scholarly journals Analysis of primary productivity and trophic status of Kuala Gigieng waters Aceh Besar for sustainable fisheries management

2021 ◽  
Vol 869 (1) ◽  
pp. 012044
Author(s):  
N Nurfadillah ◽  
I Dewiyanti ◽  
M Yunus ◽  
S Mellisa ◽  
C Octavina
Keyword(s):  
Chlorophyll A ◽  
Fisheries Management ◽  
Primary Productivity ◽  
Trophic Status ◽  
Net Primary Productivity ◽  
Quality Parameters ◽  
High Fertility ◽  
Sustainable Fisheries ◽  
Method Analysis

Abstract Kuala Gigieng is one of the estuary areas in Aceh Besar Regency. This research is about the analysis of chlorophyll-a and trophic status of Kuala Gigieng waters in the context of sustainable fisheries management. This research was conducted in April 2019 in the water of Kuala Gigieng. This study aims to determine the trophic status of the waters, the value of chlorophyll-a and the abundance of phytoplankton in the Kuala Gigieng waters. Determination of observation stations using random stratified sampling method. Analysis of chlorophyll-a using the Trichomatic method. Analysis of the trophic status of the waters with the Trix method. The results showed that the waters of Kuala Gigieng were categorized as high fertility (eutrophic). The value of chlorophyll-a ranged from 0.21 u.g/l - 5.56 ug/l, and the value of net primary productivity (NPP) ranged from 3.47-27.77 mgC/m3/hour and the value of gross primary productivity (GPP) ranged from 5.20-32.98 mgC/m3/hour. Meanwhile, the abundance of plankton ranged from 133.33-207.40 ind/l. Water quality parameters are still suitable for the growth of plankton in Kuala Gigieng waters.

Correlation Analysis between Primary Productivity Factors and Water Environment Factors

2013 ◽  
Vol 448-453 ◽  
pp. 902-907
Author(s):  
Shih Chieh Chen ◽  
Chao Cheng Chung ◽  
Wen Liang Lai ◽  
Chung Yi Chung ◽  
Hwa Sheng Gau ◽  
...  
Keyword(s):  
Water Quality ◽  
Correlation Analysis ◽  
Chlorophyll A ◽  
Primary Productivity ◽  
Explanatory Power ◽  
Water Environment ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Canonical Variables ◽  
The Relationship

In this study, we use canonical correlation analysis to interpret the relationship between water quality parameters (T, Alk, Cl, EC, TN, TP, UV-254, pH, HPC, DO) and primary productivity parameters (algae and chlorophyll-a). In these two sets of constructed canonical variables, the water quality parameters can account for 39.25% of the total variance of primary productivity. The majority of the explanatory power is from the first set of canonical variables, which has a correlation coefficient of 0.84. The main factors that control chlorophyll-a are HPC, Alk, T, TN, and pH.

scholarly journals RELATIONSHIP OF NITRATE AND PHOSPHATE CONCENTRATION ON PHYTOPLANKTON PRIMARY PRODUCTIVITY IN DUMAI RIVERS OF RIAU PROVINCE

2021 ◽  
Vol 4 (1) ◽  
pp. 54-64
Author(s):  
Syafrizal ◽  
Irvina Nurrachmi ◽  
Efriyeldi Efriyeldi
Keyword(s):  
Primary Productivity ◽  
Net Primary Productivity ◽  
Phosphate Concentration ◽  
Coefficient Of Determination ◽  
Survey Method ◽  
Research Station ◽  
Mathematical Equation ◽  
Relationship Of ◽  
The Relationship

This research was conducted in January 2020 in the waters of the Sembilan Dumai River which aims to determine the concentration of nitrate and phosphate on the primary productivity of phytoplankton. The research method used in this research is the survey method while the determination of the research station was done by technic purposive sampling. The results showed that the average nitrate concentration ranged from 0.0194 - 0.0749 mg/l and the average phosphate concentration ranged from 0.1452 - 0.8502 mg/l. There are 6 classes of phytoplankton found in the waters of the Sembilan Dumai River, namely Bacillariophyceae, Cocinodiscophyceae, Chroococcophyceae, Cyanophyceae, Cyanobacteria and Xanthophyceae. The results of phytoplankton abundance calculations ranged from 74.07 - 280.09 Ind/L. The primary productivity value of phytoplankton for gross primary productivity ranged from 62.5 - 104.16 mgC/m2/jam, respiration values ​​ranged from 20.83 - 41.66 mgC/m2/jam and the net primary productivity value ranged from 41.67 - 72.91 mgC/m2/jam. The results of the multiple linear regression test for the relationship between nitrate and phosphate on the primary productivity of phytoplankton at each station are shown by the mathematical equation Y = 60.18 + (-233,19,35) x and Y = 60.18 + 30.44x with the coefficient of determination ( R2) = 0.140 and (R2) = 0.226 and the correlation coefficient (r) = 0.631, the mathematical equation states that the relationship between nitrate and phosphate on the primary productivity of phytoplankton is strong.

scholarly journals Trophic Status of the Dniester Delta Lakes in 2006-2017

2018 ◽  
Keyword(s):  
Chlorophyll A ◽  
Trophic State ◽  
Trophic Status ◽  
Physicochemical Characteristics ◽  
Nitrogen And Phosphorus ◽  
Trophic Index ◽  
Summer Time ◽  
First Time

Purpose. Assessment of trophic status of the Dniester deltaic part lakes (Bile, Svine, Tudorovo and Putrino) in 2006-2017. Methods. Determination of hydrological, hydrochemical and hydrobiological characteristics of the lakes aquatic environment has been performed using standard methodologies. Three indicators of eutrophication have been used: chlorophyll a concentration, number of bacterioplankton, trophic indices TSI and TRIX. Results. Peculiarities of physicochemical characteristics of water in the Dniester deltaic lakes have been analysed. Increased nutrients concentration has been revealed in all the lakes during past 12 years. The lowest oxygen content and oxygen saturation was established in water of the Putrino Lake, where at the same time the highest concentrations of total nitrogen and phosphorus were observed. Analysis of long-term changes of chlorophyll a and bacterioplankton has been done. Based on the lakes integrated study in summer time of 2006-2017, assessment of water trophic state has been for the first time performed for each deltaic lake. Statistical interrelations between trophic state indicators and physicochemical characteristics of the lakes have been revealed. Conclusions. It was established that the assessment of four deltaic lakes trophic status based on chlorophyll a, bacterioplankton and TSI trophic index practically coincided and evidenced increased of the lakes’ trophic status and decrease of water quality in 2012-2017 compared with previous years. All the eutrophication indicators in water of the lakes Svine, Tudorovo and Putrino during six last years corresponded to hypertrophic status, while in the Bile Lake most of eutrophication indicators were lower and corresponded to eutrophic status. Trophic index TRIX, which was developed for seawater assessment, practically always showed somewhat higher trophic status of the lakes than other indicators.

scholarly journals Primary Productivity of Jatigede Reservoirs in Sumedang, West Java

2020 ◽  
pp. 20-27
Author(s):  
Muthi’ah Atsari Hamiedah ◽  
Zahidah . ◽  
Heti Herawati ◽  
Isni Nurruhwati
Keyword(s):  
Carbon Dioxide ◽  
Power Generation ◽  
Chlorophyll A ◽  
Primary Productivity ◽  
Measurement Method ◽  
Quality Parameters ◽  
Raw Water ◽  
West Java ◽  
Water Power ◽  
Oligotrophic Water

Jatigede Reservoir is a reservoir located in Sumedang West Java which is built for irrigation, raw water, power generation, tourism, and capture fisheries. This research aims to determine the value of primary productivity as one of the indicators of the water body feasibility of the Jatigede reservoir to capture fisheries activities. The study was conducted in August – September 2019. Sampling is carried out at 4 stations on the surface, half the depth of compensation, and the depth of compensation. Estimation of primary productivity using chlorophyll-a concentration measurement method. The results of measurement of water quality parameters in the Jatigede reservoir include transparency range of 19,5 cm – 116,5 cm, temperature with a spread of 26,58 – 27,48oC, pH with a range of 7,69 – 8,40, carbon dioxide with a range of 4,190 mg/L – 9,219 mg/L, current ranges from 0.136 m/s – 0,216 m/s, BOD5 with a range of 11,027 dissolved oxygen ranges from 6,4 mg/L – 7,1 mg/L, ammonia ranges from 0,006 mg/L – 0,039 mg/L, nitrates ranged from 0,168 mg/L – 0,216 mg/L, and phosphate range 0,139 mg/L – 0,185 mg/L. Results from the measurement of chlorophyll-a ranged from 0,035 mg/L – 0,062 mg/L. This results in showing the Jatigede reservoir of oligotrophic water because the primary productivity in the waters of the Jatigede Reservoir is relatively low if calculated based on the concentration of chlorophyll-a.

scholarly journals Primary Productivity of Jatigede Reservoir Based on Light and Dark Bottle Method

2021 ◽  
pp. 1-9
Author(s):  
Firda N. Aquila ◽  
. Zahidah ◽  
Heti Herawati ◽  
Herman Hamdani
Keyword(s):  
Primary Productivity ◽  
Sampling Method ◽  
Oxygen Demand ◽  
Quality Parameters ◽  
Survey Method ◽  
Dark Bottle ◽  
Compensation Depth ◽  
Different Depths ◽  
Carbon Dioxide Co2

This research aims to determine the value of primary productivity by using light-dark bottles at different depths in Jatigede Reservoir, Sumedang, West Java. This research was conducted from October 2020 until March 2021 using survey method research. Determination of the research location was done by using the purposive sampling method. Sampling was carried out at five stations and three depths: surface, 0.5 compensation depth, and compensation depth. The results showed that the primary productivity in Jatigede Reservoir ranged from 300.29-1013.47 mgC/m3/day. The results of supporting water quality parameters are light transparency ranging from 38-150 cm, temperature ranging from 26.6-29.7 oC, pH ranging from 6.69-8.7, carbon dioxide (CO2) ranging from 4.4-22.0 mg/ l, dissolved oxygen (DO) ranged from 3.00–6.6 mg/l, Biochemical Oxygen Demand (BOD) ranged from 1.62-16.22 mg/l, ammonia ranged from 0.0004-0.0055 mg/l, nitrate ranged from 0.017-0.044 mg/l and phosphate ranged from 0.06-0.14 mg/l. Based on the value of primary productivity, the waters of the Jatigede Reservoir are categorized as mesotrophic waters.

scholarly journals Water parameters and primary productivity at four marine embayments of Costa Rica (2000-2002)

2018 ◽  
Vol 66 (1-1) ◽  
pp. 211
Author(s):  
José A. Vargas-Zamora ◽  
Jenaro Acuña-González ◽  
Jeffrey A. Sibaja-Cordero ◽  
Eddy H. Gómez-Ramírez ◽  
Grettel Agüero-Alfaro ◽  
...  
Keyword(s):  
Costa Rica ◽  
Oxygen Saturation ◽  
Chlorophyll A ◽  
Primary Productivity ◽  
Suspended Matter ◽  
Net Primary Productivity ◽  
Secchi Depth ◽  
Temporal And Spatial Distribution ◽  
Water Parameters ◽  
Gulf Of Nicoya

Abstract: The availability of baseline data on water parameters and primary productivity is essential in comparative studies aimed at identifying environmental trends, like eutrophication, in coastal embayments. In this context, the objetive of this work is to make accessible data, collected from 2000 to 2002, on 13 water parameters (Secchi depth, temperature, salinity, dissolved oxygen, oxygen saturation, suspended matter, chlorophyll-a, phaeopigments, phosphate, silicate, ammonium, nitrite and nitrate) their temporal and spatial distribution, and primary productivity at four coastal sites of Costa Rica. The multi-parameter survey was conducted based on surface (1 m deep) water samples collected at a total of 128 stations at three Pacific and one Caribbean embayments: a bay under the influence of upwelling (Culebra Bay), a tidal estuary (Gulf of Nicoya), a semi-enclosed small coastal bay bordered by mangroves (Golfito Bay), and a Caribbean bay and port (Moin Bay). Graphic distributions of stations from the four embayments and for the Gulf of Nicoya were obtained by Principal Component Analysis (PCA).PCA Gabriel biplots were used to illustrate the relative importance of each parameter on the separation of stations. The four embayments were separated by PCA based on the 13 parameters. The maximum values recorded were: Secchi depth: 12.6 m; salinity: 35 psu; temperature: 32.5 oC; oxygen: 11.4 mg/L; oxygen saturation: 188 %; suspended matter: 156.04 mg/L; chlorophyll-a: 16.21 mg/m3; phaeopigments: 6.37 mg/m3; phosphate: 9.53 µmol/L; silicate: 156.11 µmol/L; ammonium: 2.66 µmol/L; nitrite: 2.47 µmol/L; and nitrate: 4.59 µmol/L. Salinity and several nutrients varied seasonally (dry vs rainy) in the Gulf of Nicoya estuary. Estimates of net primary productivity (Winkler oxygen method) produced a maximum 2 206 g C/m2/year at Culebra Bay. The maximum net PP (g C/m2/year) at the other three embayments, were: 1 601 (Gulf of Nicoya), 1 371 (Golfito Bay), and 1 100 (Moín Bay). Net PP values showed high variability in space and time, and ranged from negative to those associated with oligotrophic, eutrophic, and hypertrophic waters. In the Gulf of Nicoya 60 % of the values of net PP exceeded the reference value (500 g C/m2/year) to separate eutrophic from hypertrophic conditions. Rev. Biol. Trop. 66(Suppl. 1): S211-S230. Epub 2018 April 01. 

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