Article Per Year (5 Year)
p-Index From 2019 - 2024
0.61
P-Index
This Author published in this journals
All Journal JURNAL PESISIR DAN LAUT TROPIS JURNAL PERIKANAN DAN KELAUTAN TROPIS
Hermanto W. K. Manengkey
Program Studi Ilmu Kelautan, Fakultas Perikanan Dan Ilmu Kelautan, Universitas Sam Ratulangi, Manado
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences

Published : 8 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 8 Documents
Search

 1 
IDENTIFICATION OF BEACH DEVELOPMENT ON THE NEAR MANADO PORT AND TONDANO RIVER Bawangun, Yongky W.; Djamaluddin, Rignolda; Manengkey, Hermanto W. K.
JURNAL PESISIR DAN LAUT TROPIS Vol 1, No 1 (2013): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.1.1.2013.1282

Abstract

Coastal areas have been subjected to tourism activities, settlement and variousforms of industries. To support any development projects, coastal environment werereclaimed to be land, seaport and coastal protective constructions. Physically, coastconsists of several landscapes and one of them is in form of ‘beach’. In order to usecoastal environment properly and sustainably, there is a need for user to understand anyprocesses that work on the coast. Erosion is of importance problem in the coast, and thiscan be the reason for settlements and facilities destruction. The existence of jetty andnew land around the Manado Port has changed the hidrodynamic condition nearby. Thischange has facilitated the change in the sediment distribution near the mouth of TondanoRiver at certain level.
Morfologi Gisik Pantai Desa Kalasey Satu Kecamatan Pineleng Kabupaten Minahasa Sasauw, Wilfrits F. F.; Manengkey, Hermanto W. K.; Opa, Esry T.
JURNAL PESISIR DAN LAUT TROPIS Vol 1, No 2 (2013): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.1.2.2013.2008

Abstract

Aktivitasmanusia di wilayah pantai terlihat sangat berpengaruh pada proses perubahangaris pantai. Reklamasi, pertambahan penduduk, dan aktivitas manusia lainnyamemberikan dampak terhadap perubahan wilayah pesisir, seperti terjadinyaabrasi, pembuangan limbah, erosi pantai, dan sedimentasi. Berdasarkan surveiawal, wilayah Pantai Kalasey mengalami abrasi dan mengakibatkan hilangnyasebagian lahan daratan yang disebabkan oleh proses laut berupa gelombang danarus. Berdasarkan informasi masyarakat, proses abrasi telah berlangsung kurang30 tahun dan diperkirakan telah terjadi kemunduran garis pantai 500 meter.Hasil penelitian yang dilakukan pada periode bulan purnama, 08 – 09 Maret 2012didapatkan, gisik pantai kalasey tergolong kriteria lereng pendek dan landaidengan tunggang air pasut sebesar 2,80 cm, sementara periode gelombang sebesar2,25 – 8,97 detik. Arus permukaan terukur, maksimum 0,298 knot. Materialsedimen umumnya tergolong mulai dari pasir halus hingga kerakal. Bentuk kurvadistribusi granulometri sedimen gisik adalah asimetris kuat ke ukuran kecil.Peruncingan memiliki kriteria pada sangat platikurtik, platikurtik,leptokurtic, sangat leptokurtic, dan mesokurtik. Sebagai informasi awal, hasilstudi morfologi gisik kawasan wisata Pantai Kalasey ini berpeluang diujikanuntuk periode waktu lainnya.  Dengandemikian diharapkan upaya pengelolaan daerah ini ditopang dengan data daninformasi corak gisik dan daerah pantainya yang lebih memadai.
IDENTIFIKASI SAMPAH LAUT DI PANTAI TONGKAINA DAN TALAWAAN BAJO Djaguna, Asshidiq; Pelle, Wilmy E; Schaduw, Joshian NW; Manengkey, Hermanto WK; Rumampuk, Natalie DC; Ngangi, Edwin LA
JURNAL PESISIR DAN LAUT TROPIS Vol 7, No 3 (2019): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.7.3.2019.24432

Abstract

Marine debris is all material in the solids form that could not be found naturally (is a product of human activities) in the territorial waters (oceans, beaches) and could threat directly to the conditions and productivity of the territorial waters. Marine debris is defined by UNEP (2009) as solid material that is difficult to decompose, plant or processed results are discarded or left in marine and coastal environments. Marine debris consists of goods used by humans and deliberately disposed to the sea. Marine debris can be transported with ocean currents and winds from one place to another, even being able to travel long distances from the source. Common waste problems encountered in urban areas in Southeast Asian countries, as populations grew, followed by increased revenues potential garbage and various types of garbage produced. Marine debris classified as Meso and Macro trash with size > 5 mm to 1 m. Marine debris observation is carried out by modifying the method of coastline survey methods based on National Oceanic and Atmospheric Administration (2013). There are some important things to be prepared before doing the observation that was stranded in coastal areas such as the selection of observation locations, materials needed for observation and time observation. Based on the results of the research of marine debris samples obtained at the research site there are 2 characteristics of marine debris namely of macro flakes collected in twelve transect as much as 341 grains, while meso-debris contains as many as 94 goods. Also the debris with a category of micro-debris as many as 46 items with a total of 481 items and total weight total 1433.38 gr/m2.Keywords: Marine debris, Tongkaina, Talawaan Bajo Sampah laut atau marine debris adalah semua material berbentuk padatan yang tidak dijumpai secara alami (merupakan produk kegiatan manusia) di wilayah perairan (lautan, pantai) dan dapat memberikan ancaman secara langsung terhadap kondisi dan produktivitas wilayah perairan. Sampah laut, didefiniskan oleh UNEP (2009) sebagai bahan padat yang sulit terurai, hasil pabrik atau olahan yang dibuang atau dibiarkan di lingkungan laut dan pesisir. Sampah lautan dapat ditransport oleh arus laut dan angin dari satu tempat ke tempat lainnya, bahkan dapat menempuh jarak yang sangat jauh dari sumbernya. Permasalahan sampah umum dihadapi pada daerah perkotaan di negara Asia Tenggara, seiring meningkatnya jumlah penduduk, diikuti peningkatan pendapatan, sehingga mengakibatkan meningkatnya potensi timbulan sampah perkapita dan beragamnya jenis sampah yang dihasilkan (Nguyen & Schnitzer, 2009). Sampah laut ditelaah adalah yang tergolong sampah meso dan makro dengan ukuran > 5 mm sampai 1 m. Pengamatan sampah dilakukan dengan modifikasi metode shoreline survey methodology berdasarkan National Oceanic and Atmospheric Administration NOAA (2013). Ada beberapa hal yang penting untuk disiapkan sebelum melakukan pengamatan sampah yang terdampar di daerah pantai seperti pemilihan lokasi pengamatan, bahan yang di perlukan untuk pengamatan dan waktu pengamatan. Berdasarkan Hasil Penelitian sampel sampah laut yang diperoleh di lokasi penelitian terdapat 2 karakteristik sampah laut yaitu makro-debris yang dikumpulkan pada dua belas transek sebanyak 341 item, sedangkan meso-debris terdapat sebanyak 94 item, serta ditemukan juga sampah dengan kategori mikro-debris sebanyak 46 item dengan total keseluruhan 481 item dan berat total keseluruhan 1433,38 gr/m2. Kata Kunci: Sampah laut, Tongkaina, Talawaan Bajo
SEDIMEN LARUT DALAM ASAM DAN TIDAK LARUT DALAM ASAM DI PERAIRAN TELUK BUYAT DAN SEKITARNYA Manengkey, Hermanto WK
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 6, No 2 (2010)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.386 KB) | DOI: 10.35800/jpkt.6.2.2010.170

Abstract

Information on water conditions, such as sedimentation, physical factors, and coral reef ecosystem, needs to be understood that the stakeholders could optimally utilize the the area. This study was aimed at determining the sediment content of Buyat Bay and its surroundings dissolved and undissolved in the acid solution. Results found that the terrestrial sediments (Lithogenous) were not soluble in the acid solution and the marine ones (Biogenous) were soluble.
SEBARAN UKURAN BUTIRAN SEDIMEN GISIK SEKITAR GROIN PANTAI KALASEY Manengkey, Hermanto WK
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 7, No 3 (2011)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (696.455 KB) | DOI: 10.35800/jpkt.7.3.2011.191

Abstract

ABSTRACTThis study was conducted to examine the effectiveness of groins built along one of the littoral area in the coastal region of Manado. Logically, in this region the marine processes is strong enough to bring out the sediment, which is why in this area was built groin structures as shore protection. Groin is a structure designed to keep beach sand from being transported away by longshore current or to reduce the transportion of sand. This study was conducted by observing the size distribution of beach sediments around the groin in Kalasey beach. The groins on the Kalasey beach analized for their beach sediment samples were 8 units with 22 beach sediment sample collection spaces. Sediment samples were processed in the laboratory through washing and drying. The sediment was then separated with a sieve. Sediment left on each sieve is weighed and the weights were plotted. This study shows that the presence of groins in Kalasey beach was apparently quite effective to withhold the flow of sediment transport because of longshore current in this shore area.Keywords:.sediment size distribution, groin, Kalasey beach, Manado.ABSTRAKPenelitian ini dilaksanakan untuk melihat efektivitas groin yang dibangun di sepanjang litoral salah satu area dalam kawasan pantai Manado. Secara logis, pada kawasan ini proses laut cukup kuat dalam membawa sedimen keluar, itulah sebabnya sehingga pada kawasan ini dibangun struktur pelindung pantai berupa groin. Groin merupakan salah satu bangunan pelindung pantai yang direncanakan untuk menahan angkutan pasir oleh arus susur pantai (longshore current) atau mengurangi angkutan pasir. Penelitian ini dilakukan dengan mengamati keberadaan sebaran ukuran sedimen gisik yang terhampar di sekitar groin tersebut. Rangkaian groin di pantai Kalasey yang dianalisis sampel sedimen gisiknya adalah sebanyak 8 buah groin dengan 22 ruang pengambilan sampel sedimen. Sampel sedimen ditangani di laboratorium dengan melakukan pencucian dan pengeringan. Setelah kering, sedimen dipisahkan dengan ayakan. Sedimen yang tertinggal di masing-masing ayakan ditimbang dan hasilnya digambarkan dalam grafik peubah distribusi granulometri. Penelitian ini menunjukkan keberadaan groin di Kalasey ini tampaknya cukup efektif menahan laju arus susur pantai dalam mengangkut sedimen keluar dari kawasan pantai ini.Kata kunci: distribusi ukuran sedimen, groin, pantai Kalasey, Manado.
KANDUNGAN BAHAN ORGANIK PADA SEDIMEN DI PERAIRAN TELUK BUYAT DAN SEKITARNYA Manengkey, Hermanto WK
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 6, No 3 (2010)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (502.916 KB) | DOI: 10.35800/jpkt.6.3.2010.154

Abstract

Information on water conditions, such as sedimentation, physical factors, and coral reef ecosystem, needs to be understood that the stakeholders could optimally utilize the the area. This study was aimed to measure the organic content in the sediment content of Buyat Bay and its surroundings. Results found that the terrestrial sediments had higher percentage than from the surrounding waters.
KARAKTERISTIK GELOMBANG DI BEBERAPA KAWASAN PERAIRAN SEKITAR SEMENANJUNG MINAHASA Ginting, Intanta Br; Angmalisang, Ping Astony; Rampengan, Royke M; Djamaluddin, Rignolda; Manengkey, Hermanto WK; Wantasen, Adnan S
JURNAL PESISIR DAN LAUT TROPIS Vol 9, No 2 (2021): JURNAL PESISR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.2.2021.34504

Abstract

The waters surrounding the Minahasa Peninsula are important areas of various activities by use of coastal and marine space. This research aims, firstly to describe direction, period and height of waves at several water areas around the Minahasa Peninsula in various season. Secondly to analyze the characteristic of daily and seasonal waves. The wave parameter, which reanalysis by ECMWF for 5 years (September 2014 to august 2019) were used in this research.  By the analysis spasial-temporal, the results are presented by the rose grapich waves direction and stock chart. The wave propagation in the north season and transition season I, is dominated by the northeasterly wave. While the wave propagation in the southern season and the transitional season II, is more diverse directions. The characteristics of the waves formed in the southeast Minahasa waters in the north season and transitional season I, show that the wave period is greater than in the waters of Manado Bay and Bitung waters. Furthermore, the wave characteristics formed in the waters of the Minahasa Peninsula show a significant wave height in Bitung waters which is higher than the waters of Manado Bay and Southeast Minahasa waters.Keywords: Waves, ECMWF, Minahasa Peninsula Waters Perairan sekitar Semenanjung Minahasa merupakan kawasan penting dalam berbagai aktivitas pemanfaatan ruang pantai dan laut. Penelitian ini bertujuan, pertama untuk mendeskripsikan arah, periode, dan tinggi gelombang di beberapa kawasan perairan sekitar Semenanjung Minahasa dalam berbagai musim yang berlangsung. Kedua adalah menganalisis karakteristik gelombang harian dan musiman pada perairan sekitar Semenanjung Minahasa.  Data yang digunakan dalam penelitian adalah data reanalysis ECMWF (European Centre for Medium-Range Weather Forecasts) parameter gelombang selama 5 tahun mulai bulan September 2014 sampai Agustus 2019.  Dengan metode analisis spasial-temporal hasilnya disajikan dalam bentuk grafik mawar arah datang gelombang dan grafik kotak (stock chart). Rambatan gelombang pada musim Utara dan musim Peralihan I, arah datangnya didominasi dari arah Timur Laut.  Sedangkan rambatan gelombang pada musim Selatan dan musim Peralihan II, arah datangnya lebih beragam.  Karakteristik gelombang yang terbentuk di perairan Minahasa Tenggara pada musim Utara dan musim Peralihan I memperlihatkan periode gelombangnya lebih besar dari pada perairan Teluk Manado dan Perairan Bitung. Selanjutnya karakteristik gelombang yang terbentuk di perairan Semenanjung Minahasa memperlihatkan tinggi gelombang signifikan di perairan Bitung lebih tinggi dari pada perairan Teluk Manado dan perairan Minahasa Tenggara.Kata kunci: Gelombang, ECMWF, Perairan Semenanjung Minahasa
KONDISI KARANG SCLERACTINIA DI PERAIRAN BULUTUI KECAMATAN LIKUPANG BARAT KABUPATEN MINAHASA UTARA Umanailo, M. Takdir; Manembu, Inri M; Manengkey, Hermanto WK; Paruntu, carolus P; Lintang, Rosita A; Pelle, Wilmy E
JURNAL PESISIR DAN LAUT TROPIS Vol 9, No 2 (2021): JURNAL PESISR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.2.2021.35568

Abstract

Hard coral is one of the main components of this forming coral reef ecosystem. Bulutui waters have coral reef ecosystems that have a direct role as a source of livelihood for people around these waters. However, there are non-environmentally friendly human activities such as fishing using explosives or chemical solutions that cause coral reef damage. The aimed of this research was to find out the condition of hard coral’s percentage cover and to described the frequency of hard coral’s occurance therefore it’s could be representative data at this location. Coral data was collected by using PIT (Point Intercept Transect) method. The value of percentage cover of hard corals at Bulutui waters are 20.58% and the value is categorized damaged. The total frequency of hard coral’s occurance at station 1 are 66 and dominated by Coral Submassive (CS), at station 2 are 23 and dominated by Coral Massive (CM), at station 3 are 18 and dominated by Coral Foliose (CF) and then at station 4 are 140 and dominated by Coral Foliose (CF).Keywords: Percentage Cover, Scleractinia Coral, Bulutui Waters, PIT Methods.
Co-Authors Adnan Wantasen Angmalisang, Ping Astony Carolus Paulus Paruntu Djaguna, Asshidiq Edwin D Ngangi Esry T. Opa Ginting, Intanta Br Joshian N.W. Schaduw Lintang, Rosita AJ Manembu, Inri M Rignolda Djamaluddin Royke M Rampengan Rumampuk, Natalie DC Umanailo, M. Takdir Wilfrits F. F. Sasauw Wilmy E Pelle Yongky W. Bawangun