perch, Anabas Testudineus From Open Waters of Bangladesh

2020 ◽  
Vol 48 (1) ◽  
pp. 127-140
Author(s):  
Fatima Nahar Kabita ◽  
Md Aminul Islam Bhuiyan ◽  
Zannatun Nahar Jhinu ◽  
Rita Parveen
Keyword(s):  
Fish Species ◽  
Diversity Index ◽  
Parasitic Infection ◽  
Parasite Community ◽  
Protozoan Parasites ◽  
Dominant Group ◽  
Anabas Testudineus ◽  
Climbing Perch ◽  
Freshwater Bodies ◽  
Study Sites

The study was conducted to identify the protozoan parasites and to determine their occurrence and diversity in climbing perch, Anabas testudineus (Bloch, 1972). The sample fish species were collected from mid-October, 2018 to end of the December 2018 from freshwater bodies of Mymensingh, Kishoregonj, Faridpur and Jashore districts. Three species of myxozoa (Henneguya mystusia, Henneguya qadrii and Henneguya acerinae) and 4species of ciliophora (Trichodina acuta, Trichodina spp., Epistylis lwoffi and Amphileptus disciformis) were identified in A. testudineus. Approximately 76.19% of total fish species were infected by at least one of the parasites with average load of 71.38±32.26 per infected host. Myxozoans (97.55%) were clearly dominant group than chiliophorans (2.45%). The highest prevalence of parasitic infection was observed in the fishes of Mymensingh (100%) and lowest in Jashore (40%).The association of parasitic infection of H. mystusia (p=0.018), H. qadrii (p= 0.00044), H. acerinae (p=0.003), Trichodina acuta (p= 0.052)and A. disciformis (p= 0.023) with study area was statistically significant. Protozoan parasites were most abundant in gills of the hosts. Shannon Diversity Index indicated that hosts were not infested by more parasites and the parasite community was poorly diverged in all study sites but Simpson’s Diversity Index showed that, parasites community was moderately diverged in host fish of Mymensingh area and in rest of areas they were poorly diverged. Bangladesh J. Zool. 48(1): 127-140, 2020

scholarly journals Occurrence of Protozoan Parasites of Channa Punctatus in Bangladesh

2021 ◽  
Vol 46 (1) ◽  
pp. 13-25
Author(s):  
Fatima Nahar Kabita ◽  
Md Aminul Islam Bhuiyan ◽  
Zannatun Nahar Jhinu ◽  
Rita Parveen
Keyword(s):  
Diversity Index ◽  
Parasitic Infection ◽  
Parasite Community ◽  
Channa Punctatus ◽  
Infected Host ◽  
Fish Sample ◽  
Protozoan Parasites ◽  
Shannon Diversity ◽  
Study Sites ◽  
Host Fishes

Three species of myxozoa (Henneguya chaudhuryi, Henneguya bengalensis and Myxobolus sp.) and 3 species of ciliophora (Trichodina pediculus, Epistylis lwoffi and Apisoma piscicolum) and two actinosporean stages of myxoza were identified. Some 51.72% of total host fishes which were found infected with at least one of the above mentioned parasites with average load of 95.93±41.53 per infected host. High percentage (98.05) of C. punctatus possessed myxozoan infection and 1.95 had chiliophoran infection. The highest prevalence of parasitic infection was observed in host sample collected from Faridpur district and lowest (33.33%) in fish sample collected from Mymensingh. The association of parasitic infection of H. bengalensis and Myxobolus sp. with study areas was found statistically significant (p=0.024 and 0.049, respectively). Protozoan parasites were most abundant in gills of hosts. Shannon Diversity Index indicated that host fishes were not infested by more parasites and the parasite community was poorly diverged in all study sites. However, Simpson’s Diversity showed that, parasites community was moderately diverged in host fishes collected from Mymensingh district and in rest of the areas parasite community was poorly diverged. Asiat. Soc. Bangladesh, Sci. 46(1): 13-25, June 2020

scholarly journals Taxonomical Accounts of Protozoan Parasites of Climbing Perch, Anabas Testudineus in Bangladesh

2021 ◽  
Vol 49 (2) ◽  
pp. 331-345
Author(s):  
Md Aminul Islam Bhuiyan ◽  
Rita Parveen ◽  
Zannatun Nahar Jhinu ◽  
Abdul Jabber Hawlader
Keyword(s):  
Protozoan Parasites ◽  
Dominant Group ◽  
Host Fish ◽  
Anabas Testudineus ◽  
Air Breathing ◽  
Climbing Perch ◽  
Freshwater Bodies

The study was conducted to identify the protozoan parasites in a freshwater indigenous air breathing fish, Anabas testudineus. The host fish was collected during mid of the April 2018 to end of the March 2019 from freshwater bodies of Mymensingh, Kishoregonj, Faridpur, Jashore, Manikganj and Bogura districts of Bangladesh. Five species of phylum myxozoa namely Henneguya gigas, Henneguya mystusia, Henneguyaa cerinae, Henneguya periophthalmusi and Myxidium sp., three species of phylum ciliophora namely Amphileptus disciformis, Epistylisl woffi and Trichodina anabasi and one species of phylum mastigophora namely Trypanosoma anabasi were identified in A. testudineus. Myxozoans (97.55%) were clearly dominant group than chiliophorans (2.45%). Bangladesh J. Zool. 49 (2): 331-345, 2021

scholarly journals Comparative study of protozoan parasite communities between Anabas testudineus and Channa punctatus

2021 ◽  
Vol 30 (1) ◽  
pp. 23-34
Author(s):  
Md Aminul Islam Bhuiyan ◽  
Fatima Nahar Kabita ◽  
Zannatun Nahar Jhinu ◽  
Md Hamim Bhuiyan
Keyword(s):  
Parasitic Infection ◽  
Protozoan Parasite ◽  
Parasite Community ◽  
Diversity Indices ◽  
Channa Punctatus ◽  
Parasitic Infections ◽  
Dominant Group ◽  
Anabas Testudineus ◽  
Freshwater Bodies ◽  
Host Fishes

The study was conducted to determine the comparative occurrence of protozoan parasites of two host species- Anabas testudineus and Channa punctatus. The host fishes were collected from April, 2018 to March, 2019 from freshwater bodies of Mymensingh, Kishoreganj, Faridpur and Jashore districts of Bangladesh. Three species of myxozoa (Henneguya mystusia, Henneguya qadrii and Henneguya acerinae) and four genera/species of ciliophora (Trichodina acuta, Trichodina sp., Epistylis lwoffi and Amphileptus disciformis) in A. testudineus; three genera/species of myxozoa (Henneguya chaudhuryi, Henneguya bengalensis and Myxobolus sp.), three species of ciliophora (Trichodina pediculus, Epistylis lwoffi and Apisoma piscicolum) and a few actinosporean stage of myxoza in C. punctatus were identified. The prevalence of protozoan infections were found higher in A. testudineus (76.19%) compare to C. punctatus (51.72%). However, mean intensity was relatively higher in C. punctatus (95.93 ± 41.53) than that of A. testudineus (71.38 ± 32.26). Myxozoans were clearly dominant group in both hosts. Multiple parasitic infections were higher in A. testudineus. The highest parasitic infection was observed in Mymensingh (100%) and lowest in Jashore (40%) in A. testudineus, whereas it was highest in fish of Faridpur (100%) and lowest in Mymensingh (33.33%) in C. punctatus. Shannon Diversity Indices indicated that the parasite community was poorly diverged in both hosts of all study areas. However, Simpson’s Diversity revealed that, parasites community was moderately diverged in both hosts in Mymensingh and in other study areas they were poorly diverged. Dhaka Univ. J. Biol. Sci. 30(1): 23-34, 2021 (January)

scholarly journals SOME TRENDS IN FRESHWATER TROPICAL AQUACULTURE AND THEIR IMPACT ON STUDIES OF THE CLIMBING PERCH ANABAS TESTUDINEUS (ANABANTIDAE) REPRODUCTIVE BIOLOGY

Fisheries ◽  
2020 ◽  
Vol 2020 (4) ◽  
pp. 85-89
Author(s):  
Dmitry Zworykin
Keyword(s):  
Reproductive Biology ◽  
Fish Species ◽  
Applied Research ◽  
Tropical Fish ◽  
Native Fish ◽  
Turn Of The Millennium ◽  
Anabas Testudineus ◽  
Climbing Perch ◽  
Contemporary Science ◽  
Tropical Aquaculture

The dynamics of publication activities devoted to the climbing perch from 1969 to 2018 is analyzed. It is shown that sharp increases in the number of publications at the turn of the millennium coincide with changes in international and national strategies for tropical fish aquaculture, focusing on cultivation of fast-growing native fish species and small farms support. These programs have led to a surge in applied research and publications on the climbing perch, as one of the most promising species. Unfortunately, some of these papers have been published in journals that are unreliable according to the criteria of contemporary science and contain controversial conclusions. Certain consequences of these trends are noted and challenges outlined.

scholarly journals A Checklist on the Protozoan Parasites of Freshwater Fishes of Bangladesh

2020 ◽  
Vol 48 (1) ◽  
pp. 21-35
Author(s):  
Fatima Nahar Kabita ◽  
Md Aminul Islam Bhuiyan ◽  
Zannatun Nahar Jhinu
Keyword(s):  
Freshwater Fish ◽  
Fish Species ◽  
Parasitic Infection ◽  
Protozoan Parasite ◽  
Freshwater Fishes ◽  
Extensive Study ◽  
Parasitic Infestation ◽  
Protozoan Parasites ◽  
Freshwater Fish Species ◽  
Protozoan Infection

The current work has been proposed to accumulate baseline information regarding prevalence, diversity and distribution of the protozoan parasites found in the freshwater fishes of Bangladesh from its inception to 2019. This is an attempt to compile a baseline data on protozoan parasites of freshwater fishes in Bangladesh. A total of thirty four articles were reviewed whereas sixteen articles reported systematic, taxonomic and morphometric analysis of protozoan parasites, five articles described seasonal parasitic infestation in carp fishes including protozoan parasites, seven articles reported overall parasitic infestation along with protozoan infection, three articles described protozoan infection in consort with the histo-pathological analysis, one article revealed the occurrence of one protozoan parasite named Trypanosoma sp. and one study described monthly fluctuation of overall parasitic infection together with protozoan infestation. A number of thirty four freshwater fish species under nine orders in Bangladesh were retrieved on the mentioned articles and found 48 species of protozoan parasites under 19 genera. Noticeably, parasites under genus Trichodina was frequently found in the freshwater fish species. Most of the parasites were found from the gills (micro-habited) of the host fish. To sum up, from this compilation a primary database of protozoan parasites of freshwater fish species might be expected to establish that will be supportive for further extensive study. Bangladesh J. Zool. 48(1): 21-35, 2020

scholarly journals Fish species biodiversity of Dadin-Kowa reservoir: Current status

2021 ◽  
Vol 11 (2) ◽  
pp. 100-111
Author(s):  
Nazeef S ◽  
Ja’afar A ◽  
Abubakar KA ◽  
Kabiru M
Keyword(s):  
Fish Species ◽  
Diversity Index ◽  
Management Strategies ◽  
Current Status ◽  
Aquatic Resources ◽  
Resources Management ◽  
As Species ◽  
The Family ◽  
Aquatic Resources Management ◽  
Study Sites

The fish composition of the three study sites of the reservoir were studied over a period of fifteen months (January, 2020 – March, 2021). A total of twenty-eight (28) fish species emanating from fourteen (14) families were obtained. The family Cichlidae was the dominant family with Oreochromis niloticus being the most abundant fish species while family Malapteruridae was the least with only 0.088% of the total abundance. Biodiversity indices of the study sites such as species richness ranges from 2.79-3.28, while species evenness ranged between 0.73 to 0.84, and diversity index revealed a range of 2.23-2.65. The Dadin-Kowa Reservoir has a rich ichthyofaunal composition which is facing challenges of structural collapse unless if management strategies are fully adopted. The host communities should be made integral components of aquatic resources management team. And other means of livelihood should be made attractive to reduce pressure on aquatic resources and deter possible biodiversity depressions.

Analisis Keragaman Tanaman Sebagai Jasa Lingkungan Pada Lanskap Agroforestri di Daerah Aliran Sungai Krueng Aceh

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Zulkifli Aiyub Kadir ◽  
Bahagia Bahagia
Keyword(s):  
Water Conservation ◽  
Vegetation Structure ◽  
Swot Analysis ◽  
Diversity Index ◽  
Middle Stream ◽  
Land Management System ◽  
Study Sites ◽  
Aleurites Moluccana ◽  
Lansium Domesticum ◽  
Agroforestry Practices

<p>Humans have utilized landscape for  produces a diverse character of the wider area of the watershed. Agroforestry is a land management system in addressing the problems that arise due to changes in land use of soil and water conservation. The aim of the study was to analyze plant diversity in agroforestry practices that have services in the Krueng watershed landscape in Aceh watershed. Develop strategies in the Krueng Aceh DAS agroforestry service. This research was conducted in the upper, middle and downstream of the Krueng Aceh watershed, with a rapid method of Agro-Biodiversity Appraisal and SWOT. The results showed that the composition of the vegetation structure found in the study sites tended to vary with the diversity index of agroforestry that was currently in the upstream and middle of the Krueng Aceh watershed. Based on SWOT analysis, internal scores are 2.45 and external scores are 3.21. Agroforestry practices in the upper stream of Krueng Aceh watershed were dominated by <em>Aleurites moluccana</em>, <em>Areca cathecu</em>, and  <em>Averrhoa bilimbi</em> L  species with the highest INP in the upper stream of Krueng Aceh watershed. Vegetation at the middle stream of Krueng Aceh watershed dominated by <em>Areca cathecu,</em> <em>Lansium domesticum</em> and Musa<em> paradisiaca</em>.  </p>

Carabidae of Barnaul city parks: ecological characteristics and species composition

2018 ◽  
Vol 8 (2) ◽  
pp. 348-353
Author(s):  
E. A. Kuchina ◽  
N. D. Ovcharenko ◽  
L. D. Vasileva
Keyword(s):  
Species Composition ◽  
Diversity Index ◽  
Similarity Index ◽  
Life Forms ◽  
Ground Beetles ◽  
Forest Steppe ◽  
Ecological Groups ◽  
Dominant Group ◽  
Species Diversity Index ◽  
Steppe Species

<p>Anthropogenic impact on the population of ground beetles leads to a change in their numbers, structure of dominance, density, species composition, spectrum of life forms. This makes the beetles Carabidae a convenient and informative bioindicator of the ecological state of biocenoses. The material for this work was the Carabidae collections conducted in June-August 2016-2017 in the park zone of different regions of Barnaul, differing in location, area, hydrological regime, vegetation cover, purpose and anthropogenic load. When processing the material, the quantitative, species and generic composition of the carabidae was determined, calculations were made for such indicators as the Berger-Parker dominance index, the Shannon species diversity index (Hs), and the Jacquard species similarity index. The fauna (Coleoptera, Carabidae) of the park zone of Barnaul is represented by 55 species belonging to 20 genera. The dominant group is represented by species belonging to steppe, forest and polyzonal groups. Forest-steppe species of ground beetles as dominants have not been identified in any of the investigated territories. The greatest variety of ecological groups was noted on the territory of the Yubileyny рark, which is explained by the presence of zones with various microclimatic conditions, the presence of a birch grove that flows through the park with the Pivovarka River, and a wide log in the park. Registered species belong to eight groups of life forms belonging to two classes - zoophagous and myxophytophagous. On the numerical and species abundance, zoophages predominate. The spectrum of life forms corresponds to the zonal spectrum characteristic of the forest-steppe zone.</p><p> </p>

Linking fish and crustacean taxonomic composition with seasonal contrasts in the soft-bottom intertidal zone

2020 ◽  
Author(s):  
M. A. Gondal ◽  
S. Iqbal ◽  
U. Atique ◽  
N. U. Saher ◽  
N. A. Qureshi ◽  
...  
Keyword(s):  
Species Richness ◽  
Water Temperature ◽  
Fish Species ◽  
Diversity Index ◽  
Taxonomic Composition ◽  
Primary Objective ◽  
Negative Effect ◽  
Fish Species Composition ◽  
One Year ◽  
Sw Monsoon

Abstract The primary objective of this study was to investigate the seasonal fish and crustacean variations concerning taxonomic composition, species richness, and diversity in sandy beach habitat. For this purpose, we investigated the Sonmiani Hor lagoon area during four distinct seasons, i.e., northeast (NE) monsoon, pre-monsoon, south-west (SW) monsoon, and post-monsoon for one year. During each haul, the net was pulled about 100m along the beach in 0.5m depth. The results showed a strong linear correlation between the diversity index and equitability in fishes (r = 0.978). The diversity index was strong negatively correlated with the abundance and biomass (r = -0.978, -0.972, respectively). The physical attributes like sea surface water temperature and salinity showed a strong negative effect on species assemblages (r = -0.981 and -0.943, respectively). The mean air and water temperature illustrated approximately 3°C difference during NE and pre-monsoon seasons. However, salinity, pH, and electrical conductivity did not show any significant seasonal variabilities. Under the ecological indices, the fish species displayed higher diversity (H’ = 3.19) during SW monsoon, whereas the lowest diversity was observed during pre-monsoon (H’ = 1.58). The equitability and species richness, however, remained more noticeable during SW monsoon (J’ = 0.81). The total number of individuals of fish and crustaceans reached 4799 with 3813 fish individuals and 986 individuals of crustaceans. A total of 27 families of fish while five crustacean families comprising of 30 genera and 38 fish species while ten genera and 17 species of crustaceans were recorded. Liza subviridis displayed the highest abundance among the sampled fish species. In conclusion, fish species constituted a significant part of the coastal fauna in the study area. The seasonal variations displayed distinct variations in fish species composition and diversity.

Study on Composition of Zoobenthos in Coastal Areas, Thai Binh Province

2017 ◽  
Vol 33 (4) ◽  
Author(s):  
Ngo Xuan Nam
Keyword(s):  
Diversity Index ◽  
Coastal Areas ◽  
Study Sites

The zoobenthos samples were collected in 30 collecting sections from 02nd to 13th June and from 02nd to 13th October 2014. Investigation of species compositon of zoobenthos in coastal areas, Thai Binh province was identified 72 species belonging to 56 genera of 33 families, 14 orders, 4 classes (Gastropoda, Bivalvia, Crustacea, Polychaeta), 3 phyla (Mollusca, Arthropoda, Annelida). In particular, Mollusca was by far the most popular with 46 species, accounting for roughly 63.8%, compared to the figure of Arthropoda was 23 species, occupying approximately 31.9%, Annelida was 3 species, occupying approximately 4.3%. The density of zoobenthos at the sampling sites averaged from 17 to 420 individuals/m2. The Shannon-Weiner (H') diversity index at the study sites averaged from 2.13 to 3.63.

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