bluuebunny/crossref_metadata_2025 huggingface dataset:
Life cycle assessment of biodiesel production from crude palm oil: A case study of three Indonesian biodiesel plants
Authors: Wahyono Y , Hadiyanto H
Published: November 2019

This study assessed the life cycle of biodiesel production from crude palm oil at three Indonesian biodiesel plants. The LCA stage is based on ISO 14040, which determines the goal, scope, inventory, impact assessment, and interpretation of the areas under study. However, the main of the research was to compare the carbon footprint biodiesel production processed. Furthermore, the study facilitated and utilized the Greenhouse Gas Protocol V1.02 as a method of life cycle impact assessment, with CO2eq evaluated using fossil fuel, land transformations, and biogenic. The results showed that palm cultivation using crude oil produced the highest pollution source in all categories with the highest at CO2eq. Also, palm cultivation using crude oil production at A, B, and C caused impact categories of 3.2 ton, 3.02 ton, and 2.85-ton fossil CO2eq. These were also extracted from the transportation and production process of crude palm oil in plants that use diesel fuel. Finally, in the production of biodiesel from biodiesel plants A, B, and C, in all categories, the highest impact source of pollution is caused by crude palm oil production.
Community structure of Gastropods in mangrove ecosystem of Pulo Sarok Village, Aceh Singkil Regency, Indonesia
Authors: Octavina C , Defira C N , Ulfah M , Purnawan S , Dwiriansyah R
Published: November 2019

The purpose of this study was to determine the community structure of gastropods in the mangrove ecosystem in Pulo Sarok Village, Singkil District, Aceh Singkil Regency, Indonesia. This research was conducted in April 2018 located in the coastal mangrove ecosystem of Pulo Sarok Village, Singkil District, Aceh Singkil Regency. The purposive random sampling was used in this study. The results showed there were 564 individuals Gastropod in all stations consisted of 4 species of Gastropod, namely Faunus ater as many as 354 individuals, Terebralia palustris as many as 123 individuals, Neritina turrita as many as 58 individuals and Neritina semiconica as many as 29 individuals. The highest density (D) was found at station 3 with a value of 2.44 Individuals per m−2. The diversity (H ') obtained from the three stations ranged from 0.50 to 1.77 which was categorized a the low and medium levels. Evenness index (E) from 0.14 to 0.37 which were in the low category. Furthermore, Domination index (C) of Gastropods range from 0.32 - 0.83. The level of similarity index (IS) ranges from 85.71% - 100%. It is concluded that based on the biological indices the structure of the Gastropods community in the Pulo Sarok Village is at the poor category.
Gill net selectivity, length at first capture and length at first gonad maturity on Hampala macrolepidota (Kuhl & Van Hasselt, 1823) in Ranau Lake, Indonesia
Authors: Makmur S , Arfiati D , Bintoro G , Ekawati A W , Subagdja S
Published: November 2019

Hampala macrolepidota is one of the dominant species was caught in Ranau Lake, (name of city/province). This species has an economic value because its highly demand in the community around the lake. The objective of this study was to know the gill net selectivity, lenght at first capture (Lc) and length at first gonad maturity (Lm) of Hampala macrolepidota, in Ranau Lake. This study was carried out in March to November 2013. Samples of fish were obtained using an experimental fishing in two stations, Banding Agung and Talang Teluk. Fishing gear used two different mesh sizes, 1.5 and 1.75 inches, respectively. For length at first capture and size at first gonad maturity, 1½, 1¾, and 2½ inch-mesh sizes were employed. Results showed that optimum length of fish caught was 16.154 cm and 18.846 cm in 1½ and 1¾ inch mesh size, respectively. The selective size ranged from 9.5-19.6 cm and 12.5-22.1 cm, respectively. Lc/L50% was 15.2 cm, 18.3 cm and 26.8 cm for 1½ 1¾ and 2½ inch mesh size, respectively. Lm was 15.38 cm for males and 19.21 cm for females, respectively. Among fishing gear selectivities, Lc/L50% and Lm had very strong relationship, in which compared with Lm value, female hampala population is very alarming since 1½ and 1¾ inch mesh sizes caught immature gonad females. Good mesh size used was 2½ inch, due to catching post-spawning-sized hampala. Fishing immature fish could cause fish resources extinction.
Determination of iron content within iron sands from Lampanah-Lengah estuary using various analytical methods
Authors: Adlim M , Khaldun I , Rahmi M , Hasanah U , Karina S , Zulkiram Z
Published: November 2019

Lampanah-Lengah iron sand deposit has been analysed by several researchers using XRD, and being reported that it contains hematite and magnetite. The accuracy of iron content data is crucial to analyse due to the economic benefit and environmental consequences. This current study aims to compare the accuracy of several analytical methods to convince the iron content finding. Several methods that were AAS, UV spectrophotometric, gravimetric and redox titration methods were calibrated by determining the iron content of pure iron powder (p.a. Merck) prior to analyse the iron content in Lampanah-Lengah iron sand sample. The accuracy of each method was 99.51; 99.26; 98.82; 96.41% respectively. However the iron contents found in Lampanah-Lengah iron sand sample was significantly different from various analytical methods. The finding were 60.49, 39.58, 34.82, 55.33 and 43.0 wt% detected by AAS, UV spectrophotometric, gravimetric and redox titration methods respectively. It concluded that AAS methods was recorded as the most accurate method for iron content determination in iron sand sample. The iron content is comparable to the common iron content in most samples of iron sand previously reported in several places in Indonesia.
Empowering fisherismen’s wives in diversifying fishery products in Tanjung Medang Village, Bengkalis District, Riau, Indonesia
Authors: Kurnia P , Feliatra F , Lukistyowati I
Published: November 2019

Tanjung Medang is one of villages which have high fishery potency in Rupat utara district. Some of people in this village are fisherment (235 person) of 95 families. Most of fisherment wives do not have additional job beside as hoese wives. To accelarate the economic development of peopole in Desa Tanjung Medang base on local potency is increase knowledge in product diversification of fish products. Method was lecturing and practical work, training, workshop with local people in order to produce qualified and nutrions fish products by appropriate technology, transfering knowledge and instruction to fishermen wives concerning production method in accordance with the standard. Twenty participants of fisherment wives involved were very enthusiasthic and active, 20 participants participated inpreparing all fish product. Discussion between participants and trainers was very intens, mainly, if these was problems in preparing the fish products. It was know that 15 participants had never got such training, two of five participants who had been trained before have fish cracker businiss. Most of the fisherment families eat fish everyday, and only one family have fish three times in a week. Seventeen participants said that the training was very usefull and three participants said it was useful.
Population dynamics of sumbo fish Selar crumenophthalmus (Pisces: Carangidae) in Banda Aceh waters, Aceh, Indonesia
Authors: Perdana A W , Batubara A S , Nur F M , Aprilla R M
Published: November 2019

The stock assessment aims to determine the condition of fish in aquatic environment. In addition, there has been very less research on population dynamics of S. crumenopthalmus, and particular in Aceh has never been done. The aimed of this study is to analyze the population dynamics of the sumbo fish (Selar crumenophthalmus) in Lampulo Fisheries Port, Banda Aceh. The survey has been done from February to April 2019. A total of 164 fish samples were collected. The growth parameters of von Bertalanffy growth function were utilized to analyse the population dynamics of S. crumenophthalmus, using FISAT II (FAO-ICLARM Stock Assessment Tools-II). The results show the population dynamic of infinity length (L∞) as193.2mm, growth coefficient (K) = 4.6 year-1, growth performance index (Ø) = 5.23 year-1, time at which length equals zero (t0) = -0.002 year-1 and optimum fishing length (Lopt) = 158.49mm. In addition, the total mortality rate (Z) was 8.08 year-1 with natural mortality rate (M) = 3.02 year-1, fishing mortality rate (F) = 5.06 year-1, and exploitation rate (E) = 0.63 year-1. Conclusion has been drawn based on E value analysis which reveals that the exploitation rate of sumbo fish has surpassed the sustainable limit.
Ethanolic extracts of Moringa oleifera leaves inhibit biofilm formation of Vibrio alginolyticus in vitro
Authors: Suhartono S , Ismail Y S , Muhayya S R , Husnah M
Published: November 2019

Vibriosis caused by Vibrio alginolyticus infection is getting challenging to treat as the bacteria harbor the ability to form biofilm. One of the natural products that might be potentially applied to treat vibriosis through biofilm deformation is the leaves of Moringa oleifera. The objective of the study was to determine the effect of ethanol extracts of M. oleifera to inhibit V. alginolyticus biofilm formation in vitro. A microtiter plate biofilm assay (OD570nm) method was applied in this study. The treatments were the addition of ethanolic Moringa leaves extracts at different concentrations of 2%, 4%, 8% and 10%. The result of this study showed that Moringa leaves extract significantly inhibited the biofilm formation of V. alginolyticus. The optimal condition to inhibit biofilm formation was at 10% concentration for 60 hours incubation at room temperature signifying the potential application of Moringa leaf extracts to treat biofilmmediated diseases in aquaculture.
Antibacterial resistance Escherichia coli and Aeromonas hydrophila on alkaloid from marine sponge Callyspongia sp.
Authors: Musman M , Kurnianda V , Mauliza A , Winanda A
Published: November 2019

Research on the bioactivity of a compound from Callyspongia sp. as an antibacterial agent against Escherichia coli and Aeromonas hydrophila resistants was conducted. The active metabolite was isolated based on bioassay-guided separation with several steps of chromatography. The FTIR data showed the vibration at 1637.4 cm−1 as C-N imine functional group with the fingerprint region at 1449.0 cm−1 indicated the presence of alkaloid as the active compound. The results of this study informed the inhibitory zone diameter of the extract against E. coli showed an area as wide as 8.10 mm at the concentration of 80 μg mL−1 compared to the inhibitory zone diameter of the positive control Chloramphenicol as wide as 7.50 mm at the concentration of 40 μg mL−1. However, the inhibitory zone of the extract against A. hydrophila displayed an area 8.50 mm in diameter at the concentration of 20 μg mL−1 compared to the zone diameter of the positive control Chloramphenicol as wide as 7.25 mm at the concentration of 40 μg mL−1. Based on the bioassay results, the alkaloid compound from Callyspongia sp. has potential activity against the Gram-positive bacterial resistant of Escheria coli and the Gram-negative bacterial resistant of Aeromonas hydrophila.
A marine isonitrile produced by Indonesian marine sponge of Petrosia sp. as an inhibitor of the human pancreatic cancer cells
Authors: Kurnianda V , Syahliza F , Karina S , Agustina S , Octavina C , Ramadhan M R , Faradilla S B , Ulfah M , Putra D F , Purnawan S , Musman M
Published: November 2019

The study of search the bioactive compound from Indonesian Marine Sponge Petrosia sp. has been conducted on February 2019. The bioactive compound isolated based on bioassay-guided separation with several steps of chromatography. The compound known as C16H25NS determined by lCmS-ESI with molecular weight [M+H]+263.42m/z. The FTIR data showed that the functionality as hydrocarbon skeletone of alkane and isonitrile at 2982.58 cm−1 and 2115 cm−1, respectively. Furthermore, the NMR data confirm that the active compound knowns as 4-amorphene-10- isothiocyanate. The cytotoxic data indicate that the bioactive compound has activity against Panc-1 cell [IC50 = 0.1 μg / mL].The secondary metabolite from Indonesian marine sponge of Petrosia sp. has potential activity against human pancreatic cancer cells.
The inhibitor of human bladder epithelial cancer cells from Indonesian marine sponge of Petrosia sp.
Authors: Kurnianda V , Ramadhan M R , Karina S , Agustina S , Octavina C , Ulfah M , Syahliza F , Faradilla S B , Putra D F , Purnawan S , Musman M
Published: November 2019

The investigation of bioactive compound from Indonesian marine sponge Petrosia sp. has been done on February 2019. The bioactive compound isolated based on bioassay-guide dseparation with several steps of chromatography. The bioactive compound known as C16H25NS determined by LCMS-ESI with molecular weight [M+H] + 263.42 m/z. The FTIR spectrumshowd that the bioactive metabolite has alkane skeleton of hydrocarbonat 2982.58 cm−1andisonitrile functional group at 2115 cm−1. The result of NMR interpretation showed that the bioactive compound know as 4-amorphene with decalin as hydrocarbon skeleton with additional isonitrile moiety. The rate of viability show scytotoxic against NBT-T2 cell.
Antimicrobial agents derived from heterotrophic bacteria againts pathogenic bacteria
Authors: Setiaji J , Feliatra F , Teruna H Y , Lukistyowati I
Published: November 2019

Pathogenic bacteria often cause problems in fish farming. Prevention efforts using synthetic antibiotics may engender negative impacts on the environment. Accordingly, the use of natural antimicrobial compounds is required to minimize the risk. There are several types of heterotrophic bacterias which can produce antimicrobial agents. This study aims to determine the ability of the secondary metabolites extract isolated from heterotrophic bacteria in inhibiting the growth of pathogenic bacteria. The method used in this study was an experimental method. Four isolates of bacterial heterotrophic originating from waters of Sungai Pakning were cultured on nutrient broth for 10 days which would later be extracted by using ethyl acetate. The secondary metabolites extract of the heterotrophic bacteria was tested on 3 pathogenic bacteria that usually attack fish. The antimicrobial test results indicated that the secondary metabolites extract of the heterotrophic bacteria was able to inhibit the growth of Aeromonas salmonicida bacteria from 11.77 to 12.53 mm, Edwarsiella tarda bacteria from 10.70 to 12.40 mm and Edwarsiella ictaluri bacteria from 10.97 to 12.38 mm. Overall, the inhibition of the strongest pathogenic bacteria was JS11 isolates (Bacillus sp. strain SMMA8 code access LN869534.1). Heterotrophic bacteria produced secondary metabolites which can inhibit the growth of pathogenic bacteria in fish. Antimicrobial agents of heterotrophic bacteria are potentially to be developed.
Use of Rhizophora sp. leaf extract for healing motile Aeromonas septicemia disease on catfish (Pangasius hypophthalmus)
Authors: Syawal H , Karnila R , Tang U M , Effendi I
Published: November 2019

Catfish (Pangasius hypophthalmus) is a commercially grown aquatic animal, and A. hydrophila has been described to often cause disease to the Motil Aeromonas Septicemia (MAS) specie. In addition, Rhizophora sp. is a plant reported to contain steroidal compounds, saponins, flavonoids, and tannins, and flavonoid content is widely found in mangrove plants, especially in its fruit, roots, leaves, and outer bark. This study, therefore, aims to examine the uses of Rhizopora sp. leaves extract in the treatment of catfish infected by A. hydrophila, conducted using a completely randomized design (RAL) of one factor (dose of treatment with extract), consisting of four levels; T1 (1300 ppm), T2 (1600 ppm), T3 (1900 ppm), and CT (0 ppm) serving as a control. Moreover, the leaves were sliced, air dried in the room for 10 days, milled, and then macerated with 95% ethanol for 24 hours. This dough was filtered and the residue was further macerated 3 more times, and the resulting filtrate was blended and evaporated to the point at which the gel-shaped extract was obtained. Furthermore, the catfish were injected intramuscularly with 0.1 mL / fish suspension of A. hydrophila bacteria, and the treatment was conducted twice (18 and 42 hours post injection) by soaking in a solution of The leaves for 5 minutes. Parameter measurements (total erythrocytes, hemoglobin levels, hematocrit) values, and graduation of fish life were evaluated at day 0, 3 and 14, post administration and the results showed a decreased in the assessed parameters of the infected fish, when compared to normal ones, which was further elevated close to that shown by the normal, on the 14th day. Post-healing treatment survival rate is observed to be influenced by the concentration administered, and the results were as follows; T1 (33.30 %), T2 (84.60 %), T3 (66.60 %) and CT (0 %).
Identification of marine ecotourism objects on Pulau Jemur, Riau Province, Indonesia
Authors: Effendi I , Elizal E , Jupendri J
Published: November 2019

Marine ecotourism is a form of tourism involving visiting fragments, pristines and relatively undisturbed marine ecosystem areas. Pulau Jemur is a common term for a group of small islands located in the middle of the Malacca Strait, Pasir Limau Kapas District, Rokan Hilir Regency, Riau. This study aimed to identify potential marine ecotourism objects in the area. The research was carried out by recognizing, identifying, observing some marine ecotourism objects on land, in water column, and on the sea floor. Including the beauty, uniqueness and diversity of flora, fauna and other natural phenomenon. It is determined that the potential marine ecotourism objects on the area include; 1) diversity, beauty, and the uniqueness of the species of coastal vegetation. 2) diversity, beauty, and the uniqueness of the animal species on coastal ecosystems 3) some historical objects related to maritime life in the past 4) the beauty and uniqueness of beaches and sea water. 5) diversity, beauty, and the uniqueness of fish species and shallow marine coral reefs. Tourism activities can be in the form of sea sightseeing tour, underwater life boat viewing, snorkeling, diving, swimming, sun bathing, hiking, fishing, joining fishing with fishermen, cooking, eating, etc.
Analysis of histamin content in tuna fish Thunnus sp. with Elisa method at fishing port of Belawan, North Sumatra, Indonesia
Authors: Yusni E , Zai K E S , Zulkifli Z
Published: November 2019

Tuna migration in Indonesian waters is part of the world tuna migration path because the territory of Indonesia is located on the border crossing between the Indian Ocean and the Pacific Ocean. Histamine is a biogenic amine produced through bacterial decarboxylase from amino acid histidine, and is mostly found in large quantities in fish from the familyScombridae.Histamine production in fish depends on histidine levels in fish, the presence of decarboxylase enzyme-producing bacteria and environmental conditions. The amount of histamine produced by fish is strongly influenced by temperature, time, and storage conditions and species of fish.study This aims to determine the value of Histamine found in Tuna (Thunnusssp) caught by fishermen. This research was conducted in July 2018 - August 2018. Samples were taken from the catches of fishermen in Belawan randomly, then tested at the Fish Quarantine Center in Medan Fisheries Product Quality and Safety Control I. Histamine test results obtained were around 2.45234 - 13. 31231 mg / L. It is concluded that the tuna from Belawan is still save for consumption.
Sedimentation process in Kuala Gigieng Coast, Aceh Besar based on magnetic and gravity surveys
Authors: Surya R A , Abdullah F , Darisma D , Yanis M , Ismail N
Published: November 2019

The study of the sedimentation process in coastal can be used to investigate historical settlements and paleo disaster in the area. We have conducted magnetic and gravity survey to model the sedimentation process in Kuala Gigieng area, Aceh Besar, one of the important harbors during the Aceh Sultanate in 16th. The magnetic and gravity methods are able to map structures based on magnetic susceptibility and density distribution below the surface, respectively. The total magnetic field data were measured by the magnetic method, while the gravity method measured gravitational acceleration data. The data were acquired in an area of 1858 x 725 m2 with stations spacing between 70 -100 meters in grid. The standard magnetic and gravity correction was applied to the data, so that the total magnetic field anomaly and Bouguer anomaly are obtained which reflect the conditions the subsurface. The anomaly map obtained shows the pattern of maximum and minimum values, which the patterns were the same as the topography of the measurement area. To get a clearer sediment model, gravity data has been carried out 2D forward modeling with cross sections cutting from coast to land. The 2D model illustrates the existence of 3 layers in the measurement area, sequentially consisting of alluvial and clay, sandstone, and tuff sandstone sediments. The alluvial deposits in the first layer form a repetitive pattern from the land side to the coast; the pattern was formed by coastal activity. The sequence of sediment layers shows the age of the sediment, with the oldest layers formed far from the coast and the youngest layers formed near the coast.
Different of saline embriogenesis and eggs hatching rate of the giant gourami (Osphronemus gouramy)
Authors: Mustahal M , Hasibuan Z H , Syamsunarno M B , Nugraha K A
Published: November 2019

Water salinity is one of the environmental factors that affect the hatching rate of the fish. The aims of this study were to find out the influence of salinity to embryogenesis and hatching rate of giant gourami at the different salinities. This study used four treatments and three replications. The treatments were A 0 ppt, B 1-2 ppt, C 3-4 ppt, and D 5-6 ppt. The salinity was made by adding salt water to the fresh water in aquarium. The number of eggs in each treatment was 32 grains respectively. The parameters observed were the embryogenesis, fertility, hatching rate, hatching time, and water quality. The results showed that salinity influenced the embryogenesis duration of eggs during blastula and gastrula stages, but did not influence to the hatching rate and hatching time of eggs.
Assembled concrete reefs as a stand for coral transplantation on the seabed
Authors: Irawan H , Yude R , Suhana M P , Suryanti A , Kurniawan D , Zahra A , Putra R D , Razai T S , Yunianto A H , Syakti A D
Published: November 2019

Corals are cultured as a multiplication effort to conserve the recovery of coral reef ecosystems in natural habitat or sold as ornamental biota for saltwater aquariums. Coral cultured requires a substrate for the enlargement of transplanted coral tillers, where the substrate must be in accordance with the needs and conditions of the aquatic environment. This assembled concrete reefs as a stand is designed to be resistant to the conditions of the monsoon season sea waters. Artificial reefs made of concrete designed with concrete beam where each beam has a dimension of 1 m in length, 10 cm in width and 10 cm in height are arranged in specific form so that it is easy to assemble to place on the seabed. The test results shown that this structure for 12 months on the seabed is still intact, the position of the structure has not shifted, the transplanted coral has remained attached, natural epiphytes already attached after 1 month and are attached until next 11 months.
Biological aspects of Pangasius hypopthalmus reared under controlled photoperiod
Authors: Windarti  , Riauwaty M , Putra R M , Simarmata A H
Published: November 2019

A study aims to understand the effects of photoperiod manipulation on the biological aspects of Pangasius hypopthalmus was conducted in June 2019. There were 3 treatments applied, namely control (natural light); 24 hours dark (24D) and 18 hours dark (18D). The treated fishes were reared in tarp ponds (75 × 50 × 60 cm) and kept under dark blue plastic tents 24 hours (24D) and 18 hours (18D) continuously. There were 20 fishes/tank and they were fed on commercial fish feed 2 times/day, 5% of total fish body weight. Data on fish growth were collected 3 times, just before the treatment, in the 2nd and 4th weeks after the photoperiod treatment. Data on the fish behavior were collected during the 2nd week, by monitoring fish behavior hourly for 72 hours continuously. Data on blood condition were collected from the fish 2 times, before the treatment and in the 4th week. Results indicates that the 24D provided the best results in fish growth, by the 4th week, the fish TL value was 123.5 mm and BW was 5.6 gr. The blood condition of fish in all treatments were normal and there was not significantly difference, with hematocrit value was 30%, 1.5% of leucocrite levels, 70% of lymphocyte and 30% of other leucocyte types. The shortened photoperiod duration positively affects the growth of P. hypopthalmus growth, but it does not affect the biological aspect of the fish in general.
Degradation of crude oil-degrading bacteria isolated from the coastal waters of Bengkalis Island, Riau
Authors: Nursyirwani N , Effendi I , Feliatra F , Shaumi N , Fitria G U , Yoswaty D
Published: November 2019

Bengkalis waters is relatively busy traffic area due to regional and international marine transportation which is very vulnerable to oil pollution. Cleaning of oil spill could be attempted by the use microorganisms (bioremediation). Bioremediation is an effective, economical and environmentally friendly treatment method in which microbes are used to degrade hydrocarbons. The objectives of this research were to isolate oil-degrading bacteria from seawaters in the North coast and in the South area of Bengkalis Island, to examine the bacterial isolates in degrading crude oil and to identify the isolates by phenotype (morphological observation, biochemical tests) and genotype characters (16S rDNA sequence). Bacteria was isolated on SMSS basal medium, oil content was measured by Gravimetry method, DNA sequence was analized by using polymerase chain reaction (PCR) followed by sequencing using genetic analyzer machine. Sixteen bacterial isolates from the seawaters had different morphology, physical and biochemical characters. Six isolates from the North coastal waters (BM 1a, BM 1c, BM 1d, BM 7a, BM 14a and BM 14b) and three isolates from Sungai Pakning waters (S1P26B, S2P35b and S3P35a) showed high ability in degrading crude oil at concentrations 1%, 2% and 3%). DNA sequence analysis indicated isolate BM 1a had similarity to Bacillus circulan W239 (99%), isolate BM 1c was similar to B. thungiriensis LDC507 (92%), isolate BM 1d was similar to B. flexus CORSS01 (96%), isolates BM 7a and S1P26B were similar to B. cereus MBGIPS 18 (94% and 95%, respectively), isolate BM 14a was similar to B. flexus MDLD1 (, isolate BM 14b was similar to B. thuringiensis LDC 507 (98%), isolate S2P3 5b was similar to B. cereus KJW1 (98%) and isolate S3P3 5a was similar to B. cereus MCCC1a06185 (99%). In conclusion, bacteria of genus Bacillus dominated the crude-oil degrading bacteria from Bengkalis Island waters.
Analysis of environmental carrying capacity with AHP in ArcGIS of Weh Island
Authors: Arif A A , Machdar I , Azmeri  , Achmad A
Published: November 2019

Development of infrastucture will increase sporadic land use and tend to cause land degradation. This paper is intended to investigate the effects of land use and land cover (LULC) processes on Weh-Sabang Island, Indonesia. The duration of LULC changes is analyzed using Google Earth image and ArcGIS from 2008 to 2018. Through observations of satellite imagery detected protected area and green space area has been greatly reduced in area and transformed into built-in land which functions as a tourist area and urban built environment. The increase in land density since 2008 is due to the construction of tourist attractions in hilly areas to coastal areas around Weh-Sabang Island, and can cause changes in the morphology and typology of the city of Sabang. Through the method of calculating the Land Diversity Index, changes can be made in the number of areas that have changed in the period of the year being monitored. This paper focuses the development of an ArcGIS Weh Island map with the analytical hierarchy process (AHP). It is expected that efforts will be made to control land use changes in areas that have directly experienced land degradation, and analysis of water resources carrying capacity in Weh Island.
Ocean eddy detection in the Andaman Sea during April 2008
Authors: Ardila D , Haditiar Y , Ikhwan M , Wafdan R , Muhammad  , Sugianto S , Rizal S
Published: November 2019

Eddies have an important role in momentum transport, water mass, heat, and marine biogeochemical cycles. So far the information regarding eddies in the Andaman Sea is still little known. By using National Centers for Environmental Prediction (NCEP) / National Center for Atmospheric Research (NCAR) wind data, Sea Surface Height (SSH), and geostrophic currents obtained from altimeter data, this paper aimed to detect eddies during April (intermonsoon). Eddies were formed by current turbulence, gradient pressure variations, and the influence of sea surface wind. Observations showed that the SSH variations was supported by the west wind from the Andaman Sea. Spatial SSH differences caused the dynamics of geostrophic currents and eddies. During April 2008, we found six eddies scattered around the Andaman Sea, where there were four eddies cyclones and two eddies anticyclones.
Effects of addition local microorganisms (LM) in commercial feed to the growth of Osphronemus goramy
Authors: Arisa I I , Putri M , Devira C N , Rahimi S A E , Perdana A W
Published: November 2019

This study aimed to determine the effect of adding local microorganisms as probiotics in commercial feed to accelerate the growth ofOsphronemus goramy.This research was conducted in December 2018 to February 2019 at the Marine Biology Laboratory, Faculty of Marine and Fisheries, Universitas Syiah Kuala, Banda Aceh. The method used in this study was an experimental method with Completely Randomized Design (CRD) consisting of 6 levels of treatment and 3 replications. The concentration treatment tested ware the addition of LM 0 ml 100g−1of feed (A), 2 mL 100g−1of feed (B), 4 mL 100g−1of feed (C), 6 mL 100g−1of feed (D), 8 mL 100g−1of feed (E) and 10 mL 100g−1of feed (F). The ANOVA test results showed that administration of LM in commercial feed at a dose of 4 mL 100g−1had an effect on absolute length growth, absolute weight growth, specific growth rate, feed conversion ratio and survival (p<0.05), but did not affect the value feed efficiency (p>0.05). The best treatment was obtained in treatment C (addition of 4 mL 100g−1LM of feed) namely absolute length growth (3.08 cm), absolute weight growth (0.31g), specific growth rate (2.42%), feed conversion ratio (3.22) and survival rate (74.35%). Water quality parameters in this study were within the normal tolerance range for the life of carp.
The composition and abundance of reef fish (Family Chaetodontidae) in Aceh Besar Waters, Aceh, Indonesia
Authors: Fadli N , Muchlisin Z A , Ikhsan B , Dewiyanti I , Purnawan S , Nurfadillah  , Ulfah M , Sofyan H , Affan M , Siti-Azizah M N
Published: November 2019

The objective of the present study was to study the composition and abundance of reef fish (Family Chaetodontidae) in coral reef area in Aceh Besar waters. This research was conducted in September 2012 until February 2013. The study was conducted in eight locations in the waters of Aceh Besar district: Amat Ramanyang, LhokKetapang, PulauDituan, Lampuuk, LhokSeudu, Leupung, Pulo Aceh and Lamteng. The fish was recorded using Visual Census Method in two different depth (3-4 m and 6-8m) with three replication in each depth. The result found eight species of fish in 3-4 m depth and 11 species in 6-8 m depth. The total individuals of fish that was found were 83 individuals in 3-4 m deep and 117 individuals in 6-8 m depth. The diversity index in 3-4 m depth ranged 0.3 to 1.1 where this value included in low to medium category and 6-8 m depth ranged 0.3 to 1.6 where this value included in low to mediumcategory.
Fish diversity and abundance in GROPOZAG construction in Ujong Batee waters, Aceh Besar District, Indonesia
Authors: Dewiyanti I , Syahputra R , Ulfah M , Yunita Y
Published: November 2019

The community structure of fish species including diversity index and abundance is important to be studied as one of the secondary productivity indicators in any ecosystem. Furthermore, species richness and density can be used for conservation and management purposes. GROPOZAG (Groin Porous Zig-Zag Type) is a breakwater building construction designed in the form of cube blocks with holes and arranged zigzag. The purposes of the present study were to assess the abundance and diversity of fish species in GROPOZAG construction area in Ujung Batee water, Aceh Besar. This research was conducted from January to March 2018. The method used in this research was belt transect using visual census. Fish data collection was carried out once a month for three months at the highest tide with a depth 2-4 m and each observation was done three replications. The result of this research found nine families of fish divided into 13 species. Some species were always found in each sampling i.e. Acanthurus auranticavus, Abudefduf vaigiensis, Monodactylus argenteus, and Arothron manilensis. The highest fish abundance was Monodactylus argenteus with an average of 41 individuals/80m2. Most fish species in the GROPOZAG construction were herbivorous fish (62%) and followed by omnivorous (33%), and carnivorous was 5%. The average of fish abundance was 129 individuals/80m2. The value of diversity index (H’) ranged from 1.15 to 1.79 categorized into medium category and evenness index ranged from 0.76 to 0.83 (high category). GROPOZAG construction is affective as a new habitat for aquatic organisms such as fishes.
The relationship of length-weight and condition factors of layang fish (Decapterus russelli) landed at KUD Gabion of Oceanic Fishing Port, North Sumatra
Authors: Agista L , Muhammadar A A , Chaliluddin M A
Published: November 2019

Fish length-weight analysisis very important to determine the biological conditions of fishand fish stocks so the management of fish sustainability and biodiversity can be easily done.This research aims to determine the biological aspects of the relationship between the length-weight and condition factors of Indian Scad (Decapterus russelli) which landed at KUD Gabion of Oceanic Fishing Port, North Sumatra. The sampling used simple random sampling method conducted from February to March 2019. The number of samples used was 100 sampel. There are two parameters used in this study, namely, the total length of fish (measured from mouth to tip of tail), measured using a ruler with accuracy of millimeters (mm) and the weight of the fish weighed using a digital scale with accuracy of 1 gr. The Data were analyzed by Linear Allometric Model (LAM). The results showed that Indian Scad (Decapterus russelli) had a negative allometric growth pattern with a value of b=2.39. The value of 100.59 from the factors of relative weight conditions indicated a stable state of the water and a value of 3.04 from the factor of Fulton's condition allowed for availabilityabundant food.
The utilization of thalus cutting results to growth and carrageenan content (kappaphycus alvarezii) in Hansisi Water, Semau District, Kupang Regency
Authors: Marcelien D R O , Felix R , Sunadji
Published: November 2019

The growth of Kappaphycusalvarezii is one of the biological aspects influenced by the seeds of the method and the planting system in determining the carrageen content. This study aims to determine the effect of the use of seedlings resulting from the passage of thalus seaweed to the growth and carrageenan content of seaweed K.alvarezii). The method used is an experimental method with a long line system implemented in Hansisi, Semau, Kupang District waters for 5 months from April to September 2017. The results showed that the average growth of K.alvarezii cultivated during 45 days in Hansisi waters, Semau District using seeds the results of the excerpts thallus are 724 ± 15.30 g and seeds without of excerpts thallus are 546 ± 15.17 g. Carrageen content generated from seed of the excerpts thallus: 56,17% and seed without of excerpts thallus : 45,13%. Water content on seedling treatment of the excerpts thallus: 11,97 ± 0,13%, while without of excerptethallus: 17,03 ± 0,15%. Ash content on seed treatment of excerpts thallus: 28,53 ± 0, 21% and without of excerpts thallus 12,38 ± 0,04%. Average nitrate content in Hansisiwaters 1.02 - 2.3 mg / l, whereas a good nitrate content for aquaculture of 1.0 - 3.2 mg / l, phosphate content (PO4) :0.015 - 0.10 mg / l.
Status of area suitability for coastal tourism in East Coast of Weh Island marine protected area, Sabang, Aceh
Authors: ‘Akla C M N , Suharyanto S. , Rachmad B , Firdaus R , Muhammad M
Published: November 2019

The objective of this study is to determined the status and tactical decisions priority of area suitability for coastal tourism in East Coast of Weh Island (PTPW) Marine Protected Area. Types of data sources used in this study were primary data and secondary data, where the primary data is data obtained through direct measurement and interview, secondary data is the data obtained from second party. Data were processed and analyzed by qualitative and quantitative methods, and Tourism Suitability Index (IKW). Assessment of the area suitability for marine tourism, showed that Anoi Itam and Sumur Tiga are suitable to be used as diving and snorkeling areas.
Effect of wind-driven currents circulation in Sabang Waters
Authors: Rasyidi H T A , Haditiar Y , Ikhwan M , Wafdan R , Setiawan I , Sugianto S , Rizal S
Published: November 2019

Sabang Waters is located in the Aceh Province, Indonesia, directly adjacent to the Andaman Sea which is dominated by the influence of the monsoon wind. Sabang Waters is a strategic area and one of the zones of coral reef ecosystems in Indonesia. Hydrodynamics in Sabang waters is studied to support the management of Sabang Waters in the future. The motivation of this research is as a preliminary study of wind-driven circulation in Sabang Waters. The method applied is a 2D numerical model simulation with 6-hourly wind data during January - March 2019. The results of the simulation of ocean currents are verified by monthly surface wind conditions. Based on current analysis during January - March 2019, wind-driven circulation in Sabang Waters is quite weak, especially in the Sabang Bay. The flow looks a little stronger in the northeastern part of Sabang Waters especially during January (3 ms−1).
Effects of different live feed on growth and survival rate of clown loach, Cromobotia macracantus
Authors: Putra D F , Nur F , Rahimi S A E , Othman N
Published: November 2019

This study aims to investigate the effect of different types of live feed on the growth and survival of clown loach,Cromobotia macracanthus. We used a completely randomized design with four treatments and five replications. The treatments were A; commercial diet feeding as control, B; silkworm, C; golden snail, D; sea worm. The feeding rate was 5% of body weight and feeding frequency was twice per day fed for thirty days. Tested parameters were weight gain (WG), length gain (LG), specific growth rate (SGR), feed conversion ratio (FCR) and survival rate (SR). The result showed that the administration of different live feed had a significant effect on growth performances (p <0.05) of clown loach fingerlings, but did not significantly affect its survival rate. The optimum weight gain (WG), length gain (LG), specific growth rate (SGR), feed conversion ratio (FCR) were found at treatment B, silkworm feeding with 0.78 ± 0.02 g, 4.33±0.01 cm, 0.47 ± 0.01%/day and 2.44 ± 0.08 respectively. Therefore, we concluded that the silkworm was highly recommended for clown loach,Cromobotia macrancantusfingerlings feeding.
The field study of hydro-oceanography of Krueng Teunom estuary
Authors: Irham M , Zulkifli R , Maulinda M , Setiawan I , Deli A , Purnawan S
Published: November 2019

Hydro dynamic of estuarial area has great effect on how river flow influence on the dynamic of sea coast. The study of hydro-oceanography of Krueng Teunom estuary was done by observing and retrieving data directly from the field. The study aims to understand how the dynamic of flow, waves and tides in the estuary of Krueng Teunom work in the area as knowledge base of hydro-oceanography dynamic in the coastal zone. The method used in this study was a direct measurement in the field with several sample points as a purposive sampling. The results showed that the condition of the waters dynamics was more influenced by upstream currents while the influence of waves in the estuary area was not dominant.
The community structure of Gastropods as bioindicators of water quality in Krueng Aceh, Banda Aceh
Authors: Afwanudin A , Sarong M A , Efendi R , Deli A , Irham M
Published: November 2019

Gastropods have an important role in an ecosystem that is directly involved in the food chain system and can be used as a bioindicator of water quality because it is sensitive to water pollution. This study was conducted to analyze the quality of the waters of Krueng Aceh by identifying the diversity of the Gastropod community and analyzing the COD and BOD content in the waters. The study used a purposive sampling method by applying 5 sampling stations along the study area. Gastropod samples are taken using Ponal Grab, which is 23 cm x 23cm and sieved from the substrate using a mesh filter. The results showed that the highest abundance index was obtained at station 1, which is 15 ind/m2. The results of identification in the study area are 15 Gastropod Species. Furthermore, the most widely found Gastropod species is Snail tiger, while the least is Margarites. This result informs that the highest diversity index is found at station 1, which is 2.51 categorized as moderate pollution and on the other hand the dominance index level is less than 0.50 or no one dominates at each station.
Fishermen’s food consumption behavior at Bubun Village, Langkat
Authors: Lubis M M , Effendi I , Lubis Y
Published: November 2019

The problems of this research are how consumers act with respect to food consumption and how the influence of social, economic, cultural, and environmental factors affects the variation in food consumption based on local resources. The primary data were obtained directly from the study respondents of the people in the East Coast of North Sumatra in the Bubun villages in the district of Tanjung Pura. Their main occupation is as fishermen where they had little or no education, with little income to meet the daily needs of the family. The conclusions of this study i.e., age, education level of housewife, marital status and ethnicity significantly affected the household food consumption. The socio-economic fishermen of Bubun village were below average compare to national average.
Community institution development strategy as fisheries management authority institution at Ponggok Village, Klaten
Authors: Putri N , Hikmah  , Shafitri N , Nurlaili
Published: November 2019

Ponggok village is one of the villages in the Klaten Regency that has an abudance of springs. This condition is used as a potential to improve the village economy. One of the strategies undertaken by the village government is to manage the spring as a means of tilapia cultivation. The management is carried out by developing community institutions through groups of fish farmers. This study aims to determine the implementation of strategies in the management of fisheries resources in Ponggok Village. This study uses a qualitative descriptive research method. Primary data mostly related to community institutions towards the utilization of fisheries resources. The selection of informants is done deliberately by considering the interests of the respondents in the management institution. Data collection is done by interview techniques, observation and documentation using tools such as interview and observation guidelines. The data analysis technique in this study uses an interaction model approach in the form of an institutional approach and the principles of co-management. The results of the study show that the strategy applied by the government in the management of fisheries resources is through institutional development using a participatory approach to decision making. The strategy has been implemented through a predetermined work program by forming a group of fish farmers shaded by Badan Usaha Milik Desa (BUMDes).
Multifunction Wastewater Treatment Plants as Educational and Recreational Parks for the Community
Authors: Dewi O C , Ismoyo A D , Saskia C S , Ridzqo I F , Felly R
Published: November 2019

The scarcity of land and the lack of communal sanitation in slum areas are common issues in densely populated country like Indonesia. One of them happens in Kampung Nambo, located in South Tangerang City, Banten Province. Those issues encourage some household to build their houses without an adequate sewage disposal system within a very limited land. Wastewater flows directly to the river without any treatment process and it creates negative impact to the environment and human life. Moreover, this kampung also does not have educational and recreational parks facilities, which can fulfil human’s need to socialize and health. The method used in this study is an action-based research. Addressing the problem of scarcity of land and the need for WWTP facilities, the complementary facilities offered are hydroponic farming, workshop venue, playgrounds, reading park, sports facilities that are integrated with the proposed WWTP area. Generally, the WWTP areas often placed in the backside and were not utilized optimally. Meanwhile this study accommodates the WWTP towards integrated and multifunction facility. It is not only to fulfil the needs of education and recreation parks for the community, but also to preserve the location for WWTP extension in the future.
Perception of Students toward Green Open Spaces in Special Region of Yogyakarta
Authors: Inderawan N A , Ikhwanudin
Published: November 2019

This study aims to determine students’ perceptions toward the importance of green open space function in Special Region of Yogyakarta. This study applied a quantitative approach by using survey method about the importance of green open space function towards 124 respondents of the Graduate School, Yogyakarta State University, Yogyakarta Indonesia. The results of this study shows that students are knowing more the benefits of green open space (about 40.3%) compared to the substantial meaning and purpose of green open space (about 18.5% to 27.4%). Many students know the benefits of trees and greenery (about 90.3%) but are still in doubt about the existence of green open space and green path conditions (about 30.6% to 49.2%). As many as 50% Respondents still do not know about the role of government of Special Region of Yogyakarta in the provision of green open spaces.