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Aquacoastmarine
Published by Universitas Sumatera Utara
ISSN : -     EISSN : -     DOI : -
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 311 Documents
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PENGARUH FREKUENSI PEMBERIAN PAKAN PADA KONDISI GELAP TERHADAP PERTUMBUHAN DAN SINTASAN BENIH IKAN LELE DUMBO (Clarias gariepinus) Reza Alnanda; Yunasfi Djayus; Riri Ezraneti
AQUACOASTMARINE Vol 2, No 1 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 1, AGUSTUS 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The African catfish (Clarias gariepinus) is nocturnal, that is active at night or more like to dark place. The fry of catfish also requires high feeding frequency because the stomach is still small as a straight tube. This research was conducted to observe the effect of feeding frequency in dark condition to growth rate, survival rate and feeding efficiency of African catfish fry (C. gariepinus). The research was held on hatchery UPT Budidaya Dinas Pertanian dan Kelautan Kota Medan. Fry of catfish (C. gariepinus) were used average body size 8 - 9 cm and body weight 5 - 8 g, total fry cath fish 120 fish with stocking density 10 fish/washbasin. Twelve washbasin (50 liter volume) were used with aeration system and covered with black HD plastic layer to make dark condition for 24 hours. The parameter observed was 28 day were : growth rate, survival rate, feeding efficiency and water quality. Experimental design used a completely randomized design (CRD) with 4 treatment and 3 replications and further test use Least Significant Difference (LSD). The treatment was feeding frequency at 3 (at 08.00, 16.00 and 24.00), 4 meals (at 08.00, 14.00, 20.00 and 02.00), 5 meals (at 08.00, 12.48, 17.36, 22.24 and 03.12) and 6 meals (at 08.00, 12.00, 16.00, 20.00, 24.00 and 04.00) times a day in dark condition. The results indicated that the feeding frequency significantly effect to the growth rate and feeding efficiency, but did not significantly effect to survival rate. Feeding frequency 6 times a day is the best daily growth rate and feeding efficiency at 4,90% and 94,90%. Feeding frequency 3 times a day the old daily growth rate and feeding efficiency at 2,44%. and 44,03%.Keywords : Clarias gariepinus, feeding frequency, dark condition, growth.
Aktivitas Antimikroba Biji Teratai (Nymphaea pubescens L.) Terhadap Bakteri Aeromonas hydrophila, Streptococcus agalactiae dan Jamur Saprolegnia sp. Dewi Roma Widya; Dwi Suryanto; Desrita Desrita
AQUACOASTMARINE Vol 2, No 1 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 1, AGUSTUS 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 leads to microbial resistance. One alternative to control the fish disease is to use plant extract. The aim of this study was to investigate the antimicrobial activity of lotus seeds (Nymphaea pubescens L.) on pathogenic bacteria and fungi in fish. The lotus seed was extracted with several solvent, such as n-hexsane, ethyl-acetate, and methanol. Antimicrobial activity assay was carried out using disc diffusion method. Phytochemical preliminary test was done to determine seed chemical compounds. The brine shrimp lethality test was utilised to determine the extract toxicity. The result showed that all extracts inhibited Aeromonas hydrophila, Streptococcus agalactiae, and Saprolegnia sp. growth to some extent. The extract was to inhibit more to S. agalactiae with inhibition zone of 10.72 mm. In general extract of n-heksana was to inhibit more to the test microbes. Cytotoxic activity (LC50) was <1000 μg/ml. Preliminary test of phytochemical compound showed that extracts of lotus seed contains alkaloid, fenolic, glicoside, saponin and steroid/terpenoid.Keywords: Antimicrobial activity, microbial pathogenic, Nymphaea pubescens L.
Bivalvia di Perairan Pantai Cermin, Kabupaten Serdang Bedagai Nanda Mutia Hardianti; Yunasfi Djayus; Desrita Desrita
AQUACOASTMARINE Vol 2, No 1 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 1, AGUSTUS 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The Cermin Beach has a higher natural value such as biodiversity, one of them is bivalve. The objective this research is to study the community structure of bivalve and waters condition in Pantai Cermin of Serdang Bedagai Regency. This research was conducted since June - August 2013 using transec method at 3 station and 4 time interval of sampling. The observed physical and chemical parameter are temperature, salinity, pH, DO, TSS, and type of basic substrate.Bivalve are found in Cermin Beach of Serdang Bedagai Regency consists 15 species, i.e. The species with most value on each station is Donax cuneatus with the abudance in station I that is 150 ind/m2, the abudance in station II that is 331 ind/m2 and abudance in station III is 247 ind/m2. The species diversity index of bivalve range from 0,85 – 1,22, uniformity index of bivalve range from 0,18 – 0,30, domination index of bivalve range from 0,35 – 0,57 and pollution index range from 1,23 – 1,61 is lightly polluted.Keywords: Bivalvia,Cermin Beach, Community Structure
Peta Sebaran Salinitas Pada Sumur Bor di Desa Percut Kecamatan Percut Sei Tuan Kabupaten Deli serdang Deliana Dongoran; Yunus Afifuddin; Riri Ezraneti
AQUACOASTMARINE Vol 2, No 1 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 1, AGUSTUS 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The rapid development of technology, followed by the development of the residents,this resulted in the siphoning of water by society include on wellbore massively which resulted in the decrease of fresh water surface elevation with the result that be lower than the sea level. The purpose of this reseach was to analyze salinity value and typesof waterat each sample pointon Wellbore, thesalinity distribution maps, influence of the depth to well salinity, and looking for away of managing water resources in Percut village, Sub-district of Percut Sei Tuan District of Deli Serdang. This reseach used Arcgis 9,3 software to got salinity distribution map. The result showed that well sanility in every stasiun was different. Salinity average was 333 – 2333 mg/l and in category of fresh water was 8,5%, brackish water was 23,6% and middle 67,9%. At depths of 20 – 100 meters, water were included in very good category not found was discovered at a depth of>100 meters. It showed that water in percut village was not suitable as drinking water.Keywords : Map, Salinity, wellbore.
PETA SEBARAN SALINITAS PADA SUMUR BOR DI KELURAHAN BELAWAN II KECAMATAN MEDAN BELAWAN Intan Iksaura Ginting; Yunus Afifuddin; Desrita Desrita
AQUACOASTMARINE Vol 2, No 1 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 1, AGUSTUS 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

People activity in sub district Medan Belawan II require very large. The purpose of this research was to analyze of salinity values and the type of water well drilling in the area of research, analyze the effect of depth of the well to salinity value, analyze salinity distribution map and figuring out how to manage water resources in Belawan II village. This research was conducted on june-july 2013 in village Belawan II, Subdistrict Medan Belawan, Medan. This research used ArcGIS 10 to got a map of the distribution of salinity. The result showed that number of wellbore included in good classification (333mg/l) was 4%, permitted (666-1333 mg/l) was 27%, doubting (1666-2000 mg/l) was 46% and dangerous (2333-3000 mg/l) was 24%. Freshwater was 4%, between fresh water and brackish water was 27% and brackish water was 69%. at a depth of 65-100m, were included in dangerous category was 24%, suspect 18%, allowed 1% and good category not found. At a depth > 100 meters the waters were included in the hazardous category not found, suspect 9%, allowed 44%, and good category was 4%. The most dominating salinity distribution was 1666 mg/l-2000 mg/l were included in suspect category. The most dominating salinity distribution was 1666 mg/l-2000 mg/l were included in suspect category. This result showed that intrusion has occurred in the wellbore, and the water quality wasn’t good to serve as drinking water.Keyword : Intrusion, Salinity, Wellbore
Analisis Kelayakan Pengembangan Ekowisata Mangrove di Pantai Muara Indah Kecamatan Pantai Labu Kabupaten Deli Serdang Fathul Khoiri; Budi Utomo; Indra Lesmana
AQUACOASTMARINE Vol 2, No 1 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 1, AGUSTUS 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Mangrove forests in Pantai Muara Indah was a buffer and tourism area were located in Denai Kuala Village. Purpose of this research was to asses the potential of mangrove forests, such as type, closure, and fauna of the mangrove forest with visual method. Setting a strategy for sustainable tourism development in the mangrove in Pantai Muara Indah with SWOT analysis .This research found 8 species of mangroves, Avicennia lanata, Avicennia marina, Bruguieira exaristata, Bruguieira gymnorrhyza, Excoecaria agallocha, Hibiscus tiliaceus Rhizophora apiculata, Rhizophora mucronata. Fauna were found in this research area consisted of fish, crustaceans, primates and birds. People around the mangrove forests agree with the ecotourism development activities. The results of the feasibility development analysis with 3 aspects: ecology with the score 36,8, socioeconomic score 22,6, and supporting criteria with a score 9,6, according to criteria of feasibility assessment of tourism development mangrove forests in Muara Indah Beach was feasible to be developed 69,5.Keywords : Ecotourism, Mangrove Ecosystems, Pantai Muara Indah.
Analisis Dampak Kegiatan Wisata Terhadap Kualitas Air Sungai Betimus Kecamatan Sibolangit Kabupaten Deli Serdang Ghanang Dhika Aria; Pindi Patana; Rusdi Leidonald
AQUACOASTMARINE Vol 2, No 1 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 1, AGUSTUS 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

River is one of the most important sources of water for human, because it can serve as a source of drinking water, tourism, animal husbandry, and fishery. Positive impact of tourism activities in economic development can also lead to negative effects of environmental degradation. Therefore, a research had been conducted at Betimus River District of Sibolangit, Region of Deli Serdang in June– July 2013 by analyzing the water quality of Betimus Riverand compare it with the water quality standards based on PP No 82 tahun 2001and perceptions of visitors and managers. The Waters quality parameters thatanalyzed, i.e, stream. temperature, brightness, dissolved oxygen,pH, BOD5, ammonis,Colifaecal, and perceptions of visitors. The results showed that water quality value for eight parameters of Betimus River was meet the standard of quality based on PP No 82 tahun 2001 and visitors felt comfortable with these attractions.Key Words :Colifaecal, Betimus River, Tourism, Water Quality.
JENIS-JENIS BAKTERI PADA LUKA IKAN PATIN (Pangasius djambal) Yudha Perdana Putra Lubis; Yunasfi Djayus; Rusdi Leidonald
AQUACOASTMARINE Vol 2, No 1 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 1, AGUSTUS 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

One of the various forms of business which produces fish optimally and do not damage fish populations and environment is a good freshwater fish farming. Currently catfish become one of the leading commodity in the fishery. Bacterial diseases arising from injury affecting the outcome of catfish farming. This research had been conducted on September – October 2013. It purpose was to determine the type of bacterias that commonly found in catfish (Pangasius djambal) wound. Sampling was done one time to collect 10 fishes. Samples were fishes which showed of clinical symptoms such as wound, skin discoloration, defect on the fins, tail and antennae, slow-moving, swim on the surface, tend to be solitary (not clustered ) and also fish without no clinical symptoms. Bacteria only found in injury catfish they are Aeromonas hydrophilla, Pseudomonas aeruginosa, Pseudomonas pseudomallei and Morganella morganii.Keywords: Catfish (Pangasius djambal), Fish disease, Types of Bacterias, Wound.
UJI DAYA HAMBAT EKSTRAK KULIT BATANG Rhizophora mucronata TERHADAP PERTUMBUHAN BAKTERI Aeromonas hydrophila, Streptococcus agalactiae DAN JAMUR Saprolegnia sp. SECARA IN VITRO Dedi Pradana; Dwi Suryanto; Yunasfi Djayus
AQUACOASTMARINE Vol 2, No 1 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 1, AGUSTUS 2014
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 stem bark extract of Rhizophora mucronata against bacterial pathogens i.e. Aeromonas hydrophila, Streptococcus agalactiae and fungus Saprolegnia sp. and to determine the extract toxicity to Artemia Salina Leach. Extraction was done by a single maceration using methanol, ethyl acetate and n-hexane. Phytochemical test was conducted to all extracts. Toxicity test was conducted using Brine Shrimp Lethality Test. Antimicrobial activity test was done using the agar diffusion method. Phytochemical test of stem bark extract of Rhizophora mucronata showed that the extract contained of alkaloid, tannin, steroid/terpenoid and saponin. All of the extact of Rhizophora mucronata were toxic to A. salina. The result showed that ethyl acetate extract was the most toxic. Antimicrobial test results showed that ethyl acetate extract of stem bark of R. mucronata was broad antimicrobial spectrum because it was able to inhibit the growth of all microbes.Keywords: Antimicrobial activity, Aeromonas hydrophila, Rhizophora mucronata, Streptococcus agalactiae, Saprolegnia sp.
Studi Kelayakan Potensi Wisata Pantai BerbasisMasyarakatdi Pantai TalugawuDesa BanuageaKabupatenNias Utara Ryando Restu Elvian Gea; Oding Affandi; Indra Lesmana
AQUACOASTMARINE Vol 2, No 1 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 1, AGUSTUS 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Coastal area constitute appointment room between continent and ocean. Coastal area constitute ecological unique area because this region have natural resources potency which can be developed as tourism area. One part of the coastal area which is not developed as tourism area is Talugawu Beach at North Nias Regency. Therefore, need to do an analysis by looking at the existing conditions at the beach. Analysis which is used in this research is descriptive analysis, analysis of suitability land for beach tourism recreation category, analysis of community participation and SWOT analysis. Talugawu beach have an attractive natural beauty. From the results of questionnaire, the community around the Talugawu beach has a fairly high involvement in the development of Talugawu beach tourism potential. From the result of suitability land analysis, acquired the value of suitability tourism of Talugawu beach included on S2 category is suitable. From the result of SWOT analysis, acquired the result calculation of IFE and EFE matrics showed above 2.50.Keywords : Coast region, tourism area, SWOT analysis, suitability land analysis, natural beauty, Talugawu beach

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