scholarly journals Dynamics of Dissolved Oxygen in Relation to pH and Survival of Fish Culture in Fiber Glass Tank

2021 ◽  
Vol 6 (3) ◽  
pp. 158-166
Author(s):  
T. E. Adams ◽  
V. A. Okonji ◽  
R. O. Edokpia ◽  
A. F. Yakubu
Keyword(s):  
Dissolved Oxygen ◽  
Glass Tank ◽  
Fish Culture ◽  
Fiber Glass

scholarly journals Analisis Kondisi Kualitas Air Pada Budidaya Ikan Kerapu Tikus (Cromileptes altivelis) Di Situbondo [Analysis Of Water Quality Conditions On Humpback Grouper Culture (Cromileptes altivelis) In Situbondo]

2019 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Ervany Eshmat N, Abdul Manan
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Water Temperature ◽  
Economic Value ◽  
International Markets ◽  
Fish Culture ◽  
Quality Analysis ◽  
Local Market ◽  
Descriptive Method

Abstract The humpback grouper (Cromileptes altivelis) is one of the fishery commodities with high economic value in both local and international markets. The price of humpback grouper can reach Rp. 200,000 - Rp. 400,000 / kilogram in the local market. The humpback grouper is potentially to be developed in most coastal areas of Indonesia. The conditions of water quality have a very important role for the success of fish culture of humpback grouper. To that end, monitoring and management of water quality are necessary in fish culture. The purpose of this case study is to determine the water quality conditions on humpback grouper culture in BBAP, Situbondo. The study was conducted on 16 January until 16 February 2012. The study method use descriptive method. From the results of water quality analysis, the water in humpback grouper broodstock ponds (I1 and I2) is no smell, no colour water, temperature 26.1-30 oC, salinity 27-35 ppt, dissolved oxygen 3.3-3.9 ppm, ammonia levels <0.001-0.22 ppm, nitrite levels 0.0075-0.085 ppm, alkalinity 110-120 ppm and pH 7.94-8.18. The water in humpback grouper hatchery ponds (B1 and B2) is no smell, green colour water, temperature 26.7-29.3 oC, salinity 27-34 ppt, dissolved oxygen 2.7-3.7 ppm, ammonia levels 0.0781-0.28 ppm, nitrite levels 0.0225-3.3305 ppm, alkalinity 94-126 ppm, and pH 7.14-7.81.

scholarly journals KAJIAN KUALITAS AIR DALAM EVALUASI PENGEMBANGAN PERIKANAN DI WADUK IR. H. DJUANDA, JAWA BARAT

2017 ◽  
Vol 14 (1) ◽  
pp. 15
Author(s):  
Didik Wahju Hendro Tjahjo ◽  
Sri Endah Purnamaningtyas
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Water Column ◽  
Fish Species ◽  
Organic Materials ◽  
Primary Source ◽  
Fish Culture ◽  
Water Sampling ◽  
Pressure Source ◽  
Carry Capacity

Budi daya ikan di Waduk Ir. H. Djuanda (A=8.300 ha, Zmax=95 m, dan Z=36,5 m) berkembang sangat pesat, sehingga berdampak pada penurunan kualitas air. Tujuan penelitian ini adalah untuk mengevaluasi kualitas air bagi kepentingan perikanan dan mengidentifikasi sumber tekanan tertinggi di Waduk Ir. H. Djuanda. Pengambilan data dilakukan setiap bulan dan tahun 2004 sampai dengan 2006. Pengamatan kualitas air dilakukan dengan metode pengambilan contoh air secara horisontal dan vertikal. Hasil penelitian menunjukkan bahwa sumber utama degradasi kualitas air adalah bahan organik yang berasal dari Waduk Cirata. Distribusi vertikal oksigen terlarut di perairan menunjukkan ada stratifikasi dengan kedalaman epilimnion yang sangat tipis. Berdasarkan pada analisis kandungan fosfat dan nitrogen, waduk ini telah mengalami perubahan dari eutrofik (tahun 2004) menjadi hipereutrofik (tahun 2005 dan 2006). Degradasi tersebut cenderung meningkat seiring dengan peningkatan jumlah unit karamba jaring apung yang dikembangkan di Waduk Cirata dan Waduk Ir. H. Djuanda. Kondisi ini menunjukkan bahwa pengembangan kegiatan budi daya dalam karamba jaring apung telah melampaui daya dukung dan cenderung mencemari perairan. Upaya mengatasi degredasi tersebut dapat dilakukan dengan 2 cara, yaitu 1) mengurangi usaha budi daya ikan dalam karamba jaring apung di Waduk Ir. H. Djuanda dan Cirata dan 2) menebarkan jenis ikan yang mampu memanfaatkan plankton secara efektif. Development of fish culture in Ir. H. Djuanda Reservoir has been expanded very fast, so it might cause the degradation of water qualities. The aims to evaluated water quality for fisheries purpose and identify the primary pressure source in Ir. H. Djuanda Reservoir. The data were collected every month during year of 2004 to 2006. Water sampling was done by vertical and horizontal. The result indicates that the primary source degradation of water qualities was organic materials from Cirata Reservoir. Stratification of dissolved oxygen in the water column indicates with very thin epilimnion layer. Based on phosphate and N-compuonds analysis, Ir. H. Djuanda Reservoir was changed from eutrophic in year 2004 to hipereutrophic in year 2005 and 2006. The degradation tends to increase with developing floating cage unit numbers in Cirata and Ir. H. Djuanda Reservoir. This condition shows that the development of fish culture in floating cage seems have be over the carry capacity of reservoir and tend to spread the pollution in the water. It effort suggest that the would two ways, i.e. 1) decrease of fish culture activities using be done refering floating cages in Ir. H. Djuanda and Cirata Reservoir and 2) stocking of fish species which are capable to utilized the plankton effectively.

scholarly journals SPATIAL MODELING FOR MARICULTURE SITE SELECTION BASED ON ECOSYSTEM PARAMETERS AT KUPANG BAY, EAST NUSA TENGGARA INDONESIA

2010 ◽  
Vol 6 (1) ◽  
Author(s):  
Agus Hartoko ◽  
A.L. Kangkan
Keyword(s):  
Dissolved Oxygen ◽  
Coastal Water ◽  
Site Selection ◽  
Spatial Model ◽  
Spatial Interaction ◽  
Total Suspended Solid ◽  
Fish Culture ◽  
Physical Parameters ◽  
Biological Parameters ◽  
Physical Chemical

The aims of the study were : a. to identify the physical, chemical and biological parameters at the utilization zone-coastal water of Kupang Bay, East Nusa Tenggara, b. to analyze the value of coastal water suitability from the physical, chemical and biological parameters for the development for maniculture at the utilization zone of Kupang Bay, East Nusa Tenggara, c. to select the sub zone for the sea weed culture, grouper fish culture site using the system of floating net cage and the culture of pearl oyster. The method used in the study is a spatial approach by conducting the direct measurement of the physical, chemical, and biological parameters. Mapping and spatial model was processed and analyzed through a geo-statistic method. The site selection for mariculture sub-zones were constructed through a spatial scoring and spatial interaction-RGB model and based on matrix of ecosystem parameters suitability score and weighting. With consideration that any numerical, mathematical or spatial model related to the surface of the earth or an ecosystem should take into account the concept of 4D function of its spatian distribution (x,y,z)and temporal consideration (time) such as seasonal data. The result showed that the range values of the physical, chemical, and biological parameters at utilization zone of the Kupang Bay are as follow: 1. Variable of physical parameters were: a). depth 5-25 m, b). transparancy 3.00-11.00 m, c). temperature 26-28.45 degree of celcius, d). salinity 31.50-38.20 ppt, e). substrate consist of: sand, sandy clay, clay sand, silt clay, silt, sand, and coral, f). current velocity 0.059-0.238m per s, and g). total suspended solid 180-305mg per l. 2. Variable of chemical parameters were: a). dissolved oxygen 6.85-8.74 ppm, b). pH 7.97-8.59, c). phosphate is 0.081-0.435mg per l, and d). nitrate 0.145-4.134 mg per l, 3. Variable of biological parameter were: a). abundance of phytoplankton 106,760-210,380 cell per l, and b). chlorophyll-a 0.033-0.037 mg per m. Sub zone for seaweed culture identified mainly almost at all area of the middle of the Kupang Bay width about 7,544 hectares. The most-suitable sub-zone for grouper fish culture was 2,803 hectares wide and width of 1,336 hectare of moderately-suitable. Sub zone for pearl culture exist especially at the north part of Kupang Bay and at some area nearby at the mouth of the Kupang Bay wide about 4.383.8 hectares. The approach with the above concept had proved that with a significance difference of scoring-weight on each specific and important ecosystem parameters for each spatial analysis purposes (i.e.50 percent scoring-weight of nitrate and phosphate for sea weed culture sub zone; 40 percent scoring-weight of dissolved oxygen for fish culture sub zone and 40 percent scoring weight of plankton abudance for oyster pearl culture sub zone), had resulted in a distinctive and specific delineation for each culture sub zones, thus avoiding and less on sub zonal overlapping. Keywords: Ecosystem parameters, Kupang Bay, Mariculture, Spatial model.

Dissolved Oxygen Variations in Marine Fish Culture Zone

1991 ◽  
Vol 117 (6) ◽  
pp. 799-815 ◽  
Author(s):  
J. H. W. Lee ◽  
R. S. S. Wu ◽  
Y. K. Cheung ◽  
P. P. S. Wong
Keyword(s):  
Dissolved Oxygen ◽  
Marine Fish ◽  
Fish Culture

scholarly journals Monthly Variations of Physico-Chemical Factors of Keenjhar Lake, Sindh, Pakistan

2019 ◽  
Vol 10 (1) ◽  
pp. 29-35
Author(s):  
Shahina Rao ◽  
Muhammad Arshad Azmi ◽  
Solaha Rahman
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Water Temperature ◽  
Air Temperature ◽  
Lake Water ◽  
Fish Culture ◽  
Physico Chemical ◽  
Permissible Range ◽  
Chemical Factors ◽  
Monthly Variations

The present study was carried out with the aim to assess water quality using physico-chemical factors ofKeenjhar lake. For this purpose, lake water was analyzed with regular intervals. The air temperature ranged between 21°C to 38 °C, water temperature between 19 °C to 36 °C , pH 5.5 to 8, dissolved oxygen 2.26 mg/L to 6.81 mg/L,salinity 0.16 mg/L to 1.13 mg/L, alkalinity from 30 mg/L to 165 mg/L, acidity 8 to 110 mg/L, sulphate 2.6 mg/L to 310mg/L, phosphate from 1 mg/L to 31 mg/L and nitrates 16 mg/L to 180 mg/L during 2006, 2007 and 2008. It wasconcluded that various parameters lie within the permissible range except in a few months and suitable for drinking,irrigation and fish culture purposes.

scholarly journals ANALISIS DEGRADASI LINGKUNGAN PERAIRAN DAN KETERKAITANNYA DENGAN KEMATIAN MASSAL IKAN BUDIDAYA DI WADUK CIRATA, JAWA BARAT

2018 ◽  
Vol 10 (2) ◽  
pp. 83
Author(s):  
Adriani Sri Nastiti ◽  
Sri Turni Hartati ◽  
Budi Nugraha
Keyword(s):  
Dissolved Oxygen ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Mass Mortality ◽  
Fish Culture ◽  
In Situ Observation ◽  
Mortality Event ◽  
Mass Mortality Event ◽  
Zone Ii

Waduk Cirata dimanfaatkan untuk budidaya ikan dengan sistem keramba jaring apung, dimana jumlah keramba saat ini sudah melebihi daya dukung yang menyebabkan kelebihan hara (eutrofikasi). Di Waduk Cirata setiap tahun terjadi kematian ikan hasil budidaya. Penelitian ini bertujuan untuk mengidentifikasi masalah kematian masal ikan di Waduk Cirata. Pengumpulan data dilakukan pada saat terjadi kematian massal ikan akhir September 2017, di Zona I (Sangkalin, Cipicung-Bandung Barat), Zona II (Cimanggu-Purwakarta), dan Zona III (Jatinengang, Patokbeusi-Cianjur) menggunakan metode observasi cepat in situ, wawancara dan studi pustaka. Parameter yang diamati meliputi: Suhu air / udara, Kedalaman perairan, Warna air, Kecerahan, Kekeruhan, TDS (0,046-0,172 mg/l), TSS (total suspended solid), DHL (0,1-0,3 mS/cm), Oksigen terlarut, ORP (-49 sampai 244 mv), bebas CO2, Alkalinitas, pH, Nitrat, Nitrit, Amonium, Fosfat, Sulfat, BOT (5,06-17,06 mg/l), dan Kronologi kematian massal ikan. Hasil penelitian menunjukkan bahwa, kadar Oksigen terlarut dibawah 4 mg/l dan ORP nilainya negatif sehingga perairan tidak mampu menguraikan akumulasi limbah sebesar 390.848 ton/tahun. Kondisi tersebut mengindikasikan bahwa perairan mengalami degradasi, Degradasi lingkungan perairan dipicu oleh fenomena umbalan menyebabkan kematian massal budidaya ikan sekitar 65 ton (Zona III), 25 ton (Zona II), dan 20 ton (Zona I).The Cirata reservoir is used for fish culture by floating net cage system that currently has been exceeded to its carrying capacity that caused an over nutrient (eutrophication). Every year, mass mortality event occurred in Cirata Reservoir. This research aims to identify the causal of mass mortality event in the Cirata reservoir. This research conducted at the end of September 2017 in several locations: Zone II (Cimanggu-Purwakarta), Zone I (Sangkalin, Cipicung-West Bandung), and Zone III (Jatinengang, Patokbeusi-Cianjur). A rapid in situ observation, interview and literature review. Parameters that measured include Water/air temperature, Depth, Watercolour, Brightness, Turbidity, TDS (0,046-0,172 mg/l), TSS (total suspended solid), DHL (0,1-0,3 mS/cm), Dissolved Oxygen, ORP ((-49 to 244 mv), CO2, Alkalinity, pH, Nitrate, Nitrite, Ammonium, Phosphate, Sulphate, BOT (5,06-17,06 mg/l), and the chronology of mass mortality. The results showed that the dissolved oxygen was less than 4 mg/l and negative ORP value that indicated incapability of environment to decompose the feed accumulation waste (about 390.848 tons/year). The degradation of waters environment triggered by upwelling phenomenon could cause mass mortality event on fish culture in three zones about 65 tons (Zone III), 25 tons (Zone II) and 20 tons (Zone I), respectively.

scholarly journals Water quality in Ponte Pensa Aquaculture Park, Solteira Island Reservoir, SP, Brazil, where fish are cultivated under great-volume cage system

2019 ◽  
Vol 14 (4) ◽  
pp. 1 ◽  
Author(s):  
Edna Ferreira Rosini ◽  
Andréa Tucci ◽  
Clóvis Ferreira do Carmo ◽  
Helenice Pereira de Barros
Keyword(s):  
Dissolved Oxygen ◽  
Total Phosphorus ◽  
Phase 1 ◽  
Principal Component ◽  
Fish Culture ◽  
Ammonium Ion ◽  
Joint Analysis ◽  
Monthly Basis ◽  
Cage System ◽  
Physical And Chemical

This study analyzes spatial and temporal variations in physical and chemical water variables due to the influence of fish culture in a cage system (20x20x3 m) in Ponte Pensa Aquaculture Park (Solteira Island Reservoir), before and after cage installation. Water samples were collected on a monthly basis in the subsurface of three sampling sites (August/2011 to July/2013): downstream from the farming site (S1), at the farming site (S2), and upstream from the farming site (S3) (n = 72). Water temperature, pH, dissolved oxygen, transparency, turbidity, electrical conductivity, ammonium ion and total phosphorus were assessed. The principal component analysis (PCA) was applied to joint analysis data. PCA results explained the 61% joint variability in data of the first two components. Fish farming in cages caused significant temporal changes, mainly in January 2013, as well as sudden spatial changes in water physical and chemical variables. Fish culture influenced the quality of the water; such influence was mainly indicated by variations in ammonium ions and in total phosphorus concentrations, which were confirmed through PCA application. PCA results showed two distinct temporal phases: Phase 1 - prior to fish-cage farming, when limnological conditions were characterized by the highest dissolved oxygen concentrations and by high temperatures; Phase 2 - post-production period, when limnological conditions were characterized by the highest total phosphorus and ammonium ion concentrations.

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