Community Structure of Gastrpods in Mokupa Beach, Sub-district of Tobariri,Minahasa Regency, North Sulawesi Province

Firgonitha, Alinaung F.; Lohoo, Anneke V.; Kambey, Alex D.

doi:10.35800/jip.3.1.2015.13215

Cited by 2 publications

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“…Kepadatan gastropoda dihitung dengan menggunakan formula (Odum, 1998) (Firgonitha et al 2015). Menurut Bugaleng et al (2015) keanekaragaman jenis Gastropoda di…”

Section: Analisis Dataunclassified

Gastropod Density and Diversity in the Intertidal Zone of Malalayang Beach, Manado

Tongkeles¹,

Manginsela²,

Rangan³

et al. 2020

JPKT

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This study held in Malalayang Beach Manado, aims to determine the density and diversity of Gastropods on the Malalayang coast of Manado. So the research objective is to find out the density and diversity of Gastropods in Malalayang Beach, Manado. The study using the line transect technique with 50 cm x 50 cm sized. The transect line is placed perpendicular to the coastline. The distance between the line transects is 20 meters. On each transect line 5 squares are placed. The distance between squares is determined using random numbers. Gastropod species found in Malalayang Beach Manado consist of 31 species and 17 genus, each consisting of the Archaeogastropoda that consists of 3 species, Mesogastropoda consists of 9 species, and the Order of the Neogastropoda of 19 species. The total density of Gastropods in Malalayang Beach in Manado is 6.27 individuals / m2 with diversity of 3.07, according to the criteria for diversity index of Malalayang coast having high diversity. Based on this, it is suggested that Manado Malalayang Beach can be maintained and carried out management that considers the feasibility of the environment as one of the requirements for sustainable development.Keywords: Gastropods, Density, Species DiversityABSTRAK Penelitian ini dilakukan di Pantai Malalayang Manado,berkaitan dengan permasalahan yang dikemukakan bagaimanakah kepadatan dan keanekaragaman Gastropoda di pantai Malalayang Manado. Maka tujuan penelitian adalah Mengetahui kepadatan dan keanekaragaman Gastropoda di Pantai Malalayang Manado. Pengumpulan data dengan pendekatan Teknik line transect menggunakan kuadrat berukuran 50cm x 50cm. Line transect diletakkan tegak lurus dengan garis pantai. Jarak antara line transect sebesar 20 meter. Pada masing- masing line transect diletakkan 5 kuadrat. Jarak antar kuadrat ditentukan dengan menggunakan angka acak. Spesies Gastropoda yang ditemukan di Pantai Malalayang Manado terdiri dari 31 spesies dan 17 genera yang masing-masing terdiri dari Ordo Archaeogastropoda 3 spesies, Ordo Mesogastropoda 9 spesies, dan Ordo Neogastropoda 19 spesies. Kepadatan total Gastropoda di Pantai Malalayang Manado 6.27 individu/m2 dengan keanekaragaman 3,07, Menurut kriteria indeks keanekaragaman pantai Malalayang memiliki keanekaragaman yang tinggi. Berdasarkan hal tersebut, maka disarankan agar Pantai Malalayang Manado dapat dijaga dan dilakukan pengelolaan yang mempertimbangkan sskelayakan lingkungan sebagai salah satu syarat pembangunan berkelanjutan.Kata kunci: Gastropoda, Kepadatan, Keanekaragaman Jenis

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“…Kepadatan gastropoda dihitung dengan menggunakan formula (Odum, 1998) (Firgonitha et al 2015). Menurut Bugaleng et al (2015) keanekaragaman jenis Gastropoda di…”

Section: Analisis Dataunclassified

Gastropod Density and Diversity in the Intertidal Zone of Malalayang Beach, Manado

Tongkeles¹,

Manginsela²,

Rangan³

et al. 2020

JPKT

Self Cite

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“…Semakin mendekati 1, berarti semakin tinggi tingkat dominasi oleh spesies tertentu, sebaliknya jika nilai mendekati 0 (nol) berarti tidak ada jenis tertentu yang mendominasi (Odum, 1993). (Bugaleng et al, 2015), (Firgonitha et al, 2015). Hal ini berkaitan dengan dominasi yang menunjukkan nilai yang sangat rendah atau di bawah 27 %.…”

Section: Indeks Dominasiunclassified

Gastropods In Seagrass Beds Of Tongkeina Beach Waters, Manado North Sulawesi

Bulahari¹,

Kambey²,

Lohoo³

2019

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The Tongkeina coastal waters have relatively extensive tidal areas. In addition to the seagrass community, there are also distinctive coastal communities such as mangroves and coral reefs. Coastal resources in this region are often used by the local community as a food source and have been used as a place of recreation and hotels as well. This is the reason for this study to find out the existence of gastropods on the seagrass beds in the Tongkeina area. It is expected that this study will provide information on the development and existence of the gastropods in coping with the pressure due to the construction of the hotel several years before. The methods of analysis used in this study including identification of gastropods, density, dominance, and diversity. The same research has been conducted several years before, and therefore this information was used as a comparison of the development of gastropods in the area. Thirty-five species (23 genera) were identified, with the highest density recorded was Nassarius gruneri, 0.8667 Individual/m², the dominance of 0.13972, and diversity (H'= 2.6853) which is greater than the results of the previous study 5 years ago (H’=1,9382). These results indicate that these waters are in the process of improving from previous environmental conditions.Keywords : Gastropod, coastal, domination, diversity, Tongkeina. ABSTRAKPerairan pesisir Tongkeina memiliki wilayah pasang surut relatif luas. Selain komunitas Lamun, juga terdapat komunitas khas wilayah pesisir lainnya seperti Mangrove dan Terumbu karang. Sumber daya pesisir di wilayah ini sering digunakan untuk kebutuhan makanan masyarakat, di samping itu telah dimanfaatkan sebagai tempat rekreasi dan Hotel. Hal ini menjadi alasan untuk mengetahui keberadaan Gastropoda di hamparan Lamun di daerah Tongkeina. Diharapkan dapat memberikan informasi perkembangan keberadaan Gastropoda, setelah melewati tekanan akibat dibangunnya hotel sejak beberapa tahun sebelumnya. Metoda analisis yaitu jenis-jenis Gastropoda, kepadatan, dominasi, dan keanekaragaman. Hal yang sama juga telah dilakukan beberapa tahun sebelumnya, sehingga informasi ini dapat dijadikan pembanding perkembangan Gastropoda di daerah tersebut. Diperoleh 35 spesies (23 genera), kepadatan tertinggi adalah Nassarius gruneri, 0.8667 Ind/m², dominasi sebesar 0.13972, dan keanekaragamannya (H’= 2.6853) lebih besar dari hasil penelitian 5 tahun sebelumnya yaitu . 1,9382. Hasil ini menunjukkan bahwa perairan tersebut berada dalam proses perbaikan kondisi lingkungannya.Kata Kunci : Gastropoda, pesisir, dominasi, keanekaragaman, Tongkeina.

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Community Structure of Gastrpods in Mokupa Beach, Sub-district of Tobariri,Minahasa Regency, North Sulawesi Province

Cited by 2 publications

References 0 publications

Gastropod Density and Diversity in the Intertidal Zone of Malalayang Beach, Manado

Gastropod Density and Diversity in the Intertidal Zone of Malalayang Beach, Manado

Gastropods In Seagrass Beds Of Tongkeina Beach Waters, Manado North Sulawesi

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