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FUNGSI FISIK MANGROVE SEBAGAI PENAHAN ABRASI DI PESISIR KOTA MEDAN PROVINSI SUMATERA UTARA (PHYSICAL FUNCTION OF MANGROVE AS RETAINING ABRASION AT THE COASTAL OF MEDAN, NORTH SUMATRA) Panjaitan, Josephin Saut Sintong; Djayus, Yunasfi; Harahap, Zulham Apandy
AQUACOASTMARINE Vol 3, No 4 (2015): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

This research aims to determine the physical environmental or socio - economic of local community gives more dominant influence to damage the mangrove forest, changes of shoreline has been occurred from 2003 ? 2014, changes of shoreline due to the influence of erosion at coastal of Medan and the dominant species of mangrove as retaining abrasion at coastal of Medan. Changes of Shoreline can be seen with the overlay method. This research uses field observation and interview to the local community directly. The results of research shows that socio - economic of local community gives more dominant influence than physical environmental to damage the mangrove forest. changes of shoreline has been occurred from 2003 ? 2014 is about 57 meter. Based on field observation, many mangrove forest are converted into farm and many illegal logging has been occurred in the location of research.Keywords : Physical Function, Mangrove, Abrasion, Overlay, Shoreline
KONDISI KUALITAS AIR DANAU TOBA DI KECAMATAN HARANGGAOL HORISON KABUPATEN SIMALUNGUN SUMATERA UTARA Haro, Debi Debora; Djayus, Yunasfi; Harahap, Zulham Apandy
AQUACOASTMARINE Vol 1, No 1 (2013): JURNAL AQUACOASTMARINE VOLUME 1, NO 1, DESEMBER 2013
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Aquaculture of floating net cages system at Lake Toba in particularHaranggaol developed rapidly, As uncontrolled development unit ofculture can cause water quality decreased in Haranggaol, Toba Lake sothat it can pass through water quality standard. This research aim to knowthe level of water pollution in Lake Toba Haranggaol using the STORETand Index Pollution Method then compare it without floating net cages.This research was done in May- July 2013. Sampling method used methodof purposive random sampling. Station was used for research was Station 1at environment of floating net cages and Station 2 at without floating netcages area. Result shown water temperature: 26-28 0C, brightness: 2,8-5,35meter, turbidity: 0,16-7.13 NTU, TSS: 12.36-19.36 mg/l, pH: 7,1-8,3, DO:4,3?6,3 mg/l, BOD: 0,4-1,7 mg/l, COD: 4,42-6,63 mg/l, NH3: 0,115-0,293mg/l, NO3: 0,306-0,814 mg/l, NO2: 0,001-0,015 mg/l, PO4: 0,038-0,188mg/land Colifecal: 8,6?22,2 MPN/100 ml. Based on the results of research therewere some parameters that have passed water quality standard atenvironment of floating net cages was 0,217 mg/l of NH3, 0,578 mg/l of NO3and 0,134 mg/l of PO4, while at without floating net cages area was 0,144mg/l of NH3, 0,401 mg/l of NO3 and 0,056 mg/l of PO4. Based on Storetmethod, both research station categorized into the class C that was middlepolluted. While according to Pollution Index method both research stationcategorized light polluted to middle polluted.`Key words: Colifecal, Floating Net Cages, Water Quality
UJI TOKSISITAS AKUT EKSTRAK DAUN KAMBOJA (PLUMIERA RUBRA L.) PADA IKAN NILA MERAH (OREOCHROMIS NILOTICUS) ACUTE TOXICITY TEST EXTRACT FRANGIPANI LEAVES (PLUMIERA RUBRA L.) ON THE RED TILAPIA (OREOCHROMIS NILOTICUS) Warsito, Rangga; Djayus, Yunasfi; Harahap, Zulham Apandy
AQUACOASTMARINE Vol 3, No 3 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 3, JUNI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Aquaculture is done highly intensive susceptible to outbreaks of diseas. The use of antibiotics in the prevention of bacterial diseases can cause negative effects to human health. Antibiotics can be replaced with the use of plant extracts containing antibacterial compounds, one of which frangipani leaves (Plumiera rubra L.). This study aims to determine the 96-hour LC50 value and safe concentration of frangipani leaf extract of red tilapia fish seeds. The study is divided into two stages, namely the preliminary test and the definitive test. Preliminary test was conducted to determine threshold concentrations above and below the threshold, where the concentration of the preliminary test is 0 ppm, 50 ppm, 100 ppm, 200 ppm, and 750 ppm. Definitive test using a concentration of 0 ppm; 98,40 ppm; 193,65 ppm; 381,10 ppm; and 750,00 ppm were obtained from calculations based on the threshold concentration of 750 ppm and below the threshold of 50 ppm. Percentage mortality of red tilapia in a preliminary test of the lowest to highest concentration of 3,33%; 16,67%; 46,67%; and 76,67%. Percentage mortality converted into the form used in the probit and probit analysis to obtain the 96-hour LC50 value of 510,63 ppm. Safe concentration of 10% of the LC50 within 96 hours, which is 50,2 ppm. In the 96-hour LC50 valuesindicate that the extract of frangipani leaf included in the category of moderate toxicity.Keywords : Plumiera rubra L., Oreochromis niloticus, LC50, phytochemistry
BAKTERI PADA TUBUH IKAN GURAMI (OSPHRONEMUS GOURAMY) AKIBAT INFESTASI EKTOPARASIT ARGULUS SP. (BACTERIAL ISOLATE IN GOURAMI (OSPHRONEMUS GOURAMY) AS THE RESULT OF THE INFESTATION OF ECTOPARASITES ARGULUS SP.) Syihab, M. Irfan Maulana T.; Suryanto, Dwi; Harahap, Zulham Apandy; Dhuha, Orbita Roiyan
AQUACOASTMARINE Vol 3, No 3 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 3, JUNI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Argulus sp. are parasites that act as mediators for viruses or bacteria frequentlycausing diseases by leaving a bite scar. This study was aimed to know potential pathogenicbacterial in the internal and external organs of gourami as result of ectoparasites Argulus sp.infestation. Twelve Argulus sp. were infested on gourami for 14 days. The isolation of thebacterial of the gourami and water was conducted using dilution methods. Bacterialcharacteristic was conducted to their morphology and biochemical properties followed byidentification of the bacterial. Two bacterial species were found in the samples of fish andwater, i.e. Corynebacterium aquaticum and Micrococcus luteus.Keywords : Osphronemus gouramy, Argulus sp., Corynebacterium aquaticum,Micrococcus luteus.
STUDI POTENSI DAN NILAI EKONOMI BERDASARKAN BIAYA PERJALANAN DAN KESEDIAAN MEMBAYAR DI PANTAI SRI MERSING KABUPATEN SERDANG BEDAGAI POTENTIAL STUDIES AND ECONOMIC VALUE BASED TRAVEL COST METHOD AND WILLINGNESS TO PAY IN SRI MERSING BEACH SERDANG BEDAGAI Simanjuntak, Febrina Astria; Patana, Pindi; Harahap, Zulham Apandy
AQUACOASTMARINE Vol 3, No 2 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 2, APRIL 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The beach is one of recreational attraction that people want to interact directly and enjoy the beauty of natural resources. Research was conducted at Sri Mersing Beach Serdang Bedagai from August to September 2014 by interviewing respondents that. Assessment of tourism Potential at Sri Mersing beach by using a modification of the ADO-ODTWA of the Forestry Department. Showed that Sri Mersing Beach Tourism has a great potential to be developed.Economic value was measured by Travel Cost Method (TCM) and willingness to pay. The results showed that the Travel Cost average is Rp. 116 273,- while The average cost of willingness to pay current existense is Rp. 5.568,- and after adding the facilities is Rp.14.090,-.Keywords: Economic Value, Willingness To Pay (WTP), Travel cost, Tourism, Beaches Sri Mersing.
ANALISIS KONVERSI HUTAN MANGROVE DI KECAMATAN GEBANG KABUPATEN LANGKAT (CONVERSION ANALYSIS OF MANGROVE IN DISTRICT GEBANG, LANGKAT) Wirani, Rika; Djayus, Yunasfi; Harahap, Zulham Apandy
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+
KAJIAN POTENSI UNTUK EKOWISATA DI PANTAI LESTARI INDAH KABUPATEN SERDANG BEDAGAI SUMATERA UTARA (STUDY POTENTIAL FOR ECOTOURISM IN LESTARI INDAH BEACH, SERDANG BEDAGAIREGENCY, NORTH SUMATRA PROVINCE ) Fadrika, Tengku Muhammad; Rahmawaty, Rahmawaty; Harahap, Zulham Apandy
AQUACOASTMARINE Vol 3, No 2 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 2, APRIL 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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T. Muhammad Fadrika, Study Potential for Ecotourism in Pantai Indah Lestari,Serdang Bedagai regency , North Sumatra province, under guided Rahmawatiand Zulham Apandy Harahap.Indah Lestari beach has natural resource potential to be a place thatsupports tourism, especially ecotourism ecotourism which in this case is based ona sightseeing trip to keep the coastal environment. Tourism activities shouldinvolve several parties such as visitors, local communities and managers to beable to put to good use.The research was conducted in Lestari Indah beach , Serdang Bedagairegency of North Sumatra Province. This research was conducted from Octoberto November, 2013 by taking the physical parameters of the questionnaire andalso taking part - related parties. Suitability Index Areas, Sustainable CoastalScenic can be used as tourist attractions. Capability Areas can still beaccommodated by the coastal areas, so as not to damage Indah Lestari Coastregion. The best alternative strategy for the development of SustainableEcotourism in Coastal Indaah is to do a good promotion through the internet andprint media.Keywords : Ecoutourism, Carrying Capacity Region And SWOT
ANALISIS KESESUAIAN WILAYAH UNTUK BUDIDAYA IKAN KERAMBA JARING APUNG DI PERAIRAN GIRSANG SIPANGAN BOLON DANAU TOBA (ANALYSIS OF SUITABILITY AREA FOR FLOATING NET CAGE INI LAKE TOBA GIRSANG SIPANGAN BOLON) Khairunnisa, Khairunnisa; Barus, Ternala Alexander; Harahap, Zulham Apandy
AQUACOASTMARINE Vol 3, No 1 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 1, PEBRUARI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Toba Lake is a lake that is used as aquaculture land. Floating net cageactivities in the Toba Lake has been done by the public since 1986, but the rapiddevelopment of floating net cage occurred since 1998 through the intensive cultivationnet high fish density. This study aims to analyze potential areas for floating net cage iniToba Lake Girsang Sipangan Bolon, Simalungun by the suitability matrix method. Thisresearch use the scorring method/weighting. Determination of weighting and scoring isdone to put a value on criteria that support the aquaculture activities by linking thechemical physical parameters. These parameters include temperature, DO, pH,brightness, current, depth, BOD, and ammonia. The results showed that thesuitability grade in Toba Lake Girsang Sipangan Bolon is very suitable and suitableclass. This shows that Toba Lake Girsang Sipangan Bolon is a potential area forfloating net cage.Keyword : Toba Lake, Floating Net Cage, Suitability Index
KEANEKARAGAMAN JENIS IKAN DIPERAIRAN SUNGAI CASANOVA DESA NAMU SURO KECAMATAN BIRU-BIRU KABUPATEN DELI SERDANG PROVINSI SUMATERA UTARA Arianta, Benny; Yusni, Eri; Harahap, Zulham Apandy
AQUACOASTMARINE Vol 6, No 2 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The research has been conducted in the Casanova River, on Biru-biru District, Deli Serdang Region, of North Sumatera. This research wash done by purposive sampling method and three different stations based on community activity, Sampling of This research consists of two ordos, two families, four genera and four spesies. The species obtained are Oreochromis niloticus, Hampala macrolepidota, Mystacoleucus marginatus, Barbodes schwanenfelldi. Based on the value of K (density), KR (relative density), and FK (frequency of attendance) at Station I, II, and III, the highest value was found at station I of 0,04 ind / m2, 77,42%, 0,77% with species of Oreochromis niloticus. Compared the other species was lowers index dominance at 0.92 ind / m2, and the uniformity index was found at 1,46 ind / m2. However index for all station was found Oreochromis niloticus higher at 68,51 %.Keywords: Fish, Diversity, Casanova River, Deli Serdang, Sumatera Utara.
KAJIAN KESESUAIAN WISATA DAN DAYA DUKUNG KAWASAN WISATA ANCOL ARUNG JERAM KECAMATAN SIPISPIS KABUPATEN SERDANG BEDAGAI SUMATERA UTARAKAJIAN KESESUAIAN WISATA DAN DAYA DUKUNG KAWASAN WISATA ANCOL ARUNG JERAM KECAMATAN SIPISPIS KABUPATEN SERDANG BEDAGAI SUM Hamidah, Siti; Harahap, Zulham Apandy
AQUACOASTMARINE Vol 6, No 3 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Ancol Arung Jeram is a tourism place that used medium of rafting recreation and natural bathing which often visited by local tourist. This research aims to analyze the suitability of level tourism and carrying capacity of the area based on the physical condition of the Ancol Arung Jeram as object of tourism place and assess visitors perceptions of activities of tourist in Ancol Arung Jeram. The research was done on last of February until March 2018. Ancol Arung Jeram was used by visitors to do activities of natural bathing and rafting of course the activities will be supported by pontential in the region.The carrying capacity of the tourism of Ancol Arung Jeram in rafting category is 425 people/day and natural bathing category is 772 people/day. Tourism suitability index for rafting category is included in S1 (Very Suitable) and the natural bathing category is (Very Suitable).Keywords: Ancol Arung Jeram, regional carrying capacity, tourist suitability index, bath ,rafting ,ecotourism.