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Aquacoastmarine
Published by Universitas Sumatera Utara
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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 15 Documents
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Search results for , issue "Vol 3, No 4 (2015): AQUACOASTMARINE" : 15 Documents clear
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.
Analisis Kualitas Air dan Beban Pencemaran di Danau Pondok Lapan Kecamatan Salapian Kabupaten Langkat (Analysis of Water Quality and Pollution Load in Pondok Lapan Lake Kecamatan Salapian Kabupaten Langkat) Ahmad Rizki; 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

Pondok Lapan Lake is an artificial lake located in Dusun Pulka Desa Naman JaheKecamatan Salapian Kabupaten Langkat. Pondok Lapan Lake around palm plantations. Thelake was originally made for irrigation. However, the surrounding communities do not havethe will to farm, they prefer planting such as palm oil and rubber tree. The study focused onwater quality and pollution load. This study was conducted in January until March 2015.Water sampling is done by using a sampling below the surface of the water. Samples of waterwas analyzed in Balai Teknik Kesehatan Lingkungan dan Pengendalian Penyakit (BTKLPP)kelas 1 Medan. The study resulted by the status of water quality with storet method based onthe quality standard of Grade I and II, -17 in a polluted medium and 0 in good condition.Status of water quality with pollution index method based on the class I and II,1.024 and0.617 in lightly polluted and in good condition. Pollution load capacity that can get into thewaters of Pondok Lapan Lake is 1,984 Pa kg / year.Keywords: Pollution Load, Pondok Lapan Lake, Water Quality
KEBIASAAN MAKANAN IKAN BAUNG (Mystus nemurus C.V) di Sungai Bingai Kota Binjai Provinsi Sumatera Utara Food Habit of Baung Fish (Mystus nemurus C.V) in Bingai River Binjai City, North Sumatera Province windy windy; Hesti Wahyuningsih; Ani Suryanti
AQUACOASTMARINE Vol 3, No 4 (2015): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Research of Baung’s food (Mystus nemurus C.V) was performed in Bingai river in June to August 2014. The purpose of this study was to determine the type of natu-ral food and the availability of natural forage baung (Mystus nemurus CV) in the Bingai River and general condition of the waters of the Bingai. Stomach contents were analyzed by using Index of preponderance. Stomach contents consisted of 8 types of fish, plant fibers, Thiara scabra, Planaria sp., Nodilittorina pyramidalis, Faunus ater, the rest of the insect, and coupled with parts not identified. The small fish is the main food, fiber plants is a complementary food, and Planaria sp., Thiara scabra, Nodilittorina pyramidalis, and Faunus ater are additional food. Benthos as natural food in the bottom waters which have the highest abundance was Thiara scabra. Baung selective about its food. Index of Electivity (E) indi-cates that Planaria sp. is a popular type of fish food benthos baung than other benthos.Keywords: Bingai river, Food habit, Mystus nemurus.
PERTUMBUHAN DAN LAJU PENANGKAPAN IKAN TONGKOL KOMO (Euthynnus affinis Cantor 1849) YANG DIDARATKAN DI PELABUHAN PERIKANAN SAMUDERA BELAWAN SUMATERA UTARA Growth and the Rate of Catch of Eastern Little Tuna (Euthynnus affinis Cantor 1849) Landed on Belawan Febrina Rahmadanti Putri; Darma Bakti; Desrita Desrita
AQUACOASTMARINE Vol 3, No 4 (2015): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Eastern Little Tuna is one of the fisheries commodity that has high economic value in Medan.This type of fish is the most demand in the local market, thus it becomes the main target forfisherman to catch. However, this activity has negative impact for the population of EasternLittle Tuna. This study was done at KUD Gabion on November 2014 until April 2015. Thisresearch aims to study about the growth pattern, factor condition of plumpness, and also therate of exploitation in order to determine management model for the fish resource. Theprimary data is the total length and weight of 371 samples of Eastern Little Tuna, while thesecondary data is the temperature of sea surface. The cohort length of fish is separated byBhattacarya method in FISAT II software. The Von Bertalanffy growth parameters estimatedwere asymtotic length (L∞) = 628,95 mm, growth coefficient (K) = 0,24 year-1 and the age atzero length (t0) = -0,30 from Pauly’s empirical equation. Then, the growth equation forEastern Little Tuna is Lt = 628.95 (1‐e[-0.24(t+0,30)]), whereas value of b obtained from relationsof lenght – weight Eastern Little Tuna is 2,963. A growth pattern of Eastern Little Tuna isnegative allometric with an equation growth W=0,00002L2,963. The highest and the lowestvalue of factor condition are 0,40 and 2,11. The rate of total mortality (Z) Eastern Little Tunais 2,097 year-1 with natural mortality rate (M) 0,30 year-1 and fishing mortality rate (F) 1,79year-1 thus the rate of exploitation is obtained with the amount 0,85 and the value of thisexploitation rate has exceeded the value of the optimum exploitation, which is 0,5.Keywords: Eastern Little Tuna, Growth, Mortality, Malacca Strait
HUBUNGAN PANJANG BOBOT DAN REPRODUKSI IKAN KEMBUNG LELAKI Rastrelliger kanagurta (Cuvier, 1817) DI PERAIRAN SELAT MALAKA TANJUNG BERINGIN SERDANG BEDAGAI SUMATERA UTARA Julia Syahriani Hsb; Mohammad Basyuni; Ani Suryanti
AQUACOASTMARINE Vol 3, No 4 (2015): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Activities the continuous mackerel of catch will be decreasing fish stock in the nature. The research aims to know relationship among length weight, factor of condition, reproductive, first size riping ovum and apex spawning of mackerel. This research was conducted in Malacca strait Tanjung Beringin Serdang Bedagai from March until May 2015 based on the location of fishing by fishermen divided into three stations at a distance of 3.704 meters from the beach and the distance between each station was 1.852 meters. Water and fish sampling was carried out for one month. The results showed that length weight was positive allometric. Factor conditions were 1,12 – 1,18 and classified as less flat. Sex ratio of fish was ideal conditions. Value of gonad maturation index between female was 2,87% and male was 2,18% respectively. Fecundity was 30.250 – 57.240 granule. First size riping ovum is 164 – 170 mm. The mackerel has a apex spawning in April.Keywords : Mackerel, Spawning, Factor condition, Ovum
ANALISIS NILAI EKONOMI USAHA TAMBAK NILA, BANDENG DAN UDANG WINDU TERHADAP KESEJAHTERAAN PETAMBAK DI KAWASAN MANGROVE KELURAHAN NELAYAN INDAH, MEDAN LABUHAN Meia Ester Sela Ginting; Yunasfi Djayus; Febrina Arli
AQUACOASTMARINE Vol 3, No 4 (2015): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Village Nelayan Indah is community conduct farming in mangrove areas that affect the welfare of farmers. The focus of research are to see mangrove population, economic value analysis of the level of tilapia (Oreochromis niloticus), milkfish (Chanos chanos), and tiger shrimp (Penaeus monodon) with welfare of farming. The method used purposive sampling (intentionally). Based on the research object are the society with the primary livelihood as farmers from one of these commodities in the mangrove areas of Village Nelayan Indah in April until May 2015. Mangrove populations were analyzed by the method of line transect 2 census pioneered. Economic value analysis are based on a detailed questionnaire to see income, benefit cost ratio (BCR) and the payback period (PP) and the level of welfare in quantitative and descriptive. The results of the study indicates that are mangrove population in lines 1, 2 are Rhizophora apiculata mangrove populations and the lowest result in the lines 1, 2 are Avicennia alba. Analysis of the economic value of the tilapia ponds income Rp.261.149.000 hectares per year with a value of BCR 7,61 and 0,11 years of PP grades. Milkfish revenue of Rp.192.215.617 hectares per year with a value of 11,04 and PP 0,17 BCR Year. Shrimp farm income of Rp.125.183.133 hectares per year as well as the BCR 7 with PP of 0,39 years. The level of welfare of tilapia farmers more prosperous than the two other commoditiesKeywords: fishpond economic, welfare, mangrove

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