Carolus Paulus Paruntu
Fakultas Perikanan Dan Ilmu Kelautan, Universitas Sam Ratulangi. Jl. Kampus Unsrat Bahu, Manado 95115, Sulawesi Utara, Indonesia

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Priority Strategy for Mangrove Ecotourism Development at Budo Tourism Village Luturkey, Maureen Fenesya; Paruntu, Carolus Paulus; Rumengan, Antonius Petrus; Ompi, Medy; Sumilat, Deiske Adeleine; Manembu, Indri Shelovita
Jurnal Ilmiah Platax Vol. 13 No. 1 (2025): ISSUE JANUARY-JUNE 2025
Publisher : Sam Ratulangi University

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Abstract

This study was conducted for three months, starting from March to June 2024. The research method used was a qualitative descriptive method with a survey technique.  Data collection was carried out by collecting primary data and secondary data.  Data analysis to formulate priority strategies for developing mangrove ecotourism at Budo Tourism Village using SWOT analysis (strength, weakness, opportunity, threat) and strategy choice analysis to obtain key success factors (priority strategies). The results of this research obtained 7 (seven) priority strategies that can be used by stakeholders, especially BUMDES managers in Budo Village for the development of sustainable mangrove ecotourism. To create a public policy, it is recommended to the Budo Village government, especially the BUMDES manager, to pay attention and consider academic studies from the Faculty of Fisheries and Marine Sciences, UNSRAT, in the form of 7 (seven) key success factors or priority strategies. Keywords: key success factors, mangrove ecotourism, SWOT, strategic choice analysis   Abstrak   Riset ini dilaksanakan di kawasan ekowisata mangrove Desa Wisata Budo dan berlangsung selama 3 bulan, dimulai dari bulan Maret sampai Juni 2024.  Metode riset yang digunakan yaitu metode deskriptif kualitatif dengan teknik survei.  Pengumpulan data dilakukan dengan mengumpulkan data primer dan data sekunder.  Analisis data untuk merumuskan strategi pengembangan ekowisata mangrove Desa Wisata Budo menggunakan analisis SWOT (strength, weakness, opportunity, threat) dan analisis pilihan strategi untuk memperoleh faktor-faktor kunci keberhasilan (strategi prioritas). Hasil penelitian ini memperoleh 7 (tujuh) urutan strategi prioritas yang dapat digunakan oleh stakeholders, khususnya pengelola BUMDES Desa Budo untuk pengembangan ekowisata mangrove yang berkelanjutan. Dalam rangka membuat suatu kebijakan publik direkomendasikan kepada pemerintah Desa Budo, khususnya pengelola BUMDES untuk memperhatikan dan mempertimbangkan kajian akademik dari Fakultas Perikanan dan Ilmu Kelautan Unsrat berupa 7 (tujuh) faktor-faktor kunci keberhasilan atau strategi prioritas tersebut. Kata kunci: Analisis pilihan strategi, ekowisata mangrove, faktor-faktor kunci keberhasilan, SWOT
Species and Density of Limpets (Patellogastropoda) in The Intertidal Rocky Shore Akaiwa Poluan, Irene; Rumengan, Inneke F.M.; Paruntu, Carolus P.; Bara, Robert A.; Sumilat, Deiske A.; Boneka, Farnis B.
JURNAL PESISIR DAN LAUT TROPIS Vol. 14 No. 1 (2026): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.14.1.2026.66339

Abstract

Rocky intertidal shores are dynamic coastal ecosystems characterized by strong environmental gradients that generate distinct patterns of organism zonation. Limpets (Patellogastropoda) play a crucial role as primary herbivores and ecological indicators in these habitats. This study aimed to examine species composition and density of limpets in the upper and lower intertidal zones of the rocky intertidal shore of Akaiwa, Tomioka, Amakusa, Japan. The research was conducted from February to March 2025. Sampling was conducted using a quadrat sampling method with quadrats measuring 25 cm × 25 cm, randomly placed within a 10 m × 15 m study area across the upper and lower intertidal zones. Limpet specimens were identified based on shell morphological characteristics, and species density was calculated and statistically compared between zones using a t-student test. The results recorded eight limpet species belonging to the families Lottidae and Nacellidae, with seven species occurring in the upper zone and six species in the lower zone. Limpet density in the upper intertidal zone ranged from 1.60 to 20.80 ind/m² and was dominated by Lottia tenuisculpta, whereas the lower zone exhibited higher densities ranging from 1.60 to 28.80 ind/m², with a significant dominance of Cellana toreuma. The study concludes that limpet community structure is strongly influenced by vertical intertidal zonation. Further long-term studies are recommended to elucidate temporal dynamics of limpet communities in relation to seasonal variation and environmental change. Keywords: Amakusa, density, limpet, Akaiwa rocky shore, intertidal zonation   Abstrak Pantai intertidal berbatu merupakan ekosistem pesisir yang dinamis dengan gradien lingkungan yang kuat, sehingga membentuk pola zonasi organisme yang khas. Limpet (Patellogastropoda) berperan penting sebagai herbivora utama dan indikator ekologis pada ekosistem ini. Penelitian ini bertujuan untuk mengkaji komposisi jenis dan kepadatan limpet pada zona atas dan zona bawah pantai rocky intertidal Akaiwa, Tomioka, Amakusa, Jepang. Penelitian ini dilaksanakan pada Februari-Maret 2025. Pengambilan sampel dilakukan dengan metode quadrat sampling menggunakan kuadrat berukuran 25 cm × 25 cm yang ditempatkan secara acak di area 10 m × 15 m pada zonasi intertidal bagian atas dan bawah. Spesimen limpet diidentifikasi berdasarkan karakter morfologi cangkang, kemudian dianalisis kepadatan jenis dan diuji perbedaannya antar zona menggunakan uji t-student. Hasil penelitian menunjukkan bahwa delapan spesies limpet dari famili Lottidae dan Nacellidae teridentifikasi, dengan tujuh spesies pada zona atas dan enam spesies pada zona bawah. Kepadatan limpet di zona atas berkisar antara 1,60-20,80 ind/m² dan didominasi oleh Lottia tenuisculpta, sedangkan zona bawah memiliki kepadatan lebih tinggi, yaitu 1,60-28,80 ind/m², dengan dominasi Cellana toreuma yang berbeda nyata secara statistik. Kesimpulan penelitian menunjukkan bahwa struktur komunitas limpet dipengaruhi kuat oleh zonasi vertikal intertidal. Disarankan penelitian lanjutan dilakukan secara temporal untuk memahami dinamika komunitas limpet terhadap variasi musim dan perubahan lingkungan. Kata kunci: Amakusa, kepadatan, limpet, pantai berbatu Akaiwa, zonasi intertidal
Species and Density of Gastropods on The Intertidal Zone of The Rocky Shore at Akaiwa, Tomioka, Amakusa, Japan Karundeng, Joyfullness; Paruntu, Carolus P.; Rumengan, Inneke F. M.; Sinjal, Cathrien A. L.; Kemer, Kurniati; Kaligis, Erly Y.
JURNAL PESISIR DAN LAUT TROPIS Vol. 14 No. 1 (2026): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.14.1.2026.66342

Abstract

Gastropods are a class belonging to the phylum Mollusca, characterised by a single shell and radula. In intertidal ecosystems, they serve as herbivores, detritivores, or predators, and are often used as indicators of environmental health. This study examines the density of gastropods in the rocky shore habitat of Akaiwa, Tomioka Peninsula, Japan. Samples were collected using random quadrats (25x25 cm) in the upper (R1) and lower (R2) intertidal zones. The results show variations in density between zones. In the upper zone (R1), density ranged from 17.60 ind/m² (Japeuthria cingulata) to 52.80 ind/m² (Thais clavigera). Meanwhile, in the lower zone (R2), density ranged from 4.80 ind/m² (Clypeomorus petrosa) to 52.80 ind/m² (Lunella correensis). The species Cellana nigrolineata also showed high density in both zones (R1: 41.60 ind/m²; R2: 54.40 ind/m²). Overall, the density pattern on the rocky shore of Akaiwa indicates variation influenced by vertical zonation, where distinct physical characteristics and environmental pressures in each zone shape the unique distribution of gastropod abundance. Keywords: Akaiwa, density, gastropoda, intertidal zone, rocky shore   Abstrak Gastropoda adalah kelas dalam filum Moluska  yang dicirikan oleh cangkang tunggal dan radula. Dalam ekosistem intertidal, mereka berperan sebagai herbivor, detritivor, atau predator, serta sering menjadi indikator kesehatan lingkungan.  Penelitian ini bertujuan untuk menghitung kepadatan gastropoda di habitat pantai Rocky Akaiwa, Semenanjung Tomioka, Jepang. Sampel diambil menggunakan kuadrat acak (25x25 cm) pada zona intertidal atas (R1) dan bawah (R2). Hasil menunjukkan variasi kepadatan antar zona. Di zona atas (R1), kepadatan berkisar antara 17,60 ind/m² (Japeuthria cingulata) hingga 52,80 ind/m² (Thais clavigera). Sementara di zona bawah (R2), kepadatan berkisar antara 4,80 ind/m² (Clypeomorus petrosa) hingga 52,80 ind/m² (Lunella correensis). Spesies Cellana nigrolineata juga menunjukkan kepadatan tinggi di kedua zona (R1: 41,60 ind/m²; R2: 54,40 ind/m²). Secara umum, pola kepadatan di pantai Rocky Akaiwa menunjukkan variasi yang dipengaruhi oleh zonasi vertikal, dengan karakteristik fisik dan tekanan lingkungan yang berbeda di setiap zona membentuk distribusi kelimpahan gastropoda yang khas. Kata kunci: Akaiwa, kepadatan, gastropoda, pantai rocky, zona intertidal
Determination of Dominant Mangrove Species and Comparison of Tree and Sapling Composition in The Mangrove Area of Sonsilo Village, West Likupang District, North Minahasa Regency Mandei, Kania F.A.; Rumengan, Antonius P.; Paruntu, Carolus P.; Manembu, Indri S.; Ginting, Elvy L.; Djamaluddin, Rignolda
JURNAL PESISIR DAN LAUT TROPIS Vol. 14 No. 1 (2026): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.14.1.2026.66590

Abstract

Mangrove forests are key ecosystems in tropical coastal areas that function as environmental stability guards through physical roles (preventing erosion and tsunamis), chemical (absorbing pollutants and storing carbon), and biological (marine biota habitat and source of biodiversity). This study aims to identify the species and determine the dominant species of mangroves and the comparison of tree and sapling composition in the mangrove area of ​​Sonsilo Village, West Likupang District, North Minahasa Regency.  The research was conducted over three months (September–November 2024) using a purposive sampling method to collect data on density, canopy cover, and species frequency. The results revealed seven mangrove species: A. marina, B. gymnorrhiza, C. tagal, R. apiculata, R. mucronata, S. alba, and X. granatum.  Among these, three species (B. gymnorrhiza, R. apiculata, and R. mucronata) were dominant at both tree and sapling levels, exhibiting the highest Importance Value Index (IVI).  Mangrove species diversity in the area is categorized as low to moderate, as indicated by the Shannon-Wiener Diversity Index (H'), reflecting that species richness is not yet fully optimal. Analysis of the Dominance Index (D) and Evenness Index (J') suggests a relatively even distribution of individuals among species.  The study recommends regular monitoring and evaluation, as well as conservation efforts, to maintain the stability of the mangrove ecosystem and support its sustainable use. These findings highlight the importance of biodiversity management in preserving the ecological balance of mangrove habitats. Keywords: Sonsilo Village, mangroves, mangroves composition
Co-Authors Agung B. Windarto, Agung B. Agung Windarto Angmalisang, Ping Astony Antonius P. Rumengan Antonius Rumengan Ari B. Rondonuwu Arie Dp. Mirah Arnol R. Rau Baring, Vira Billy Theodorus Wagey Calvyn F. A. Sondak, Calvyn F. A. Darus S. Paransa Defny Silvia Wewengkang Deiske Adeliene Sumilat, Deiske Adeliene Deyne Rondonuwu Edwin D Ngangi Ellen J. Kumaat Elvy L. Ginting, Elvy L. Erly Y. Kaligis, Erly Y. Farnis B. Boneka Fernando Gultom, Fernando Fitje Losung Fontje G. Kaligis Ginting, Elvy Like Hanny Tioho Hendra Patrich Hengky J. Sinjal, Hengky J. Henki Rotinsulu, Henki Husen Rifai Indri Manembu Inneke F. M Rumengan J. E. M. Soputan Janny D Kusen Janny D. Kusen Jeremias R. Tuhumena Johan Tumiwa Johnny Budiman Joice R.T.S.L Rimper Joshian N.W. Schaduw Kamuntuan, Reffando Alfaro Fabio Fabien Kaparang Erens Karundeng, Joyfullness Kurniati Kemer Lenak, Maria Magdalena Lintang, Rosita Anggreiny J Losung, Agung Luturkey, Maureen Fenesya Mahmud, Maudy Rusmini Mamesah, Movrie Mandei, Kania F.A. Mangindaan, Remy Medy Ompi Mokoginta, Junio Marzuki Pratama Natalie D Rumampuk Nicky M. Wowor, Nicky M. Nofrita Souw, Nofrita Ockstan J. Kalesaran Oli, Aris Putra Paransa, Darus Sa'adah Johanis Paulus Kindangen Pemmy Tumewu Podung, Thania Theresia Poluan, Irene Rignolda Djamaluddin Rizald Max Rompas, Rizald Max Robert A. Bara Roeroe, Kakaskasen Andreas Rondonuwu, Arie B. Roring, Jordan Iglesias Royke M. Rampengan Rumampuk, Natalie Detty C. Rumengan, Antonius Petrus Ruru, Ricky Andreas Sambali, Hariyani Sammy N. J. Longdong Sandra Tilaar Sinjal, Cathrien A. L. Stenly Wullur Stephanus V Mandagi Sumilat, Deiske Adeleine Sumual, Sarah S. Suria Darwisito, Suria Tambunan, Rose Agustin Tommy D. Sondakh Veibe Warouw Yogo Pamungkas, Yogo Yuses Bahagia, Yuses