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All Journal Aquacoastmarine Acta Aquatica: Aquatic Sciences Journal Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Electrices : Jurnal Otomasi Kelistrikan dan Energi Terbarukan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan AQUACOASTMARINE: Journal of Aquatic & Fisheries Sciences Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Desrita Desrita
Department Of Aquatic Resources Management, Agriculture Faculty University Of Sumatera Utara
Agriculture, Biological Sciences & Forestry Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences Other

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ISOLASI DAN IDENTIFIKASI BAKTERI POTENSIAL PATOGEN PADA IKAN NILA (Oreochromis niloticus) DI KOLAM BUDIDAYA PATUMBAK Isolation and Identification of Potential Pathogenic Bacteria in Tilapia (Oreochromis niloticus) in Patumbak Pond Aquaculture Ruth Aprilyanti Napitupulu; Dwi Suryanto; Desrita Desrita
AQUACOASTMARINE Vol 5, No 1 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Tilapia culture is highly affected by fish diseases, which may be occured because of change in environment. This study was aimed to know potential pathogenic bacteria in nila fish (Oreochromis niloticus). Screening and isolation of the bacteria were done in Balai Karantina Ikan, Pengendalian Mutu dan Keamanan Hasil Perikanan Kelas I Medan I. Identification of the bacteria was conducted using Vitek 2 Compact in RS Murni Teguh. Five potential pathogenic bacteria were found to infect nila fish i.e. Kocuria kristinae and Stenotrophomonas maltophilia of brain, Aeromonas hydrophila of liver, Staphylococcus lentus of kidney and Staphylococcus warneri of skin sample. Water temperature was 32 oC with pH of 6,9 and DO of 2,96 mg/lKeywords : Patumbak, Potential Pathogenic Bacteria, Tilapia, Water Quality.
ISOLASI DAN IDENTIFIKASI BAKTERI POTENSIAL PROBIOTIK PADA SALURAN PENCERNAAN IKAN MAS (Cyprinus carpio) Isolation and Identification Potential Probiotic Bacteria in Digestive Tract of Goldfish (Cyprinus carpio) Mikha Febryana Samosir; Dwi Suryanto; Desrita Desrita
AQUACOASTMARINE Vol 5, No 1 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Probiotics are beneficial microbes to improve microbial balance in the digestive tract. The aims of this study was to isolate the potential probiotic bacteria in Goldfish (Cyprinus carpio). This study was conducted from May to October 2016 at the Fish Quarantine, Quality Control and Safety of Fishery Class I Medan I, Kuala Namu Medan. The isolation and identification of bacteria was carried out based on morphology and biochemistry tests. The result showed that the potential probiotic bacteria in the digestive tract of C. carpio was Micrococcus varians, Staphylococcus arlettae and Bacillus firmus.Keywords : C. carpio, identification, isolation, probiotic.
HUBUNGAN KERAPATAN MANGROVE TERHADAP KEPADATAN POPULASI IKAN GELODOK (FAMILI: GOBIIDAE) DI DESA PULAU SEMBILAN KABUPATEN LANGKAT SUMATERA UTARA The Relationships Mangrove Density with Population Density of Mudskipper (Family: Gobiidae) in the Sembilan Isl Bill Maulana Bidawi; Yunasfi Djayus; Desrita Desrita
AQUACOASTMARINE Vol 5, No 1 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Utilization of Mangrove Ecosystem as land conversion resulting decline in the productivity of the mangrove ecosystem. The transition function of the mangrove ecosystem damage and disrupt the microbial life in it. One of which is a Mudskipper. The research aims to determine how the population density of Mudskipper and how the relationship of mangrove density to the population density of Mudskipper. The research was conducted for two months from March to April 2016 at the mangrove ecosystem in the Sembilan Island village. The research used purposive random sampling method. There are three kind of fish can be found in those areas, which are Periophthalmus chrysospilos, Periophthalmus gracilis, and Boleophthalmus boddarti. The results of this research is the highest population density of Mudskipper are found at station III with a value of 7400 Ind/ha and lowest were in station IV with a value of 2600 Ind/ha. The highest density of mangrove are found at station 4 with a value of 4800 Ind/ha and lowest were in station III with a value of 4066 Ind/ha and categorized good. Relationship between the mangrove density and the population density of Mudskipper exhibits a positive correlation with a value of 0,941.Key Words : Identification, Mangrove, Mudskipper, Population Density.
STRUKTUR KOMUNITAS MANGROVE DI HUTAN MANGROVE KELURAHAN BELAWAN SICANANG KECAMATAN MEDAN BELAWAN PROVINSI SUMATERA UTARA Mangrove Community Structure in Mangrove Forest, Village Belawan Sicanang, District of Medan Belawan, Province North Sumatera Yenni Ningsih Siringoringo; Yunasfi Djayus; Desrita Desrita
AQUACOASTMARINE Vol 5, No 2 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Mangrove forests existed in Village Belawan Sicanang have been many experienced land conversion as embankment and settlements. These conditions led to degradation in habitat quality. The research aimed to know mangrove species composition and to know mangrove community structure. The research took place in May  June 2016. The method used in the determination of the location is purposive sampling and divided into 3 stations based on different activities. Analysis of mangrove vegetation derived mangrove density, relative density, mangrove frequency, relative frequency, dominance, relative dominance, importance value index, diversity index, and evenness index. The results showed that the composition of mangrove species found eleven species of true mangroves that are Avicennia alba, Avicennia marina, Bruguiera gymnorrhiza, Bruguiera hainessii, Ceriops tagal, Nypa fruticans, Sonneratia alba, Sonneratia caseolaris, Xylocarpus granatum, Rhizophora apiculata dan Rhizophora mucronata. The mangrove forest located in Village Belawan Sicanang is classified on very tight criteria where mangrove density ≥ 1500 ind/ha, the relative dominance ≥ 75%, and the mangrove community were in stable condition.Keywords : Mangrove, Species Composition, Community Structure
STRUKTUR VEGETASI MANGROVE DI KAMPUNG NIPAH DESA SEI NAGALAWAN KECAMATAN PERBAUNGAN SERDANG BEDAGAI PROVINSI SUMATERA UTARA Vegetation Structure of Mangrove in, Kampung Nipah, Sei Nagalawan Village, District of Perbaungan, Serdang Bedagai, Sumatera Utara Sari Marina Saragi; Yunasfi Djayus; Desrita Desrita
AQUACOASTMARINE Vol 5, No 2 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Mangrove forest is a plant species whose life is still affected by sea tides. Mangrove forest is also a habitat of aquatic biota. In Kampung Nipah the utilization of Mangrove Forest is utilized as marine tourism. Utilization of mangrove forest that is not environmentally friendly is feared will threaten the preservation of mangrove forest ecosystem. The purpose of this research is to know the composition of mangrove species and mangrove vegetation structure which is currently viewed from Index of Density, Domination, Frequency, Importance Value Index, Diversity Index, and Mangrove Sharpness Index and Mangrove environmental condition in Kampung Nipah at Sei Nagalawan Village. This research was conducted for two months from December 2016 until January 2017. The method used to determine the location of sampling using Purposive Sampling at 3 stations. The structure of mangrove vegetation in stations I and II has a very dense density, density at station III is rarely.Keywords: Community Structure, Mangrove Density, Mangrove Utilization, Serdang Bedagai
KEANEKARAGAMAN MANGROVE DAN KELIMPAHAN MAKROZOOBENTHOS DI DESA BAGAN ASAHAN KECAMATAN TANJUNG BALAI KABUPATEN ASAHAN PROVINSI SUMATERA UTARA Indah L. M Tambunan; Yunasfi Djayus; Desrita Desrita
AQUACOASTMARINE Vol 5, No 3 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Bagan Asahan village is one which is in Asahan Regency, which has the great potential of mangrove ecosystemnand diverse biota that live in it. Macrozoobrnthos is one which is potensial mangrove fishery that have economy value. This study aims to know mangrove diversity and macrozoobenthos abudance. The study held in March until April 2017. The study was conducted using purposive sampling method. Plot size was determined using classification category of seedling (2x2 m2), stake (5x5 m2) and tree (10x10 m2) The highest mangrove diversity for the three categories is located on station I with values of 1.94, 1.83 and 1.62. The highest macrozoobenthos abundance is on station II (18.5 ind/m2) and the lowest is at station III (11,66 ind/m2) meanwhile the macrozoobenthos abundance on station I is 15,41 ind/m2.Keywords : Abundance , Diversity, Makrozoobenthos, Mangrove, Tanjung Balai.
PERTUMBUHAN DAN LAJU EKSPLOITASI IKAN KEMBUNG (Rastrelliger spp.) DI PERAIRAN SELAT MALAKA PROVINSI SUMATERA UTARA The Growth and Exploitation Rates ofMackerelFish (Rastrelliger spp.) in Malacca Strait, Medan Belawan District, North Sumatera Province Yuli Wulandari; Budi Utomo; Desrita Desrita
AQUACOASTMARINE Vol 5, No 3 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Mackerel Fish (Rastrelliger spp.) is one type of economic fish in important for the community, this type is found in the waters of the Strait of Malacca. This study has objectives on accesing growth and exploitation rates of Mackerel Fish in Malacca Strait, North Sumatera Province. This study was held in three months, from March to May 2017. Data analysis used the ELEFAN I method (Electronic Lenght Frequencys Assesment Tool) by using FiSAT II (FAO-ICLARM Fish Stock Assesment Tool) software. The samples of Mackerel Fish obtained as much 361 tail. The growth pattern of Mackerel Fish is negative allometric. The range of condition factor are 0,602 – 1,294. The range of length frequency distribution are 175 – 182 mm. Based on the growth equation of Von Bertalanffy Mackerel Fish obtained in the waters of the Straits of Malacca is Lt = 217,35{1-e-0,75(t+0,015)} which means the asymptothed length (L∞) of Mackerel Fish 217,35 growth coefficient (K) of 0,75 per year and the theoretical age (t0) Mackerel Fish that is equal to -0,015. Total mortality (Z) of Mackerel Fish of 2,837 per year.Estimation of natural mortality rate (M) of Mackerel Fish of 0,891 per year and mortality due to catch (F) of 1,946 per year. So that the result of alleged exploitation rate of 0,68 per year.Keywords: Growth, Mortality, Exploitation Rates, Rastrelliger spp, Malacca Strait
IDENTIFIKASI JENIS-JENIS EKTOPARASIT PADA IKAN LELE DUMBO (Clarias gariepinus) Identification of Ectoparasites in Dumbo Catfish (Clarias gariepinus) Ayu Syahfitri Daulae; Dwi Suryanto; Desrita Desrita
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Dumbo catfish (Clarias gariepinus) is usually cultured with high density in pond. This fish is tolerant to low oxygen level and grow rapidly. However, in culture, this fish is often attached by some parasites. The purpose of this study is to find out what kinds of ectoparasites infect Dumbo catfish and to know dominant ectoparasitic infecting Dumbo catfish. This study was conducted from May until June 2017. This research was conducted with three repeated with the comparison of two ponds, then each pond is taken fish samples three pond fish samples were taken from two ponds with three reflication. Total sample were 18 fish. The result showed that Ichthyophthirius multifiliis, Trichodina, Chilodonella, Dactylogyrus,were dominant ectoparasites in the fish and water.Keywords : Catfish, Ectoparasitic.
Hubungan Panjang Bobot dan Faktor Kondisi Ikan Tor (Tor spp.) di DAS Wampu Kabupaten Langkat, Provinsi Sumatera Utara, Indonesia Isten Sweno Tamba; Desrita Desrita; Ahmad Muhtadi
AQUACOASTMARINE Vol 6, No 2 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The objective of the present study was to evaluate the Length Weight Relationship (HPB) and Condition Factors of Tor Fish (Tor spp.) in Wampu River, Langkat River, North Sumatera Province, Indonesia. The sampling was This research used Post Facto Descriptive methos at two locations Bahorok and Berkail Rivers during three months July to September 2017. The research study show that the b value of Tor tambroides and Tor soro Fishes at Bahorok and Berkail river are among 0,297 until 0,328 or allometric negative with condition factor are among 0,01 until 1,00.Keywords: Tor spp., Lenght Weight Relationship, Condition Factor and Allometric negative
HASIL TANGKAPAN DAN KONDISI HABITAT IKAN TOR (Tor spp.) DI HULU DAS WAMPU KABUPATEN LANGKAT SUMATERA UTARA Jeni Ariyanti; Desrita Desrita
AQUACOASTMARINE Vol 6, No 3 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The aim of this research is to know the catch of Tor fish (Tor spp.) and Tor trower habitat condition (Tor spp.) in Upstream Wampu Basin of Langkat Regency of North Sumatera. Sampling was conducted for three months, from July to September 2017. Fish was caught with backpack electrofishing units. Water quality measurement was done in situ. The catch in the Berkail River was higher than the catch in the Bahorok River, because the Berkail River has more dense vegetation than the Bahorok River. Overall, the water condition in Upper DAS Wampu is still above the standard quality water quality threshold.Keywords: Catch, Water Condition, Tor Fish (Tor spp.)
Co-Authors Abdillah Parinduri Adriana Tarigan Ahmad Muhtadi Ahmad Muhtadi Ainul Mardiah Amanda Paramitha Anggi Abdur Rohim Anita Rahman Ayu Syahfitri Daulae Bill Maulana Bidawi Bill Maulana Bidawi BUDI UTOMO Camelina Simbolon Charo Lina Kaban Darma Bakti Darma Bakti Darma Bakti Darma Bakti David Putra P Situmorang Dean Amunike Dewi Roma Widya Dewinta, Astrid Fauzia Dian Puspitasari Dian Puspitasari Dian Puspitasari Dian Puspitasari DWI SURYANTO Eka Tri Rahayu Eryana Dhalia Drajad Ginting Eryana Dhalia Drajad Ginting, Eryana Dhalia Drajad Eunike Saron Meliala Fadhilah, Amanatul Fatimah Murni Febrina Rahmadanti Putri Fina Fitriyani Ginting, Sara Silva Beru Hasan Sitorus Hesti Wahyuningsih Huria Marnis Indah L. M Tambunan Intan Iksaura Ginting Ipanna Enggar Susetya Ipanna Enggar Susetya Ipanna Enggar Susetya, Ipanna Enggar Isten Sweno Tamba Jeni Ariyanti Julia Syahriani Hasibuan Kartika Dewi Khairunnisa M Mahrozi Sagala Mars Sella Sinurat Mikha Febryana Samosir Miswar Budi Mulya Mohammad Basyuni Muammar Muammar Muhammad Mukhlis Kamal Muhammad Mukhlis Kamal, Muhammad Mukhlis Mujtahidah, Tholibah Nanda Mutia Hardianti Orbita R. Dhuha Pindi Patana Putri Permata Sari Sirait Putri Widyawati RIDWAN AFFANDI Rina D’Rita Sibagariang Rina Sari Lubis Rusdi Leidonald Ruth Aprilyanti Napitupulu Sara Silva Beru Ginting Sari Marina Saragi Sinaga, Jessica Siregar, Rizky Febriansyah Siti Aisyah Siti Aisyah Siti Aisyah Sudoyo Lumban Tobing Syammaun Usman Tarigan, Adriana Ternala Alexander Barus Toibullah Siregar Vinces Agriani Lase Vindy Rilani Manurung Yenni Ningsih Siringoringo Yenni Ningsih Siringoringo Yenni Ningsih Siringoringo, Yenni Ningsih Yessy Christanty Yuli Wulandari Yunasfi Yunasfi Djayus Yunasfi Yunasfi yunasfi yunasfi Yunasfi, Yunasfi Yunus Afifuddin Zulham Apandy Harahap