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All Journal Aquacoastmarine Acta Aquatica: Aquatic Sciences Journal Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Electrices : Jurnal Otomasi Kelistrikan dan Energi Terbarukan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan AQUACOASTMARINE: Journal of Aquatic & Fisheries Sciences Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Desrita Desrita
Department Of Aquatic Resources Management, Agriculture Faculty University Of Sumatera Utara
Agriculture, Biological Sciences & Forestry Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences Other

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ANALISIS PERTUMBUHAN DAN LAJU EKSPLOITASI IKAN TONGKOL (Auxis thazard) YANG DIDARATKAN DI KUD GABION PELABUHAN PERIKANAN SAMUDERA BELAWAN SUMATERA UTARA Kartika Dewi; Ternala Alexander Barus; Desrita Desrita
AQUACOASTMARINE Vol 3, No 5 (2015): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Tuna fish (Auxis thazard) has high economic value in Medan. This research was conducted to investigate the impact of exploitation on Tuna fish stock and was from November 2014 to April 2015. Data obtained in KUD location Gabion Belawan. The objective of this research is to study stock condition of Tuna fish based on length-weight relationship, Von-Bertalanffy growth parameter, condition factor, mortality and level of exploitation. Total length data was measured from 555 fish the average of total length was from 183-402 mm. Separation of cohort length groups using Bhattacharya method produced four length frequency. Growth coefficient (K) was 0.38 per year, L infinity (L∞) 411.60 mm and t0 – 1.42 per year. Based on the long relationship expressed heavy growth patterns swordfish in the waters of the Strait of Malacca is alometrik negative, the value of the average condition factor 0,51 – 2,59, it showed the fish in suitable circumstances. Total mortality rate (Z) is 1,95 per year, natural mortality (M) 0,43 per year, and the rate of cacth mortality (F) 1,46 per year to obtain the exploitation rate of 0,74. The exploitation rate value has exceeded the optimum value of 0,5Keywords : Auxis thazard, Growth, Mortality, Malacca Strait
UJI TOKSISITAS AKUT LIMBAH CAIR INDUSTRI TAHU TERHADAP IKAN BAWAL AIR TAWAR (Colossoma macropomum) (Acute Toxicity Test of Tofu Industrial Wastewater for Freshwater Pomfret (Colossoma macropomum) Mars Sella Sinurat; Hesti Wahyuningsih; Desrita Desrita
AQUACOASTMARINE Vol 4, No 1 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Changes of chemical and physical parameters of water will disrupt theorganisms live in it, one of the types of organisms is freshwater pomfret (Colossomamacropomum). Toxicity tests are used to determine the status of tofu industrialwastewater for the mortality rate of freshwater pomfret. Therefore, the required value ofLethal Concentration 50% (LC50) 96 hours which is the concentration that causes 50%of test animals died within 96 hours of exposure time. This study aims to determine theLC50 value of tofu industrial wastewater for the freshwater pomfret and theconcentration effect of tofu industrial wastewater for the mortality rate of freshwaterpomfret. The study was conducted from July until August 2015. Research proceduresinclude preliminary testing, toxicity testing, and probit analysis. Toxicity testing of tofuindustrial wastewater showed the mortality rate of freshwater pomfret in treatmentconcentration. Treatment concentration 1,31% kill 20% of the fish, 1,72% kill 36,67%of the fish, 2,26% kill 53,33% of the fish, and 2,97 % kill 83,33% of the fish. Theresults showed that LC50 value for 96 hours of tofu industrial wastewater to thefreshwater pomfret is 20575,049 ppm (2,05%).Keywords : Freshwater Pomfret, Tofu Industry, LC50, Wastewater
EFEK AKTIVITAS MASYARAKAT TERHADAP KEBERADAAN IKAN CENCEN (Mystacoleucus marginatus) DI SUNGAI SIBIRU-BIRU KABUPATEN DELI SERDANG PROVINSI SUMATERA UTARA Charo Lina Kaban; Hesti Wahyuningsih; Desrita Desrita
AQUACOASTMARINE Vol 4, No 1 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Utilization of the river as a waste water disposal is the impact of community activities that can cause environmental changes that would be bad for the life aquatic organisms. The changing quality of the waters is affecting the lives of organisms, including fish. The existence cencen fish (Mystacoleucus marginatus) in the waters is largely determined by the physical and chemical conditions of the waters. The aim of this research is to analyze the density of cencen fish and water quality. This research was on April-June 2015 in Sibiru-Biru river. Samples were taken from four observation stations and at each station observations performed 3 repetitions. In order to determination sample location is using “Purposive Sampling” and sample analyzed water quality. The result of research in Sibiru-Biru river have been found one class from ordo Cypriniformes is for about 92. The highest population fishes density Cencen fish with grade 0,45 individuals/m2. Meanwhile the lowest population fish density Cencen fish is about 0,08 individuals/m2. The water quality of Sibiru-Biru River was polluted category. Based on the relationship expressed heavy growth patterns of Cencen fish in Sibiru-Biru river growth months are negatively allometric, meaning that the growth of fish length cencen more dominant than the growth in weight.Key words : Density, Pollution Levels, and Growth.
KEANEKARAGAMAN PERIFITON DI SUNGAI BELAWAN KECAMATAN PANCUR BATU KABUPATEN DELI SERDANG PROVINSI SUMATERA UTARA Diversity of Periphyton in the Belawan River Subdistrict Pancur Batu Regency Deli Serdang North Sumatera Camelina Simbolon; Miswar Budi Mulya; Desrita Desrita
AQUACOASTMARINE Vol 4, No 1 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Activities that occur around Belawan River will generate waste and impact on the physical and chemical factors that affect the aquatic organisms that periphyton. This study aims to specify the diversity of Periphyton in the Belawan River and to specify condition Belawan River judging from the chemical physics factors. Furthermore, Physical, chemical and Biologycal parameters was observed factors of the temperature, flow velocity, transparency of waters, pH, TSS, DO, BOD5, nitrates, orthophosphates and Diversity of Periphyton. The observations were made three times in three the research station. Sampling taking carried is three time repetitionon each station. Based on the result acquired that index diversity of periphyton ranged between 2,72 to 2,84 ind/cm2 and the Abundace of periphyton ranged between 763 to 1684 ind/cm2. Temperatures value ranged between 26 to 29 oC, flow velocity ranged between 0,4 to 0,7 m/s, transparency of waters ranged between 25 to 50 cm, pH ranged between 7,3 to 7,6, DO ranged between 3,5 to 4,0 mg/l, BOD5 ranged between 1,4 to 2,8 mg/l, TSS ranged between 11,33 to 38,5 mg/l, nitrates ranged between 1,0 to 1,9 mg/l dan orthophosphates ranged between 0,03 to 0,078 mg/l. based on the Shanon’s index of diversity (H’) and physival-chemical factors in the Belawan River were classified as into mild pollution criterion.Keywords: Periphyton, Abundance, Diversity, River Belawan
DAYA SERAP MANGROVE Avicennia marina TERHADAP LOGAM BERAT KADMIUM (CD) DAN TIMBAL (PB) DI KAMPUNG NELAYAN KECAMATAN MEDAN BELAWAN SUMATERA UTARA Vinces Agriani Lase; Yunasfi Djayus; Desrita Desrita
AQUACOASTMARINE Vol 4, No 2 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Human and industry activities in Nelayan Village can be increasing the present of heavy metal in acuatiq environmental and can put on effect to aquatic organism. The purpose of this research is to analyze the content of heavy metals Cadmium (Cd) and Plumbum (Pb) on roots, barks, leaves and knowing the ability of A. marina in accumulating heavy metals. The sample was taken from Nelayan Village, District of Medan Belawan. The analysis of heavy metals Cd dan Pb is carried out in Balai Riset dan Standarisasi Industri Medan, by using the Atomic Absorption Spectrofotometer (AAS) method. The results of this research indicated that the heavy metal content of Pb in the roots, barks, and leaves is larger more than Cd. Based on the bioconcentration factor, the ability of A. marina in accumulate heavy metals Cd and Pb categorized low.Keywords : AAS, Avicennia marina, Cadmium (Cd), Heavy Metal, Plumbum (Pb)
EFEKTIVITAS EKSTRAK KULIT BATANG Rhizophora mucronata SEBAGAI ANTIBAKTERI UNTUK MENCEGAH PERKEMBANGAN BAKTERI Edwardsiella tarda PADA IKAN MAS (Cyprinus carpio L.) Ainul Mardiah; Dwi Suryanto; Desrita Desrita
AQUACOASTMARINE Vol 4, No 2 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

This study was aimed to determine antimicrobial potential of stembark extract of R. mucronata against bacterial pathogens E. tarda, to know the extract toxicity to gold fish (Cyprinus carpio. L), and to know the effect of the extract to fish survival rate. Antimicrobial assay of the extract was done using diffusion method, LC50 assay was conducted by putting the fish into chamber with extract concentration of 0, 25, 30, 50, and 75 ppm in water. Survivalship assay to the methanol extract was conducted at concentration of 2,86 and 3,93 ppm along with E. tarda inoculation. To examine stembark extract in inhibition disease caused by E. tarda, methanol extract of the stembark was used in this examination. Goldfish of 5 - 7 cm were subjected to be infected with E. tarda of 107 CFU/ml in intraperitoneal. The result showed that the methanol extract of the stembark was more effective in inhibiting grow of E. tarda. LC50 of the methanol extract was in 39,30 ppm. The methanol extract of 3,93 ppm showed to reduce E. tarda cell from 2,18 x 103 CFU/ml to 1,32 x 103 CFU/ml in gold fish. It showed that methanol extract of 3,93 ppm were not toxic to the fish shown by survival rate of 100%. Survival rate of goldfish treated with the methanol extract was high compared to that of E. tarda ((-) control). The soaking of stembark extract showed a significant effect (P<0.05) toward survival rate of goldfish infected by E. tarda.Keywords : Antibacteria activity, Edwardsiella tarda, Rhizophora mucronata, challenge test
PRODUKSI DAN DEKOMPOSISI SERASAH DAUN MANGROVE Rhizophora stylosa DI DESA PULAU SEMBILAN KECAMATAN PANGKALAN SUSU KABUPATEN LANGKAT SUMATERA UTARA Fina Fitriyani; Yunasfi Djayus; Desrita Desrita
AQUACOASTMARINE Vol 4, No 3 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Mangrove litter in the form of leaves, twigs, and other biomass, which fell into the foodsource of aquatic biota and nutrients that determine the productivity of marine fisheries. Objectiveof tudy was to determine the production rate of leaf litter and to measure the decomposition rate ofR. stylosa leaf litter. The study carried from March until May 2016 in Pulau Sembilan Village,Pangkalan Susu District, Langkat Regency, Sumatera Utara. Litter production determined by thelitter trap in each station mounted five container nets and decomposition rate determined by 18 bagsof litter bag each station with initial litter weight was 50 g. The highest production value found inthe station I was 70,24 g/m2/75days and the lowest R. stylosa leaf litter production value found inthe station II was 54,98 g/m2/75days. The highest R. stylosa leaf litter decomposition rate found at15thobservational day was 1,54 g/day with composition rate constant value (K) found in the StationI, II, III was 12,68, 10,76, and 10,46, respectively.Keywords: decomposition, mangrove litter, production, Rhizophora stylosa
HUBUNGAN KANDUNGAN NITRAT DAN FOSFAT TERHADAP PERTUMBUHAN BIOMASSA BASAH ECENG GONDOK DI RAWA KONGSI SUMATERA UTARA (Relations Nitrate and Phosphate on The Growth of Hyacinth Wet Biomass in Kongsi Swamp North Sumatra) Yessy Christanty; Ternala Alexander Barus; Desrita Desrita
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 rapid growth of water hyacinth and high durability made plant growth is extremely difficult to control. This study aimed to determine the effect of nitrate and phosphate content of the relationship to the gowth of biomass wet hyacinth different locations in the waters Rawa Kongsi during an interval of two weeks. The research was conducted in March to April 2016. Length parameter is water hyacinth plant height, weight parameter consist of fresh weight of water hyacinth, and parameter number consists of the amount of water hyacinth leaves. Water quality parameters measured were dissolved oxygen, pH, temperature, brightness, nitrate and phosphate. The results obtained through the measurement of dissolved oxygen water quality is 1,6 mg/l-4 mg/l, pH is 6,3-6,6, water temperature is 30ºC-32ºC, brightness values is 42-119,5 cm. Nitrate values at Station I, II, and III is 0,25-0,73 mg/l; <0,001-2,09 mg/l; <0,001-2,4 mg/l. Phosphate values at Station I, II, and III is <0,001-0,019 mg/l; <0,001-0,026 mg/l; <0,001-0,032 mg/l. At station III gives better results on the growth of biomass compared to treatment at another location. The highest growth of water hyacinth biomass is found in the observation of the 2nd with biomass wet is 70.6 g and relative growth rate is 3.56% g/day.Keywords : Nitrate, Phosphate, Rawa Kongsi, Water Hyacinth, Wet BiomassGrowth
PENDUGAAN POTENSI LESTARI KEMBUNG (Rastrelliger spp.) DI PELABUHAN PERIKANAN SAMUDERA BELAWAN SUMATERA UTARA (Potential Estimation on Sustainable of Mackerel Fish (Rastrelliger spp.) on Belawan Ocean Fishing Port North Sumatera) Putri Permata Sari Sirait; Mohammad Basyuni; Desrita Desrita
AQUACOASTMARINE Vol 4, No 4 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Highly market demand on Mackerel fish (Rastrelliger spp.) effected overfishing without controling by fishermen. The purpose of this research was to determine the potential of sustainable with optimum effort, utilization rates and insistence, sustainability and management of fish resources in Malacca Strait. The analysis of data compresed catches data and fishing effort of Mackerel last 10 years from the Belawan Ocean Fishing Port North Sumatera. The potential of sustainable prediction was performed with Fox model. Value Maximum Sustainable Yield (MSY) Mackerel fish was 6,276,538.129 kg / year with optimum effort was 7939.647596 trips / year. Average utilization rate of 70,39% with an average insistence rate (TAC) 179,49%, while allowable catch 150,1587365 kg/year. Based on the value of MSY and optimum effort Mackerel fish has been overfishing. While based on average utilization rate, Mackerel fish in Belawan aquatic was still in condihtion of solid catch.Keywords : Malacca Strait, Potential, Rastrelliger spp., Sustainability, Utilization
PENGARUH PENAMBAHAN PROBIOTIK PADA PAKAN TERHADAP PERTUMBUHAN DAN KONVERSI PAKANIKAN PATIN (Pangasius hypopthalmus) Effect of Probiotic in addition on Growth and Feed Conversion Ratio of Catfish (Pangasius hypopthalmus). Abdillah Parinduri; Syammaun Usman; Desrita Desrita
AQUACOASTMARINE Vol 5, No 1 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Catfish is consumption fish , with a chewy meat structure, easily separated with its thorns and low calorie content, 120 calorie each 3.5 ounce. Catfish are also used as ornamental fish in the aquarium with a shiny silver body color, as well as agile body movements make catfish widely favored ornamental fish lovers. The purpose of this study was to determine effect of probiotic in addition on growth and feed conversion ratio of catfish. This study used a Completely Randomized Design (CRD) with four treatments, namely, P0 (without the addition / control), P1( probiotic addition 1 g / kg), P2 (probiotic addition 2 g / kg), P3 (probiotic addition 3 g / kg ). The treatment P1 provides a significant influence on weight gain, but no significant effect on the length catfish. The treatment P1 is the best dose for the growth catfish with growth 8,54 cm long value and weight value 7,56 g and feed conversion ratio 0,82.Keyword: Catfish, Growth, Probiotics. FCR
Co-Authors Abdillah Parinduri Adriana Tarigan Ahmad Muhtadi Ahmad Muhtadi Ainul Mardiah Amanda Paramitha Anggi Abdur Rohim Anita Rahman Ayu Syahfitri Daulae Bill Maulana Bidawi Bill Maulana Bidawi BUDI UTOMO Camelina Simbolon Charo Lina Kaban Darma Bakti Darma Bakti Darma Bakti Darma Bakti David Putra P Situmorang Dean Amunike Dewi Roma Widya Dewinta, Astrid Fauzia Dian Puspitasari Dian Puspitasari Dian Puspitasari Dian Puspitasari DWI SURYANTO Eka Tri Rahayu Eryana Dhalia Drajad Ginting Eryana Dhalia Drajad Ginting, Eryana Dhalia Drajad Eunike Saron Meliala Fadhilah, Amanatul Fatimah Murni Febrina Rahmadanti Putri Fina Fitriyani Ginting, Sara Silva Beru Hasan Sitorus Hesti Wahyuningsih Huria Marnis Indah L. M Tambunan Intan Iksaura Ginting Ipanna Enggar Susetya Ipanna Enggar Susetya Ipanna Enggar Susetya, Ipanna Enggar Isten Sweno Tamba Jeni Ariyanti Julia Syahriani Hasibuan Kartika Dewi Khairunnisa M Mahrozi Sagala Mars Sella Sinurat Mikha Febryana Samosir Miswar Budi Mulya Mohammad Basyuni Muammar Muammar Muhammad Mukhlis Kamal Muhammad Mukhlis Kamal, Muhammad Mukhlis Mujtahidah, Tholibah Nanda Mutia Hardianti Orbita R. Dhuha Pindi Patana Putri Permata Sari Sirait Putri Widyawati RIDWAN AFFANDI Rina D’Rita Sibagariang Rina Sari Lubis Rusdi Leidonald Ruth Aprilyanti Napitupulu Sara Silva Beru Ginting Sari Marina Saragi Sinaga, Jessica Siregar, Rizky Febriansyah Siti Aisyah Siti Aisyah Siti Aisyah Sudoyo Lumban Tobing Syammaun Usman Tarigan, Adriana Ternala Alexander Barus Toibullah Siregar Vinces Agriani Lase Vindy Rilani Manurung Yenni Ningsih Siringoringo Yenni Ningsih Siringoringo Yenni Ningsih Siringoringo, Yenni Ningsih Yessy Christanty Yuli Wulandari Yunasfi Yunasfi Djayus Yunasfi Yunasfi yunasfi yunasfi Yunasfi, Yunasfi Yunus Afifuddin Zulham Apandy Harahap