scholarly journals Phytoplanktonic Diversity and Its Relation to Physico-chemical Parameters of Water at Dogarwada Ghat of River Narmada

2015 ◽  
Vol 10 (1) ◽  
pp. 206-214 ◽  
Author(s):  
Jyoti Sharma ◽  
Alka Parashar ◽  
Pratibha Bagare ◽  
Imtiyaz Qayoom
Keyword(s):  
Diversity Index ◽  
Temporal Distribution ◽  
Shannon Index ◽  
Madhya Pradesh ◽  
Spatial And Temporal Distribution ◽  
Simpson Index ◽  
Chemical Parameters ◽  
Positive Correlation ◽  
Physico Chemical ◽  
River Narmada

Present study was undertaken to assess the spatial and temporal distribution of phytoplanktons with respect to the changes in various physico-chemical parameters of Dongarwada ghat of river Narmada Madhya Pradesh. The study was carried for a year from March 2010 to February 2011.The results revealed presence of total of 27 taxa of phytoplanktons belonging to 4 families were found in order of Chlorophyceae (47%) >Cyanophyceae (27%) >Bacillariophyceae (23%)>Euglenophyceae (3%).Diversity parameters such as Shannon index ranged from 1.092-0.37, Simpson index from 0.6622-0.6202, evenness diversity index ranged from 0.9932 -0.7288 and Margelef index between 0.5459-0.2951.Various physico-chemical parameters of water analyzed depicted a positive correlation with diversity and distribution of Phytoplankton.

scholarly journals Abundance of zooplankton and physico-chemical parameters of a polyculture fish pond of Manikganj, Bangladesh

2015 ◽  
Vol 42 (1) ◽  
pp. 67-76 ◽  
Author(s):  
Pronob Kumar Mozumder ◽  
M Niamul Naser ◽  
Abu Tweb Abu Ahmed
Keyword(s):  
Negative Correlation ◽  
Total Hardness ◽  
Total Zooplankton ◽  
Chemical Parameters ◽  
Average Growth ◽  
Positive Correlation ◽  
Physico Chemical ◽  
Major Species ◽  
Varied Form ◽  
Dissolved O2

Composition and abundance of zooplankton in a polyculture pond was studied during June 2003 to May 2004. A total of 33 major species of zooplankton including 11genera of Rotifera, 4 of Copepoda, 4 genera of Cladocera and 2 genera of Protozoa were identified. The monthly abundance of zooplankton varied form 4228 indiv/l in October 2003 to169 indiv/l in January 2004. Among the total zooplankton, Rotifera comprised of 71.07%, Copepoda comprised of 12.49% Nauplii comprised of 11.96%, Cladocera comprised of 1.49% and Protozoa comprised of 2.99%. Water temperature (r = 0.18), free CO2 (r = 0.40), TDS (r = 0.14) and water depth (r = 0.55) showed positive correlation with zooplankton but air temperature, pH, dissolved O2, total hardness and ammonia showed negative correlation (the coefficients being -0.18, -0.05, -0.25, -0.38 and -0.11 respectively) with the occurrence of zooplankton. The average growth of fishes and zooplankton showed positive correlation in all cases but the relations were insignificant when tested statistically.Bangladesh J. Zool. 42(1): 67-76, 2014

scholarly journals Floristic composition, diversity and structure of Khaya senegalensis stands in Benue Department, Cameroon

2021 ◽  
Vol 8 (1) ◽  
pp. 60-68
Author(s):  
Awé Djongmo Victor ◽  
Noiha Noumi Valery Valery ◽  
Madou Chantal Chantal ◽  
Zapfack Louis
Keyword(s):  
Species Richness ◽  
Diversity Index ◽  
Basal Area ◽  
Shannon Index ◽  
Simpson Index ◽  
Importance Value Index ◽  
Importance Value ◽  
Acacia Senegal ◽  
Significant Difference ◽  
Khaya Senegalensis

The present work has been done to provide basic data for a better conservation and valorization ofKhaya senegalensis stands in Sudano-Sahelian zone of Cameroon. A 100 m x 50 m transectmethod was undertaken to measure floristic diversity through the use of species richness,Shannon index, Pielou equitability, Simpson index, importance value index and importance valuefamily. The vegetation structure is determined by density, basal area and biovolume. Theinventory included trees with a dbh ?10 cm on an area of 1 ha per plot. A total of 6743individuals distributed in 24 families, 33 genera and 54 species were inventoried in all Khayasenegalensis stands studied. Statistical analysis showed significant differences, Shannon index,Simpson index, Pielou equitability, density, basal area, biovolume, species richness, heights class,diameters class, circumferences class but does not certify a significant difference of importancevalue index among in the villages. The undergrowth of Khaya senegalensis stands is more diverseat Bamé with a Shannon diversity index (ISH=5.87 ± 0.12 bit). The greatest of Pielou equitabilityis observed at Bamé (EQ=0.80 ± 0.01). The largest of Simpson index is recorded at Bamé(D=0.098 ± 0.001). Khaya senegalensis Stands are denser at Bamé (194 ± 3.12 individuals/ha).The basal area and biovolume of Khaya senegalensis stands are very high at Bamé (BA=25.87 ±0.06 m2/ha and Biovolume =15.32 ± 0.012 m3/ha). The species importance value is maximal in allthe studied villages (SIV=300 ± 71.45). The importance value index of species revealed a cleardominance in the undergrowth of Khaya senegalensis stands are Combretum adenogonium;Acacia senegal; Terminalia laxiflora; Guiera senegalensis; Acacia nilotica; Entada Africana.The vertical structure has three aspects, like the L (Dbh), asymmetric (height) and dissymmetrical(circumference) structures attesting to a strong regeneration of the understory ligneous woods ofKhaya senegalensis stands studied.

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.

scholarly journals Keragaman dan Kelimpahan Plankton Sebagai Bioindikator Kualitas Lingkungan di Perairan Pantai Jayapura

2018 ◽  
Vol 8 (2) ◽  
Author(s):  
Dewi Sulistiowati ◽  
Rosye H.R. Tanjung ◽  
Daniel Lantang
Keyword(s):  
Water Quality ◽  
Diversity Index ◽  
Quality Standards ◽  
Biological Data ◽  
Chemical Parameters ◽  
Index Analysis ◽  
Size Number ◽  
Physico Chemical ◽  
Dry And Rainy Seasons

The aims of this research were to know the water environmental quality and to determine the diversity and abundance of plankton in Youtefa and Yos Sudarso Bay. The Sampling was conducted from October 2012 to January 2013 at two observation stations of Youtefa Bay and four observation stations of Yos Sudarso Bay during the dry and rainy seasons. The Sampling of plankton in each observation stations were made horizontally using a plankton net size number of 25. Biological data are determined using diversity index, uniformity index, dominance index and abundance calculations. Physico-chemical parameters were analyzed descriptively by comparing the result data of research with waters quality standards for marine’s biota based on decree of Environment Minister No. 51 year 2004. The results of water quality showed that in general, the quality of aquatic environment in Youtefa and Yos Sudarso Bay did not comply with water quality standards for marine’s biota issued by The Minister of Environment of Republic of Indonesia. While based on the diversity index analysis, water quality in Youtefa and Yos Sudarso Bay was categorized as a half polluted-heavily polluted. Diversity of plankton in Youtefa and Yos Sudarso Bay during the dry and rainy seasons was categorized as low-medium. Abundance of plankton in Youtefa and Yos Sudarso Bay was in low category. Key words: Abundance, diversity, plankton, Youtefa Bay, Yos Sudarso Bay.

scholarly journals Physico-chemical study of Moghat Reservoir at Khandwa, Madhya Pradesh

2013 ◽  
Vol 14 (3) ◽  
pp. 183-186
Author(s):  
Shail Joshi
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Chemical Study ◽  
Madhya Pradesh ◽  
Total Hardness ◽  
Biological Parameters ◽  
Chemical Parameters ◽  
Regular Monitoring ◽  
Physico Chemical ◽  
L Value

The present study has been carried out on Moghat Reservoir situated at Khandwa District of Madhya Pradesh. In the present study, the water samples were analyzed for various physico-chemical parameters like temperature,transparency, turbidity, TDS,  pH, Free CO2, total hardness, Ca hardness, Mg hardness, DO, BOD and COD on two different sites of the reservoir. During the course of study value of DO fluctuated between 6.04 mg/l to 8.58 mg/l. Value of BOD and COD fluctuated from 0.98 mg/l to 3.51 mg/l and 9.0mg/l to 12.3mg/l respctively. It was found that around all the parameters were more or less similar at both the sampling stations. The water quality was found suitable but it is strongly recommended that regular monitoring of the Moghat reservoir at Khandwa is very important as it is the major source of freshwater. Thus it is apparent that much attention should be paid on further studies of the physico-chemical and biological parameters of the Moghat reservoir

scholarly journals Elevation influence the macrofungi diversity and composition of Gunung Korbu, Perak, Malaysia

2020 ◽  
Vol 21 (4) ◽  
Author(s):  
Aqilah Bakray ◽  
S. NURJANNAH ◽  
S. SALLEH ◽  
Z. AHMAD FITRI ◽  
M. MOHD KHAIRUL FAIZI ◽  
...  
Keyword(s):  
Diversity Index ◽  
Good Condition ◽  
Shannon Index ◽  
Simpson Index ◽  
Sampling Area ◽  
Saprotrophic Fungi ◽  
Parasitic Fungi ◽  
Separation Pattern ◽  
Colour Changes ◽  
Main Factors

Abstract. Nur ‘Aqilah MB, NurJannah S, Salleh S, Thi BK, Ahmad Fitri Z, Mohd Khairul Faizi M, Haja Maideen KM, Nizam MS. 2020. Title. Biodiversitas 21: 1707-1713. Fructification of macrofungi depends on two main factors, abiotic and biotic. In this study, the main focus is to determine the macrofungi composition and diversity as the effect of elevation and substrate. Macrofungi collection was conducted at three different elevations along the trails (Trail A, B, and C) of Gunung Korbu in July 2019. The sampling area was divided by ascent elevation from the Seroja Camp to the Rimba Gate (Trail A, 796 m above sea level[a.s.l]), the Seroja Camp to the Kijang Camp (Trail B, 1092 m a.s.l) and the Kijang Camp to the summit of Gunung Korbu (Trail C, 2183 m a.s.l). The collected macrofungi were photographed, described based on their macroscopic characters and any colour changes when bruising or chemicals reactions were recorded. In total 90 macrofungi specimens were in good condition belonging to 6 families from 13 genera, including the unidentified. About 93.33% (84 specimens) of the collections are saprotrophic fungi and six parasitic fungi. Trail B recorded the highest diversity index of 2.20 and 0.87 for Shannon Index and Simpson index, respectively. Non-metric multidimensional scaling ordinations showed a clear separation pattern of macrofungi community found in three different trails, with most of the specimens found in Trail B.

scholarly journals Caractérisation de la flore phytoplanctonique dans l’Aire Marine Protégée (AMP) de Bamboung et de deux sites environnants (Sénégal)

2020 ◽  
Vol 14 (7) ◽  
pp. 2452-2462
Author(s):  
Ali Mohamed Abdou Salam ◽  
Ngansoumana Ba ◽  
Ismaïla Ndour ◽  
Seyni Sane ◽  
Modou Thiaw ◽  
...  
Keyword(s):  
Marine Protected Areas ◽  
Temporal Distribution ◽  
Sampling Period ◽  
Site Effect ◽  
Taxonomic Composition ◽  
Environmental Data ◽  
Chemical Parameters ◽  
Mots Clés ◽  
Physico Chemical

Au Sénégal, peu d’études sur le plan planctonique ont été réalisées pour l’évaluation de l’efficacité des Aires Marines Protégées. Dans cette perspective, la caractérisation de la flore phytoplanctonique et sa distribution spatio-temporelle à l’intérieur et à l’extérieur de l’AMP de Bamboung a été réalisée en avril et en septembre 2016. Des prélèvements d’échantillons d’eau à l’aide d’un filet à plancton de 20 μm de mailles ainsi que des mesures de paramètres physico-chimiques ont été faits dans chaque station. L’analyse des données environnementales a montré l’existence d’un effet intersaison avec des valeurs plus élevées en avril excepté la température. Par ailleurs, un effet d’inter-sites a été observé uniquement en septembre pour la température, la salinité, la conductivité et l’oxygène dissout. En termes de diversité phytoplanctonique, en avril, 49 espèces réparties dans 5 classes ont été identifiées dans l’AMP contre 47 espèces et 5 classes identifiées à Diomboss et 42 espèces et 5 classes à Sangako. En septembre, 57 espèces réparties dans 5 classes ont été répertoriées dans l’AMP contre 54 espèces et 4 classes à Diomboss, et 51 espèces réparties dans 4 classes identifiées à Sangako. Les résultats seuls de la richesse spécifique du phytoplancton ne permettent pas d’apporter une contribution sur l’évaluation de l’efficacité de l’AMP de Bamboung. Mots clés : Phytoplancton, dynamique, composition taxonomique, AMP, Bamboung.   English Title: Characterization of the phytoplankton flora in the Protected Marine Area (MPA) of Bamboung and two surrounding sites (Senegal) In Senegal, few planktonic data exist in the Marine Protected Areas (AMP). In this perspective, the characterization of phytoplankton flora and its spatial and temporal distribution within and outside the Bamboung AMP was carried out during in April and in september. Water samples were taken using a 20 μm mesh plankton net and measurements of physico-chemical parameters were made at each station. The analysis of environmental data showed the existence of an inter-site effect during the two-month sampling period. In April, 49 species in 5 classes were identified in the AMP, compared to 47 species and 5 classes identified in Diomboss and 42 species and 5 classes in Sangako. In september, 57 species distributed in 5 classes were recorded in the AMP compared to 54 species distributed in 4 classes in Diomboss and 51 species and 4 classes identified in Sangako. The results of the specific richness of phytoplankton alone do not make it possible to make a contribution to the evaluation of the effectiveness of Bamboung's MPA.Keywords: Phytoplankton, dynamics, taxonomic composition, AMP; Bamboung.

scholarly journals Spatial and temporal distribution of thermotolerant coliform in Canal de Passagem (Vitória - ES) - related to physico-chemical parameters and tide

2015 ◽  
Vol 63 (4) ◽  
pp. 423-428
Author(s):  
Mariana Magnago Alves ◽  
Gilberto Fonseca Barroso ◽  
Renato Rodrigues Neto
Keyword(s):  
Spring Tide ◽  
Temporal Distribution ◽  
Point Sources ◽  
Fecal Coliforms ◽  
Estuarine System ◽  
Chemical Parameters ◽  
Sources Of Pollution ◽  
Physico Chemical ◽  
Water Legislation ◽  
Thermotolerant Coliforms

Abstract The Canal de Passagem (CP), Vitória - ES, is an estuarine system undergoing a process of environmental degradation due to the discharge of in natura and semi-treated sewage. The surrounding local community's use of the estuarine resources conflicts with environmental quality and this offers risks to public health. The objective of this study was 1. to evaluate the distribution of fecal coliforms in the HCP (multiple tubes method), relating it to the distribution of sources of fecal pollution, the dynamics of the tides and physico-chemical parameters, and 2. evaluate the results in the light of the limits established by Brazilian legislation to ensure the health of the users of the water whatever the use to which it is put. Samples were taken spatially and temporally, to assess the tidal cycle of the spring tide in the winter, autumn and spring seasons, and also of the neap and spring tides at two sampling events in the summer. The sanitary parameters - thermotolerant coliforms, physico-chemical, and tidal action, were considered. Meaningful correlations were found with the tidal regime. As conclusion, that the distribution of thermotolerant coliforms was related to the point sources of pollution, and the concentrations were different between spring and neap tides. This difference between tides is not taken into consideration by the Brazilian Bathing Water Legislation up to now.

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

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