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Aquacoastmarine
Published by Universitas Sumatera Utara
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
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Jurnal AQUACOASTMARINE merupakan jurnal ilmiah yang diterbitkan berkala secara online yang dikelola oleh Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian, Universitas Sumatera Utara, berisikan hasil-hasil penelitian tentang Pengelolaan Sumberdaya Pesisir dan Konservasi Sumberdaya Perairan, Kualitas Air serta Budidaya Perikanan.
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Articles 354 Documents
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Uji Toksisitas Akut Ekstrak Daun Kamboja (Plumiera rubra L.) pada Ikan Nila Merah (Oreochromis niloticus) Acute Toxicity Test Extract Frangipani Leaves (Plumiera rubra L.) on the Red Tilapia (Oreochromis niloticus) Rangga Warsito; Yunasfi Djayus; Zulham Apandy Harahap
AQUACOASTMARINE Vol 3, No 3 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 3, JUNI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Aquaculture is done highly intensive susceptible to outbreaks of diseas. The use of antibiotics in the prevention of bacterial diseases can cause negative effects to human health. Antibiotics can be replaced with the use of plant extracts containing antibacterial compounds, one of which frangipani leaves (Plumiera rubra L.). This study aims to determine the 96-hour LC50 value and safe concentration of frangipani leaf extract of red tilapia fish seeds. The study is divided into two stages, namely the preliminary test and the definitive test. Preliminary test was conducted to determine threshold concentrations above and below the threshold, where the concentration of the preliminary test is 0 ppm, 50 ppm, 100 ppm, 200 ppm, and 750 ppm. Definitive test using a concentration of 0 ppm; 98,40 ppm; 193,65 ppm; 381,10 ppm; and 750,00 ppm were obtained from calculations based on the threshold concentration of 750 ppm and below the threshold of 50 ppm. Percentage mortality of red tilapia in a preliminary test of the lowest to highest concentration of 3,33%; 16,67%; 46,67%; and 76,67%. Percentage mortality converted into the form used in the probit and probit analysis to obtain the 96-hour LC50 value of 510,63 ppm. Safe concentration of 10% of the LC50 within 96 hours, which is 50,2 ppm. In the 96-hour LC50 valuesindicate that the extract of frangipani leaf included in the category of moderate toxicity.Keywords : Plumiera rubra L., Oreochromis niloticus, LC50, phytochemistry
Kajian Morfometri Dan Karakteristik Kualitas Air Danau Siombak Kelurahan Paya Pasir Kecamatan Medan Marelan Kota Medan Morphometry study and Characteristics Water Quality of The Siombak Lake at Paya Pasir Wards Medan Marelan Sub District Medan city. Sarah Diba Sandy; Yunasfi Djayus; Ahmad Muhtadi
AQUACOASTMARINE Vol 3, No 3 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 3, JUNI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The Siombak lake is an artificial lake that formed as a result of sanddredging activities. The Siombak lake is near with the coast and influencedby ups and downs. The purpose from this study is to known themorphometry aspects of Siombak lake and to known the condition of theSiombak lake waters. This study was conducted over three months themonth of May to July 2014 in the waters of the Siombak lake, Paya PasirWards, Medan Marelan sub district, Medan City. The methods of research indata collection of morphometry is decisive for retrieval. The dimensionalsurface measurement is done by surrounding the periphery of the lake byusing a GPS (Global Positioning System) device. The subsurfacedimensional measurement carried out by measuring the depth of the topeweight scale that helped with the small ship. In the water sampling donethree time at five stations. Based on the results obtained, the Siombak lakehas a surface area of maximum length (Lmax) 740,3 meters, maximumwidth (Wmax) 708,3 meters. The Siombak lake also have depth maximum(Zm) of about 4-5 meters at high tide and 3-4 meters at low tide. TheSiombak lake waters quality with lightly polluted.Keyword : Siombak lake, Morphometry, Quality of Water.
PENGARUH KONSENTRASI TEPUNG ASTAXANTHIN PADA PAKAN TERHADAP PENINGKATAN WARNA IKAN MASKOKI (Carassius auratus) Effect of Astaxanthin Concentration in Diet to Increase Color Of Goldfish (Carassius auratus) Artha Maria Gabriella Sitorus; Syammaun Usman; Nurmatias Nurmatias
AQUACOASTMARINE Vol 3, No 3 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 3, JUNI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Goldfish in Indonesia is popular and likely ornamental fish for all of society. Goldfish have a stable price in the market and quite affordable with the ever-increasing market demand. Goldfish as ornamental fish have interesting colour and excellence in body shapes especially the beauty of their fins. The bright and brilliant colors of Goldfish is an attraction that affect it economical values. Thus, the color should be upgraded and maintained its quality. Such efforts to increase color will be done by pigments manipulation techniques with adding suplement into the feeds. The suplement pigments can be obtained from Astaxanthin. The purpose of this research is to know dosage Astaxanthin that optimal to increase the color of Goldfish.this research using Complete Random Design (CRD) with three repetition, with the dose treatment by 0%, 1%, 3%, and 5% for up during 28 days. Additional Astaxanthin through the feed can increasing colors of the Goldfish. The nutrient that enriched with Astaxanthin dosage is 1% can produce brighter colors than the other dose. Additional Astaxanthin in the feed has no effect on growth of GoldfishKeywords : Astaxanthin, Carassius auratus, Color, Goldfish
PENGENDALIAN Saprolegnia sp. PADA IKAN NILA (Oreochromis niloticus) DENGAN SALINITAS AIR YANG BERBEDA Dayu Kurniawan; Dwi Suryanto; Riri Ezraneti
AQUACOASTMARINE Vol 3, No 3 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 3, JUNI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

DAYU KURNIAWAN. Control of Saprolegnia sp. in Tilapia (Oreochromis niloticus) withDifferent Water Salinity. Under academic supervision By SURYANTO DWI and RIRIEZRANETI.Water quality in fish culture is one of the most important factor that have to bemaintained. Unproper maintained of water quality may result on increase of diseaseprevalence to the fish. One of the disease affected tilapia culture is saprolegniasis caused bySaprolegnia sp.. This study aimed to determine the growth of the fungus Saprolegnia sp. in tilapia(Oreochromis niloticus) in different water salinity as well as to determine the optimum salinity levelsto inhibit the Saprolegnia sp. growth. The growth rate, feed efficiency, survival, fungal colonies,temperature, pH, and DO was measured. The study was conducted with 3 replications and 4treatments, ie 0 ppt, 5 ppt, 10 ppt, and 15 ppt.. The result showed that growth rate were from 0,7 –2,9%, feed efficiency ranged from 30,99 – 61,05%, the survival rate ranged from 6,67 – 90 %and fungal colonies decreased to range between 2,33 – 8,67. Temperatures ranged from 24,9– 26,1°C, pH ranged from 8,3 – 9,0, DO ranged from 6,5 – 7,0 mg/l. Optimum salinity todecrease Saprolegnia sp. in 15 ppt.Keywords: tilapia fish, Saprolegnia sp., Saprolegniasis, Salinity
PENGARUH PEMBERIAN PAKAN DENGAN KANDUNGAN PROTEIN BERBEDA TERHADAP PERTUMBUHAN IKAN BANDENG (Chanos chanos) Effect of Different Feed Protein Levels on Growth of Milk Fish (Chanos chanos) Muhammad Ambia; Eriyusni Eriyusni; Irwanmay Irwanmay
AQUACOASTMARINE Vol 3, No 3 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 3, JUNI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Chanos chanos is one of the consumed fish, and very populer in Indonesiapopulated, easy to growth and very cheap. These studies were give different ofprotein levels. The protein feed were used comercial feed with 30 % and 16 %composition of protein, the growth of fish were observed from june-august 2014 inthe Rawamas village Nurusalam subdistrict Aceh Timur regency. The analysis of datawere used SPSS Versi 22. The results showed that fish feed with protein 30 % highestbody weight than fish feed with protein 16 %, with regard to growth andconformation. Mean and standart error of growth highest body weight 56,4cm, lengthof 20,9 cm and water temperature range 28 – 29 c, ph 7 – 7,2 salinity 29,3 – 30 pptand do 6,66 – 6,79 mg/l.Keywords : Chanos chanos, Feed, Growth.
FUNGSI FISIK MANGROVE SEBAGAI PENAHAN ABRASI DI PESISIR KOTA MEDAN PROVINSI SUMATERA UTARA (Physical Function of Mangrove as Retaining Abrasion at the Coastal of Medan, North Sumatra) Josephin Saut Sintong Panjaitan; Yunasfi Djayus; Zulham Apandy Harahap
AQUACOASTMARINE Vol 3, No 4 (2015): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

This research aims to determine the physical environmental or socio - economic of local community gives more dominant influence to damage the mangrove forest, changes of shoreline has been occurred from 2003 – 2014, changes of shoreline due to the influence of erosion at coastal of Medan and the dominant species of mangrove as retaining abrasion at coastal of Medan. Changes of Shoreline can be seen with the overlay method. This research uses field observation and interview to the local community directly. The results of research shows that socio - economic of local community gives more dominant influence than physical environmental to damage the mangrove forest. changes of shoreline has been occurred from 2003 – 2014 is about 57 meter. Based on field observation, many mangrove forest are converted into farm and many illegal logging has been occurred in the location of research.Keywords : Physical Function, Mangrove, Abrasion, Overlay, Shoreline
STRUKTUR KOMUNITAS MAKROZOOBENTOS DI DANAU PONDOKLAPAN DESA NAMAN JAHE KECAMATAN SALAPIAN KABUPATEN LANGKAT (Community Structure of Macrozoobenthos in Pondok Lapan Lake’s Desa Naman Jahe Kecamatan Salapian Kabupaten Langkat) Desy Ariska; Yunasfi Djayus; Ahmad Muhtadi
AQUACOASTMARINE Vol 3, No 4 (2015): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Makrozoobenthos can be used as bioindicators as it can determine the condition of a bodywater. This study focused on community structure of macrozoobenthos and measurement ofphysical and chemical factors. This study was conducted in January until March 2015.Macrozoobenthos retrived done using Eckman grabb, samples sorted using the Hand sorting.Samples were obtained identified in the Integrated Laboratory of USU. The highest density ofspecies found in Bithynia tentaculata were namely 48 ind / m2 was found in station I and thelowest in Campeloma decisum species were namely 6 ind / m2 was found at stations II andIV. The value of the highest diversity (H ') contained in the station III were namely 1.09 andthe lowest at station IV were namely 1.04. Habitat Similarity between stations based onphysical parameters that are most similar water chemistry contained in the station I and IIIwere namely 94%. Habitat Similarity between species are most similar to the station I and IIIwere namely 92%. Based on a Pondok Lapan lake’s LQI value categorized into pollutedwaters being were namely 3 and based on the FBI Pondok Lapan Lake’s category rather poorwaters that have were namely 6.Keywords : Pondok Lapan Lake’s, Community Structure, Macrozoobenthos
KAJIAN MORFOMETRI DANAU PONDOK LAPAN DESA NAMAN JAHE KECAMATAN SALAPIAN KABUPATEN LANGKAT (MORPHOMETRY STUDY OF PONDOK LAPAN LAKE DESA NAMAN JAHE KECAMATAN SALAPIAN KABUPATEN LANGKAT) Muhammad Ma’rufi; Yunasfi Djayus; Ahmad Muhtadi
AQUACOASTMARINE Vol 3, No 4 (2015): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Morphometry and water quality are primary data to assessing the potential of the lake.Morphometry data of lake is need in determining the lake’s layers and also determine theability to use by people. Pondok Lapan Lake is an artificial lake which located in Langkat.The purpose of this study was to determine the morphometric of aspects Pondok Lapan Lakeand determine the capacity that might be. The research was conducted from January untilMarch 2015. Data collection were performed in this research that were depth, stream flow,and around the lake are processed using ArcView. From the results, the lake morphometricaspects of wide Pondok Lapan Lake is around 63.472,78 m², the maximum length of 548,28m, 220,23 m maximum width, circumference 2.200,83 m, maximum depth of 4.15 m, with asloping bottom waters and shape of the lake bottom surface is irregular. And the capacity ofthe Pondok Lapan Lake which can be used by the public is 153.484,43 m³ of water volume,stream flow around 12.963,456 m³/day-14.111,712 m³/day, Recidance time of water about11-12 days, the brightness of the water approximately 0,965 m – 1,056 m with a depth ofcompensation approximately 2,612 - 2,858 mKeywords : Pondok Lapan Lake, lake morphometry, lake capacity
Struktur Komunitas Plankton di Danau Pondok Lapan Desa Naman Jahe Kecamatan Salapian Kabupaten Langkat (Structure Community Plankton in Pondok Lapan Lakedesa Naman Jahe Kecamatan Salapian Kabupaten Langkat) Fahmi Fadhli Rais; Yunasfi Djayus; Ahmad Muhtadi
AQUACOASTMARINE Vol 3, No 4 (2015): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

In aquatic ecosystems, plankton is a big role in the food chain. This is because therole of plankton as producers (phytoplankton) and first level consumer (zooplankton) in thewaters for other organisms that it can be used as a feeding including fish. This research isfocused on plankton for structure community and measurement of physical and chemicalfactors. This research was held in January-March 2015. The method of research is by usingpurposive random sampling to determine the station's for some intent and purpose. Thecarrying out of plankton did by using Van Dorn water sampler a modified water samplingand then filtered with a plankton net no. 25. The diversity of plankton in these watersclassified as the medium category with H '2.121 value. The types of plankton which found inhigh abundance is Scenedesmus, Chodatella and Ankistrodesmus. And from the types ofzooplankton are Cyclops, Branchionus and Nauplius. Based on its saprobic coefficient isknown that these waters classified as moderately polluted by 1,158 value and classified intothe phase of βmeso/oligosaprobik.Keywords : Pondok Lapan Lake, Structure Community, Plankton, Saprobik.
Struktur Komunitas Nekton di Danau Pondok Lapan Desa Naman Jahe Kecamatan Salapian Kabupaten Langkat (Community Structure of Nekton in Pondok Lapan Lake’s Desa Naman Jahe Kecamatan Salapian Kabupaten Langkat North Sumatera) Nurul Azmi; Yunasfi Djayus; Ahmad Muhtadi
AQUACOASTMARINE Vol 3, No 4 (2015): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Nekton is organism that can swim and move on their own accord with exampleamphibians and aquatic insect. This study aims to determine the structure of nektoncommunity and relation about physical and chemical conditions in the Lake Pondok Lapan .This study was carried out from January to March 2015. Data collection were nekton speciescomposition and abundance, as well as water quality data as a supporter. Nekton retrievalused fish nett and fishing rod. The results showed there were 5 of the Ordo, of which 4 ordobelongs to fish and 1 ordo of shrimp. Sepat rawa (Trichogaster trichopterus) was found to becaught at most in the amount of 141 and 56% relative abundance. Diversity nekton in PondokLapan lake including low at 1,95. General dominance index value approaching 0 is equal to0,23. It shows that almost no one species dominates. Value uniformity tends to 1. The figureshows the number of individuals of each type of deployment is the same. Pearson correlationanalysis results showed that temperature, depth, water transparancy, pH ,DO and COD has apositive correlation with the abundance of nekton while turbidity and COD have a negativecorrelation or do not have the relationship with the abundance of nekton.Keywords: Pondok Lapan Lake, Structure Comunity, Nekton.

Page 12 of 36 | Total Record : 354

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