Community Structure of Gastropod in Seagrass Beds of Waleo Beach Waters, North Minahasa Regency

Richardo O. Roring, Jety K. Rangan, Alex D. Kambey, Rene Ch. Kepel, Stephanus V. Mandagi, Calvyn F. A. Sondak

Abstract


This study aims to determine the type of Gastropod and the community structure including Species Density, Relative Density, Diversity (H’), and Dominance (C). Based on observation, there is 124 individuals included in 11 species (7 genera) from 7 families (3 orders) obtained. The highest density value is 5,87 Ind/m2 by Euplica borealis, and has 35,48% of relative density. For the diversity, an index is H’ = 1,62 obtained, which is classified as low. This shows that seagrass beds in Waleo beach waters, North Minahasa Regency, there are several species obtained with abundant numbers of individuals compared to the other species, so the diversity index obtained relatively low. As for the range of dominance index is C = 0,36 to 0,44. The lowest value is in the transect number 1 while the highest in the transect number 2. This value shows that seagrass beds in Waleo beach waters, North Minahasa Regency there are no specific species that dominate in the community. Waleo beach waters, North Minahasa Regency has a temperature of about 29,3 °C illustrating the condition of the water temperature is relatively good for Gastropods' life. The salinity is 30 ‰ obtained, which is relatively good for Gastropod growth. pH obtained about 7 which is still relatively good for gastropods life.

Keywords: Gastropod, Community Structure, Waleo.

Abstrak

Penelitian ini bertujuan untuk menginventarisasi jenis-jenis Gastropoda serta mengetahui struktur komunitas termasuk: Kepadatan Spesies, Kepadatan Relatif, Keanekaragaman (H’), dan Dominansi (C). Berdasarkan hasil pengamatan diperoleh 124 individu yang termasuk dalam 11 spesies (7 genera) dari 7 famili (3 ordo). Nilai kepadatan tertinggi sebesar 5,87 Ind/m2 oleh spesies Euplica borealis, dan memiliki kepadatan relatif sebesar 35,48 %. Untuk indeks keanekaragaman diperoleh sebesar H’ = 1,62 yang tergolong rendah. Hal ini menunjukan bahwa daerah padang lamun perairan pantai Waleo, Kabupaten Minahasa Utara terdapat beberapa spesies yang diperoleh dengan jumlah individu yang melimpah dibandingkan jenis lainnya, sehingga indeks keanekaragaman yang diperoleh tergolong relatif rendah. Adapun untuk kisaran indeks dominansi yang diperoleh yaitu sebesar C = 0,36 sampai dengan 0,44. Nilai terrendah terdapat pada transek 1 sedangkan nilai tertinggi terdapat pada transek 2. Nilai tersebut menunjukan bahwa di padang lamun perairan Pantai Waleo, Kabupaten Minahasa Utara tidak terdapat jenis atau spesies tertentu yang mendominasi dalam komunitas tersebut. Wilayah perairan pantai Waleo, Kabupaten Minahasa Utara memiliki suhu 29,3 °C, menggambarkan bahwa kondisi suhu perairan tergolong baik untuk kehidupan Gastropoda. Salintas yang diperoleh sebesar 30 0/00, yang masih dalam kisaran baik untuk pertumbuhan Gastropoda. Derajat keasaman (pH) yang diperoleh yaitu 7 yang masih tergolong baik untuk kehidupan Gastropoda.

Kata Kunci : Gastropoda, Struktur Komunitas, Waleo.


Keywords


Gastropod, Community Structure, Waleo

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References


Abbott, R.T.& Dance., 1990. Compendium of Seashells : a Color Guide to More than 4.200 of the World’s Marine Shells, Fourth. ed. American Malacologists, Inc, United States of America.

Bulahari, A. Y., Kambey, A. D., & Lohoo, A. V. (2019). Gastropods In Seagrass Beds Of Tongkeina Beach Waters, Manado North Sulawesi. Jurnal Perikanan dan Kelautan Tropis, 10(2), 69-77.

Firgonitha, A., Lohoo, A., & Kambey, A. (2015). Community Structure of Gastrpods in Mokupa Beach, Sub-district of Tobariri,Minahasa Regency, North Sulawesi Province. Jurnal Ilmiah PLATAX, 3(1), 22-29. doi:https://doi.org/10.35800/jip.3.1.2015.13215

Habe, T., 1968. Shells of The Western Pacific in Color. Hoikusha Publishing Co., LTD, Japan.

Harminto, S., (2003), Taksonomi Avertebrata, Pusat Penerbitan Universitas Terbuka, Jakarta.

Hermanses, E., Rangan, J., & Kambey, A. (2018). Gastropod Community In The Intertidal Of Likupang Coast, Kampung Ambon, East Likupang District, North Minahasa Regency. Jurnal Ilmiah PLATAX, 6(2), 58-65. doi:https://doi.org/10.35800/jip.6.2.2018.20623

Hinton, A. G. (1972). Shells of New Guinea and the Central Indo-Pacific. Robert Brown and Associates.

Jasin, M. 1992. Zoologi Invertebrata. Sinar Wijaya. Surabaya.

Klumpp, D. W., Salita-Espinosa, J. S., & Fortes, M. D. (1992). The role of epiphytic periphyton and macroinvertebrate grazers in the trophic flux of a tropical seagrass community. Aquatic Botany, 43(4), 327-349.

Kondoy, K. I. (2017). Seagrass as carbon holder in Waleo coastal waters, North Sulawesi, Indonesia. AACL Bioflux, 10(5), 1342-1350.

Krebs, J.C. 1985. Ecology. The Experimental Analysis of Distribution and Abudance. Harper and Row Publisher, London.

Krebs, J.C. 1989. Ecologycal Methodology. Harper Collins Publishers. Columbia.

Kubo, H., Kurozumi, T. 1995. Molluscs Of Okinawa

Mudjiono dan Sudjoko. 1994. Fauna dan Molluska Padang Lamun di Pantai Lombok Selatan. in Kiswara, W., M.K. Moosa dan M. Hutomo. Struktur Komunitas Biologi Padang Lamun Di Pantai Selatan Lombok dan Kondisi Lingkungannya. Pusat Penelitian dan Pengembangan Oseanologi, Lembaga Ilmu Pengetahuan Indonesia. Indonesia.

Odum, E. P. 1998.Dasar-Dasar Ekologi Edisi Ketiga. Universitas Gajah Mada Press. Yogyakarta.

Odum, E.P. 1993. Dasar-dasar Ekologi. Terjemahan Tjahjono Samingan. Edisi Ketiga. Yogyakarta: Gadjah Mada University Press.

Ompi, M., & Lumingas, L. J. (1997). The effect of patch size on morphology and growth on the intertidal box mussel Septifer bilocularis L., in North Sulawesi, Indonesia. Phuket Marine Biological Center Special Publication.

Prajitno, A. (2009). Biologi Laut. Universitas Brawijaya. Malang.

Roring, I., Manginsela, F., & Toloh, B. (2013). The Existence of Intertidal Gastropods in Malalayang Beach, North Sulawesi. Jurnal Ilmiah PLATAX, 1(3), 132 - 137. doi:https://doi.org/10.35800/jip.1.3.2013.2571

Saripantung, G., Tamanampo, J., & Manu, G. (2013). Community Structure of Gastropod in Seagrass on Intertidal Area in The Tongkeina Village of Manado City. Jurnal Ilmiah PLATAX, 1(3), 102 - 108. doi:https://doi.org/10.35800/jip.1.3.2013.2567

Suwignyo S, Widigdo B, Wardiatno Y dan Krisanti M. 2005. Avertebrata Air Jilid 1. Jakarta (IDN): Penebar Swadaya.

Tomascik, T., A. Nontji and M. K. Moosa. 1997. The Ecology of the Indonesian Seas. Periplus Edition (Hk) Ltd. Singapore.

Tongkeles, S., Manginsela, F. B., Rangan, J. K., & Kambey, A. D. (2020). Gastropod Density and Diversity in the Intertidal Zone of Malalayang Beach, Manado. JURNAL PERIKANAN DAN KELAUTAN TROPIS, 10(3), 121-125.




DOI: https://doi.org/10.35800/jip.8.1.2020.28268

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