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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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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
Pengaruh Padat Tebar Tinggi Dengan Penggunaan Nitrobacter Terhadap Pertumbuhan Ikan Lele (Clarias Sp.) Effect of Stocking Density with Adding Nitrobacter on Growth of Catfish (Clarias sp.) Fenlya Meitha Pasaribu; Syammaun Usman; Rusdi Leidonald
AQUACOASTMARINE Vol 4, No 2 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Catfish is one of the freshwater fishery commodities whose demand is increasing in Indonesia. Intensive cultivation is required to meet the market demand. Intensive cultivation can be done by optimizing the stocking density. This study aimed to determine the effect of added Nitrobacter with high stocking density system on the survival, height growth and weight growth of catfish (Clarias sp.) As well as to determine the maximum stocking density of catfish with the average length of 6 cm and 1.5 gram in average weight. 450 catfish were used. The study was conducted at Laboratory of Aquaculture, Water Resource Management, Faculty of Agriculture, University of Sumatera Utara, Medan in June until July 2016. The container were used are 9 aquarium size of 60 cm x 40 cm x 40 cm with a volume of 72 liters each aquarium. The parameters were observed during 42 days of observation are; survival, weight growth and length growth. During the study, fish were fed with artificial feed as much as 5% of body weight per day. The feeding frequency are 3 times a day which are at 10:00, 14:00, 18:00. This study used completely randomized design (CRD) with 3 treatments, those are stocking density of 600 individuals / liter (P1), 700 fish / liter (P2) and 800 fish / liter (P3) and repeated 3 times. The P1 treatment showed the best score at weight growth rate and length growth rate in the amount of 40,70 gram and 12,63 cm. The P3 treatment showed the lowest weight growth rate and length growth rate that is equal to 38,74 gram and 12,18 cm. Stocking density did not significantly affected the length growth rate, weight growth rate and survival of fish.Keywords : Clarias sp., Growth, Stocking Density, Survival
ANALISIS VEGETASI DAN POLA SEBARAN SALINITAS DI EKOSISTEM MANGROVE PERCUT SEI TUAN KABUPATEN DELI SERDANG SUMATERA UTARA (Vegetation Analysis and Distribution Pattern of Salinity in Mangrove Ecosystem Percut Sei Tuan, Deli Serdang Regency, North Sumatera) Muhammad Dafikri; Yunasfi Djayus; Zulham Apandy Harahap
AQUACOASTMARINE Vol 4, No 2 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The decrease in mangrove area by 30-50% over the past half century provides functionally estimates that mangroves will be lost. Utilization of mangrove ecosystems increasingly large can cause loss of quality and physical function of mangroves, it is feared would disrupt ecological conditions and mangrove vegetation. This study aims to assess the condition of mangrove vegetation of density, frequency, dominance and diversity index mangrove species, to study the distribution pattern of salinity found in mangrove areas and examines the relationship between salinity of the mangrove species that dominate in the Mangrove Ecosystem Percut Sei Tuan Deli Serdang. The technique of taking a vegetation analysis performed using line transect sampling techniques or so-called squared (quadrat sampling technique) to determine the three stations that have each 3 plots and taking 30 points in all three observation stations salinity. This study using ArcGIS 9.3 software to create distribution maps of salinity. The results showed that the value of diversity index mangrove tree on the first station is 2.01, at the second station is 1.24 and at the third station is 1.64, so that the third grades of each stations in the criteria for being classified. Overview of the distribution of salinity produces a range of salinity fluctuated relatively small at between 23 - 24.5 ‰, 24.6 - 26.1 ‰, 26.2 - 27.6 ‰, 27.7 - 29.1 ‰ and 29.2 - 30.6 ‰ contained in all three observation stations.Keywords: Vegetation Analysis, Distribution Salinity, Mangrove Ecosystem
POTENSI EKSTRAK KULIT BATANG Rhizophora mucronata SEBAGAI ANTIBAKTERI UNTUK MENANGGULANGI SERANGAN BAKTERI Aeromonas hydrophila PADA BENIH IKAN GURAMI (Osphronemus gouramy) Ellizabet Nababan; Dwi Suryanto; Febrina Arli
AQUACOASTMARINE Vol 4, No 2 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Motile Aeromonas Septicaema (MAS) disease is a bacterial disease effecting of gurami fish of culture, seeds and adults. One alternative to prevent the disease is to use extract of plant. This study aimed to know the effectiveness of R.mucronata bark extract in decresing MAS in gurami seeds in vitro and in vivo, and to determine its LC50 in the fish. Extraction of the bark was done using solvents such as methanol, ethyl acetate and n-heksane. LC50 assay of the extract was done to gurami seeds for 48 hours. The extract was assayed to gurami seeds to know the fish tolerance. Assay on ability of the extract to decrease A.hydrophila growth was conducted, by dropping the extracts on disc blanc and putting the disc into the bacterial lawn. The result showed the extract methanol of the bark was more effective in inhibiting grow of A.hydrophila, however its ability in reducing the disease was least. LC50 of the methanol was in 62,6 ppm.Keywords: Aeromonas hydrophila, antimicrobial activity, Rhizophora mucronata, Seeds Gurami
STUDI TUTUPAN KARANG DI PULAU JANGGI KECAMATAN TAPIAN NAULI KABUPATEN TAPANULI TENGAH PROVINSI SUMATERA UTARA Study of Lifeform Coral in Janggi Island Tapian Nauli Subdistict District of Tapanuli Tengah, North Sumatera Province Nanda Rizki; Hasan Sitorus; Zulham Apandy
AQUACOASTMARINE Vol 4, No 2 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

NANDA RIZKI. Study of Lifeform Coral in Janggi Island Tapian Nauli Subsistrict, District of Tapanuli Tengah, Sumaterea Utara. Under Academic Supervision by HASAN SITORUS and ZULHAM APANDY HARAHAP.Janggi Island at Tapian Nauli subdistrict, District of Tapanuli Tengah is one small island and a part of Mursala Island as the main island. The aims of the study are to analize the percentage of coral covered area and the condition of coral reefs ecosystem in the Janggi Island. The research used survey method by using line intercept transect (LIT) in two research stations with line transect 70 meters and three replications in each transect. Guidelines for measuring the condition of coral refers to Keputusan Badan Pengendalian Dampak Lingkungan Hidup No. 47 of 2001. The results showed the condition of coral reefs in the Janggi island was good health category with coral covered area of 56,93%. The result increased if it compared to monitoring that conducted by Marine and Fisheries Department of North Sumatera in 2012 (46,83%). The lifeform coral percentages were included into the category Hardcoral Non-acropora to cover a percentage of 39,73% at the first station and 46,20% in the second station, which was dominated by coral massive (CM).Keywords: coral covered area, Janggi Island, Tapanuli Tengah
ANALISIS KESESUAIAN DAN DAYA DUKUNG KAWASAN WISATA PANTAI LHOKNGA KECAMATAN LHOKNGA KABUPATEN ACEH BESAR Analysist of Suitability and Carrying Capacity of Lhoknga Beach Tourism Lhoknga Subdistrit Aceh Besar District Taufiq hidayat; Hasan Sitorus; Eka Budiyulianto
AQUACOASTMARINE Vol 4, No 3 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Lhoknga beach is one of the beaches located in the subdistrict of Lhoknga, Aceh Besar District adjacent to Lampuuk beach and can be reached through the way Banda Aceh-Calang. Lhoknga beach is an attraction area for peoples of Banda Aceh, Aceh Besar and other areas that are nearby. This study was conducted in December 2014 to April 2015. Results showed that the water quality parameters in accordance with the quality standards based to Kep-51/MENLH/2004 for tourist activities. Region in Lhoknga Beach as a whole falls into the category of very suitable (S1) indicates the region had not barrier serious to apply the treatment given or only a barrier that did not significantly affect used and would not increase the input / level of treatment given to be used as a beach resort (recreation, swimming, sunbathing, water sports and fishing). The level of carrying capacity in the area of Lhoknga beach was 175 peoples/day or 1.225 peoples /week. The number of visitors who come to the coast about of 136 peoples / week.Keywords : Aceh Besar, Carrying Capacity, Lhoknga Beach, Suitability.
PENGARUH PERBEDAAN SUHU TERHADAP PERTUMBUHAN BENIH IKAN MAS KOI (Cyprinus carpio) (The influence of the temperature against the growth of the seed goldFish koi (Cyprinus carpio) Emaliana Emaliana; Syammaun Usman; Indra Lesmana
AQUACOASTMARINE Vol 4, No 3 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

One of the constraints in the effort coltivation koi fish is the level of survival rates low and the growth of fish relatively slow caused by the temperature is not stable, then koi fish become stress later died. This study was aimed to determine how big effect the temperature against the growth of the seeds of goldfish koi and to know the best temperature for the growth of the seeds of goldfish koi. The experimental design used is Completely Randomized Design (CRD) with four treatment and three test. The artificial fish fed as much as twice a day during the study 09.00 and 18.00. turn of the water as much as 10 % of the volume total of water. An early stage before done maintenance is the process of the adaptability for 30 minutes. Fish maintained for 30 days and every 10 days done measurement was covering long total, heavy and survival rates of fish. Measures of the quality of the water is temperature, pH and DO. The seeds of koi fish that maintained at a temperature 270C growth long absolute necessity of 11,74 cm and growth of weight range 8,61 - 10,36 gr. The value of survival rate is 100%. Parameters supporters quality of water oftained from pH changed 7,08 – 7,15 and DO changed 5,22 -5,61 mg/l. The temperature is maintenance koi fish still in a state of optimally that at temperature 270C. The treatment is temperature showed a significant effect against the growth of long and weights of koi fish and range of temperature for live of koi fish betweer 26-31oC but the best temperature for the growth is 27oC.Keywords: Temperature, The seeds of goldfish Koi, Growth, The survival
LAJU PRODUKTIVITAS PRIMER PERAIRAN RAWA KONGSI KECAMATAN PATUMBAK KABUPATEN DELI SERDANG PROVINSI SUMATERA UTARA (The Rate of Aquatic Primary Productivity in Kongsi Swamp Patumbak District of Deli Serdang Regency North Sumatra) Dinarta Pardede; Ternala Alexander Barus; 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 Rate of Aquatic Primary Prod uctivity (RAPP) is the formation of organiccompounds from inorganic compounds with the aid of sunlight and chlorophyll. KongsiSwamp is stagnant water system utilized by people for agriculture, livestock, fishingand waste disposal that cause a negative effect. This study aims to know RAPP in RawaKongsi and to know RAPP relationship with chlorophyll-a and physical chemistryparameters of water. The study took place from February until March 2016. Thesampling location choosed by purposive sampling which divided into 4 stations basedon different activities. The analysis were method water quality, chlorophyll-a, primaryproductivity and Pearson correlation. The results of water quality analysis showed thatKongsi swamp was moderately polluted based on the average of DO 2,28 mg/L, thevalue average of aquatic primary productivity Kongsi swamp 487,968 mgC/m3/hari,levels trophic based on the value average of chlorophyll-a 2.461 mg/m3 including thecategory of low fertility (oligotrophic). The correlation between primary productivitywith chlorophyll-a and chemical physics of water in Kongsi Swamp is very strong.Keywords: Aquatic Primary Productivity, Chlorophyl-a, Kongsi Swamp, Water Quality
ANALISIS USAHA TAMBAK UDANG PUTIH (Litopenaeus vannamei) DI CV SUNGAI RINDAM DESA LALANG KECAMATAN MEDANG DERAS KABUPATEN BATUBARA Veni Selvianty Zebua; Pindi Patana; Febrina Arli
AQUACOASTMARINE Vol 4, No 3 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

White prawn represent fishery com modity which in this time is liking by manypeople. This matter because of white prawn more free and hold up to disease and alsorepresent prospect of effort promising to cultivator. Effort prawn conducting at whiteprawn fishpond CV. Sungai Rindam in Countryside Lalang Sub-District of MedangDeras of District Batubara is the effort magnification with white prawn commodity.This research aim to know pattern exploiting of activity conducting and elegibilityfinancial of activity fishpond. This matter is done to study effort of conducting ifcompetent or not to be developed. Pursuant to analysis of effort which is can know thateffort White Prawn fishpond of Coast Perjuangan in District of Medang Deras is profit.Result of analysis elegibility of finansial is effort and sensitivity got value of NPVpositive, Net B/C> 1 and IRR > rate discount. Calculation of sensitivity analasysconducted to fry increase of price equal to 6,06% and degradation of price sell prawnequal to 2,89%, showing this effort still competent to be run. Result of which isobtained from this research indicate that the effort white prawn fishpond CV. SungaiRindam Sub-District of Medang Deras is competent to be run and developed.Keywords: White Prawn farming in Batubara, Analysis Elegibility of Effort.
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

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