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Aquacoastmarine
Published by Universitas Sumatera Utara
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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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KANDUNGAN LOGAM Pb DI SUNGAI DELI PROVINSI SUMATERA UTARA (The content of Pb metal in Deli River, North Sumatera Province) Paulus Surbakti; Pindi Patana; Riri Ezraneti
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

Water is a natural resources that supplies the needs of many peoples life, so it certainly to be protected for human and other living organisms. Industrialization and rapid population growth, had a negative impact on the quality and the existence of natural resources and the environment, such as pollution of heavy metal. This research aims to analyze the content of Pb in the middle and lower Deli watershed and to determine the Deli water quality based on water quality standards.This study was conducted on July until August 2013 at Deli watershed of North Sumatra province. The number of point observed station are 4 stations . The aquatic parameters measured were physic and chemistry, concentrations of heavy metals Pb and Cu in the water column using Atomic Absorption Spectrophotometry ( AAS ) .The results showed Pb concentrations ranged from 0.079- 0.408 mg/l. This result shows that heavy metal of Pb in Deli watershed has exceeded the quality standard.Keywords : heavy metals Pb
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
UJI TOKSISITAS PELEMBUT PAKAIAN TERHADAP BENIH IKAN MAS (Cyprinus carpio L.) Fabric Softener Toxicity Test Against Goldfish Seed (Cyprinus carpio L.) Shusi Novita Siregar; Irwanmay Irwanmay; Rusdi Leidonald
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

Solution of fabric softener contained cationic surfactant by type quaternary ammonium chloride compounds that harm aquatic life and the environment led to the death of fish. This reaserch intend to determine the level of attack power and influence of fabric softener toxicity to carp seed, this research was conducted on July − November 2013 in the Department of Agriculture and Marine Medan. Stages of testing include : a preliminary test, a definitive test to determine the LC50 until 96 hours and sublethal tests with various concentrations. The results showed of the preliminary test studies have upper threshold value ( N ) of 100 ppm and below the threshold value ( n ) 75 ppm. Test results obtained definitive 96 hour LC50 value of 87.10 ppm. The test results on the highest survival sublethal concentration of 2.61 ppm treatment that is equal to 80 % while the lowest survival at 7.84 ppm concentration and 46.66 %, the highest feed efficiency at treatment concentrations of 2.61 ppm is equal to 4.98 % and the lowest in the treatment of 1.55 % 7.84, and the highest growth rate in the treatment concentration of 2.61 ppm is 0.15 % while the lowest at treatment concentrations of 7.84 ppm at 0.05%. Water quality parameters were observed during the definitive test decreased DO 2.0 − 6.4 mg / l, the temperature increased 27.1 − 30.20C and pH decrease during each treatment concentration of 3 − 6.6 . Water quality parameters at sublethal test that does not decrease drastically DO range 5.2 − 7.6 mg/l, temperature range 27 − 290C and a pH range of 3.4 − 7.5 .Keywords : Fabric Softener, Cyprinus carpio L., toxicity
Uji Toksisitas Akut Limbah Cair Industri Tahu terhadap Ikan Patin (Pangasius sp.) (Acute Toxicity Test of Tofu Industrial Wastewater for Catfish (Pangasius sp.)) Parlinggoman Sianturi; Miswar Budi Mulya; Riri Ezraneti
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

Tofu industry is an industry that has grown rapidly in the society. Most of the tofu industry drain directly wastewater into the water. Changes in chemical and physic parameters of water will disrupt the organism life in it, one of the types of organisms is catfish (Pangasius sp.). Toxicity tests are used to determine the status of tofu industrial wastewater for the mortality rate of catfish. Therefore, the required value of Lethal Concentration (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 the LC50 value of tofu industrial wastewater for the catfish and the concentration effect of tofu industrial wastewater for the mortality rate of catfish. The study was conducted from February until March 2014. Research procedures include preliminary testing, toxicity testing, and probit analysis. Toxicity testing of tofu industrial wastewater for catfish mortality rate in treatment concentration 2.29% kill 36.67% of the fish, 2.63% kill 46.67% of the fish, 3.02% kill 50.00% of the fish, 3.47% kill 56.67% of the fish, and 3.98 % kill 63.33% of the fish. The investigations showed results that LC50 value for 96 hours of tofu industrial wastewater to the catfish (Pangasius sp.) is 28839.93 ppm (2.88%).Keywords : Catfish, LC50, Tofu Industry, Wastewater
ANALISIS KONVERSI HUTAN MANGROVE DI KECAMATAN GEBANG KABUPATEN LANGKAT (Conversion Analysis of Mangrove in District Gebang, Langkat) Rika Wirani; Yunasfi Djayus; Zulham Apandy Harahap
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

Mangrove is continuously under pressure due to various human activities. Lack of understanding about the importance of mangrove ecosystems and the increasing of life needs has sparked a mangrove conversion occurs. This research analyzed the conversion of mangrove in the district gebang, langkat from 2003 to 2012 using image of landsat ETM 7+ satellite of 2003 year and 2012 year and its impact to the economic situation of the fisherman. The landuse in district Gebang are ground, mangrove, rice field, pond, plantations, dryland, farming bush, residence, and water. The landuse of mangrove in the district Gebang decreased by 79,96% from 2003 to 2012. Extensive mangrove which have been converted into ponds is 276,96 ha, 1.520,46 ha of plantations, and 313,10 ha of farming bush. The catches of fisherman has decreased into 30,71% and fishing income decreased into 51,37%.Keywords : Land conversion, mangrove, landsat ETM 7+
STUDI KLOROFIL-a DI KAWASAN PERAIRAN BELAWAN SUMATERA UTARA Study of chlorophyll-a around sea of Belawan, North Sumatera Amanda Paramitha; Budi Utomo; Desrita Desrita
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

There many activities around marine Belawan alters the marine water quality of Belawan. The information and understanding of environmental change are indispensable in ecosystem monitoring efforts. This research aims for knowing the study of chlorophyl-a, and the relationship between physical and chemical factors was done on Desember 2013 – February 2014 in sea of Belawan, North Sumatera. The sampling was determined based on four location which is in various activities. There are 4 sampling in 3 months. The analysis of other factor, such as water temperature, pH, brightness, salinity, DO, nitrate, phosphate, and chlorophyll. The result of research showed there was a relation of physical chemical factors in sea of Belawan, North Sumatera. The range of the chlorophyll-a is 1,93 – 5,96 mg/ m3. The highest concentration of chlorophyll-a was located in floating net cages in the range of 4,06 – 5,96 mg/m3. The lowest concentration of chlorophyll-a was located in offshore in the range of 1,93 – 2,53 mg/m3. The average value chlorophyll top are on the location 4 and the lowest in the location.Keywords : Chlorophyll-a, sea of Belawan
EFEKTIVITAS EKSTRAK DAUN MAHKOTA DEWA (Phaleria macrocarpa) SEBAGAI ANTIBAKTERI UNTUK MENCEGAH SERANGAN BAKTERI Aeromonas hydrophila PADA IKAN GURAMI (Osphronemus gouramy) Henny Christien; Yunasfi Djayus; Riri Ezraneti
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

Disease prevention in fish using chemicals or antibiotics lead to microbial resistance. One of alternative to control the disease is to use plant extract. This study aimed to assess the antibacterial potential of mahkota dewa (Phaleria macrocarpa) leaf extract against disease causing bacteria Aeromonas hydrophila or Motil Aeromonas Septicemia (MAS) in fry of gouramy. The research method used was an experimental laboratory through ini vitro tests and 48-hour LC50 tests. The in vitro tests used 5 treatments and 2 replications, while the 48-hour LC50 for the test as many as five treatments and three replications. Treatment for in vitro test was a paper disc soaked in a solution of mahkota dewa leaf extract at a concentration of 250 ppm, 500 ppm, 600 ppm, 750 ppm, and the control (0 ppm), then placed on an agar medium that had been overgrown with Aeromonas hydrophila, and then incubated at 370C for 24 hours. Treatment of 48-hour LC50 test remedy, namely fry 4-6 cm sized gouramy marinated in mahkota dewa leaf extract solution at a concentration of 0%, 2%, 4%, 6%, and 8% for 48 hours. Data were analyzed descriptively. In vitro test results showed that mahkota dewa leaf extract at a concentration of 2% - 8% as an antibacterial potential of Aeromonas hydrophila with inhibition zone diameters ranging from 13,53 to 20,5 mm. The test results showed 48-hour LC50 of Gouramy fry mortality by 50% for gouramy fry is soaked in a solution of mahkota dewa leaf extract at a concentration of 600.536 ppm, based on EPA Probit analysis. The concentration of mahkota dewa leaf extract is safe for gouramy fry is 10% from the 48-hour LC50 value, that is 60.0536 ppm.Keywords : Aeromonas hydrophila, fry of Gouramy, mahkota dewa leaf
KEBIASAAN MAKAN IKAN BILIH (Mystacoleucus padangensis Bleeker) DI SUNGAI NABORSAHAN, KECAMATAN AJIBATA, KABUPATEN TOBA SAMOSIR, SUMATERA UTARA Hafiz Muhammad; Yunasfi Djayus; Ani Suryanti
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

The decline of fish populations bilih (Mystacoleucus padangensis Bleeker) caused by fishing activity and the availability of natural food in the River Naborsahan closely related to the physico-chemical factors of the river. The purpose of this study was to determine the feeding habits of fish bilih (Mystacoleucus padangensis Bleeker). This study was conducted in June - July with purposive random sampling method. The results showed that the natural food of bilih fish is phytoplankton from the genus Rhizosolenia, Synedra, Aulacoseira, Gonatozygon, Pinnularia, Closterium, Surirella, Gyrosigma, Melosira, Oscillatoria and zooplankton from genus Creseis, tubifex and Daphnia. Natural food that became the main food of bilih fish is phytoplankton from the genus Synedra with IP (Index Preporedence) > 40% fish is 98.9%. Natural feed becomes additional food of bilih fish <4% that is Rhizosolenia, Aulacoseira, Gonatozygon, Pinnularia, Closterium, Surirella, Gyrosigma, Melosira, Oscillatoria, Creseis, Tubifex and Daphnia. Measurement results of physico-chemical factors water good enough for the availability of natural food and life of bilih fish (Mystacoleucus padangensis Bleeker).Keywords: Fish bilih (Mystacoleucus padangensis Bleeker), Food Habits, Naborsahan River.
LAJU PERTUMBUHAN DAN KELANGSUNGAN HIDUP BENIH IKAN BOTIA (Chromobotia macracanthus) DENGAN PAKAN CACING SUTERA (Tubifex sp.) Growth Performance and Survival Rate of Botia Larvae (Chromobotia macracanthus) with Feeding Tubifex Worms (Tubifex sp.) Romi Pindonta Tarigan; Yunasfi Djayus; Indra Lesmana
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

Botia (Chromobotia macracanthus) is a freshwater fish that are having economic value is important because it has high sale value, especially in the ornamental fish market in North Sumatra. Life food is an important factor in the cultivation of ornamental fish. The research was conducted to determine the effect of feeding Tubifex worms (Tubifex sp.) on the growth performance and survival rate of Botia larvae. Tubifex worm culture do by using a wooden box with a recirculation system and the maintenance of Botia larvae done with volume 72 liter aquarium in a closed room.Experimental design using a completely randomized design with 5 treatments with 3 replications, as follows; 1) The Tubifex worms culture given chicken manure fermentation, 2) The Tubifex worms culture given cow manure fermentation, 3) The Tubifex worms culture given sheep dung fermentation, 4) Tubifex without treatment, 5) Pellet ornamental fish. The survival rate was 100 % in each treatments. Feeding the Tubifex worms are cultured with sheep dung fermentation gives the best results on the survival rate (SR), the absolute length (L), absolute weight (W), and daily growth rate (GR), respectively 1.02 cm, 0.91 g, and 2.57% for 30 days of maintenance.Keywords: Artificial feed, Botia, Tubifex.
PENGARUH PEMBERIAN PUPUK EKSKRESI CACING TANAH (KASCING) TERHADAP KELIMPAHAN Nannochloropsis sp. SEBAGAI PAKAN ALAMI IKAN BUDIDAYA Rina Marito Daulay; Pindi Patana; Indra Lesmana
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

The current of aquaculture development is not accompanied with sufficient fry supply due to some constraints and difficulties in the supply of life food. The life food culture Nannochloropsis sp. by using vermicompost fertilizer has never been used before, while the vermicompost contains nutrient required by cells of Nannochloropsis sp. to support the growth and reproductions. The purpose of this research is to know the influence of the vermicompost fertilizer treatments on the abundance of the cells Nannochloropsis sp. and how much the optimum concentration. This research was conducted in Balai Budidaya Air Payau (BBAP) Ujung Batee, Banda Aceh. The threatment of life food culture was done with 10 liters volume of water about 10 days. Parameter were observed are the growth of abundance Nannochloropsis sp. cells and quality of water. The used by completely randomized design with 5 treatments and 3 times repeatitions. Those 5 treatments are as follows the control treatment with technical fertilizer, 0 ppm (without treatment vermicompost), 50 ppm, 100 ppm, and 150 ppm. The treatments vermicompost fertilizer is effect on the abundance Nannochloropsis sp., the optimum concentration 100 ppm and the medium abundance in day 5 with density 6.895.000 cells/ml.Keywords : Nannochloropsis sp., vermikompost, abundance

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