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ANALISIS KESESUAIAN DAN DAYA DUKUNG EKOWISATA PANTAI, SELAM DAN SNORKELING DI PULAU BERHALA KABUPATEN SERDANG BEDAGAI PROVINSI SUMATERA UTARA Amrullah Angga Syahputra; Yunasfi Djayus; Ani Suryanti
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 aims to determine the condition of coral reef ecosystems, suitabilityand carrying capacity of beaches, diving and snorkeling. This study was conducted inNovember-December 2015 in the Berhala Island Serdang Bedagai North SumatraProvince. The data used primary data. The data obtained directly from approximatemeasurement, surveys, observations, interviews with travelers and relevant parties. Thesecondary data is the data obtained from the study of literature and documents relatedagencies. The results showed that the percent coral cover is very appropriate category(S1) by 75%. Suitability shore excursions including highly appropriate category (S1)amounted to 81.19% and the carrying capacity of the region amounted to 382tourists/day. Suitability dive tourism including appropriate category (S2) of 74.07% anda carrying capacity of 494 regional tourist/day. Suitability snorkel tours including highlyappropriate category (S1) of 78.39% and a carrying capacity of 214 regional tourist/day.Keywords: Ecotourism, Fish, Coral Reef, Berhala Island
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)
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
KONDISI EKOLOGI MANGROVE DI KAMPUNG SENTOSA BARAT KELURAHAN BELAWAN SICANANG KECAMATAN MEDAN BELAWAN (The Ecological Condition of Mangrove in West Sentosa Village, Belawan Sicanang, Medan Belawan District) Ely Ermayani; Yunasfi Djayus; Zulham Apandy Harahap
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 is the living plant community between the sea and the land that was influenced by the tides. West Sentosa Village still has a natural mangrove ecosystem. But, mangrove in West Sentosa Village has long been used by the local community as a source of livelihood especially mangrove forest logging for aquaculture. This research aimed to know the ecological condition, condition of the mangrove waters and gastropod diversity associated with mangrove vegetation. This research is done in February until April 2016. Methode of the research is Purposive Random Sampling method by taking and observing of biotic components which was mangrove vegetation and density of gastropods and the measurement of water quality parameters. There are 11 kinds of mangrove which found in the research location, namely Acrostichum speciuosum, Avicennia alba, Avicennia marina, Bruguiera sexangula, Excoearia agallocha, Lumnitzera littorea, Nypa fruticans, Rhizophora apiculata, Rhizophora stylosa, Sonneratia caseolaris dan Sonneratia ovata. The kinds of mangrove substarate at this research are silty loam, clay loam and sand loam.Keywords : gastropod, mangrove, substrate, the ecological condition, water quality
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
KEANEKARAGAMAN JENIS IKAN DAN KETERKAITANNYA PARAMETER FISIKA KIMIA PERAIRAN ESTUARI SUAKA MARGASATWA KARANG GADING KABUPATEN DELI SERDANG SUMATERA UTARA Anggia Dolly Sibuea; Miswar Budi Mulya; Yunasfi Djayus
AQUACOASTMARINE Vol 4, No 4 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The research species diversity of fish in estuary waters Karang Gading Wildlife Sanctuary was held in May-June, 2015. It was conducted in three stations by natural zones and utilization. This study aims to determine the diversity of fish species and strong influence parameters with the diversity of fish species in the estuary. The Fish densities were analyzed using the formula Odum (1994). The Diversity Index using the formula Ludwig and Reynolds (1988) and correlation with a diversity index of chemical physics parameters of waters using Pearson correlation analysis with a computerized method of SPSS version 18.00. The results of this study were 19 species of fish. The highest density at station 3 (18,401 ind / m2) and the lowest at station 2 (5,237 ind / m2). The highest diversity index at station 1 (2.35) and the lowest is station 3 (1.62). Current speed, pH, DO and BOD were very strong positively correlated to the value of fish diversity index while the temperature was very strong negative correlation to the index of fish diversity.Keywords : Fish, Diversity, Karang Gading Wildlife Sanctuary Estuary.
SRUKTUR KOMUNITAS MAKROZOOBENTHOS DI DUSUN II DESAPULAU SEMBILAN KECAMATAN PANGKALAN SUSUKABUPATEN LANGKATPROVINSI SUMATERA UTARA Nurul Andrifa Nasution; Yunasfi Djayus; Ahmad Mutadi
AQUACOASTMARINE Vol 4, No 4 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Macrozoobenthos is very well being use as indicator to have the change of territorial of water quallity because of nature of benthos which is quite of having the low mobillity so that getting many influences by environment. This reaserch aim’s to knowing the condition of Sembilan Island. This research is done in Maret to April 2016. The study used purposive random sampling method by taking and observation of density of molluscs and measurement of water quality parameters. Data analysis included analysis of Molluscs, analysis of water quality and analysis of the substrate. Found 9 species of Molluscs at the research site are Nerita balteata has the highest composition of 32%. Chicoreuscapucinus 25%, Cerithidea cingulata 24%, Littorina melanostoma 7%, Littorina scabra 4%, Cerithidea obtusa and Telescopium telescopium have the same compsition that is equal to 3%. Nassarius dorsatus 2% and Pugilina cochilidium 0%. The diversity index (H+) is about 1,20 – 1,54. The equitability is about 0,42 – 0,48. The index of dominance is about 0,26 - 0,39.Keywords: diversity, Molluscs, Sembilan Island.
HUBUNGAN KERAPATAN MANGROVE TERHADAP LAJU SEDIMEN TRANSPOR DI WILAYAH PESISIR DESA PULAU SEMBILAN KABUPATEN LANGKAT SUMATERA UTARA Rudi Hasonangan Siregar; Yunasfi Djayus; Ahmad Mutadi
AQUACOASTMARINE Vol 4, No 4 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Mangrove forests in coastal areas physically serves as a barrier of mud and sediment trap. Mangrove are often utilized by people aquaculture activities by means of mangrove forest logging and timber extraction as building materials and firewood, thereby reducing the catch mangrove roots as sediment traps. The purpose of this study was to determine in fluence of mangrove density on the sediment transfort rate in Coastal Pulau Sembilan Village. The research was conducted for two months from March to April 2014 in Coastal Pulau Sembilan Village. The method used is the method of transects and sediment trap method. The results of this study is the highest density of mangrove are found at statiun 4 with a value of 4930 stands/ha and lowest were in station 5 with a value 3662 stands/ha and categorized good. Relationship between the mangrove density and sedimen transfort rate exhibits a negative correlation with a value of -1 this means that sediment rate will be lower when mangrove density higher and vice versa.Key Word : Mangrove Density, Transect Method, Sediment Traps Method, Sediment .Transfort Rate.
DEKOMPOSISI SERASAH DAUN Rhizophora apiculata DAN KONTRIBUSI TERHADAP UNSUR HARA DI PERAIRAN PULAU SEMBILAN KECAMATAN PANGKALAN SUSU KABUPATEN LANGKAT M. Ridho Santoso; Yunasfi Djayus; Ahmad Mutadi
AQUACOASTMARINE Vol 4, No 4 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The mangrove litter which has been decomposed contributes organic matter as source of nutrients, mangrove and natural food source for many species of fish and other organisms in the mangrove ecosystem. The purpose of this research is to know the decomposition of R. apiculata leaf litter and to know the nutrient content of carbon (C), nitrogen (N) and phosphorus (P) in the R. apiculata leaf litter which been released during the decomposition time. This research was done at the waters of the Pulau Sembilan Districs Langkat District Pangkalan Susu, North Sumatra Province during March until June 2016. This research used purposive sampling method at three stations and the determination of the station is done by seeing the availability of R. apiculata at the waters of the Pulau Sembilan. The results showed that the decomposition of R. apiculata litter leaf on day 75 are 8,53 in stasiun I, 8,58 in station II and 10,18 in III station. The fastest decomposition is the station I with 10,18 and the slowest decomposition is the station I with 8,53. The nutrient of carbon during decomposition in 75 days are 17,41% at station I, 15,84% at station II and 17,41 % at station III. Nutrient of nitrogen which beendecomposed on day 75 are 0,98% in station I, 1,18 % in station II and 1,18 % in station III. Nutrient of phosphorus during decomposition in 75 days are 0,08% in station I, 0,09 % in station II and 0,10 % in station III.Keywords : Decomposition, Pulau Sembilan, R. apiculata. nutrient.
DEKOMPOSISI SERASAH DAUN Avicennia marina DI PERAIRAN PULAU SEMBILAN KECAMATAN PANGKALAN SUSU KABUPATEN LANGKAT PROVINSI SUMATERA UTARA Saleha Bako; Yunasfi Djayus; Rusdi Leidonald
AQUACOASTMARINE Vol 4, No 4 (2016): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The mangrove litter which has been decomposed contributes organic matter as food source for many species of fish and other organisms in the mangrove ecosystem. The purpose of this research is  to know the decompositio of A. marina litter leaf and to know the nutrient content of carbon (C), nitrogen (N) and phosphorus (P) in the A. marina litter leaf which been released during the decomposition time. This research was done at Pulau Sembilan, Pangkalan Susu Regency of Langkat North Sumatra Province during March until Mei  2016. This research used purposive sampling method at three stations and the determination of the station is done by seeing the availability of A. marina at the Pulau Sembilan. The results showed that the decomposition of A .marina litter leaf on day 75 are 11,13 in stasiun I, 10,94 in station II and 10,50 in III station. The fastest decomposition is the station I was  11,13 and the slowest decomposition is the station III was  10,50. The carbon during decomposition in 75 days are 10,46% at station I, 10,75% at station II and  11,03% at station III. Nitrogen which been decomposed on day 75 are 0,98% in station I, 1,18% in station II and 0,10% in station III. Phosphorus during decomposition in 75 days are  0,10% in station I, 0,11%  in station II and 0,10% in station III. Keywords : Pulau Sembilan, Decomposition, Avicennia marina 
Co-Authors Adenia Constansia Sitepu Ahmad Muhtadi Ahmad Muhtadi Rangkuti Ahmad Mutadi Ahmad Rizki Albino Panjaitan Amanatul Fadhilah Amrullah Angga Syahputra Anggia Dolly Sibuea Ani Suryanti Atikah Asry Aznia Marlina Sima Bill Maulana Bidawi Buana Sukri Tanjung Christina Sagala Cut Hannelida Eriza Daniel Abas Herman Silalahi Danra Siallagan Debi Debora Haro Dedi Pradana Desita Sari Br Ginting Desrita Desrita Desy Ariska Dewi, Rita Rosmala Dinarta Hutabarat Dizza Ayu Putri Dumaria R. M. L Tobing DWI SURYANTO Elisa Januarita Doloksaribu Ely Ermayani Endaiyana Libertyta Ester Nelya Tindaon Fahmi Fadhli Rais Fatimah Murni Febrina Arli Fina Fitriyani Friyuanita Lubis Gilang Pradifta S Green Alfath Siregar Hafiz Muhammad Henny Christien Horas M. C. Simatupang Huria Marnis Indah L. M Tambunan Indra Lesmana Josephin Saut Sintong Panjaitan M. Ridho Santoso M.Bobbie Jhora Waker MARAGUNUNG DALIMUNTHE Meia Ester Sela Ginting Meirani Ritonga Miswar Budi Mulya Muhammad Dafikri Muhammad Ma’rufi Muhammad Riza Kurnia Lubis Muhammad Rizky Nafi Sakila Nanda Mutia Hardianti Nisa Hidayati Nur Hidayah Nasution Nurasiah Riza Nurmatias Nurmatias Nurul Andrifa Nasution Nurul Azmi Ofi Sabrina Sitompul Pesta Saulina Sitohang Prasetia Ajitama Putri Ananda Tarigan Rahmad Ritonga Raissha Amanda Siregar Rangga Warsito Ratna Dewi Rebeka Paimaibot S Reza Alnanda Rika Wirani Rio Fentaria S Riri Ezraneti Risda Farida Lubis Romi Pindonta Tarigan Ronald Fadli Naibaho Rudi Hasonangan Siregar Rusdi Leidonald Sabilah Fi Ramadhani Saleha Bako Sangap Ginting Sarah Diba Sandy Sari Marina Saragi Sultan Akbar Habibullah Suria Masriani Sinaga Susanti Lawati Barus Syammaun Usman Tajuddin Siregar Tiur Natalia Manalu Ummi Febriani Ritonga Vinces Agriani Lase Vindy Rilani Manurung Yenni Ningsih Siringoringo Yudha Perdana Putra Lubis ZAINURI SYAM Zefri Ade Gurukinayan Zulham Apandy Harahap Zulkifli Nasution