scholarly journals Effect of water parameters on temporal distribution and abundance of zooplankton at Kaptai lake reservoir, Rangamati, Bangladesh

2018 ◽  
Vol 4 (4) ◽  
pp. 389-399
Author(s):  
Md Anowarul Haque ◽  
Md Rashed Un Nabi ◽  
Md Masum Billah ◽  
Abdulla Al Asif ◽  
Mohammed Rezowan ◽  
...  
Keyword(s):  
Fish Larvae ◽  
Diversity Index ◽  
Temporal Distribution ◽  
Seasonal Abundance ◽  
Water Parameters ◽  
Wiener Diversity Index ◽  
Physico Chemical ◽  
Water Ph ◽  
Chemical Conditions ◽  
Richness Index

Seasonal abundance of zooplankton in relation to different physico-chemical conditions of Kaptai lake has been studied. A total of four major groups of zooplankton were identified from study area of Kaptai lake during three seasons observation at pre-monsoon, monsoon and Post-monsoon. These four groups were categorized into rotifers, copepods, cladocerans and others (fish larvae, shrimp larvae, insects, mosquito larvae etc.). The mean abundance of group rotifers, copepods, cladoceras and others were 103, 84.67, 38.33 and 41.83 ind. L-1 respectively. The highest group was rotifers in terms of abundance and composition where compositions were recorded 38 % at three season’s observation. The lowest group was cladoceras in term of abundance and composition where compositions were recorded 14 %. The air temperature, water temperature, transparency, water pH, DO, BOD5, PO4-P, NO2-N, SiO3-Si, TSS, TDS, Alkalinity ranged between 21 and 27.50C, 23.5 and 31.50C, 0.8 and 3 m, 7.1 and 7.5, 5.72 and 8.58 mg/l, 8.55 and 12.87 mg/l, 3.22 and 4.13 μg/l, 0.992 and 1.19 μg/l, 161.18 and 201.15 μg/l, 0.28 and 0.48 g/l, 0.18 and 0.68 g/l, 40 and 60 ppm, respectively. Margalef richness index (d), Pielou’s evenness index (J'), Shannon-Wiener diversity index (H'), Simpson dominance index (λ) are analyzed by Primer V6 software to quantify the collected species. Through same software SIMPER, Cluster analysis also done to compare similarity between season. Asian J. Med. Biol. Res. December 2018, 4(4): 389-399

scholarly journals Seasonal influence of physicochemical parameters on phytoplankton diversity and assemblage pattern in Kailash Khal, a tropical wetland, Sundarbans, India

2019 ◽  
Vol 9 (7) ◽  
Author(s):  
Pranab Gogoi ◽  
Archana Sinha ◽  
Soma Das Sarkar ◽  
Thangjam Nirupada Chanu ◽  
Anil Kumar Yadav ◽  
...  
Keyword(s):  
Physicochemical Parameters ◽  
Diversity Index ◽  
Specific Conductivity ◽  
Seasonal Abundance ◽  
Total Hardness ◽  
Phytoplankton Diversity ◽  
Wiener Diversity Index ◽  
Algal Groups ◽  
Richness Index ◽  
One Way Anova

Abstract Studies were carried out from April 2016 to March 2017 for effective understanding of diversity combined with environment-influenced spatiotemporal dynamics of microfloral structure in Kailash Khal wetland of Indian Sundarbans. A total of 36 phytoplankton genera were recorded from the study area. Eight major algal groups were in order of: Bacillariophyceae > Cyanophyceae > Chlorophyceae > Coscinodiscophyceae > Xanthophyceae > Euglenophyceae > Conjugatophyceae > Mediophyceae with respect to their quantitative abundance. Mean seasonal abundance was found highest in pre-monsoon (4.32 × 103 cells l−1) followed by post-monsoon (3.88 × 103 cells l−1) and monsoon (1.96 × 103 cells l−1). One-way ANOVA showed that seasonal difference in physicochemical parameters was statistically significant for temperature, DO, specific conductivity, TA, TS, Ca++, nitrate, transparency, salinity, TH, turbidity, Mg++ and phosphate (p < 0.05). pH, temperature, total hardness, TDS nitrate, phosphate and silicate showed a close affinity with the distribution of phytoplankton community as evident from canonical correspondence analysis. Margalef richness index (3.121–3.774) and Shannon–Wiener diversity index (2.730–2.939) indicated moderately rich phytoplankton diversity in the wetland ecosystem.

scholarly journals Zooplankton Diversity in Relation to Physico-Chemical Parameters in Subtropical Pond of Jammu, Jammu and Kashmir, India

2019 ◽  
Vol 16 (2) ◽  
pp. 425-439
Author(s):  
Arti Sharma ◽  
Meenu Sharma
Keyword(s):  
Diversity Index ◽  
Mesh Size ◽  
Diversity Indices ◽  
Chemical Parameters ◽  
Jammu And Kashmir ◽  
Water Parameters ◽  
Silk Cloth ◽  
Wiener Diversity Index ◽  
Physico Chemical ◽  
Taxonomic Groups

The study aim to investigate the zooplankton diversity in relation to physico-chemical parameters of surface water in Barnai pond of Jammu district. Water parameters were analysed by following various standard methods, where as zooplankton were collected through the plankton net of standard bolting silk cloth no. 25 (mesh size 0.003-0.004 μm) and the total number of zooplankton was counted by using Drop count method. Statistical analysis of data involves Pearson’s Correlation analysis and various diversity indices viz; Shannon-Wiener diversity index (H´), Simpson’s Index (D), Margalef’s Index (d´) and Pielou’s Evenness (J). A total of 38 zooplankton taxa along with Nauplius larvae were observed belonging to 5 major taxonomic groups: Protozoa (6 species), Rotifera (21species), Cladocera (6 species), Copepoda (3 species) and Ostracoda (2species). Physico-chemical parameters of Barnai pond revealed well marked fluctuations with maxima and minima values of each parameter during specific seasons and zooplankton analysis revealed seasonal variations with an increase during summer and a fall during winter and monsoon seasons.

scholarly journals Macro benthic fauna in relation to limnological variables in a migratory bird visiting lake at Jahangirnagar University, Bangladesh

2018 ◽  
Vol 4 (2) ◽  
pp. 99-106
Author(s):  
S Sharmin ◽  
SH Rahman ◽  
MN Naser ◽  
S Hoque
Keyword(s):  
Water Temperature ◽  
Diversity Index ◽  
Winter Season ◽  
Benthic Fauna ◽  
Migratory Bird ◽  
Soil Parameters ◽  
Benthic Organisms ◽  
Wiener Diversity Index ◽  
Water Ph ◽  
Temperature Water

The abundance of macro benthic organisms was observed from a migratory bird visiting lake in Jahangirnagar University, Savar for a period from July 2016 to June 2017. A total of 22 species belonging to three phyla (viz. Mollusca, Annelida and Arthropoda) and 14 families was recorded with maximum abundance in summer season and minimum in winter season. Molluscan population (37%) was dominant in benthos, followed by Annelida (31%) and Arthropoda (28%). Average values of water temperature, dissolved oxygen and water pH were within standard permissible ranges in the aquatic habitats of the country. Water and soil parameters were in suitable ranges for the growth and abundance of benthos. Correlation indicated that Mollusca and Annelida were closely dependent on water temperature, water pH, water depth, soil organic carbon and soil organic matters, whereas Arthropoda had less dependency on them. In the present study lower Shanon-Wiener diversity index (2.55-2.92) and low species richness (18-24) clearly demonstrated that the lake is moderately polluted. J. Biodivers. Conserv. Bioresour. Manag. 2018, 4(2): 99-106

scholarly journals Impact of heated waters on water quality and macroinvertebrate community in the Narew River (Poland)

2017 ◽  
Vol 12 (1) ◽  
pp. 190-199 ◽  
Author(s):  
Elzbieta Krolak ◽  
Krzysztof Lewandowski ◽  
Zbigniew Kasprzykowski
Keyword(s):  
Diversity Index ◽  
Individual Characteristics ◽  
Macroinvertebrate Community ◽  
Water Parameters ◽  
Power Stations ◽  
Wiener Diversity Index ◽  
The Individual ◽  
The Impact ◽  
Dikerogammarus Haemobaphes ◽  
Sinanodonta Woodiana

AbstractThe effect of heated waters from coal-burning power stations on the water parameters and the occurrence of macroinvertebrates depends on the individual characteristics of the river to which the heated waters are discharged. The objective of the study was to assess the impact of heated water from the Ostrołęka Power Station on selected water properties and the macroinvertebrate community in the Narew River. Samples were collected in years: 2013-2016 along two river stretches: upstream and downstream of the canal. The water temperature was higher and the oxygen concentrations were lower at the downstream sites compared to the upstream sites of the canal. The values of conductivity, concentrations of nitrates, phosphates, chlorides and calcium were similar at the sampling sites. A total of 33 families of macrozoobenthos were found. The numbers of families were positively correlated with the temperature and conductivity and negatively correlated with oxygen. The heated waters were found to have no effect on the Shannon-Wiener diversity index. The inflow of heated waters increased the percentage of Gammaridae, represented by species Dikerogammarus haemobaphes (Eichwald, 1841) and decreased the percentage of Chironomidae. The presence of the thermophilous bivalve Sinanodonta woodiana (Lea, 1934) was noted downstream of the canal.

Kepelbagaian Artropod dalam Tanaman Padi Tradisional di Batang Lupar, Sarawak

2014 ◽  
Vol 70 (6) ◽  
Author(s):  
Mohd Fitri Masarudin ◽  
Maisarah Mohamad Saad
Keyword(s):  
Insect Pests ◽  
Diversity Index ◽  
Analysis Data ◽  
Shannon Index ◽  
Rice Fields ◽  
Rice Varieties ◽  
Stages Of Growth ◽  
Wiener Diversity Index ◽  
Insect Predators ◽  
Richness Index

The diversity of arthropod consists of pests and predators in rice fields were contribute to the biological control of crop pests at different stages of growth. The rice fields in Batang Lupar, Sarawak has diverse ecological conditions as well as presence of arthropod too. The study in MARDI research plot Batang Lupar in Sri Aman, Sarawak had been done on traditional rice varieties, Bubuk, Bali and Mamut by using sweeping net. The entire specimens were sorted out and classified into the smallest possible taxa. Statistical analysis were analysed by using Shanon-wiener Diversity Index, Evenness Shannon Index and Margalef Richness Index. A total of 272 individual arthropods had been collected and it consists of 7 order, 18 families and 23 species. Among of that 3 species are spiders, 9 species are insect pests and 11 species are insect predators. Analysis data for the diversity of arthropod has shown that there were no significantly different between three varieties, Bubuk, Bali and Mamut (P > 0.05). Besides that, diversity of the arthropod in Bali is higher than Bubuk and Mamut. 

Characteristics of Phytoplankton Community Structure and Evaluation of Trophic State of Water Body in Bosten Lake

2013 ◽  
Vol 864-867 ◽  
pp. 422-427 ◽  
Author(s):  
Xing Mu ◽  
Fang Wang ◽  
He Ying Sun ◽  
Li Min Chu ◽  
Jia Li Wang
Keyword(s):  
Community Structure ◽  
Water Body ◽  
Trophic State ◽  
Diversity Index ◽  
Bosten Lake ◽  
Wiener Diversity Index ◽  
State Of Water ◽  
Synedra Acus ◽  
The Mean ◽  
Richness Index

Bosten Lake was the largest inland freshwater lake in China. It is facing with a series of ecological problems nowadays. The phytoplankton and water samples of seventeen sampling sites in Bosten Lake were collected in September 2012. Results show that sixty-four species (genera) of phytoplankton, which belong to six phyla, are identified. The community structure of phytoplankton is dominated by Chlorophyta. The mean cell density of phytoplankton in whole lake is 8179.01×104cells·L-1 and Cyanophyta accounts for 94.71%. The dominant species are Chroococcus sp. and Synedra acus. In terms of Shannon-Wiener diversity index, Margalef richness index, Pielou evenness index and total nitrogen content, it is ascertained that trophic state of water body in Estuary and Pumping Station is between mesotrophication and eutrophication. While in the other districts, the water body is eutrophic. In addition, the eutrophic degree of water body in District IV is higher.

scholarly journals Structure and Distribution of Macrobenthos Community in Code River, Yogyakarta, Indonesia

2021 ◽  
Vol 2 (2) ◽  
pp. 21-27
Author(s):  
Ratih Ida Adharini ◽  
Putri Latifa Arumsari
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Diversity Index ◽  
Organic Matter Content ◽  
Matter Content ◽  
Quality Data ◽  
Water Quality Data ◽  
Wiener Diversity Index ◽  
Evenness Index ◽  
Water Ph

This research aimed to explore the community structure of macrobenthos in Code River, Yogyakarta. This research was conducted during December 2019-January 2020 in Code River, Yogyakarta. Data was taken 4 times in 6 stations. Macrobenthos was taken using a Surber net with a size of 30 x 30 cm and sampling at 5 spots in each station. Data analysis consisted of density, diversity index, dominance index, and evenness index. Water quality data consisted of water temperature, flow velocity, water depth, water pH, dissolved oxygen, and organic matter. The results showed that the density of macrobenthos ranged from 54-172 ind/m2. Our results showed that Code River has moderate diversity based on the Shannon-Wiener diversity index. Sulcospira testudinaria is the most dominant species in Code River. The evenness index showed high except at station 2 which was categorized as moderate. Code River has pretty good water quality, but stations 3, 4, and 5 which are located in the city area, it has a high organic matter content.

scholarly journals Spatial and temporal distribution of Culicoides species in the New England region of New South Wales, Australia between 1990 and 2018

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0249468
Author(s):  
Biniam T. Lakew ◽  
Adrian H. Nicholas ◽  
Stephen W. Walkden-Brown
Keyword(s):  
New England ◽  
Diversity Index ◽  
New South ◽  
New South Wales ◽  
Temporal Distribution ◽  
Abundant Species ◽  
Widespread Species ◽  
South Wales ◽  
Wiener Diversity Index ◽  
Evenness Indices

Culicoides are one of the smallest hematophagous flies measuring 1–5 mm in size with only females seeking blood for egg development. The present study investigated spatio-temporal distribution of Culicoides species trapped between 1990 and 2018 at 13 sites in the New England region of NSW, Australia using automated light traps. Trapping locations were divided into three subregions (tablelands, slopes and plains). Nineteen Culicoides species were identified. Culicoides marksi and C. austropalpalis were the most abundant and widespread species. Culicoides brevitarsis, the principal vector of livestock diseases in New South Wales comprised 2.9% of the total catch and was detected in 12 of the 13 locations in the study. Abundance as determined by Log10 Culicoides count per trapping event for the eight most abundant species did not vary significantly with season but trended towards higher counts in summer for C. marksi (P = 0.09) and C. austropalpalis (P = 0.05). Significant geographic variation in abundance was observed for C. marksi, C. austropalpalis and C. dycei with counts decreasing with increasing altitude from the plains to the slopes and tablelands. Culicoides victoriae exhibited the reverse trend in abundance (P = 0.08). Greater abundance during the warmer seasons and at lower altitudes for C. marksi and C. austropalpalis was indicative of temperature and rainfall dependence in this region with moderate summer dominance in rainfall. The Shannon-Wiener diversity index of species was higher on the tablelands (H = 1.59) than the slopes (H = 1.33) and plains (H = 1.08) with evenness indices of 0.62, 0.46 and 0.39 respectively. Culicoides species on the tablelands were more diverse than on the slopes and plains where C. marksi and C. austropalpalis dominated. The temporal and spatial variation in abundance, diversity and evenness of species reported in this diverse region of Australia provides additional insight into Culicoides as pests and disease vectors and may contribute to future modelling studies.

scholarly journals Herpetofauna community structure and distribution of Watu Joglo cave area, Gunung Kidul, Special Region of Yogyakarta

2020 ◽  
Vol 19 ◽  
pp. 00008
Author(s):  
Khadija Lung Ayu ◽  
Nishfi Laila Maghfiroh ◽  
Afghan Azka Falah ◽  
Muhammad Haekal ◽  
Alfonsus Toribio Eko Saputro ◽  
...  
Keyword(s):  
Community Structure ◽  
Diversity Index ◽  
Diversity Analysis ◽  
Data Sampling ◽  
Wiener Diversity Index ◽  
Evenness Index ◽  
Richness Index ◽  
Special Region

Watu Joglo is one of the caves located in the row of the Sewu mountains, Gunung Kidul, Special Regency of Yogyakarta. Watu Joglo has various suitable microhabitats for herpetofauna. So far, the study about herpetofauna’s community structure and distribution has not been carried out in Watu Joglo. This study aimed to study and map the diversity, richness, evenness, and distribution of herpetofauna in Watu Joglo. Herpetofauna’s data sampling was carried out for three days. The study was conducted on 6-8 April 2018. The data of herpetofauna community were analyzed with Shannon-Wiener diversity index, Margalef richness index, and Pielou Evenness Index. The data of herpetofauna distribution were mapped and analyzed with Avenza and ArcGis. Based on the research conducted, we found 11 species of herpetofauna which consisted of five species from Ordo Anura, four species from Subordo Lacertilia, and two species from Subordo Serpentes. Herpetofauna in Watu Joglo was widely distributed around the river. According to diversity analysis, Watu Joglo has moderate diversity index, 1.667. Besides, Watu Joglo has high evenness index which is 0.85 but low richness index which is 2.83.

scholarly journals Occurrence and diversity of microalgae in phytoplankton collected from freshwater community ponds of Hooghly District, West Bengal, India

2019 ◽  
Vol 6 (1) ◽  
pp. 8-16 ◽  
Author(s):  
Papiya Halder ◽  
Manojit Debnath ◽  
Samit Ray
Keyword(s):  
Light Intensity ◽  
West Bengal ◽  
Diversity Index ◽  
Winter Season ◽  
Late Summer ◽  
Diversity Indices ◽  
Chemical Parameters ◽  
Wiener Diversity Index ◽  
Physico Chemical ◽  
Multiple Variables

A study on diversity, seasonal occurrence, distribution percentage of microalgal taxa and physico-chemical parameters of five community ponds, located in Chinsurah town, Hooghly district of West Bengal, has been carried out. Correlation between occurrence of microalgal genera and some parameters of environment, physico-chemical nature of natural water bodies were explored by Canonical Correspondence Analysis (CCA). Diversity indices have been calculated using PAST software program. A total of 23 microalgal taxa belonging to four algal classes were recorded and the study indicated that the microalgal diversity vary with variation in physico-chemical parameters of water and light intensity. Out of these genera, occurrence of Chodatella sp. in late summer and Tetrallantos sp. and Synechocystis sp. in winter season were specific. In CCA, multiple variables (dissolved oxygen, water temperature, electrical conductivity, pH, light intensity and inorganic phosphorous) played a significant role in occurrence of microalgal taxa. Observation concluded that the Chlorophycean members were dominant throughout the study period and the Shannon–Wiener diversity index was highest for a site with large number of Chlorophycean member. This study will help in future to assess water quality.

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