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All Journal Jurnal Ilmu Pertanian KULTIVAR Aquacoastmarine JURNAL AGROTEKNOLOGI Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET)
Darma Bakti
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education Law, Crime, Criminology & Criminal Justice Social Sciences Other

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PEMBENIHAN IKAN MASKOKI (Carrasius auratus) DENGAN MENGGUNAKAN BERBAGAI SUBSTRAT Seedbed goldfish (Carrasius auratus) By Using Various Substrates Tommy Patria Marbun; Darma Bakti; Nurmatias Nurmatias
AQUACOASTMARINE Vol 3, No 2 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 2, APRIL 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Goldfish spawning is done naturally, so the success of the nurseries are still low. The success of spawning is influenced by several factors, including the handling of aircraft, particularly in stimulating technological parent spawning, egg incubation and larval treatment. How that can be done to stimulate the provision of parent fish are egg laying substrate. This study aims to determine the type of engaging subsrat eggs that give the best effect on the success of spawning goldfish (Carassius auratus). This research used experimental and observational methods, research design used was a completely randomized design (CRD). Tacks substrate type eggs are used as treatment, water hyacinth (Eicchornia crassipies), rafia rope and sugar falm fiber. Each treatment was repeated three times, so there are 9 units of the experiment. The parameters measured were the number of eggs, hatchability and larval survival goldfish (Carassius auratus). The results showed that the number of fertilized eggs on each substrate goldfish obtained F count>F table then H0 is rejected, it means that there are differences in the number of eggs on the substrate for all three treatments were used. Degree of hatching eggs goldfish sugar falm fiberbest is 63.70%, 61.20% and hyacinth rafia rope 45.79%. Water quality in this study have average values: pH 7 and temperature of 28 0C.Keywords: Carassius auratus, substrates, hatchability and survival
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
PENGUJIAN PERILAKU PREDATOR DAN ANTI-PREDATOR PADA IKAN LELE (Clarias gariepinus Burchell, 1822) TRANSGENIK F3 Testing Predator and Anti-Predator Behavior in African Catfish (Clarias gariepinus Burchell, 1822) Transgenic F3 Putri Widyawati; Darma Bakti; Desrita Desrita; Huria Marnis
AQUACOASTMARINE Vol 3, No 4 (2015): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

African catfish (Clarias gariepinus Burchell, 1822) transgenic containing Pangasius hypothalmus Growth Hormone (PhGH) has better performance compared with non-transgenic. However, before transgenic African catfish are released and utilized, their genetic impact on the natural environment must be examined. Predator avoidance is one of the major fitness traits determining potential environment risk. Transgene detection was performed using the PCR (Polymerase Chain Reaction) method and electrophoresis. Furthermore, the observation of the performance of growth including the growth of the length (the average length of the fish at the end - the average length of the fish at the beginning), the growth in weight (average weight of fish in the end – average fish at the beginning) and the survival rate (the number of fish that live in end / number of fish lived at the beginning). Results indicate that non-trangenic had better predator avoidance than transgenic African catfish. Non-transgenic has a better growth performance than transgenic African catfish and has a higher survival rate. Transgenic African catfish could be used for commercial aquaculture without affecting the natural environment because the increased susceptibility of transgenic to predators would most likely decrease or eliminate the transgenic genotype.Keywords: Clarias gariepinus, Transgenic, Environmental Risk
DAMPAK FISIK KENAIKAN MUKA AIR LAUT TERHADAP WILAYAH PESISIR KOTA MEDAN KECAMATAN MEDAN BELAWAN Physical Impacts of Sea Level Rise on Coastal Areas of Medan Belawan Tri Woro Widyastuti; Darma Bakti; Zulham Apandy Harahap
AQUACOASTMARINE Vol 3, No 5 (2015): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Tidal flood case is a problem that often happens in coastal areas. This happens because of the surface of the ground low or even the same compared to the surface of sea water. Besides that, this can also happens due to the increase of sea levels so that when there is a tide the sea water will come and flooded the coastal areas. The purpose of this research is to analyze the condition of tide in coastal areas of Medan city in Medan Belawan sub district and provide a map vulnerability to the increase of sea levels in Medan city. The number of increasing sea levels is obtained from the average of increase tidal per year. This number then will be associated with land use data, topography data, population data, and also direct interview with the local residents. After that, VCA method will be used based on PERKA BNPB N0. 2 the year 2012 to acquire the class vulnerability in each village and projected into the form of map with overlay method. The result of this research showed that the inundation area caused by the increase of sea levels always rising. Based from the VCA method and direct interview, resulted that most of vulnerability that happens in Medan Belawan sub district is belong to the high vulnerability. This result is also suitable with map vulnerability made by BNPB that stating North Sumatera is belonging in category of high vulnerability class. Therefore it needs further treatment to decrease the effect of the increasing sea levels.Keyword : Sea Level Rise, Rob, VCA method.
ANALISIS PENGELOLAAN KAWASAN PESISIR SECARA TERPADU DI KABUPATEN SERDANG BEDAGAI SUMATERA UTARA Analysis of Integrated Coastal Management in Serdang Bedagai North Sumatra Rasyid Kurnia Nasution; Darma Bakti; Rusdi Leidonald
AQUACOASTMARINE Vol 3, No 5 (2015): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Serdang Bedagai has lenght the coastline of 95km covers five districts namely, Pantai Cermin, Perbaungan, Teluk Mengkudu, Tanjung Beringin dan Bandar Khalifah. This area has great potential to be used agriculture, marine ecotourism, fisheries, and research. From every potential that exists in the Serdang Bedagai coastal, there are still some problems, especially coastal ecological damaged. This research aims to determine the strategic direction of integrated coastal management in Serdang Bedagai.The research was conducted in May-July 2014 in the coastal areas of Serdang Bedagai. This study used a purposive random sampling. There have 4 station observations, station 1 Bagan Kuala Village , station 2 Sentang Village, station 3 Sei Nagalawan Village, station 4 Pantai Cermin Kiri Village. Results of the analysis showed that the need for the arrangement of space utilization concepts in Serdang bedagai coastal in more detail, so that the land use of coastal areas can be managed with attention to the link ages between environmental aspects of coastal and local government of Serdang Bedagai need to issue policy directives based coastal management zone to create coastal management in an integrated manner.Keywords:Coastal Community, Coastal Management, Serdang Bedagai
KESESUAIAN PEMANFAATAN RUANG DAN DAMPAK KONVERSI MANGROVE TERHADAP PERUBAHAN KUALITAS PERAIRAN DI MUARA DESA BAGAN DELI KECAMATAN MEDAN BELAWAN Tawakal Kusuma; Darma Bakti; Rusdi Leidonald
AQUACOASTMARINE Vol 4, No 3 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The spatial planning is important to build a region in order to be a suistinable development. Thedeviation of space utilization which inappropriate with the spatial planning of local government willcause water quality degradation. Bagan Deli Village is a settlement with commonly high inhabitant, sothere has been deviation of space utilization, which cause degradation water quality by domesticpollution and loss of mangrove function as pollution controller. The aim of this research was toobserved deviation of space utilization in Bagan deli Village and impact of mangrove deforestationtoward water quality. it was held on March 2016 till May 2016. Water sampling done using purposivesampling method. Secondary data obtained from department of spatial and building such as MedanBelawan spatial planning map. From this research known there has been deviation of space utilizationsuch as irregulation use of river border and mangrove deforestation which has broke law 26 of 2007,law 1 of 2014 and local government regulation No. 13 of 2011, in addition there has been degradationof water quality became lightly polluted based on US-EPA (Environmental Protection Agency)calculation compared with water quality standard class III in ministerial decree No. 115 of 2003Keywords : Spatial plans, mangrove deforestation, water quality
Pengaruh Aktivitas Masyarakat Pesisir Terhadap Kondisi Ekosistem Mangrove di Pantai Desa Sialang Buah KecamatanTeluk Mengkudu Kabupaten Serdang Bedagai Ade Artia Gultom; Darma Bakti; Rusdi Leidonald
AQUACOASTMARINE Vol 4, No 4 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Sialang Buah village on the coastal areas that the population dominantly depent on the potential of the region for living, such as fishing, fish farming, settlement and the place tourism. There are problems from exploiting activities on the Sialang Buah village’s potential that affect the condition and existance of coastal ecosystem espencially mangrove. This research aims to determine the effect of community activities againts mangrove ecosystem condition at Sialang Buah village. It was conducted from may to june 2016. The transformation from structure of the land can be seen by the RGB on satelite imagery of Landsat 7 TM and Landsat 8 using Er Mapper 7.1 and arcgis 10, other than that, the sampling data was helped by questionnaries and interviews on public and tourists with purposive respondent, also using the socioeconomic survey method which is total value of scoring (TNS), the result showed that the land change are happend since 2003 to 2016, TNS obtained from socioeconomic factor is 200 indicating the factor influance the destruction of mangrove forest.Keywords: Community Activities, Coastal Communities, Mangrove, Sialang Buah Village
PARTISIPASI MASYARAKAT TERHADAP KEBERADAAN HUTAN MANGROVE DI DESA PERCUT KECAMATAN PERCUT SEI TUAN KABUPATEN DELI SERDANG (Society Participation Against the Existence of Mangrove Forest in Percut, Percut Sei Tuan Sub district, Deli Serdang Regency) Uswatun Nisa; Darma Bakti; Febrina Arli
AQUACOASTMARINE Vol 4, No 4 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Mangrove forest in Percut, Percut Sei Tuan sub district, Deli Serdang regency be degraded and damaged due to human activities and nature process. This study focused on community participation level toward the existence of mangrove forest in the Percut. The objective of study was to determine the existence of relationship between the identity of individual with community participation and the constraints that affect community participation. This study was conducted on April to May 2016. In taking the sample, the researcher used purposive sampling method which was done by conducted interviews and distributing questionnaires to community in mangrove areas, in Percut. The result showed that community participation toward the existence of mangrove forest is in average level with the 58.65% index. It means that there is no significant relationship between the identity of individual (age, number of family members, long living, and education) and community participation. So, the identity of individual such as income and job showed that they have significant relationship with community participation toward the existence of the mangrove forest.Keywords: Community Participation, Identity of Individual, Mangrove Forests
KAJIAN HIDROMORFOLOGI DANAU MARTUBUNG INDAH KECAMATAN MEDAN LABUHAN SUMATERA UTARA (Hydromorphology Study of Martubung Indah Lake Distric of Medan Labuhan North Sumatera) Dita Agnesia; Darma Bakti; Zulham Apandy Harahap
AQUACOASTMARINE Vol 5, No 1 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Lake is the water mass that occupied the basin wide and surrounded by land and can be formed both natural and artificial. Martubung Indah Lake is an artificial lake in PERUMNAS Griya Martubung, North Sumatera. Morphometry data is required in determining layers lake and also determined the lake ability can be used by the public. The purpose of this research was to discover the hydromorphometry aspects Martubung Indah Lake. This research was held from May to June 2016. Collecting data in this research were depth, stream flow, lake width, water quality, and around the lake. These data were processed using ArcMap. The result of this research Martubung Indah lake has 100.532,88 m2 wide scale, maximum length of 509,44 m, maximum width 197,34 m, circumference of 1301.52 m. Maximum depth of 1.5 m, with flat basic shape of the lake. The capacity of Martubung Indah lake which can be used bythe public is 68.657,77 m3 of water volume, stream flow around 0.09 L/s - 0.13 L/s, residence time of water ± 794 - 795 days, the brightness of the water approximately 0.10 to 0.55 m, and Martubung Indah Lake is including into the oligothropic lake.Keywords: Martubung Indah Lake, lake hydromorphometry, the status of the lake.
MAKANAN DAN KEBIASAAN MAKAN KEPITING BAKAU (Scylla serrata Forskal 1775) DI PERAIRAN KAMPUNG SENTOSA BARAT KELURAHAN BELAWAN SICANANG KECAMATAN MEDAN BELAWAN Nur Basani Pasaribu; Darma Bakti; Ani Suryanti
AQUACOASTMARINE Vol 6, No 2 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

One method to find out food and feeding habits of mangrove crabs (Scylla serrata) is to examine what types of foods contained in the stomach of mangrove crab and feeding period of mangrove crab. The purpose of this study are the type of food, to know the time period of feeding crab mangrove and to determine the effect of time on the mangrove crab in the mangrove ecosystem in Kampung Sentosa. Characteristic observed food type, meal time mangrove crab. Analysis of food data and feeding habits method to research data by using the formula FK, E, ISC and IP. The results of data analysis found the type of mangrove crab food in the form of shellfish, shrimp, fish, moss and mangrove leaves. Mangrove crabs are more active to find food at night, especially from 12 am to 12 pm. Periods of mangrove crabs do not depend on time because they can find food anytime.Keywords: Food, Mangrove Crab, Sicanang Belawan, Feeding Habits
Co-Authors Achmad Taher Daulay Ade Artia Gultom Ameilia Zuliyanti Siregar Ani Suryanti B. Sengli J. Damanik Daniel Happy Putra Desrita Desrita Dita Agnesia Febrina Arli Febrina Rahmadanti Putri Hadi Syahputra Henny Fitriani S Hiras Sucipto Tampubolon Huria Marnis Indra Lesmana Irfan Al Husainy Isman Nuriadi Isnar Reza Marheni Brahmana Marheni Marheni Mitra Musika Lubis Muhammad Dirga Patria Muhammad Riza Kurnia Nur Basani Pasaribu Nurmatias Nurmatias Putri Widyawati Rahmanta Rasyid Kurnia Nasution Ridwansyah Rusdi Leidonald Siti Aisyah Sri Fajar Ayu Tawakal Kusuma Tommy Patria Marbun Tri Woro Widyastuti Tri Yaninta Ginting Wiwik Yunidawati Zulham Apandy Harahap