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Aquacoastmarine
Published by Universitas Sumatera Utara
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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 15 Documents
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Search results for , issue "Vol 6, No 1 (2018): AQUACOASTMARINE" : 15 Documents clear
HUBUNGAN LEBAR KARAPAS DAN BERAT KEPITING BAKAU (Scylla spp.) DI PERAIRAN KAWASAN MANGROVE DESA JARING HALUS KABUPATEN LANGKAT SUMATERA UTARA Raswin Nasution; Hesti Wahyuningsih; Ahmad Muhtadi
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The Mangrove Crabs population is typically associated with good Mangrove forest, so habitat loss will have a serious impact on the Crabpopulation. One of the areas of Mangrove Crab catching in nature is theMangrove Area Waters of Jaring Halus Village. The purpose of this research was to know the relationship between the width of the carapace and the weight of theMangrove Crab (Scylla spp.) in Mangrove Waters of Jaring Halus Village,Langkat Regency, North Sumatera. This research was conducted in December 2016 - January 2017 with 3 catching stations using Bubu fishing equipment of 45 units. The catch was analyzed by simple linear regression W = a Lb. The number of Mangrove Crabs caught 178 heads consisting of 93 males and 85 females with sex ratio between male and female is 1 : 0,91. The carapace's width of caughtCaps ranged from 41 to 96 mm where the male carapace's width ranged from 41 - 90 mm, while the females ranged from 41 - 96 mm. Heavy Crab Mangrove  that caught ranged from 30-540 mm where the males ranged from 30 - 370 grams while the female 30-540 grams. Growth of male and female mangrove crabs is positive allometric (b > 3) which means more dominant weight accretion compared to long accretion.Keywords: Jaring Halus Village, Mangrove, Scylla spp.
KEPADATAN EPIFAUNA DI LINGKUNGAN MANGROVE DESA LUBUK KERTANG KECAMATAN BRANDAN BARAT KABUPATEN LANGKAT PROVINSI SUMATERA UTARA Buana Sukri Tanjung; Yunasfi Djayus; Tajuddin Siregar
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The mangrove ecosystem is a system in nature where life that reflects the mutual relationship between living creatures and their environment, affected by the tides of sea water and is dominated by species of trees or shrubs that are distinctive and able to grow in salty / brackish waters. This research was conducted by using Purposive Sampling method to know Epifauna Density in Environment Mangrove Lubuk Kertang Village. The results of this study indicate that the highest density of Cerithidea alata species (9500 ind / ha) because this species is native to mangrove forest and as a predator. Temperature ranges from 27-32 oC. Based on the Morisita Index the dispersion pattern by clumping.Keywords: Mangrove Ecosystem, Density, Epifauna
STUDI KEANEKARAGAMAN IKAN KARANG DI PULAU JANGGI KECAMATAN TAPIAN NAULI KABUPATEN TAPANULI TENGAH PROVINSI SUMATERA UTARA Arief Rahman Hakim; Eri Yusni; Zulham Apandy Harahap
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The reseacrh aimed to determine reef fish diversity index, uniformity index of reef fish, reef fish species composition, percentage of reef fish and water quality. The research in was conducted on March, 2016, which was located in theJanggi Island NauliTapian Central Tapanuli, North Sumatra. The method used in the research is Underwater Fish Visual Census (Underwater Visual Census/ UVC) on two points of the station with the line length of 50 m and a width transect each to left and right as many as 5 m and three replications, observations had done for 15- 20 minutes.The quality index of reef fish diversity in Janggi Island was low category (H ' ≤ 2.0). Results of analysis of the data for evenness index of target fish, major fish and indicator fish categorized as low (0 <E ≤ 0.5). For the composition of reef fish species were found 30 species and 8 families, the highest analysis contained on major fish at 69%, target fish at 21% and the lowest at 10% is indicator fish.Keyword : Underwater Visual Census, Transect,Reef Fish, Janggi Island, Tapanuli Tengah District
DEKOMPOSISI SERASAH DAUN Sonneratia alba DAN ANALISIS UNSUR HARA C N DAN P DI PERAIRAN DESA SEI SAKAT KECAMATAN PANAI HILIR KABUPATEN LABUHAN BATU PROVINSI SUMATERA UTARA Ratna Dewi; Yunasfi Djayus; Amanatul Fadhilah
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Mangrove leaves have decomposition process that gives donation of organic material is a source of food for various types of biota, other organisms in mangrove ecosystem. The objectives of this study were to count the decomposition rate of Sonneratia alba litter at each station, and count the percentage of carbon nutrient content (C), Nitrogen (N), Phosphorus (F) and C / N Ratio at each station location. The research was conducted in Sei Sakat Village, Panai Hilir Sub-district, Labuhan Batu District, North Sumatera Province conducted from March to May 2017. The research station was determined by purposive sampling method at three stations with station determination based on the availability of Sonneratia alba mangrove type in Sei Sakat Village. The results showed that the decomposition rate decreased the highest litter weight of station I (30,09 g/day) while the lowest station III (7,272 g/day). Carbon (C) content during the 90 days carbon-highest decomposition process of station III (18,80%) while the lowest station I (14,87%). Nitrogen (N), the highest station nitrogen day I and III (2,95%) while lowest station II (2,50%) and Phosphorus (P), the highest Phosphorus station III (0,29%) while lowest station I (0,20%)while the ratio of C/N during peroses decomposition of 90 days that is the highest ratio of station II (7,009%).Kata kunci : Dekomposisi, Analisis unsur hara, Daun Sonneratia alba.
PERUBAHAN LUASAN MANGROVE DAN HUBUNGANNYA DENGAN PRODUKSI PERIKANAN DI KOTA LANGSA PROVINSI ACEH (Changes of Mangrove Area and Its Relation to Fishery Production in Langsa City, Province Aceh Antasari Malau; Budi Utomo; Zulham Apandy Harahap
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The purpose of this research is aimed to get information for the relation of mangrove ecosystem and fishery resources in Langsa City. This research used descriptive method based on land cover, regression and correlation analysis. Types of data used in this research were primary data of observation and interview, secondary data of mangrove fish catching result and mangrove area change from Landsat. The result shown that the mangrove change area of the period from 2011 to 2016 has decreased by 84 ha as well as the production of fishery resources from mangroves was from 2011 amounted to 1,762 tons decreasing became 414.4 tons in 2016. There was a real influence between the change of mangrove forest area to the production of fishery resources as yielding the equation y = 11,82x - 46427 with the correlation coefficient 0,73. Thus, the production of fish, shrimp or crabs is influenced by the area of mangrove forest, and the more extensive mangrove forest, production is also higher.Keywords: fishery resources, mangrove, land cover, Langsa city
KARAKTERISTIK BIO-FISIK HABITAT PANTAI PENELURAN TERHADAP TINGKAT KEBERHASILAN PENETASAN TELUR PENYU HIJAU (Chelonia mydas) DI PULAU PENYU PESISIR SELATAN PROVINSI SUMATERA BARAT Puji Cintami Tambun; Hesti Wahyuningsih; Yoes Soemaryono
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Green Turtle (Chelonia mydas) is an endangered marine reptile because of its high economic value. The main threats to the Green Turtle population from human activities, such as coastal and marine pollution, destruction of spawning habitats, destruction of feeding areas, migration disruption, illegal sea turtle fishing and turtle egg collection. This research took place in May - July 2017 at Turtle Island Pesisir Selatan West Sumatera Province. The measurements obtained were 1.53 km of coastline, coastal width ranging from 15.5 - 24.5 m, coastal slope ranging from 23.8 – 29.2˚, semi diurnal tidal type, nest distances from the highest tides ranging from 8 to 9.5 m, the lowest nest distance from 13.5 - 14.5 m, the nest distance of the plant ranges from 2 to 10 m, the nest substrate consists of sand, clay, and dust which is dominated by sand, measured nest size during the study ranges from L 62 - 65 cm, P 100 - 105 cm, D 36 - 38 cm, d 38 - 39 cm, t 23-25 cm, measured temperature range 27 ° C - 30 ° C, temperature measured 27 ˚C - 29˚C, pH value nest 7, measured rainfall 400 mm/month, nest number found 8 nests, consisting of 4 Green Turtle nest (Chelonia mydas) and 4 Hawksbill turtle nests (Eretmochelys imbricata). The highest hatching percentage was 95.23% and the lowest was 24.21%.Keywords: Green Turtle (Chelonia mydas), characteristic, bio-physical, hatching percentage, Turtle Island
JENIS-JENIS BAKTERI POTENSIAL PATOGEN PADA IKAN PATIN (Pangasius sp) DI KOLAM BUDIDAYA IKAN AIR TAWAR KOTA BELING TANAH AIR KECAMATAN TANJUNG ANOM PROVINSI SUMATERA UTARA Fransiska Falentina Naibaho; Dwi Suryanto; Rusdi Leidonald
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Catfish (Pangasius sp) is the most widely cultured fish in the aquaculture activities. One problem in fish culture is disease caused by bacteria. Fish samples were taken from Tanjung Anom district. The aim of this study was to know the potensial bacterial pathogens that cause infection in catfish.This study was held from July to August 2017 in BKIPM Laboratory of Class I Medan I. The isolation and characterization of bacterial pathogen of the catfish was performed by using dilution method and spread method. The organs target for isolation of pathogenic bacteria were kidney, liver and water. The result showed that Aeromonas salmonicida, Aeromonas sobria, Aeromonas caviae and Yersenia sp. were found as potential pathogenic bacteria.Keywords : Pangasius sp, Aquaculture pond, Bacterial Pathogens
IDENTIFIKASI BAKTERI POTENSIAL PROBIOTIK PADA SALURAN PENCERNAAN IKAN BAWAL AIR TAWAR (Colossoma macropomum) Identification of Potensial Bacteria of Probiotics in The Digestive Tract of Fresh Water Bream (Colossoma macropomum) Erna Lestari Indah Nababan; Dwi Suryanto; Indra Lesmana
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Probiotic are considered as beneficial bacteria. They may live in digestive tract of vertebrate including fish. Probiotic bacteria can inhibit the growth of pathogenic bacteria and improve water quality as well as control of bacterial diseases that occur in fish culture. They may suppress bacterial population through competition by producing antimicrobial compounds or through nutritional competition in the intestinal wall. Bawal (Colossoma macropomum) is a fish commodity that have high economic value and one of the ornamental fish that can be consumed. This study aimed to determine the potential probiotic bacteria live in the digestive tract of Bawal. The study was conducted to isolate and to identify potential bacterial species of probiotics that had been isolated.The results showed that potential probiotic bacteria in the digestive tract of Bawal were Enterococcus faecalis, Stapylococcus saprophyticus, Micrococcus luteus and Bacillus cereus.Keywords : Probiotic Bacteria, Enterococcus faecalis, Stapylococcus saprophyticus, Micrococcusluteus, Bacillus cereus.
DISTRIBUSI PENELURAN PENYU DI KECAMATAN SORKAM BARAT KABUPATEN TAPANULI TENGAH PROVINSI SUMATERA UTARA Sea Turtle Distribution in West Sorkam District, Central Tapanuli Regency, North Sumatera Province Winni J. S Simbolon; Hesti Wahyuningsih; Ani Suryanti
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Sea turtle is a group of reptiles that have a wide range of roaming, which inhabit tropical and subtropical seas around the world. Sea turtle is animal listed in CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora). One of the turtle nesting places in North Sumatra is the coastal area of West Sorkam, Central Tapanuli Regency, North Sumatra Province. Sea turtle distribution has done to know the location and general characteristics of turtle nesting location in West Sorkam District, Central Tapanuli Regency, North Sumatera Province is done by purposive sampling. The research has been conducted from the end of April until the beginning of September in West Sorkam District. The method used in this research is survey method, that is by observation or direct observation. The data collected in the form of primary data and secondary data. The results showed that turtle nesting spots in West Sorkam District cover the four villages of Pasar Sorkam village, Madani village, Tolok Roban village, Binasi village and last seen time in 2017. Type of sea turtle found is Olive Ridley (Lepidochelys olivacea) on May and July 2017 meanwhile in June it is unknown because the eggs are sold by fisherman.Keywords: seaturtle, nesting, West Sorkam, distribution.
PENGARUH AKTIVITAS WISATA TERHADAP KUALITAS AIR DANAU TOBA DI PANTAI SIBOLAZI DESA SIMANINDO KABUPATEN SAMOSIR SUMATERA UTARA Effect of Human Activities on Water Quality of Lake Toba at Sibolazi Beach Simanindo Village, Samosir District, North Sumatera Gracia Denata Tumanggor; Pindi Patana; Indra Lesmana
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The lake Toba is one of potential water resources for human activities such as agricultural industry development, fishery, transportation, irrigation, drinking water, tourism, and the protection of various aquatic biota. This research was conducted in June-July 2017 at Sibolazi Beach Simanindo Village, Samosir regency of North Sumatera, by analyzing the influence of tourism activity on water quality of Lake Toba and knowing the perception of visitor and manager towards Sibolazi Beach tourism. The parameters observed were Temperature, Brightness, Color, Flow Rate, pH, DO, BOD5, N, P and Total coliform. The results according to the Government Regulation No. 82 of 2001 and with the STORET rating system showed that stations 1 and 2 was classified in Class B (Moderately Polluted) with scores of -10 and -2, while station 3 was in Class A (Not Polluted) by fulfilling the quality standard class I. Visibility of visitors to Sibolazi Beach tour of 91% stated Beautiful and comfort level of 71% included in the category of Comfort and the level of visitor satisfaction of travel by 63%. Managers handle waste burning and there is no board for tourist to put the rubbish into the box.Key word : Water Quality, Lake Toba, Sibolazi Beach, Perceptions.

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