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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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STUDI KANDUNGAN LOGAM BERAT TEMBAGA (Cu) DAN TIMBAL (Pb) DI PERAIRAN DANAU TOBA, PROVINSI SUMATERA UTARA (Study of Heavy Metal of Copper (Cu) and Lead (Pb) in Lake Toba, North Sumatera Province) Hiras Sucipto Tampubolon; Darma Bakti; Indra Lesmana
AQUACOASTMARINE Vol 1, No 1 (2013): JURNAL AQUACOASTMARINE VOLUME 1, NO 1, DESEMBER 2013
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The Purpose of Lake Toba were very diverse and required water qualityand fulled certain requirements. Otherwise, the used of the lake for the variousactivities of the society also gave impact to water quality degradation. Thisresearch were conducted from May to July 2013 in Lake Toba. This research usedPurpossive Random Sampling. There were 3 locations. Station I: Ajibata area,Station II: Haranggaol area and Station III: Porsea as the outlet of Lake Toba.Sampling activities were conducted once/month. This research aimed to knewheavy metal consentrate of Lead (Pb) and Copper (Cu) in water and sediment.This results showed indicated chemical physics parameter of Lake Tobastilled in the normal range. Concentrations of copper (Cu) in the water column ateach station in sequence 0.027 mg/l, 0.025 mg/l, 0.033 mg/l and the concentrationof lead metal (Pb) in the water column 0.039 mg/l, 0.014 mg/l, 0.029 mg/l. Whilemetal concentrations of copper (Cu) in sediments at each station in sequence1.092 mg/kg, 2.85 mg/kg, and 2.483 mg/kg and the concentration of lead metal(Pb) of 3,058 mg/kg, 3.592 mg/kg and 2,833 mg/kg. These results indicated theconcentration of heavy metal Cu and Pb in the water column had exceeded thequality standard, while concentrations of Cu and Pb in sediments had notexceeded the quality standard.Keyword: Cuprum (Cu), Lead (Pb), Toba Lake, Water Quality
Pengaruh Beberapa Jenis Pakan Terhadap Pertumbuhan Populasi Brachionus spp The Effect of Some Types of Food to Brachionus spp Population Growth Henny Fitriani S; Darma Bakti; Nurmatias Nurmatias
AQUACOASTMARINE Vol 2, No 2 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 2, DESEMBER 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Natural food that has a high protein content, easily digestible and small sized could be found in Rotifers genus Brachionus. However, due to the complication of cultivating, it has low rate production. The purpose of this research was to identify appropriate food and to idenfity maximum time of rotifer’s growth The methods used experimental and observation by directly observing the population growth of Brachionus spp. The experiment using a Completely Randomize Design with 4 treatment and 3 repetition. Four treatments include A (Brachionus spp + phytoplankton), B (Brachionus spp + soya bean production waste), C (Brachionus spp + baker”s yeast), dan D (Brachionus spp + vitamin B-Complex).The result showed that there were different population of Brachionus spp to each treatment. The highest population could be found in the soya bean production waste with population value 201x104 ind/ml. The highest population was reached in the eighth day. It revealed that Branchionus spp with high value could be produced in the soya bean production waste and the optimum time was in the eighth day after the spreading.Keywords: Brachionus spp, Population Growth, Soya Bean Production
STUDI KOMPOSISI MAKANAN IKAN SEPAT RAWA (Trichogaster trichopterus Pallas) di RAWA TERGENANG DESA MARINDAL KECAMATAN PATUMBAK Hadi Syahputra; Darma Bakti; Muhammad Riza Kurnia
AQUACOASTMARINE Vol 2, No 3 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 3, DESEMBER 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The fresh water in Indonesia has signifikan potential To be exploited as fish cultivation. Food as a component of waters is a ecology factor and have an important role in determining the rate of populations density, population dynamics, growth, reproduction and fish condition. This research aimed to know the composition of three spot gourami’s food ,and broad niche. This research was held on November-December 2013 In Marindal village of Swamp Subdistrict Patumbak, North Sumatera. This study use a grap nets, and fishing trap. The Data analysis was index of the stomach, The frequency of occurrence and niche.The result showed that foods found in fishes intestinal consists of 13 genera Bacillariophyceae, 4 genera Chlorophyceae, 1 genera Conjugatophyceae, 4 genera Coscinodiscophyceae, 3 genera Cyanophyceae,1 genera Euglenophyceae, 1 genera Filosia, 1 genera gastropoda. 1 genera monogonta, dan 1 genera secernentea. The main food is Bacillariophyceae. Chlorophyceae, Cyanophyceae, Conjugatophyceaeas were complements food and Coscinodiscophyceae, Euglenophyceae , Gastropoda, Filosia, Monogonta, Secementea were additives food.Keyword : Swamps, Food composition, Food habits, Trichogaster trichopterus, Patumbak.
ANALISIS KANDUNGAN LOGAM BERAT TIMBAL (Pb) DI AIR DAN SEDIMEN PADA ALIRAN SUNGAI PERCUT PROVINSI SUMATERA UTARA (Analysis Heavy Metal Lead (Pb) Content in water and sediment in Percut River, North Sumatera) Irfan Al Husainy; Darma Bakti; Rusdi Leidonald
AQUACOASTMARINE Vol 2, No 4 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 4, DESEMBER 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The river is one of the old used by man for a variety of activities in life, with the decline in the quality of human needs and river due to the presence of one of the various waste pollution accidents are heavy metals. This research aims to analyze the content of Pb and water quality standards based on raw fachir PP No 82 of 2001 by using the method tsoret and determine any metal Pb in sediment and ascertaining the quality of sediment based on raw IACD / CEDA. This research was carried out in November-Desember, 2013.The sample using methods purposive sampling by observing three stations. Parameters observed fisika-kimia waters, is the parameter pb on heavy metal concentration and sediments using atomic there water absorption spectrophotometry ( AAS). The level of heavy metals are on board in the highest station of a 0,08 mg / l based by Government Regulation no. 82 of 2001 and the quality of being inducted into a second. Calamity tackling in the metals concentration is found in sedimentary highest station of 2.7 mg / kg, based on environmnetal quality standars iacd / ceda and still classified as low, the sediment yet exceeding quality standards.Keyword : Storet Method and level of pollution Pb in water, sediment, Percut River
STUDI KOMPOSISI MAKANAN IKAN SEPAT RAWA (Trichogaster trichopterus Pallas) di RAWA TERGENANG DESA MARINDAL KECAMATAN PATUMBAK Hadi Syahputra; Darma Bakti; Muhammad Riza Kurnia
AQUACOASTMARINE Vol 2, No 4 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 4, DESEMBER 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The fresh water in Indonesia has signifikan potential To be exploited as fish cultivation. Food as a component of waters is a ecology factor and have an important role in determining the rate of populations density, population dynamics, growth, reproduction and fish condition. This research aimed to know the composition of three spot gourami’s food ,and broad niche. This research was held on November-December 2013 In Marindal village of Swamp Subdistrict Patumbak, North Sumatera. This study use a grap nets, and fishing trap. The Data analysis was index of the stomach, The frequency of occurrence and niche.The result showed that foods found in fishes intestinal consists of 13 genera Bacillariophyceae, 4 genera Chlorophyceae, 1 genera Conjugatophyceae, 4 genera Coscinodiscophyceae, 3 genera Cyanophyceae,1 genera Euglenophyceae, 1 genera Filosia, 1 genera gastropoda. 1 genera monogonta, dan 1 genera secernentea. The main food is Bacillariophyceae. Chlorophyceae, Cyanophyceae, Conjugatophyceaeas were complements food and Coscinodiscophyceae, Euglenophyceae , Gastropoda, Filosia, Monogonta, Secementea were additives food.Keyword : Swamps, Food composition, Food habits, Trichogaster trichopterus, Patumbak.
KEANEKARAGAMAN MAKROZOOBENTOS SEBAGAI INDIKATOR KUALITAS PERAIRAN DANAU SIOMBAK KECAMATAN MEDAN MARELAN KOTA MEDAN The Diversity of Macrozoobenthic as Water Quality Indicators of Siombak Lake District of Medan Marelan in Medan City Achmad Taher Daulay; Darma Bakti; rusdi leidonald
AQUACOASTMARINE Vol 3, No 1 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 1, PEBRUARI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Siombak is the artificial lake formed as the result of sand dredging activities in an area formerly known as Paya Pasir. The purpose of this study was to determine the water physical and chemical parameters of Siombak Lake in conjunction with water quality standards at PP 82 Tahun 2001 and Storet methods as well as the diversity of macrozoobenthic.This study was conducted from May to July 2014 at the Siombak Lake District of Medan Marelan in Medan City. The results obtained, the relationship between water chemical physical parameters of Siombak Lake in reference to water quality standards at PP 82 Tahun 2001 and Storet method states that the waters of Siombak Lake belong to the C class with the condition of water being moderately contaminated.The value of diversity index (H') of macrozoobenthic were obtained at each station study ranged from 1,091 to 1,480. The results of Pearson correlation analysis showed that temperature, COD, phosphate, light penetration and BOD5 have a positive correlation with the diversity of macrozoobenthic while salinity, DO and nitrate have a negative correlation.Keywords: Siombak lake, Diversity of Macrozoobenthic, Water Quality
ASPEK BIOLOGI REPRODUKSI IKAN LEMEDUK (Barbodes schwanenfeldii) DI SUNGAI BELUMAI KABUPATEN DELI SERDANG PROVINSI SUMATERA UTARA Siti Aisyah; Darma Bakti; Desrita Desrita
AQUACOASTMARINE Vol 3, No 1 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 1, PEBRUARI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The purpose of this research is to know the reproduction (the sex ratio, the gonad maturity level, the gonad maturity index, the size of the first mature gonad, fecundity, and the egg diameter). This research was done in May until June 2014 in four different locations by using census method. The sex ratio is consisting of 21 females fishes and 34 male fishes with a balanced sex ratio. The maturity gonad level for lemeduk female and male are found in I–IV. The gonad maturity index for female is 0,05% – 9,66% and for male is 0,05% – 9,75%. The size of the first mature gonad for male fish is 193 mm. The fecundity of female lemeduk is 5.345–54.372 eggs. The distribution of the female lemeduk egg diameter is 0,068–0,1202 mm.Keyword : Belumai River, Fish reproduction, Barbodes schwanenfeldii.,
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
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