scholarly journals Sebaran Klorofil a, Nitrat, Fosfat dan Plankton Sebagai Indikator Kesuburan Ekosistem Mangrove Tugurejo Semarang

2018 ◽  
Vol 16 (1) ◽  
pp. 68
Author(s):  
Anik Prihatin ◽  
Prabang Setyono ◽  
Sunarto Sunarto
Keyword(s):  
Environmental Factors ◽  
Chlorophyll A ◽  
Aquatic Ecosystems ◽  
Trophic Status ◽  
Nutrient Content ◽  
Mangrove Ecosystem ◽  
Nitrate Content ◽  
Aquatic Biota ◽  
Phosphate Content ◽  
Trophic Index

ABSTRAKEkosistem mangrove merupakan suatu interaksi yang terjadi antara tanaman – tanaman mangrove dengan faktor lingkungan perairan mangrove sehingga dapat menyebabkan terjadinya kesuburan perairan dan sebagai tempat mencari makan alami bagi biota – biota perairan. Tujuan penelitian ini adalah untuk mengetahui sebaran klorofil-a, nitrat dan fosfat serta plankton pada ekosistem mangrove yang berguna untuk kelestarian hidup biota – biota perairan Mangrove. Penelitian ini dilaksanakan bulan Oktober – November 2017 di Mangrove Tapak Tugurejo Semarang. Hasil penelitian ini didapatkan kandungan klorofil a rata – rata 0,165 mg/l, kandungan nitrat rata – rata 2,188 mg/l dan kandungan fosfat rata – rata 0,045 mg/l. Kelimpahan fitoplankton ditemukan sebanyak 23 spesies dan zooplankton ditemukan sebanyak 5 spesies. Berdasarkan status indeks trofik perairan Mangrove Tapak Tugurejo Semarang termasuk dalam kategori perairan mesotrofik, yakni unsur hara dan nutrien dalam perairan mangrove kurang tersedia banyak atau sedang dan belum tercemar. Kondisi kesuburan ekosistem mangrove terpantau cukup baik bila dibandingkan dengan kandungan – kandungan unsur hara, klorofil a dan plankton yang melimpah di perairan penelitian, sehingga memungkinkan banyak terdapat kehidupan biota – bioata perairan. Kesimpulan dari penelitian ini adalah kandungan unsur hara (nitrat dan fosfat) dan klorofil a serta plankton diperairan mangrove sangat mempengaruhi kesuburan ekosistem perairan, serta plankton yang mendominasi tempat penelitian ialah dari kelas Baccilariophyceae sebanyak 21 spesies.Kata kunci: Status trofik, Plankton, Ekosistem Mangrove,  Mangrove Tapak Tugurejo Semarang.ABSTRACTMangrove ecosystem is an interaction that occurs between mangrove plants with environmental factors of mangrove waters that can cause the occurrence of water fertility and as a place of natural foraging for aquatic biota. The purpose of this research is to know the distribution of chlorophyll a, nitrate and phosphate and plankton in mangrove ecosystem which is useful for the preservation of biota life of Mangrove waters. This research was conducted in October - November 2017 at Tapak Mangrove Tugurejo Semarang. The results of this study obtained an average chlorophyll-1 content of 0.165 mg / l, an average nitrate content of 2.188 mg / l and an average phosphate content of 0.045 mg / l. Abundance of phytoplankton found as many as 23 species and zooplankton found as many as 5 species. Based on the trophic index status of Mangrove waters Tapak Tugurejo Semarang included in the category of mesotrophic waters, the nutrients and nutrients in the mangrove waters are less available or moderate and not contaminated. The condition of mangrove ecosystem fertility is observed quite well when compared with nutrient content, chlorophyll-a and plankton abundant in research waters, thus allowing many life biota - bioata waters. The conclusion of this research is the content of nutrients (nitrate and phosphate) and chlorophyll a and plankton in mangrove waters greatly affect the fertility of aquatic ecosystems, and the plankton that dominate the research site is from the Baccilariophyceae class of 21 species.Keywords : Trophic Status, Plankton, Mangrove Ecosystem, Mangrove Tapak Tugurejo SemarangCitation: Prihatin, A, Setyono, P dan Sunarto (2018). Sebaran Klorofil-a, Nitrat, Fosfat dan Plankton Sebagai Indikator Kesuburan Ekosistem di Mangrove Tapak Tugurejo Semarang. Jurnal Ilmu Lingkungan, 16(1), 68-77, doi:10.14710/jil.16.1.68-77

scholarly journals Korelasi Nitrat Fosfat Sedimen terhadap Ekosistem Lamun di Pulau Sintok dan Bengkoang, Karimunjawa, Jawa Tengah

2020 ◽  
Vol 9 (3) ◽  
pp. 303-310
Author(s):  
Rachmantino Wibowo ◽  
Nur Taufiq-SPJ ◽  
Ita Riniatsih
Keyword(s):  
Environmental Factors ◽  
Pearson Correlation ◽  
Marine Ecosystem ◽  
Nutrient Content ◽  
Nitrate Content ◽  
Strong Positive Correlation ◽  
Phosphate Content ◽  
Seagrass Ecosystem ◽  
Sea Grass ◽  
Statistical Analysis Method

ABSTRAK: Taman Nasional Karimunjawa merupakan daerah yang memiliki ekosistem laut yang masih lengkap dan asri. Ekosistem Lamun merupakan salah satu ekosistem laut yang memiliki banyak peranan bagi kehidupan di laut. Penelitian ini bertujuan untuk mengetahui hubungan kandungan nutrien nitrat dan fosfat pada substrat sedimen terhadap kondisi ekosistem lamun di Pulau Sintok dan Pulau Bengkoang Lamun merupakan organisme yang hidupnya sangat dipengaruhi oleh faktor-faktor lingkungan. Kandungan nutrien substrat merupakan salah satu faktor lingkungan yang mampu mempengaruhi kehidupan lamun. Nitrat dan fosfat merupakan nutrien esensial yang sangat penting untuk menunjang pertumbuhan dan perkembangan lamun. Penelitian ini bertujuan untuk mengetahui hubungan antara kandungan nutrien sedimen terhadap kerapatan lamun di Pulau Sintok dan Pulau Bengkoang, Karimunjawa. Perbedaan jumlah nitrat dan fosfat di lingkungan diduga dapat mempengaruhi kondisi lamun di Pulau Sintok dan Bengkoang. Metode pengamatan kondisi ekosistem lamun menggunakan metode seagrasswatch. Metode analisis statistika yang digunakan adalah analisis pearson-correlation. Analisis hubungan kandungan nitrat dan fosfat terhadap kerapatan lamun di Pulau Sintok didapatkan nilai korelasi pada nitrat sebesar -0,425 dan fosfat sebesar -0,422. Analisis hubungan di Pulau Bengkoang didapatkan nilai korelasi pada nitrat sebesar -0,933 dan fosfat sebesar 0,849. Dari penellitian ini dapat diambil kesimpulan bahwa nutrien nitrat dan fosfat sedimen di Pulau Sintok memiliki arah hubungan negatif dengan kekuatan hubungan yang cukup terhadap kerapatan lamun. Kandungan nitrat sedimen di Pulau Bengkoang memiliki hubungan sangat kuat negatif, sedangkan kandungan fosfat sedimen memiliki hubungan sangat kuat positif terhadap kerapatan lamun. ABSTRACT: Karimunjawa National Park is an area that has a complete and beautiful marine ecosystem. Seagrass Ecosystem is one of the marine ecosystems that has many roles for life at sea. The aim of this study was to understand correlation of the nutrient (Nitrate Phosphate) in the sediment to sea-grass ecosystem at Sintok and Bengkoang Islands. Sea-grass is an organism whose life is strongly influenced by environmental factors. The nutrient content of the substrate is one of the environmental factors that can affect the life of seagrass. Nitrate and phosphate are essential nutrients that are very important to support the growth and development of seagrass. This study aims to determine the correlation between sediment nutrient content on the density of seagrass in Sintok Island and Bengkoang Island, Karimunjawa. The difference in the amount of nitrate and phosphate in the environment is thought to affect the condition of seagrass in Sintok and Bengkoang Islands. The method of observing seagrass ecosystem condition uses seagrasswatch method. The statistical analysis method used is the Pearson-correlation analysis. Analysis of the correlation of nitrate and phosphate content to the density of seagrass on Sintok Island obtained a correlation value of nitrate of -0.425 and phosphate of -0.422. Analysis of the correlation on Bengkoang Island obtained a correlation value of nitrate of -0.933 and phosphate of 0.849. This study can be concluded that the nutrient nitrate and phosphate sediment on Sintok Island has a negative correlation with an adequate strength of correlation to seagrass density. The sediment nitrate content in Bengkoang Island has a very strong negative correlaation, while the sediment phosphate content has a very strong positive correlation to the density of seagrass.

scholarly journals EFFECTS OF CHROMIUM ON CHLOROPHYLL-a, CARBOHYDRATE AND PROTEIN CONTENTS IN Tetraselmis sp. (Butcher 1959)

2015 ◽  
Vol 2 (1) ◽  
pp. 556
Author(s):  
Ernisa Maranatha Nainggolan ◽  
Rindra Aryandari ◽  
Haikal Prima Fadholi ◽  
Andhika Puspito Nugroho ◽  
Eko Agus Suyono
Keyword(s):  
Protein Content ◽  
Chlorophyll A ◽  
Aquatic Ecosystems ◽  
Paper Industry ◽  
Initial Density ◽  
Nutrient Content ◽  
Inhibition Rate ◽  
Chromium Toxicity ◽  
Cr Concentration ◽  
Determine Effect

<p>Electroplating and paper industry activities contribute to pollution of chromium (Cr) in aquatic ecosystems. The presence of Cr can affect the activity of microalgae which play an important role as primary producers in the food chain of ocean ecosystem.Cr was tested on a species ofgreen microalgae, Tetraselmis sp. This microalgae are very abundant in the sea and can accumulate heavy metals, including Cr. Changes in nutrient content in cells of Tetraselmis sp. can affect the productivity of the next trophic level organisms. This research aims to determine effect of Cr to Chlorophyll-a, carbohydrate and protein content in Tetraselmis sp. The methods of this study include several steps, cultivation with initial density of 40x104 cells ml-1 to log phase, then exposed by K2Cr2O7 during 96 hours with concentrations 0; 3.2; 5.6, and 10 ppm. Cell density was calculated everyday using haemocytometer, observed with microscope and optilab. Chlorophyll-a, carbohydrate and protein were measured by a spectrophotometer on days 0, 4, 6 and 8. Data analysis with ANOVA, the real difference is determined by Dunnet and Duncan Test.The results showed that increasing Cr concentration causes higher growth inhibition rate of Tetraselmis sp. IC50-96 hours was 2.63 ppm and NOEC value was &lt;3.2 ppm. The content of Chlorophyll-a, showed decrease after Cr exposure for 96 hours. Carbohydrate content was increased after 72 hours, and then decreased after 96 hours exposure. Protein content increased significantly up to 96 hours.</p><p><br /><strong>Keywords</strong>: Tetraselmis sp., Chromium, Toxicity test, Chlorophyll-a.</p>

Use of Lake Fossil Diatom Assemblages to Determine Historical Changes in Trophic Status

1989 ◽  
Vol 46 (6) ◽  
pp. 1013-1021 ◽  
Author(s):  
M. Agbeti ◽  
M. Dickman
Keyword(s):  
Chlorophyll A ◽  
Total Phosphorus ◽  
Trophic Status ◽  
Eutrophic Lake ◽  
Regression Analyses ◽  
Diatom Assemblages ◽  
Trophic Index ◽  
Trophic Changes ◽  
Classification Index ◽  
Oligotrophic Condition

Based on the composition of surface sediment diatom assemblages of 30 lakes a classification index for lake trophic status was developed. The lakes were selected to represent a continuum ranging from oligotrophic to eutrophic lake types. A trophic index quotient was derived. The log diatom inferred trophic index (D.I.T.I.) was regressed against the trophic status of the lakes as determined by the log total phosphorus (r = 0.84) and log chlorophyll-a (r = 0.91). Multiple regression analyses showed significant correlations between log D.I.T.I. and the log percentage abundances of oligotrophic, mesotrophic, and eutrophic species (r = 0.89). The abundance of the trophic indicator diatom species depends not only on total phosphorus and chlorophyll-a, but possibly on the interaction of these with other factors. Using this approach, past trophic changes were inferred for oligotrophic Barbara Lake and eutrophic Chemung Lake. The study suggested that Barbara Lake had retained its present day oligotrophic condition over the last 200 yr, whereas major trophic changes have occurred in Chemung Lake.

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 Study of Changes of Trophic Status of the Kuchurganske Reservoir in 2006-2018

2018 ◽  
Keyword(s):  
Chlorophyll A ◽  
Negative Correlation ◽  
Water Body ◽  
Trophic State ◽  
Trophic Status ◽  
Functional Dependence ◽  
Physicochemical Characteristics ◽  
Water Volume ◽  
Content Increase ◽  
Trophic Index

Purpose. Assessment of the trophic status of water in the Kuchurganske Reservoir in 2006-2018. Methods. Determination of hydrological, hydrochemical and hydrobiological characteristics of the water body's environment has been done using standard methodologies. Four indicators of water eutrophication have been used: chlorophyll a concentration, bacterioplankton number, trophic indices TSI and TRIX. Results. Features of physicochemical characteristics of water in the water-body have been analysed. Higher water temperature has been registered in the middle and lower parts of the water-body compared with its upper reaches. Mineral content increase in water has been found in the direction from lower to upper part; the critical for hydrobionts life decrease of oxygen concentration has been registered in the upper reaches the most often. Analysis of long-term changes in chlorophyll a and bacterioplankton has been carried out. Statistical interconnections have been established between trophic state indicators and physicochemical characteristics of the reservoir. A close positive correlation has been registered between chlorophyll а content and bacterioplankton number, which is caused by the functional dependence of bacteria on the organic matter produced by phytoplankton. It has been shown that with an increase of water volume in the reservoir the value of these indicators of trophic status went down, which was proved by close negative correlation dependence between those values and the depth of water-body. It was demonstrated for the first time that water transparency revealed close significant negative correlation with all the indices and indicators of water trophic status, which evidenced the possibility to use the transparency as a simple indicator of water trophic state as established that the Kuchurganske Reservoir’s trophic status assessment on chlorophyll a, bacterioplankton and the TSI trophic index practically coincided and evidenced the increase in trophic status of the water-body from eutrophic to hypertrophic in last 2016-2018. The reservoir’s upper reaches were characterized by higher water trophicity compared with the central and lower parts. The values of TRIX trophic index developed for marine water assessment had practically always been showing higher trophic status compared to other indicators.

QUANTIFICATION OF OIL PALM TREE LEAF PIGMENT (CHLOROPHYLL A) CONCENTRATION BASED ON THEIR AGE

2015 ◽  
Vol 75 (11) ◽  
Author(s):  
Norfazira Mustafa ◽  
Norsuzila Ya’acob ◽  
Zulkiflee Abd Latif ◽  
Azita Laily Yusof
Keyword(s):  
Chlorophyll A ◽  
Oil Palm ◽  
Nutrient Content ◽  
Mature Stage ◽  
Palm Tree ◽  
Tree Leaves ◽  
Chlorophyll A Concentration ◽  
Chlorophyll Pigments ◽  
Different Ages ◽  
Tree Leaf

The main pigments found in oil palm tree leaf are chlorophylls a, b, and c. Chlorophyll a converts light energy into chemical energy through photosynthesis process. The content of chlorophyll pigments varies by their ages. The aim of this research was to determine the concentration in chlorophyll a in different ages. This study is significant in oil palm fertilization for monitoring oil palm nutrient content (NPK). Chlorophyll measurement was done by extracting using methanol solvent and concentration measurement using spectrophotometric method in order to quantify chlorophyll a concentration based on their ages. 6 samples of oil palm tree leaves, collected from 2 different ages, were analyzed. The observed values were determined based on the absorbance at wavelength (670nm) and were calculated for concentrations value based on to the Lambert-Beer law Equation. It showed that the chlorophyll a concentrations at the age of mature stage had been higher than those at the old stage. The results depicted that the chlorophyll a concentration values at the mature stage were 0.33mg/ml, 0.32mg/ml, and 0.18mg/ml, while at the old stage were 0.22 mg/ml, 0.18mg/ml, and 0.06mg/ml.

scholarly journals Retraction: Jelic-Mrcelic G, Sliskovic M. The evaluation of fish farming impact by nutrient content and chlorophyll a in Mala Lamljana bay. Arch biol sci. 2013;65(2):567-70. DOI: 10.2298/ABS1302567J

2015 ◽  
Vol 67 (4) ◽  
pp. 1437-1437
Author(s):  
E Editorial
Keyword(s):  
Biological Sciences ◽  
Water Quality ◽  
Chlorophyll A ◽  
Fish Farming ◽  
Nutrient Content ◽  
Fish Farm ◽  
Significant Part ◽  
Retracted Article ◽  
The Impact ◽  
Font Color

This is a notice of retraction of the article: The evaluation of fish farming impact by nutrient content and chlorophyll A in Mala Lamljana bay, published in the Archives of Biological Sciences in 2013, Vol. 65, Issue 3. The Editor-in-Chief has been informed that the data in this article has already been published in the following article: Jelic Mrcelic G, Sliskovic M. The impact of fish cages on water quality in one fish farm in Croatia. Int Sci Index. 2010;4(8):775-8. Inspection of these articles has revealed the following: a significant part of the data in the article published in the Archives of Biological Sciences was published without proper cross-referencing to the data already published in the earlier paper. This issue was discussed with one of the two authors and it was mutually agreed to retract the article. <br><br><font color="red"><b> Link to the retracted article <u><a href="http://dx.doi.org/10.2298/ABS1302567J">10.2298/ABS1302567J</a></b></u>

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