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All Journal AKULTURASI (JURNAL ILMIAH AGROBISNIS PERIKANAN) AQUATIC SCIENCE & MANAGEMENT JURNAL ILMIAH PLATAX
Mantiri, Rose O.S.E.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Environmental Science

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Journal : JURNAL ILMIAH PLATAX

 1 
Community structure and distribution of Gastropoda in the intertidal area of the Waleo districts coast north Minahasa Kahembau, Vinawati; Lalita, Jans Djoike; Rangan, Jety K.; Ginting, Elvy Like; Mantiri, Rose O.S.E.; Moningkey, Ruddy D.
Jurnal Ilmiah Platax Vol. 11 No. 2 (2023): ISSUE JULY-DECEMBER 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i2.45979

Abstract

This research is to know community structure and gastropod distribution include species density (individual/m2), relative density (%), diversity indices (H’), Evenness indices (E), Richness indices (R), Dominance indices (D) and Dispersion indices (Id).This inestigation was carried out February 2020 in intertidal area, Waleo beach in Minahasa Northern. Quadrat transect placed via area sampling based on substrate difference. Placing quadrat transect was centr on three points that different with distance with point 100 m and distance between quadran 10 m with size quadrat 50 cm2. Based on this research was find 22 species include Cypraea tigris, Terebra areolata, Cymbiola nivosa oblita, Euplica borealis, Turbo argyrostomus, Cypraea moneta, Conus cumingii, Cypraea errones, Tectus fenestrats, Nerita ascensionis, Nerita exuvi, Nerita albicilla, Nerita polita, Nerita Picea, Vasum turbinellus, Lunella cinerea, Nassarius globosus, Nassarius pullus, Vexillum acupictum, Clypeomorus pellucida, Vexillum ebenus, Terebralia sulcata. Five order include Neogastropoda, Littorinimorpha, Cycloneritida, Caenogastropoda, Trochida. Analysis result to species density is the highest 0,40 (individual/m2),relative density, Nerita polita 12,63 %, index of diversity,H’= 3,…, index of evenness, E = 0,97, index of richness, R = 0,22 and index of dominance, range D =0,13-0,18 concluded that no species dominantly. Gastropoda distribution pattern in intertidal area based 3 stations that showed all pattern of clumed distribution. Keywords: Gastropoda, Intertidal, density, spread pattern Abstrak Penelitian ini bertujuan untuk mengetahui struktur komunitas dan pola penyebaran gastropoda meliputi Kepadatan spesies (Ind/m2), Kepadatan Relatif (%),Indeks Keanekaragaman (H’), Indeks Keseragaman (E), Indeks Kekayaan spesies (R), Indeks Dominansi (D), dan indeks Sebaran. Penelitian ini di lakukan pada bulan februari 2020 yang berlokasi di daerah intertidal pantai Waleo Kabupaten Minahasa Utara. Penempatan transek kuadran di tentukan melalui teknik area sampling berdasarkan perbedaan substrat, penempatan transek dan kuadran di pusatkan di tiga titik yang berbeda-beda dengan jarak antara titik 100m dan jarak antara kuadran 10m dengan ukuran kuadran 50x50cm. Dari hasil penelitiaan di temukan 22 spesis meliputi Cypraea tigris, Terebra areolata, Cymbiola nivosa oblita, Euplica borealis, Turbo argyrostomus, Cypraea moneta, Conus cumingii, Cypraea errones, Tectus fenestrats, Nerita ascensionis, Nerita exuvi, Nerita albicilla, Nerita polita, Nerita Picea, Vasum turbinellus, Lunella cinerea, Nassarius globosus, Nassarius pullus, Vexillum acupictum, Clypeomorus pellucida, Vexillum ebenus, Terebralia sulcata. Dan 5 ordo Neogastropoda, Littorinimorpha, Cycloneritida, Caenogastropoda, Trochida. Hasil analisis terhadap kepadatan spesis nilai tertinggi terdapat pada spesis N.polita sebesar 0,40 Ind/m² dan kepadatan realtif tertinggi juga terdapat pada spesis N.polita sebesar 12,63 %, nilai indeka keanekaragaman H’= 9,49 yang merupakan kategori tinggi, nilai dari indeks keseragaman secara keseluruhan (E)=0,97 dalam kondisi , dan nilai indeks kekayaan spesis yaitu 0,22, indeks Dominansi (D) = 0,13 – 0,18 disimpulkan tidak ada yang mendominasi, Pola sebaran gastropoda di daerah intertidal dari ketiga stasiun menunjukan pola sebaran secara mengelompok. Wilayah pantai Waleo Kabupaten Minahasa Utara memiliki suhu 31,3ºC. Derajat keasaman pH yang di peroleh yaitu 7 Salinitas yang di peroleh sebesar 34‰ yang masih dalam kisaran baik untuk gastropoda. Kata kunci : Gastropoda, intertidal, kepadatan, pola sebaran
Aquatic Pollution Study Based on Analysis of Mollusk Diversity as a Bioindicator Lohoo, Anneke V.; Manu, Gaspar; Mantiri, Rose O.S.E.; Kambey, Alex D.
Jurnal Ilmiah Platax Vol. 11 No. 2 (2023): ISSUE JULY-DECEMBER 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i2.51420

Abstract

This research aims to determine the condition of coastal water quality at Sam Ratulangi University's Marine Field Station by looking at the diversity of mollusks and the physical and chemical parameters of the waters as supporting parameters. The method used to determine the research location was the Quadratic Transect method, while to determine the sampling point the random sampling method was used, namely selecting sampling locations randomly based on areas with dominant activities. The mollusks taken are mollusks that are still alive and can be seen attached, both on the surface of the substrate and inside the substrate. Observations of the place and substrate where the individual attached/immersed themselves were carried out by measuring the water quality, where the temperature was 300C, salinity 28%0, and pH 8). The identification results obtained were 29 types. In the final step after the sample has been identified, all data obtained will be analyzed to obtain results from the research carried out. This research is expected to provide information about the condition of water pollution at Sam Ratulangi University's Marine Field Station in determining management policies and preserving the aquatic ecosystem. Keywords: Bioindicators, Molluscs, Diversity, Pollution. Abstrak Penelitian ini bertujuan untuk mengetahui kondisi kualitas perairan pesisir Marine Field Station Universitas Sam Ratulangi dengan melihat keanekaragaman moluska serta parameter fisika kimia perairan sebagai parameter pendukung.  Metode yang digunakan dalam menentukan lokasi penelitian adalah metode Transek Kuadrat, sedangkan untuk menentukan titik pengambilan sampel digunakan metode random sampling, yaitu pemilihan lokasi pengambilan sampel secara acak berdasarkan kawasan dengan kegiatan yang dominan. Moluska yang diambil adalah Moluska dalam keadaan masih hidup yang terlihat menempel, baik di permukaan substrat maupun di dalam subtrat. Pengamatan tentang tempat maupun substrat dimana individu tersebut menempel/membenamkan diri dilakukan pengukuran kualitas air, di mana suhu 300C, salinitas 28%0 dan pH 8). Hasil  indentifikasi diperoleh sebanyak 29 jenis. Langkah terakhir setelah sampel diidentifikasi, semua data yang diperoleh akan dianalisis untuk memperoleh hasil dari penelitian yang dilakukan. Penelitian ini diharapkan sebagai informasi tentang kondisi pencemaran perairan Marine Field Station Universitas Sam Ratulangi dalam penentuan kebijakan pengelolaan serta menjaga kelestarian ekosistem perairan. Kata kunci: Bioindikator, Moluska, Keanekaragaman, Pencemaran.
Co-Authors Alex D. Kambey Anneke V. Lohoo Asthisa, Dias Deiske Adeliene Sumilat, Deiske Adeliene Durand, Swenekhe S. Gaspar Manu Ginting, Elvy Like Kahembau, Vinawati Lalita, Jans Djoike Lexy K. Rarung Mantiri, Desy M. H Moningkey, Ruddy D. Rangan, Jety K. Rompas, Rizal M. Sinjal, Annita Ch. Siti Suhaeni, Siti Steelma V. Rantung Udampo, Mitrani