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All Journal JURNAL PESISIR DAN LAUT TROPIS
Antonius P Rumengan
FPIK Unsrat Manado
Earth & Planetary Sciences

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LAJU PERTUMBUHAN KARANG Acropora formosa YANG DITRANPLANTASI PADA MEDIA TEMPEL DAN MEDIA GANTUNG Stevania M Runtuwene; Indri S Manembu; Noldy G.F Mamangkey; Antonius P Rumengan; Darus Paransa; Hariyani Sambali
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 1 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.1.2020.27553

Abstract

Corals are associations of millions polyps that live in symbiotic way with zooxanthellae algae. Most of the polyps live in colonies and form a reef. Coral reefs are rich ecosystems that contain diverse organisms living in it. However, the threat of damage increases with the pressure that enters the waters. Coral transplantation is one way of restorations that can be done to restore damaged corals by cutting live corals and then planting them in places where the corals have been damaged. This study aims to determine the growth rate of Acropora formosa corals that were transplanted on fixed and hanging media. Data was collected in Malalayang Coast Waters, Manado City, North Sulawesi. The research took place for seven months. Beginning with the coral transplant activity of Acropora formosa on fixed and hanging media, then continued with monitoring every month for six months. Transplanted corals were measured using a ruler to determine the length of the coral from the beginning to the end of the study and then the data was analyzed using Microsoft Excel. The results obtained for the average growth rate of Acropora formosa corals transplanted on fixed media were 0.8 cm and on hanging media 1.8 cm. Overall growth rate averaged 1.3 cm.Keywords: Coral, Coral Reef, Transplant, Acropora formosa.
KARBON PADA PADANG LAMUN DI PERAIRAN PULAU MANADO TUA Mikhael A Maramis; Billy Wagey; Antonius P Rumengan; Calvyn F A Sondak; Esry T Opa; Khristin F I Kondoy
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 2 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.2.2020.29950

Abstract

Peningkatan emisi gas rumah kaca (GRK) antara lain karbondioksida (CO2)  yang terjadi terus menerus mengakibatkan terjadinya pemanasan global dan perubahan iklim yang berdampak pada  pola cuaca dan mempengaruhi kehidupan di bumi. Ekosistem padang lamun diketahui memiliki kemampun dalam menyerap karbondioksida dan menyimpannya dalam waktu yang lama. Telah dilakukan penelitian untuk mengetahui keanekaragaman jenis lamun, presentasi tutupan dan kandungan karbon pada padang lamun di perairan Pulau Manado Tua. Untuk mengetahui keanekaragaman jenis dilakukan pengamatan secara langsung pada setiap stasiun penelitian dan untuk mengetahui presentase tutupan lamun menggunakan metode line transek kuadran dengan mengadopsi Seagrass Watch dimana sampel lamun juga diperoleh dari line transek kuadran pada keseluruhan stasiun kemudian dianalisis selanjutnya menggunakan metode Loss on ignition (LOI). Didapatkan hasil penelitian pada keseluruhan stasiun indeks keanekaragaman H’ 1 kategori sedang dengan presentase penutupan dan status kondisi pada stasiun negri 36% kurang kaya/kurang sehat, stasiun pangalingan  69% kaya/sehat, stasiun papindang 51% kurang kaya/kurang sehat : kandungan karbon pada keseluruhan stasiun yang didapat sebesar 222,85gC Kata Kunci :  Keanekaragaman Lamun, Presentase Penutupan, Kandungan Karbon, Line Transek,  Kuadran,  LOI (Loss On Ignition), Pulau Manado Tua.
ANALISIS STRUKTUR KOMUNITAS MANGROVE DI KAWASAN SEKITAR PT. CONCH KABUPATEN BOLAANG MONGONDOW George L Pandeirot; Antonius P Rumengan; Carolus P Paruntu; Surya Darwisito; Medy Ompi; Adnan S Wantasen
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 2 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.2.2020.30000

Abstract

This research was conducted for four months of April-July 2020. The purpose of this study was to determine species density, species relative density, species frequency, species relative frequency, species cover, species relative cover, index of the importance of mangrove species in the area around PT. Conch Lolak District, Bolaang Mongondow Regency, North Sulawesi Province. This research was conducted for four months of April-July 2020. The method used was a quadratic plot of 6 stations. Data collection at each station was made with a plot size of 10 × 10 m2 to measure the diameter of a tree at breast height (DBH), which has a minimum trunk circumference of 16 cm. The results showed that there were five types of mangroves, namely R. apiculata, R. mucronata, B. gymnorhiza, S. alba, and X. granatum. The highest relative density of species at station 2, namely R. mucronate 62.96%, while the lowest value at station 3, namely R. mucronata 8.77%, the highest relative frequency value at station 4, namely R. mucronata 33.33%, whereas the lowest value was at station 5, namely B. gymnorhiza 25.00%, the highest relative closure value was at station 5, namely R. mucronata 30.91%, while the lowest was at station 2, namely R. apiculata 12.88%, and the important value index the highest was at station 3, namely R. apiculata 138.09% and the lowest value was at station 5, namely X. granatum 35.05%.Kata Kunci: Mangrove, Structure in areas around PT. Conch. Conch, Rhizopora Abstrak Penelitian ini dilakukan selama 4 bulan April-Juli 2020. Tujuan penelitian ini adalah untuk mengetahui kerapatan jenis, kerapatan relatif jenis, frekuensi jenis, frekuensi relatif jenis, penutupan jenis, penutupan relatif jenis, indeks nilai penting jenis mangrove yang ada di kawasan sekitar PT. Conch Kecamatan Lolak, Kabupaten Bolaang Mongondow, Provinsi Sulawawesi Utara. Penelitian ini dilakukan selama 4 bulan April-Juli 2020. Metode yang dipakai adalah plot kuadrat sebanyak 6 stasiun. Pengambilan data pada setiap stasiun dibuat plot dengan ukuran 10 × 10 m2 untuk mengukur diameter pohon setinggi dada (DBH) yang memiliki lingkar batang minimal 16 cm. Hasil penelitian menunjukkan bahwa ada 5 jenis mangrove yaitu R. apiculata, R. mucronata, B. gymnorhiza, S. alba dan X. granatum. Kerapatan relatif jenis tertinggi pada stasiun 2, yaitu R. mucronata 62,96%, sedangkan nilai terendah pada stasiun 3, yaitu R. mucronata 8,77%, nilai Frekuensi relatif jenis tertingi pada stasiun 4, yaitu R. mucronata 33.33%, sedangkan nilai terendah pada stasiun 5, yaitu B. gymnorhiza 25.00%, nilai Penutupan relatif jenis tertinggi pada stasiun 5, yaitu R. mucronata 30,91%, sedangkan terendah pada stasiun 2, yaitu R. apiculata 12,88%, dan Indeks nilai penting tertinggi pada stasiun 3, yaitu R. apiculata 138,09% dan nilai terendah pada stasiun 5, yaitu X. granatum 35,05%.Kata Kunci: Mangrove, kawasan sekitar PT. Conch, Rhizopora  
STRUKTUR KOMUNITAS HUTAN MANGROVE DI DESA BUDO KECAMATAN WORI KABUPATEN MINAHASA UTARA Sarifudin Tidore; Calvyn FA Sondak; Antonius P Rumengan; Erly Y Kaligis; Elvy Like Ginting; Christine Kondoy
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 2 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.2.2021.35236

Abstract

Mangrove forest can grow on the muddy soil, along the coast and around the river estuaries that are affected by the tidal. The mangrove forest has a specific vegetation structure. Study on the structure of the mangrove forest community, was carried out in the Budo Village. Mangrove community structure data was taken using line transect method. A 100 m line was established from the sea perpendicular to the coast. A total of three line transects was made and each line has five 10 x 10 m plots with 20 m distance between plots. Distance between transect is 50m. This study found that three mangrove species Rhizophora apiculata, Sonneratia alba, and Bruguiera gymmorrhiza were found in the three transects during this study. The highest species biodiversity index was found in transect two (H’ = 0.97). R. apiculata has the highest density and relative density 0.05 ind/m2 and 67.57%. Both R. apiculata and S. alba have the highest frequency and relative frequency of 1.00 and 50% respectively. The highest species coverage and relative coverage area is belonging to S. alba in transect two, 25,89 and 63.57%. S. alba has the highest Important value index 140.72 in transect two.Keywords: Budo Village, Mangrove Forest, Community Structure. 
KOMPOSISI TIPE NEMATOSIT KARANG SCLERACTINIA, Pocillopora sp. DARI TERUMBU KARANG PANTAI TONTAYUO, BATUDAA PANTAI, GORONTALO Ajrin Y Nusi; Carolus Paulus Paruntu; Antonius P Rumengan; Farnis B Boneka; Noldy G F Mamangkey; Laurentius Th X Lalamentik
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 3 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.3.2021.36067

Abstract

The objective of this present study is to know the composition of nematocyst types from the coral Scleractinia, Pocillopora sp. The coral colonies of Pocillopora sp. were collected at Tontayuo coastal coral reefs, Batudaa Pantai, Gorontalo. This research was conducted for 3 months, from September-December 2020. The method of testing the type and composition of nematocysts was carried out using an Olympus CX41 type microscope with x100 objective lens magnification connected to a computer ST24 monitor equipped with optical view 7 application (software). Photos of Pocillopora sp. both alive and skeleton form are documented in this journal. The results of the current study showed that Pocillopora sp. has the types and composition of MpM of 91.49%, while HI is 8.51%. MpM is the dominant nematocyst in Pocillopora sp. Future research is recommended to identify this coral at the species level and to study more deeply the various coral species in the genus Pocillopora based on the types and morphology of nematocysts that are useful in the taxonomy of Scleractinia corals.Keywords: Gorontalo, HI, MpM, nematocyst, Pocillopora sp., Scleractinian coral
Co-Authors Adnan S Wantasen Ajrin Y Nusi Billy Wagey Calvyn F. A. Sondak, Calvyn F. A. Carolus P Paruntu Carolus Paulus Paruntu Christine Kondoy Darus S. Paransa Elvy Like Ginting Erly Y Kaligis Esry T Opa Farnis B Boneka George L Pandeirot Hariyani Sambali Indri S Manembu Khristin F I Kondoy Laurentius Th X Lalamentik Medy Ompi Mikhael A Maramis Noldy G F Mamangkey Noldy G.F Mamangkey Sarifudin Tidore Stevania M Runtuwene Surya Darwisito