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ANALYSIS OF CONTENT HEAVY METALS IN VARIOUS FISH SPECIES IN BATANG TORU RIVER, AEK PAHU TOMBAK AND AEK PAHU HUTAMOSU DISTRICT SOUTH TAPANULI Sirait, Hariadi; Barus, Ternala A; Wahyuningsih, Hesti
Jurnal Perikanan dan Kelautan Vol 18, No 2 (2013)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.18.2.12-25

Abstract

Research about content of heavy metals in various fish species have been done inBatang Toru River, Aek Pahu Tombak and Aek Pahu Hutamosu district South Tapanuliin March-April 2013. The purpose of this study was to determine the content of heavymetals that accumulate in the body of fish and the water, and to determine the waterquality of River Batang Toru, Aek Pahu Tombak and Aek Pahu Hutamosu. The methodfor determining the location of sampling for fish sample is "Purposive RandomSampling" in 6 (six) observation stations. Analysis of heavy metal analyzed on fishmeat and water using Atomic Absorption Spectrophotometric (AAS). The resultsshowed that the content of heavy metal in fish body didn’t exceeded the qualitystandard by SNI/7387/2009. Content of heavy metals accumulated in the water didn’texceeded the quality standard based on Regulation No.82 of 2001. Aek Pahu TombakRiver has a very good quality of water but Batang Toru River and Aek Pahu Hutamosuhave a good quality of water.
Keanekaragaman Makrozoobenthos pada Hutan Mangrove yang Direhabilitasi di Pantai Timur Sumatera Utara ', Onrizal; Simarmata, Fernades SP; Wahyuningsih, Hesti
Jurnal Natur Indonesia Vol 11, No 2 (2009)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (96.616 KB) | DOI: 10.31258/jnat.11.2.94-103

Abstract

Macrozoobenthos is a group of important fauna in mangrove ecosystem. Mangrove rehabilitation is required toincrease biodiversity and density of fauna, including macrozoobenthos. The aim of this research was to studyinfluence of biotic and abiotic factors to diversity and abundance of macrozoobenthos. The research was conductedat natural and rehabilitated mangrove forest in Percut Sei Tuan, east coastal of North Sumatra. The results showedthat density of macrozoobenthos were significantly correlated to the soil texture, soil organic carbon and pH.Besides, macrozoobenthos diversity was mostly influenced by stand basal area, salinity and silt proportion of soiltexture.
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
ANALISIS DAYA DUKUNG LINGKUNGAN PERAIRAN TERHADAP DAYA TARIK WISATA DI KECAMATAN AJIBATA KABUPATEN TOBA SAMOSIR (The analysis of Waterworks Carrying Capacity to Tourist Attactions in Ajibata District Toba Samosir) Enzelia R Gultom; Hesti Wahyuningsih; Yoes Soemaryono
AQUACOASTMARINE Vol 5, No 1 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Ajibata is one of the tourist area in Lake Toba travelers who declined significantly in recent years.The objectives of this research are determining the effect of the presence of ferry ports and floating net cages to the carrying capacity of the Ajibata waterworks tourist area, knowing the environmental suitability as a tourist destination and knowing the perception of tourists to the carrying capacity of the waterworks environment. The research was conducted from April-May 2016 in Ajibata district which was divided into three (3) stations. The existence of ferry port and floating net cage aquaculture activities have an impact on tourism activities seen through the content of nitrate and phosphate on all respectively < 0.50 and 0.01. Ajibata tour area is still quite suitable as a tourist area with suitability index of 66.66%. Carrying capacity region with the area of 15.476 m2 which is 767 people/day. Tourist adequate attraction of Ajibata tour area seen from the perception of tourists that are 66.66% stated a slight smell, brown waters of 78.57%, 38.46% dissatisfied in touring, lack of tourist facilities 83.33%, 53.84% stated quite comfortable, the accessibility stated as quite easy as much as 66.66%, and 69.23% stated beautiful, so Ajibata is less attractive as the tourist destination to be visited.Keywords: Capability Areas, Tourist Attractions, Keramba Cage, Travel Suitability Index, Ferry Ports
Penentuan Kualitas Air di Danau Kelapa Gading Kelurahan Kisaran Naga Kabupaten Asahan Provinsi Sumatera Utara Nathasya Zaharuddin; Hesti Wahyuningsih; 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

Lake Kelapa Gading is an artificial lake located in Kisaran Naga district, Asahan. Through the time, Lake Kelapa Gading has been used not only as a rain shelter, but also as a tourism place and floating fish cage. The purpose of this study was to determine the status of water quality of Lake Kelapa Gading. This research used Purposive Random Sampling method by selecting five activity-based-stations on Lake Kelapa Gading. Data were analyzed by using Storet Method and Pollution Index. Water sampling is done by using a modified Van Dorn Water Sampler. The measured parameters were Physics (temperature, TSS, Brightness and conductivity), Chemistry (DO, pH, BOD, COD, Nitrate and Phosphate) and Biology (total coliform). The result of water quality status using Storet Method, based on standard class II and III, scored -30 and -7 of each. The status of water quality using pollution index method, based on class II and III, scored 2.75 and 1.53 of each. Based on the Storet Method, the status of water quality of Lake Kelapa Gading was medium-polluted, while based on the pollution index, it was low-polluted.Keywords : Kisaran, Lake, Pollution, Water Quality.
STRUKTUR KOMUNITAS MAKROZOOBENTHOS DI KAWASAN MANGROVE DESA BAGAN DELI KECAMATANMEDAN BELAWAN (Structure of Macrozoobenthos Community on Mangrove in Bagan Deli Village, Medan Belawan district) Tri Wulandari; Hesti Wahyuningsih; 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

Activitieson mangrove areas Bagan Deli Village, Medan Belawan district resulted inwater quality decrease, causing changes in ecological condition of the biota, especiallymacrozoobenthos. This research aims to determine the community structure of macrozoobenthosand water quality based on Abundance and Comparison (ABC) curve. This research was conductedin the mangrove area of the village of Bagan Deli Medan District Belawan from March until April2016. It was done by using purposive random sampling method on three stations. The samplingmacrozoobenthos and watter quality measurement was done and a half month. There were 13species of macrozoobenthoswhich found, namely Telescopium telescopium, Turritella terebra,Nassarius reeveanus, Cerithide acingulata, Chicoreus capucinus, Nerita lineata, Cerithidea obtusa,Littoraria melanostoma, Cassidula aurisfelis, Natica Tigrina, Uca vocans and Uca rosea. Thehighest density is worth 900 ind/dm2. Diversity index was ranged from 1,79 to 2,09 which is in highrated level. Uniformity index was ranged from 0,7 to 0,82 and dominance index was ranged from0,15 to 0,2. The conditional of mangrove area in Bagan Deli village is in the medium pollutedcategory based on the ABC curve.Keywords : ABC curve, Community Structure, Macrozoobenthos, Pollution Levels
KEBIASAAN MAKANAN IKAN BAUNG (Mystus nemurus C.V) di Sungai Bingai Kota Binjai Provinsi Sumatera Utara Food Habit of Baung Fish (Mystus nemurus C.V) in Bingai River Binjai City, North Sumatera Province windy windy; Hesti Wahyuningsih; Ani Suryanti
AQUACOASTMARINE Vol 3, No 4 (2015): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Research of Baung’s food (Mystus nemurus C.V) was performed in Bingai river in June to August 2014. The purpose of this study was to determine the type of natu-ral food and the availability of natural forage baung (Mystus nemurus CV) in the Bingai River and general condition of the waters of the Bingai. Stomach contents were analyzed by using Index of preponderance. Stomach contents consisted of 8 types of fish, plant fibers, Thiara scabra, Planaria sp., Nodilittorina pyramidalis, Faunus ater, the rest of the insect, and coupled with parts not identified. The small fish is the main food, fiber plants is a complementary food, and Planaria sp., Thiara scabra, Nodilittorina pyramidalis, and Faunus ater are additional food. Benthos as natural food in the bottom waters which have the highest abundance was Thiara scabra. Baung selective about its food. Index of Electivity (E) indi-cates that Planaria sp. is a popular type of fish food benthos baung than other benthos.Keywords: Bingai river, Food habit, Mystus nemurus.
HUBUNGAN SEDIMENTASI TERHADAP STRUKTUR KOMUNITAS MAKROZOOBENTOS DI MUARA SUNGAI DESA PINTU AIR KABUPATEN LANGKAT PROVINSI SUMATERA UTARA Ira Mutiara Lumbangaol; Hesti Wahyuningsih; 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

Community activity gives influence to ecosystem condition in river estuary area in Desa Pintu Air and potentially affect water quality, characteristic and sedimentation rate, and abundance of marine biota especially macrozoobenthos. The study was conducted from May to July 2017 at Pintu Air Village, Langkat Regency, North Sumatra Province. The study was conducted by purposive sampling. The result showed that sedimentation rate in Desa Pintu Air estuary Station I was 3491,98 gr/ m2/day, Station II was 389,10 gr/m2/day, Station III was 369,15 gr/m2/day, Station IV equal to 1576,14 gr/m2/day, and Station V was 5353,51 gr/m2/day. Abundance of macrozoobenthos in Station I was 18 ind/m2 Station II of 17 ind/m2, Station III was 13 ind/m2, Station IV was 22 ind/m2 and Station V was 7 ind/m2 . The value of Diversity Index (H ') Station I was 4,08 Station II was 4,65 Station III was 4,83 Station IV was 5,12 and Station V was 4,07. Dominance index (C) Station I was 1,01 Station II was 0,32 Station III was 0,47 Station IV was 0,49 and Station V was 0,77. The value of sedimentation correlation to macrozoobentos abundance was -0,509, sedimentation correlation value to macrozoobentos diversity was -0.822, and the value of sedimentation correlation to macrozoobentos dominance was 0.850.Keywords : Sedimentation, Macrozoobenthos, Estuary
STUDI KOMPARASI JENIS MAKANAN IKAN KEPERAS (Puntius binotatus) DI SUNGAI AEK PAHU TOMBAK, AEK PAHU HUTAMOSU DAN SUNGAI PARBOTIKAN KECAMATAN BATANG TORU TAPANULI SELATAN Situmorang, Toberni S; Barus, Ternala A; Wahyuningsih, Hesti
Jurnal Perikanan dan Kelautan Vol 18, No 2 (2013)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.18.2.48-58

Abstract

Research about comparative study of food types of fish Keperas (P. binotatus) inthe river of Aek Pahu Tombak, Aek Pahu Hutamosu and river of Parbotikan DistrictBatang Toru that have aim to determine the types of food in fish and feeding habit ofPuntius binotatus. The research was occured in the river of Aek Pahu Tombak, AekPahu Hutamosu dan river of Parbotikan District Batang Toru in January-March2013.The method of fishing is used by elektrofising gear 12 volt. The analysis of dataincludes the relationship of fish length and weight, condition factor, bulk index (IndexPropenderance), the index of food options, wider food niche, and niche overlap of food.The result showed that fish keperas (P. binotatus) eat 6 groups of organisms that arepresent in all research station, types of Bacillariophyceae is the main food,Chlorophyceae, Monogononta, Ciliophora, and detritus as a supplement food, andCyanophyceae as additives food.
DISTRIBUSI DAN POLA PERTUMBUHAN IKAN BULAN-BULAN (Megalops cyprinoides Broussonet, 1782) DI SUNGAI BELAWAN Khairul, Khairul; Wahyuningsih, Hesti; Jumilawati, Erni
Jurnal Perikanan dan Kelautan Vol 19, No 2 (2014)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.19.2.56-61

Abstract

The purpose of the study to determine the distribution and growth patterns ofindo pacific tarpon fish (Megalops cyprinoides Broussonet, 1782) in Belawan River.This study was conducted in January-March 2014. Sampling was collected by purpo-sive sampling method. Sampling colected at 3 stations fishnet use with 30 times thestocking for each month. Distribution is calculated using the formula Khouw (2009)and the growth patterns using formulas King (1995). The results showed the analysisof Indo Pacific tarpon fish distribution uniform categorized months as earned valueid <1. Growth pattern of indo pacific tarpon fish is negative allometric means thelength faster than weight gain.