scholarly journals Evaluation of the Conditions of Mamberamo River Water with Biomass and Phytoplankton Community Approach

2021 ◽  
Vol 13 (1) ◽  
pp. 38
Author(s):  
Mirna Dwirastina ◽  
Dwi Atminarso
Keyword(s):  
Chlorophyll A ◽  
Phytoplankton Biomass ◽  
Phytoplankton Community ◽  
Nutrient Content ◽  
Coefficient Of Determination ◽  
Chemical Parameters ◽  
Phytoplankton Abundance ◽  
Community Approach ◽  
Phosphate Nitrate ◽  
Chlorophyll A Content

HighlightThe highest composition was Bacillariophyceae class and lowest was Cyanophyceae.Phytoplankton community abundance in waters is tightly related with nutrient content such as phosphate, nitrate, silicate, and other nutrients.Relation between abundance, biomass, and nutrients in Mamberamo river had the same pattern throughout February, May, and August in 2016.High biomass in an area related positively with phytoplankton abundance in its area.AbstractMemberamo River in Papua Province, that is a place of livelihood for the surrounding population, has a high biodiversity. This study aimed to provide information about the condition of the waters in the Mamberamo River by using biological and chemical parameters, namely community and phytoplankton biomass and chlorophyll-a content. The method used in determining the location was purposive random sampling based on differences in microhabitat that conducted in February, March, August, and October 2016. Phytoplankton observations were carried out through the method of sweeping Sediment Rafter (SR), and phytoplankton biomass obtained from chlorophyll-a. The results of this study showed three classes of phytoplankton were found, namely Bacillariophyceae, Chlorophyceae, and Cyanophyceae. The highest class of abundance was found in the river such as Bacillariophycea Chlorophyceae, and Cyanophyceae respectively. The chlorophyll-a concentration of phytoplankton biomass ranged from 2.01-548.73 mg/l and equation obtained from regression analysis between abundance and chlorophyll-a content was y = 1.2206 x – 0.7702 with a coefficient of determination r = 0.68. It could be concluded that the high phytoplankton biomass had a positive relationship with the chlorophyll-a content and the condition of the waters of the Mamberamo River is still categorized as good with good water fertility

scholarly journals RELATIONS OF SEVERAL PHYSICOCHEMICAL PARAMETERS AND PHYTOPLANKTON IN COASTAL KUBU RAYA DISTRICT, WEST KALIMANTAN

2018 ◽  
Vol 9 (2) ◽  
pp. 727-737
Author(s):  
Sri Endah Purnamaningtyas ◽  
Dimas Angga Hedianto ◽  
. Riswanto
Keyword(s):  
Water Quality ◽  
Chlorophyll A ◽  
Phytoplankton Biomass ◽  
Physicochemical Parameters ◽  
High Fertility ◽  
Chemical Parameters ◽  
Phytoplankton Abundance ◽  
High Concentration ◽  
West Kalimantan ◽  
The Relationship

This research was conducted in April, July and October 2013 at 8 (eight) stations: 1. Tj. Intan, 2. Tj. Tempurung, 3. Tj. Bunga Dalam, 4. Tj. Bunga dalam, 5. Tj. Burung, 6. P. Dabung, 7. Tasik Malaya, and 8. Tj. Harapan. This study aims to determine the relationship between several physic-chemical parameters and phytoplankton abundance. The results show the growth of phytoplankton biomass (chlorophyll a) was determined by high concentration of NH4 and NO3, while its growth is limited by turbidity (turbidity). Station that has high fertility in the Coastal District of Kubu Raya is Dabung Island. Keyword: water quality, chlorophyll a, coastal Kubu Raya district

Differences between Nearshore and Offshore Phytoplankton Communities in Lake Ontario

1987 ◽  
Vol 44 (12) ◽  
pp. 2155-2163 ◽  
Author(s):  
I. M. Gray
Keyword(s):  
Chlorophyll A ◽  
Phytoplankton Biomass ◽  
Algal Biomass ◽  
Phytoplankton Community ◽  
Seasonal Pattern ◽  
Principal Component ◽  
Lake Ontario ◽  
Dominant Group ◽  
Phytoplankton Communities ◽  
Eutrophic Species

Differences between nearshore and offshore phytoplankton biomass and composition were evident in Lake Ontario in 1982. Phytoplankton biomass was characterized by multiple peaks which ranged over three orders of magnitude. Perhaps as a consequence of the three times higher current velocities at the northshore station, phytoplankton biomass ranged from 0.09 to 9.00 g∙m−3 compared with 0.10 to 2.40 g∙m−3 for the midlake station. Bacillariophyceae was the dominant group at the northshore station until September when Cyanophyta contributed most to the biomass (83%). Although Bacillariophyceae was the principal component of the spring phytoplankton community at the midlake station, phytoflagellates (49%) and Chlorophyceae (25%) were responsible for summer biomass, with the Chlorophyceae expanding to 80% in the fall. The seasonal pattern of epilimnetic chlorophyll a correlated with temperature. While chlorophyll a concentrations were similar to values from 1970 and 1972, algal biomass had declined and a number of eutrophic species (Melosira binderana, Stephanodiscus tenuis, S. hantzschii var. pusilla, and S. alpinus) previously found were absent in 1982.

scholarly journals COMMUNITY STRUCTURE OF PHYTOPLANKTON AND CHLOROPHYLL-α CONCENTRATION IN THE SUNGAI MESJID VILLAGE DUMAI RIAU PROVINCE

2021 ◽  
Vol 4 (1) ◽  
pp. 80-87
Author(s):  
Rafiq Prima Nugraha ◽  
Irvina Nurrachmi ◽  
Sofyan Husein Siregar
Keyword(s):  
Chlorophyll A ◽  
Phytoplankton Community ◽  
Diversity Index ◽  
Survey Method ◽  
Phytoplankton Abundance ◽  
Dominance Index ◽  
Chlorophyll A Concentration ◽  
Quality Of Waters ◽  
Marine Station

The research was conducted in December 2019 at Sungai Mesjid Village Dumai Riau Province. This study aims were to know the condition of water quality, know the structure of the phytoplankton community, know the concentration of chlorophyll-a and know the effect between chlorophyll-a concentration and phytoplankton abundance in waters. The method used in this study was a survey method. The research location is divided into 3 station points namely Bangsal Aceh, Marine Station and Jalan Dermaga. The results showed that the quality of waters classified as oligotrophic waters. Phytoplankton found in this study consisted of 4 classes and 12 species of phytoplankton and the abundance of phytoplankton has a range between 195.57 - 244.33 ind./l. Diversity index (H') ranges from 1.2951 - 2.1705, dominance index (D) ranges from 0.24 to 0.46 and uniformity index (E) ranges from 0.7825 to 0.9551. The chlorophyll-a concentration in waters of Sungai Mesjid Village in Dumai ranged from 0.0025 to 0.0210 mg/L. Phytoplankton abundance and chlorophyll-a concentration has a moderate effect, wherewith increasing chlorophyll-a concentration, phytoplankton abundance will also increase

scholarly journals PRODUKTIVITAS PRIMER PERAIRAN BERDASARKAN KANDUNGAN KLOROFIL-a DAN KELIMPAHAN FITOPLANKTON DI MUARA SUNGAI BEDONO DEMAK

2018 ◽  
Vol 6 (3) ◽  
pp. 318-325
Author(s):  
Vida Febbrianna ◽  
Max Rudolf Muskananfola ◽  
Suryanti Suryanti
Keyword(s):  
Chlorophyll A ◽  
Primary Productivity ◽  
Fish Habitat ◽  
Coastal Region ◽  
Degradation Process ◽  
Northern Coast ◽  
Phytoplankton Abundance ◽  
Nursery Grounds ◽  
Chlorophyll A Content ◽  
Feeding Grounds

ABSTRAK Muara Sungai Bedono merupakan salah satu kawasan bermangrove yang terdapat di wilayah Pantai Utara Jawa Tengah. Wilayah ini telah mengalami proses degradasi berat oleh activitas gelombang dan kegiatan antropogenik yang berpengaruh terhadap erosi, akresi dan kesuburan perairan. Hal ini akan menggangu fungsi muara sungai  sebagai habitat ikan mencari makan (feeding grounds), daerah pemijahan (spawing grounds) dan daerah pengasuhan (nursery grounds). Tujuan dari penelitian ini adalah untuk mengetahui kesuburan perairan berdasarkan nilai produktivitas primer, kandungan klorofil-a dan kelimpahan fitoplankton. Penelitian dilaksanakan pada bulan Maret 2017 di Muara Sungai Bedono Kabupaten Demak. Metode yang digunakan adalah deskriptif. Lokasi sampling ditentukan tiga stasiun yaitu laut, muara bagian bawah dan tengah dengan 3 (tiga) kali pengulangan tiap stasiun pada kondisi pasang dan surut. Hasil penelitian menunjukan bahwa nilai produktivitas primer di Muara Sungai Bedono berkisar antara 425-1.650 mgC/m3/hari. Kandungan klorofil-a berkisar antara 0,07-0,45 mg/L dan kelimpahan fitoplankton berkisar antara 2.144-5.478 ind/l. Kesuburan perairan di Muara Sungai Bedono dikategorikan perairan Eutrofik ditinjau dari nilai produktivitas primer, Oligotrofik ditinjau dari kandungan klorofil-a dan Mesotrofik ditinjau dari nilai kelimpahan fitoplankton. Berdasarkan uraian tersebut kunci utama kesuburan perairan adalah produktivitas primer sehingga Muara Sungai Bedono dikategorikan perairan Eutrofik. Kata kunci: Produktivitas Primer; Kandungan Klorofil-a; Kelimpahan Fitoplankton; Muara Sungai Bedono, Demak ABSTRACT Bedono Estuary, which is located in Northern coast of central Java, is one of the coastal region inhabited with mangroves. This area has experienced heavy degradation process due to waves actions and antrophogenic activities that can affect erosion, accretion and costal water production. This will disturb the functions of estuary as fish habitat as well as feeding grounds, spawing grounds and nursery grounds. The purpose of this research to determine the fertility of waters based on the value of primary productivity, the content of chlorophyll-a and the abundance of phytoplankton. This research was conducted in March 2017 in the Bedono Demak Estuary. A descriptive method is applied in the analysis. Three stations are chosen as sampling locations: that are at the sea, lower and middle area of the estuary with three repetitions during high and low tides. The analysis results show that the value of primary productivity at the Bedono Demak Estuary ranges from 425 to 1.650 mgC/m3/day, chlorophyll-a content ranges from 0,07 to 0,45 mg/L, phytoplankton abundance ranges from 2.144 to 5.478 ind/L. Fertility waters at the Bedono Demak Estuary can be categorized as eutrophic based on the value of primary productivity, as oligotrophic based on chlorophyll-a content and Mesotrophic based on phytoplankton abundance. The results show that primary productivity is the key of fertility waters so that Bedono Demak Estuary can be categorized as eutrophic. Keywords:        Primary Productivity; Chlorophyll-a; Phytoplankton Abundance; Bedono Demak Estuary. 

scholarly journals Vertical distribution of chlorophyll <I>a</I> concentration and phytoplankton community composition from in situ fluorescence profiles: a first database for the global ocean

2015 ◽  
Vol 7 (2) ◽  
pp. 261-273 ◽  
Author(s):  
R. Sauzède ◽  
H. Lavigne ◽  
H. Claustre ◽  
J. Uitz ◽  
C. Schmechtig ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Chlorophyll A ◽  
Community Composition ◽  
Phytoplankton Biomass ◽  
Phytoplankton Community ◽  
Environmental Data ◽  
Global Ocean ◽  
Control Procedure ◽  
Chlorophyll A Concentration ◽  
Phytoplankton Community Composition

Abstract. In vivo chlorophyll a fluorescence is a proxy of chlorophyll a concentration, and is one of the most frequently measured biogeochemical properties in the ocean. Thousands of profiles are available from historical databases and the integration of fluorescence sensors to autonomous platforms has led to a significant increase of chlorophyll fluorescence profile acquisition. To our knowledge, this important source of environmental data has not yet been included in global analyses. A total of 268 127 chlorophyll fluorescence profiles from several databases as well as published and unpublished individual sources were compiled. Following a robust quality control procedure detailed in the present paper, about 49 000 chlorophyll fluorescence profiles were converted into phytoplankton biomass (i.e., chlorophyll a concentration) and size-based community composition (i.e., microphytoplankton, nanophytoplankton and picophytoplankton), using a method specifically developed to harmonize fluorescence profiles from diverse sources. The data span over 5 decades from 1958 to 2015, including observations from all major oceanic basins and all seasons, and depths ranging from the surface to a median maximum sampling depth of around 700 m. Global maps of chlorophyll a concentration and phytoplankton community composition are presented here for the first time. Monthly climatologies were computed for three of Longhurst's ecological provinces in order to exemplify the potential use of the data product. Original data sets (raw fluorescence profiles) as well as calibrated profiles of phytoplankton biomass and community composition are available on open access at PANGAEA, Data Publisher for Earth and Environmental Science. Raw fluorescence profiles: http://doi.pangaea.de/10.1594/PANGAEA.844212 and Phytoplankton biomass and community composition: http://doi.pangaea.de/10.1594/PANGAEA.844485

scholarly journals INTEGRATED MONITORING OF PHYTOPLANKTON IN A SHALLOW INLET OF PETER THE GREAT BAY (JAPAN SEA): DYNAMICS OF CHLOROPHYLL A AND NUTRIENTS

2020 ◽  
Vol 200 ◽  
pp. 141-154
Author(s):  
O. G. Shevchenko ◽  
K. O. Tevs ◽  
V. M. Shulkin
Keyword(s):  
Chlorophyll A ◽  
Seasonal Pattern ◽  
Peter The Great Bay ◽  
Japan Sea ◽  
Chemical Parameters ◽  
Phytoplankton Abundance ◽  
Integrated Monitoring ◽  
Chlorophyll A Concentration ◽  
Peter The Great ◽  
Great Bay

Species composition and abundance of phytoplankton, chlorophyll a concentration and chemical parameters were monitored at the coast of Russky Island in the Paris Bay, the shallow secondary inlet of Peter the Great Bay in 2014–2015. In total, 103 species and intraspecific taxa of microalgae from 4 classes are identified. Dynamics of phytoplankton abundance did not coincide with the dynamics of chlorophyll a concentration. The abundance varied from 1.3 . 103 cells/L to 1.9 . 106 cells/L and chlorophyll a concentration changed in the range 0.21–6.08 mg/dm3 . Nutrients had the following concentrations: DSi 0.7–41.8 µM/L, DIN 0.0–7.1 µM/L, DIP 0.0–0.7 µM/L. Dynamics of microalgae density had no common seasonal pattern in 2014 and 2015, though seasonal dynamics of chlorophyll a, as well as variations of nutrients and other water properties were similar in both years.

scholarly journals Spatial-temporal Variability of the Chlorophyll “a” Concentration in the Krasnodar Reservoir According to the Satellite Images’ Data

2021 ◽  
pp. 67-84
Author(s):  
Keyword(s):  
Chlorophyll A ◽  
Phytoplankton Biomass ◽  
Satellite Images ◽  
Nutrient Content ◽  
Water Area ◽  
Left Bank ◽  
Chl A ◽  
Delta Formation ◽  
Hydrodynamic Processes ◽  
The Relationship

The Krasnodar Reservoir has undergone significant transformations during its operation since 1973. As a result, of active delta formation of the Kuban and Belaya rivers, the reservoir was divided into two autonomous reservoirs, its area decreased by 35 %. The study is aimed at determining the significance of the eutrophication factor in the transformation of the Krasnodar Reservoir. Methods. Based on 51 Sentinel-2 satellite images for 2015–2020 the results of calculations of the concentration of chlorophyll «a» as an indicator of phytoplankton biomass in the reservoir are presented. The MSI sensor calculates the concentration of chlorophyll a (chl «a») based on the normalized chlorophyll difference index. Chl «a» estimates were obtained for a total area of 277 km2; the main bowl of the Krasnodar Reservoir and the Tshchik Reservoir, which was cut off from it. We have built maps reflecting the spatial and intra-annual variability of chl «a». Results The highest average concentrations of chl «a» are characteristic of the shallow upper part of the Krasnodar Reservoir, which is influenced by the runoff of the Kuban and Pshish rivers with an increased nutrient content. Locally high average values of chl «a» were recorded in the areas of the runoff current and in the estuaries of the left-bank tributaries. In the Tshchik water body with a low intensity of water exchange, the relationship between the concentration of chl «a» and hydrodynamic processes is not evident. We have revealed features of the annual cycle of phytoplankton biomass. It has been established that the trophic status of the reservoir is subject to seasonal variability: in spring, 2/3 of the water area correspond to eutrophic waters, 1/3 to mesotrophic waters; in autumn, the entire reservoir has a eutrophic status.

scholarly journals Vertical distribution of chlorophyll <i>a</i> concentration and phytoplankton community composition from in situ fluorescence profiles: a first database for the global ocean

2015 ◽  
Vol 8 (1) ◽  
pp. 365-399
Author(s):  
R. Sauzède ◽  
H. Lavigne ◽  
H. Claustre ◽  
J. Uitz ◽  
C. Schmechtig ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Chlorophyll A ◽  
Community Composition ◽  
Phytoplankton Biomass ◽  
Phytoplankton Community ◽  
Environmental Data ◽  
Global Ocean ◽  
Control Procedure ◽  
Chlorophyll A Concentration ◽  
Phytoplankton Community Composition

Abstract. In vivo chlorophyll a fluorescence is a proxy of chlorophyll a concentration, and is one of the most frequently measured biogeochemical properties in the ocean. Thousands of profiles are available from historical databases and the integration of fluorescence sensors to autonomous platforms led to a significant increase of chlorophyll fluorescence profile acquisition. To our knowledge, this important source of environmental data has not yet been included in global analyses. A total of 268 127 chlorophyll fluorescence profiles from several databases as well as published and unpublished individual sources were compiled. Following a robust quality control procedure detailed in the present paper, about 49 000 chlorophyll fluorescence profiles were converted in phytoplankton biomass (i.e. chlorophyll a concentration) and size-based community composition (i.e. microphytoplankton, nanophytoplankton and picophytoplankton), using a~method specifically developed to harmonize fluorescence profiles from diverse sources. The data span over five decades from 1958 to 2015, including observations from all major oceanic basins and all seasons, and depths ranging from surface to a median maximum sampling depth of around 700 m. Global maps of chlorophyll a concentration and phytoplankton community composition are presented here for the first time. Monthly climatologies were computed for three of Longhurst's ecological provinces in order to exemplify the potential use of the data product. Original data sets (raw fluorescence profiles) as well as calibrated profiles of phytoplankton biomass and community composition are available in open access at PANGAEA, Data Publisher for Earth and Environmental Science. Raw fluorescence profiles: http://doi.pangaea.de/10.1594/PANGAEA.844485.

scholarly journals Seasonal variation of biotic and abiotic parameters in parallel neotropical fishponds

2014 ◽  
Vol 74 (1) ◽  
pp. 166-174 ◽  
Author(s):  
LH Sipaúba-Tavares ◽  
LM Seto ◽  
RN Millan
Keyword(s):  
Water Quality ◽  
Phytoplankton Community ◽  
Similarity Analysis ◽  
Chemical Parameters ◽  
Abiotic Parameters ◽  
Physical And Chemical Parameters ◽  
One Year ◽  
Physical And Chemical ◽  
Chlorophyll A Content ◽  
Limnological Parameters

The present study was carried out to evaluate the phytoplankton community and water quality in four parallel fishponds (FP1 to FP4) during one year. Some abiotic parameters of water column and phytoplankton was sampled in four sites, one in each fishpond. Similarity analysis showed that FP2 fishpond was markedly different for the others ponds with regard to phytoplankton community. Conductivity, orthophosphate, temperature, TSS and hardness parameters were significantly different (p<0.05) between fishponds and all limnological parameters were significantly different (p<0.01) among period (months). Organic matter and phosphorus of the sediment were significantly different (p<0.01) only among fishponds. In current study Chlorophyceae and Bacillariophyceae occurred in most months. Cyanobacteria density in April and May was higher in all fishponds, at FP3 represented 71.4% in April and FP1 represented 78.7% in May of total reported, with chlorophyll-a content lower than 41 mg.L−1. The physical and chemical parameters of fishponds water constituted relations between the parameters and algae occurrence. The present study however, indicated that Cyanobacteria was more frequent in the fishponds after the fish grow-out period (April), and the water quality should be monitored more frequently in this period, due to the high total phosphorus, orthophosphate and chlorophyll-acontents.

Evaluation of Nutrient-Chlorophyll Relationships in the Rybinsk Reservoir

1993 ◽  
Vol 28 (6) ◽  
pp. 25-28 ◽  
Author(s):  
N. M. Mineeva
Keyword(s):  
Chlorophyll A ◽  
Rybinsk Reservoir ◽  
Nutrient Content ◽  
Phytoplankton Abundance ◽  
Weak Correlation ◽  
Nitrogen And Phosphorus ◽  
Ecological Conditions ◽  
Prediction And Control ◽  
And Control ◽  
The Rybinsk Reservoir

Our earlier study on the phytoplankton abundance and nutrient content in the Rybinsk Reservoir showed a weak correlation between chlorophyll a and nutrients. CHL:TP and CHL:TN ratios were used to quantitatively estimate the chlorophyll dependence on nitrogen and phosphorus. CHL:TP changed from 0.01 to 0.57 mg/mg in May-October 1981, 1982 and reached 1.46 in July 1989, CHL:TN ranged from 1-2 to 47 and to 56 mg/g, respectively. Variations of both indices through the ranges of CHL, TP, TN and TN:TP are given and their increment in eutrophic waters in comparison with mesotrophic ones is discussed. The present approach seems to be useful for the prediction and control of the eutrophication processes under the similar ecological conditions.

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