Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal JURNAL PESISIR DAN LAUT TROPIS JURNAL ILMIAH PLATAX 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 Environmental Science

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 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.
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.
Hard Coral Cover and Coral Fish Density in Pantai Pall Waters,Tanjung Pulisan, East Likupang, North Minahasa Regency Maxs, Marten; Manembu, Indri S.; Mamangkey, Noldy G. F.; Boneka, Farnis; Manengkey, Hermanto W. K.; Manopo, Victoria E. N.
Jurnal Ilmiah Platax Vol. 9 No. 2 (2021): ISSUE JULY-DECEMBER 2021
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.9.2.2021.35331

Abstract

Tanjung Pulisan area in Likupang has been designated as part of the Likupang Special Economic Zone (SEZ), as one of five super-priority tourist destinations. To support this program, it is urgent to have an assessment based on coral reef and fish ecology that can be destined as a tourism target. Thus, the purpose of this study is to provide information on the percentage of hard coral cover, the percentage of hard coral genera, as well as the density of reef fish in the waters of Tanjung Pulisan. The author uses the Line Intercept Transect and Underwater Visual Census methods at three stations which are combined synergistically to obtain data on corals and target reef fish effectively. Data were analyzed using the Microsoft Excel program. The results of the analysis showed that the percentage of live coral cover in Tanjung Pulisan waters was categorized as moderate with an average percentage of 47.04%, consisting of 30.28% hard coral and 16.76% soft coral. In these waters, 32 genera of hard corals were found, and Porites as the most dominant genus, with an average percentage of 23.01 %. In addition, the total average density of target reef fish in this location was 0.185 ind/m2, with the most dominant family being Acanthuridae with an average density value of 0.096 ind/m2.Keywords: Hard coral; Likupang; Reef fish; Tanjung PulisanAbstrakKawasan Tanjung Pulisan, Likupang telah ditetapkan menjadi bagian dari Kawasan Ekonomi Khusus (KEK) Likupang, satu dari lima destinasi wisata super prioritas. Guna menunjang program ini, perlu dilakukan analisis berbasis ekologi karang dan ikan karang yang bisa dijadikan sebagai target wisata. Berdasarkan ini maka dilakukan riset tutupan karang keras, persentase genera karang keras, juga kepadatan ikan karang di lokasi tersebut. Metode yang digunakan adalah Line Intercept Transect dan Sensus Visual Bawah Air pada tiga stasiun yang dipadukan secara sinergis untuk memperoleh data karang dan ikan karang target secara efektif. Data dianalisis menggunakan program Microsoft Excel. Hasil analisis menunjukan bahwa persentase tutupan karang hidup di perairan Tanjung Pulisan terkategorikan sedang dengan persentase rata-rata sebesar 47,04 %, yang terdiri dari 30,28 % karang keras dan 16,76 % karang lunak. Di perairan ini ditemukan 32 genera karang keras, dengan genus yang paling dominan yaitu Porites dengan persentase rata-rata sebesar 23,01 %. Selain itu, total kepadatan rata-rata ikan karang target di lokasi ini adalah 0,185 ind/m2, dengan Famili yang paling dominan adalah Acanthuridae dengan nilai kepadatan rata-rata sebesar 0,096 ind/m2.Kata kunci:   Ikan karang; Karang keras; Likupang; Tanjung Pulisan
Co-Authors Esry T. Opa Farnis Boneka Indri Manembu Mamangkey, Noldy G.F Manopo, Victoria E. N. Maxs, Marten Rignolda Djamaluddin Wilfrits F. F. Sasauw Yongky W. Bawangun