scholarly journals Suitability analysis of Lampung Bay waters for grouper Epinephelus sp. farming activities

2017 ◽  
Vol 16 (2) ◽  
pp. 234
Author(s):  
Herman Yulianto ◽  
Agus Hartoko ◽  
Sutrisno Anggoro ◽  
Qadar Hasani ◽  
Dwi Mulyasih ◽  
...  
Keyword(s):  
Suspended Solids ◽  
Fish Farming ◽  
Suitable Model ◽  
Biological Parameters ◽  
Suitability Analysis ◽  
Phytoplankton Abundance ◽  
Geostatistical Model ◽  
Surface Mapping ◽  
Marine Area ◽  
Temperature Water

<p class="NoParagraphStyle"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle"><em> </em></p><p class="NoParagraphStyle">Grouper <em>Epinephelus</em> sp. farming activities in Lampung Bay is limited to an area of 77 hectares, while areas that are potential to be used for grouper farming are still very wide. Therefore, this study aimed to assess the suitability of Lampung Bay waters for grouper farming activities. The study was conducted in 20 stations with ecological preference considerations. The parameters observed were physicochemical (water depth, temperature, water transparency, the load of suspended solids, pH, dissolved oxygen, salinity, nitrate, and phosphate) and biological parameters (phytoplankton abundance and chlorophyll-a concentration). After the data were completely obtained, the data were processed into suitability matrix resulting in scores that will be grouped into four classes, namely S1 (highly suitable), S2 (moderately suitable), S3 (marginally suitable), N (not suitable). The geostatistical model was used to perform the earth’s surface mapping based on biotic and abiotic parameters that were analyzed. Based on the results of the analysis in this study, the conditions of Lampung Bay waters were suitable for grouper farming activities. Marine area that could be used for grouper farming was 33,847.12 hectares (S1: 15,712.6 ha, S2: 13,294.7 ha and S3: 4,209.82 ha) in the area around Puhawang Island, Kelagian Island, Maitem Island, Tegal Island to Hurun Bay.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Keywords: Lampung Bay, grouper, suitability analysis, fish farming <em></em></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong>ABSTRAK</strong><strong></strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">Kegiatan budidaya ikan kerapu <em>Epinephelus </em>sp. di Teluk Lampung masih terbatas pada lahan seluas 77 hektar, sedangkan lahan yang berpotensi digunakan untuk budidaya ikan kerapu masih sangat luas. Oleh karena itu, penelitian ini bertujuan mengkaji kesesuaian perairan Teluk Lampung untuk kegiatan budidaya ikan kerapu. Penelitian dilakukan di 20 stasiun dengan pertimbangan ecological preference. Parameter yang diamati yaitu parameter fisika-kimia perairan (kedalaman, suhu, kecerahan, muatan padatan tersuspensi, pH, oksigen terlarut,  salinitas, nitrat, dan fosfat) serta parameter biologi (kelimpahan fitoplankton dan konsentrasi klorofil-a). Setelah data parameter terpenuhi, data diolah ke dalam matriks kesesuaian sehingga menghasilkan skor yang akan dikelompokkan ke dalam empat kelas, yaitu S1 (highly suitable), S2 (moderately suitable), S3 (marginally suitable), N (not suitable). Model geostatistik digunakan untuk melakukan pemetaan permukaan bumi berdasarkan data parameter biotik dan abiotik yang dianalisis. Berdasarkan hasil analisis pada penelitian ini, kondisi perairan Teluk Lampung sesuai untuk kegiatan budidaya ikan kerapu. Luas perairan laut yang dapat digunakan untuk kegiatan budidya ikan kerapu yaitu, 33.847,12 hektar (S1: 15.712,6 ha, S2: 13.294,7 ha dan S3: 4.209,82 ha) di daerah sekitar Pulau Puhawang, Pulau Kelagian, Pulau Maitem, Pulau Tegal hingga Teluk Hurun. </p><p class="NoParagraphStyle">  </p><p>Kata kunci: Teluk Lampung, ikan kerapu, analisis kesesuaian, budidaya</p>

scholarly journals Suitability analysis of Lampung Bay waters for grouper Epinephelus sp. farming activities

2017 ◽  
Vol 16 (2) ◽  
pp. 245
Author(s):  
Herman Yulianto ◽  
Agus Hartoko ◽  
Sutrisno Anggoro ◽  
Qadar Hasani ◽  
Dwi Mulyasih ◽  
...  
Keyword(s):  
Suspended Solids ◽  
Fish Farming ◽  
Suitable Model ◽  
Biological Parameters ◽  
Suitability Analysis ◽  
Phytoplankton Abundance ◽  
Geostatistical Model ◽  
Surface Mapping ◽  
Marine Area ◽  
Temperature Water

<p class="NoParagraphStyle"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle"><em> </em></p><p class="NoParagraphStyle">Grouper <em>Epinephelus</em> sp. farming activities in Lampung Bay is limited to an area of 77 hectares, while areas that are potential to be used for grouper farming are still very wide. Therefore, this study aimed to assess the suitability of Lampung Bay waters for grouper farming activities. The study was conducted in 20 stations with ecological preference considerations. The parameters observed were physicochemical (water depth, temperature, water transparency, the load of suspended solids, pH, dissolved oxygen, salinity, nitrate, and phosphate) and biological parameters (phytoplankton abundance and chlorophyll-a concentration). After the data were completely obtained, the data were processed into suitability matrix resulting in scores that will be grouped into four classes, namely S1 (highly suitable), S2 (moderately suitable), S3 (marginally suitable), N (not suitable). The geostatistical model was used to perform the earth’s surface mapping based on biotic and abiotic parameters that were analyzed. Based on the results of the analysis in this study, the conditions of Lampung Bay waters were suitable for grouper farming activities. Marine area that could be used for grouper farming was 33,847.12 hectares (S1: 15,712.6 ha, S2: 13,294.7 ha and S3: 4,209.82 ha) in the area around Puhawang Island, Kelagian Island, Maitem Island, Tegal Island to Hurun Bay.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Keywords: Lampung Bay, grouper, suitability analysis, fish farming <em></em></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle"><strong>ABSTRAK</strong><strong></strong></p><p class="NoParagraphStyle"><strong> </strong></p><p class="NoParagraphStyle">Kegiatan budidaya ikan kerapu <em>Epinephelus </em>sp. di Teluk Lampung masih terbatas pada lahan seluas 77 hektar, sedangkan lahan yang berpotensi digunakan untuk budidaya ikan kerapu masih sangat luas. Oleh karena itu, penelitian ini bertujuan mengkaji kesesuaian perairan Teluk Lampung untuk kegiatan budidaya ikan kerapu. Penelitian dilakukan di 20 stasiun dengan pertimbangan ecological preference. Parameter yang diamati yaitu parameter fisika-kimia perairan (kedalaman, suhu, kecerahan, muatan padatan tersuspensi, pH, oksigen terlarut,  salinitas, nitrat, dan fosfat) serta parameter biologi (kelimpahan fitoplankton dan konsentrasi klorofil-a). Setelah data parameter terpenuhi, data diolah ke dalam matriks kesesuaian sehingga menghasilkan skor yang akan dikelompokkan ke dalam empat kelas, yaitu S1 (highly suitable), S2 (moderately suitable), S3 (marginally suitable), N (not suitable). Model geostatistik digunakan untuk melakukan pemetaan permukaan bumi berdasarkan data parameter biotik dan abiotik yang dianalisis. Berdasarkan hasil analisis pada penelitian ini, kondisi perairan Teluk Lampung sesuai untuk kegiatan budidaya ikan kerapu. Luas perairan laut yang dapat digunakan untuk kegiatan budidya ikan kerapu yaitu, 33.847,12 hektar (S1: 15.712,6 ha, S2: 13.294,7 ha dan S3: 4.209,82 ha) di daerah sekitar Pulau Puhawang, Pulau Kelagian, Pulau Maitem, Pulau Tegal hingga Teluk Hurun. </p><p class="NoParagraphStyle">  </p><p>Kata kunci: Teluk Lampung, ikan kerapu, analisis kesesuaian, budidaya</p>

scholarly journals The application of ceramic membranes for treating effluent water from closed-circuit fish farming

2016 ◽  
Vol 42 (2) ◽  
pp. 59-66 ◽  
Author(s):  
Małgorzata Bonisławska ◽  
Arkadiusz Nędzarek ◽  
Arkadiusz Drost ◽  
Agnieszka Rybczyk ◽  
Agnieszka Tórz
Keyword(s):  
Suspended Solids ◽  
Fish Farming ◽  
Ceramic Membranes ◽  
Total Iron ◽  
African Catfish ◽  
Effluent Water ◽  
Filtration System ◽  
Rejection Coefficient ◽  
Filtration Stage ◽  
Treating Effluent

Abstract The aim of the study was to analyze and assess the possibility of using a two-stage filtration system with ceramic membranes: a 3-tube module with 1.0 kDa cut-off (1st stage) and a one-tube module with 0.45 kDa cut-off (2nd stage) for treating effluent water from a juvenile African catfish aquaculture. The study revealed that during the 1st filtration stage of the effluent water, the highest degrees of retention were obtained with respect to: suspended solids SS (rejection coefficient RI=100%), turbidity (RI=99.40%), total iron (RI=89.20%), BOD5 (RI=76.0%), nitrite nitrogen (RI=62.30%), and CODCr (RI=41.74%). The 2nd filtration stage resulted in a lower reduction degree of the tested indicators in comparison to the 1st filtration stage. At the 2nd stage, the highest values of the rejection coefficient were noted in for the total iron content (RIV=100%), CODCr (RIV=59.52%; RV=64.28%, RVI=63.49%) and turbidity (RIV and RV = 45.0%, RVI=50.0%). The obtained results indicate that ceramic membranes (with 1.0 and 0.45 kDa cut-offs) may be used in recirculation aquaculture systems as one of the stages of effluent water treatment.

scholarly journals Periphytic algal biomass in two distinct regions of a tropical coastal lake

2012 ◽  
Vol 24 (3) ◽  
pp. 244-454 ◽  
Author(s):  
Stéfano Zorzal de Almeida ◽  
Valéria de Oliveira Fernandes
Keyword(s):  
Water Temperature ◽  
Total Nitrogen ◽  
Suspended Solids ◽  
Human Impacts ◽  
Total Suspended Solids ◽  
Fish Farming ◽  
Dry Weight ◽  
Ammonia Nitrogen ◽  
Coastal Lake ◽  
Net Cages

AIM: This study assessed the phycoperiphyton biomass in two regions submitted to different human impacts on Juara Lake, a coastal ecosystem with multiple uses, to order to test the hypothesis that the sampling sites that receive domestic sewage shows higher biomass values. METHODS: It was installed three experimental structures with artificial substrate (glass slides) in December 2009 in two sampling sites: ED - near the domestic sewage's release; TR - in the area of intensive fish farming (net cages). Samplings were conducted in each experimental structure, after 21, 26 and 31 days for colonization. We evaluated: transparency, electric conductivity, pH, turbidity, total suspended solids, alkalinity, dissolved oxygen, water temperature, total nitrogen, nitrate, nitrite, ammonia nitrogen, total phosphorus, orthophosphate and silicate. The phycoperiphyton was analyzed regarding biomass: biovolume (total and per class); pigments (chlorophyll-a and b and carotenoids) and phaeophytin; dry weight and ash-free dry weight. RESULTS: TR featured higher values of transparency, water temperature and silicate. ED presented greater values of conductivity, turbidity, total suspended solids, alkalinity, total nitrogen, nitrate, ammonia nitrogen, and orthophosphate. No difference was detected between the sites and the succession of days for the dry weight, ash-free dry weight, chlorophyll-b, carotenoids, phaeopigments, and total biovolume. CONCLUSIONS: Nevertheless, the biovolume of Bacillariophyceae and Chlorophyceae were more representative in ED. Only the higher values of chlorophyll confirmed the hypothesis tested.

scholarly journals Spatiotemporal assessment of effects of leachate from landfills on groundwater in Kano Metropolis, Nigeria

2021 ◽  
Vol 880 (1) ◽  
pp. 012051
Author(s):  
H A Suleiman ◽  
M M Hanafiah
Keyword(s):  
Water Quality ◽  
Suspended Solids ◽  
Solid Waste Management ◽  
Biological Parameters ◽  
E Coli ◽  
Physical Chemical ◽  
Significant Difference ◽  
Sources Of Variation ◽  
Mean Concentration

Abstract Improper solid waste management in Kano Metropolis, Nigeria has become a serious threat to human health and ground water quality. Groundwater monitoring should be conducted to assess the groundwater contamination, especially originated from leachate generated from the dumpsites. Most of the dumpsites are located nearby water body that subsequently affecting the quality of the water for human purposes. This study aims to investigate the relationships between different physical-chemical and biological parameters during the two seasons (dry and wet seasons) in Kano Metropolis area as well as to identify the sources of variation during the two seasons. The level of some physical-chemical and biological parameters of the groundwater (wells) and dump sites were assessed (i.e. temperature, pH, conductivity, suspended solids, turbidity, hardness colour, e-coli and coliform). Mean concentration of some physical-chemical and biological parameters except that of temperature, colour, pH and total dissolved solids were found to be above the acceptable limit of the National and International standard of drinking water quality, NESREA and WHO. The sources and variations of the samples results were tested using statistical analysis. The water samples show a considerable level of pollution. The analysis of the groundwater and that of dump sites reveals no significant difference in the parameters measured. It is therefore recommended that the water from this source should be monitored and treated properly before consumption.

scholarly journals Analisis Kesesuaian Lahan Budidaya Rumput Laut Kappaphhycus alvarezii (Doty) menggunakan Citra Satelit Di Perairan Pulau Nusa Lembongan, Bali

2021 ◽  
Vol 10 (3) ◽  
pp. 345-354
Author(s):  
Muhamad Fatah Nashrullah ◽  
A.B. Susanto ◽  
Ibnu Pratikto ◽  
Emi Yati
Keyword(s):  
Human Resources ◽  
Research Method ◽  
Suspended Solids ◽  
Geographical Information ◽  
Total Production ◽  
Water Protection ◽  
Cultivated Land ◽  
Suitability Analysis ◽  
Seaweed Cultivation ◽  
Land Area

Perairan Pulau Nusa Lembongan merupakan salah satu pulau yang berlokasi di Kab.Klungkung, Bali. Budidaya rumput laut di lokasi ini terdapat beberapa kendala dalam pengembangannya, yaitu keterbatasan pemahaman sumberdaya manusia, modal serta penentuan lokasi busisaya rumput laut. Metode penelitian yang digunakan adalam metode eksploratif dengan pendekatan analisa kuantitatif.Penelitian ini bertujuan menganalisis tingkat kesesuaian lahan budidaya dan mengetahui luasan lahan yang efektif untuk budidaya rumput laut di perairan Pulau Nusa Lembongan. Parameter yang diamati yaitu suhu, salinitas, pH, keterlindungan, kedalaman, kecerahan, arus, substrat dasar perairan, nitrat, fosfat, oksigen terlarut (DO), klorofil-A dan muatan padatan tersuspensi (MPT). Analisis dilakukan dengan pendekatan Sistem Informasi Geografis (SIG). Hasil analisis kesesuaian lahan untuk pengembangan budidaya rumput laut di perairan Pulau Nusa Lembongan yang sangat sesuai sebesar 3.375,65 Ha. Sedangkan luas lahan yang efektif sebesar 2.025,39 Ha yaitu 60% dari luas sangat sesuai dengan jumlah rakit yang dioperasikan sebesar 810.156 unit dan ukuran rakit 1 x25 m serta total produksi pada satu musim panen sebesar 89.117,16 ton/siklus panen.  The waters of Nusa Lembongan Island are one of the islands located in Klungkung Regency, Bali. Seaweed cultivation in this location has several features in its development, namely limited understanding of human resources, capital and determining the location of seaweed busses. The research method used is an exploratory method with a quantitative analysis approach.This study aims to analyze the suitability level of cultivated land and determine the effective land area for seaweed cultivation in Nusa Lembongan Island. The parameters temperature, salinity, pH, water protection, depth, brightness, current, bottom water substrate, nitrate, phosphate, dissolved oxygen (DO), chlorophyll-A, and suspended solids charge (MPT). The analysis was carried out with a Geographical Information System (GIS) approach. The results of the land suitability analysis for the development of seaweed cultivation in Nusa Lembongan which are very suitable are 3,375.65 hectares. While the effective land area is 2,025.39 ha, which is 60% of the area, which corresponds to the number of rafts that are operated at 810,156 units, and the size of the raft is 1 x25 m and the total production in one harvest season is 89,117.16 tons/harvest cycle.

scholarly journals Studi penentuan lokasi budidaya kerapu menggunakan keramba jaring apung di perairan Timur Simeulue

DEPIK ◽  
2015 ◽  
Vol 4 (1) ◽  
Author(s):  
Syahrul Purnawan ◽  
Muhammad Zaki ◽  
T.M. Asnawi ◽  
Ichsan Setiawan
Keyword(s):  
Current Flow ◽  
Unit Area ◽  
Economic Value ◽  
Water Clarity ◽  
Suitability Analysis ◽  
Cage Culture ◽  
Flow Temperature ◽  
Bottom Depth ◽  
A Site ◽  
Temperature Water

<p><strong>Abstract. </strong>Groupers are of considerable economic value in southeast Asia.  Cage culture is considered as the proper technology to maximize the sustainable biomass production in a unit area. This research assesses a site selection approach for net-cage grouper mariculture in the eastern coastal area of Simeulue Island, namely Sambai, Kuta Batu and Pulau Bengkalak. Data collection focused on 7 biophysical site capability parameters i.e.: current flow, temperature, water clarity, bottom depth, pH, salinity, dissolved oxygen. Suitability analysis identified all stations was categorized as a very appropriate and appropriate conditions for the fish cage location.</p><p><strong>Keywords: </strong>grouper; mariculture; fish cage; Simeulue</p><p><strong>Abstrak. </strong>Kerapu merupakan komoditas unggulan dan memiliki permintaan pasar yang tinggi di daerah Asia Tenggara. Keramba jaring apung (KJA) dianggap sebagai teknologi yang tepat untuk meningkatkan biomassa budidaya di suatu wilayah. Penelitian ini bertujuan untuk mengkaji kesesuaian lokasi penempatan KJA di wilayah pesisir timur Pulau Simeulue yaitu Sambai, Kuta Batu dan Pulau Bengkalak. Kajian data difokuskan pada tujuh parameter biofisik yaitu arus, suhu, kecerahan, kedalaman perairan, pH, salinitas, dan oksigen terlarut. Analisis kelayakan menunjukkan seluruh stasiun dikategorikan sebagai layak dan sangat layak untuk lokasi budidaya KJA.</p><strong>Kata kunci:</strong> Kerapu; marikultur;  KJA; Simeulue

Comprehensive Study of a Bleached Kraft Mill Aerobic Secondary Treatment System

1992 ◽  
Vol 27 (3) ◽  
pp. 575-600 ◽  
Author(s):  
J. Fein ◽  
M. Beavan ◽  
A. Effio ◽  
N. Gray ◽  
N. Moubayed ◽  
...  
Keyword(s):  
Suspended Solids ◽  
State Of The Art ◽  
Treatment System ◽  
Secondary Treatment ◽  
Biological Parameters ◽  
Physical Chemical ◽  
System Cell ◽  
Kraft Mill ◽  
Solids Removal ◽  
Comprehensive Study

Abstract A comprehensive study (physical, chemical and biological parameters) was made of a conventional secondary treatment system (aeration stabilization basin) linked to a state-of-the-art bleached kraft mill. Overall the system removed 88% of the BOD, 62% of the COD, 47% of the TOC, 56% of the AOX and 69% of the suspended solids present in the influent stream. Of the total removed, the first aeration cell was the most active area of the system, responsible for the removal of 70% of the BOD5, 57% of the COD, 43% of the TOC, 75% of the AOX, and all of the acute toxicity entering the system. Cell 2 was found to be carbon limited. Unlike Cell 1, Cell 2 played a significant role in suspended solids removal.

scholarly journals The effect of effluents from rainbow trout ponds on water quality in the Gowienica River / Wpływ zrzutu wód poprodukcyjnych ze stawów pstrągowych na jakość wody w rzece Gowienicy

2013 ◽  
Vol 19 (1) ◽  
pp. 23-30 ◽  
Author(s):  
Małgorzata Bonisławska ◽  
Adam Tański ◽  
Małgorzata Mokrzycka ◽  
Adam Brysiewicz ◽  
Arkadiusz Nędzarek ◽  
...  
Keyword(s):  
Water Quality ◽  
Rainbow Trout ◽  
Suspended Solids ◽  
Water Hardness ◽  
Total Suspended Solids ◽  
Fish Farming ◽  
Ammonium Nitrogen ◽  
Nutrient Runoff ◽  
Pollutant Concentrations

Abstract Fish farming and especially rearing and breeding of rainbow trout and carp is one of potential sources of surface water pollution. The study was aimed at assessing the effect of a rainbow trout farm on water quality in the Gowienica River in winter. Temperature, pH, electrolytic conductivity, total suspended solids, dissolved oxygen, BOD5, CODCr, alkalinity, water hardness, calcium, magnesium, ammonium-nitrogen, nitrate-nitrogen (III and V) and total phosphorus were determined according to Polish Norms and APHA [1995] in water samples collected in winter up- and downstream the study object. The increment of pollutant concentrations in rainbow trout farm effluents was referred to the requirements in Rozporządzenie MŚ [2006]. Performed studies and literature review show that effluents from the assessed fish farm did not worsen water quality of the river. Increased concentrations of total suspended solids and CODCr in effluents were noted only in March. According to data from the report on environmental status in zachodniopomorskie province in the years 2008-2011, poor water quality of the Gowienica River is recorded already upstream the rainbow trout farm. Pollution of this stretch of the river may originate from uncontrolled waste water management and from nutrient runoff from fields.

scholarly journals Analisis Kesesuaian Lahan Budidaya Ikan dalam Mendukung Pengembangan Minapolitan Kawasan Pesisir Kabupaten Lampung Selatan

2020 ◽  
Vol 20 (3) ◽  
pp. 915
Author(s):  
Mia Ermawati
Keyword(s):  
Coastal Area ◽  
Activity Patterns ◽  
Descriptive Analysis ◽  
Fish Farming ◽  
Overlay Analysis ◽  
Suitability Analysis ◽  
Analysis Technique ◽  
Human Activity Patterns ◽  
Suitable Location

The coastal area of South Lampung has considerable fishery potential, both capture and cultivation fisheries. The high potential of fisheries has made South Lampung designated as a minapolitan area with a center for aquaculture. However, high exploitation and uncontrolled human activity patterns have resulted in environmental degradation such as a decrease in the quality of marine waters and the aquaculture environment which has an impact on the continuity of fishery production. Seeing there are problems, it is necessary to carry out a land suitability analysis to see a suitable location for fish cultivation to support minapolitan development this area. This study used statistical descriptive analysis and overlay analysis to identify suitable locations for fish farming. Through the use of this analysis technique, a location that is very suitable for fish farming in the coastal area of South Lampung is obtained, including Pulau Tiga and Batumandi Island.

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