Gastropod Community Structure in Seagrass Ecosystems in North Minahasa Ganges Waters

Gorga Renaldi Sitanggang, Jety K. Rangan, Rudy D. Moningkey, Jans D.J Lalita, Gaspar D. Manu, Joshian N. W Schaduw

Abstract


The purpose of this study was to determine the types of gastropods in the seagrass ecosystem in the waters of Gangga I Village, North Minahasa Regency through Species Density, Relative Density, Diversity and Dominance in the waters of Gangga I Village, North Minahasa Regency. The results of the study obtained 126 individuals consisting of 13 species (7 genera) from 7 families (3 orders). The results of the analysis of the gastropod community structure showed that the highest species density value was at point 1 of 1.67 ind/m², followed by point 2 of 1.43 ind/m² and the lowest was at point 3 of 1.20 ind/m². The low density of gastropods at the 3 points is assumed to be caused by the environmental conditions in which they live, food sources, and fishing activities carried out by the local community. The relative density value of species with the highest percentage is at point 3, namely, the species Nassarius albescens 0.167% and the species with the lowest percentage is at point 1, namely the species Xenoturris millepunctata 0.020%. The diversity index value which includes the high criteria is at point 1 of 3.25, while the diversity value which includes the medium criteria is at point 2 of 2.87 and point 3 of 2.42. The dominance value obtained from the analysis ranges from C = 0.09 to 0.12 which is classified as low. while the value of diversity which includes the medium criteria is at point 2 of 2.87 and point 3 of 2.42. The dominance value obtained from the analysis ranges from C = 0.09 to 0.12 which is classified as low. while the value of diversity which includes the medium criteria is at point 2 of 2.87 and point 3 of 2.42. The dominance value obtained from the analysis ranges from C = 0.09 to 0.12 which is classified as low.

Keywords; Density; Diversity; Dominance; Environmental. 

Abstrak

Tujuan dari penelitian ini adalah untuk mengetahui jenis-jenis Gastropda di Ekosistem lamun perairan desa Gangga I, Kabupaten Minahasa Utara melalui: Kepadatan Spesies, Kepadatan Relatif, Keanekaragaman dan Dominansi di perairan Desa Gangga I Kabupaten Minahasa Utara. Dari hasil penelitian, diperoleh 126 individu yang terdiri atas 13 spesies (7 genera) dari 7 famili (3 ordo). Hasil analisis struktur komunitas gastropoda diperoleh nilai kepadatan spesies tertinggi pada titik 1 sebesar 1,67 ind/m², diikuti titik 2 sebesar 1,43 ind/m² dan yang terendah ada pada titik 3 sebesar 1,20 ind/m². Rendahnya kepadatan gastropoda pada ke 3 titik diasumsikan disebabkan oleh kondisi lingkungan tempat hidupnya, sumber makanan dan aktivitas perikanan yang dilakukan masyarakat setempat. Adapun Nilai kepadatan relatif jenis dengan persentase tertinggi ada pada titik 3, yaitu spesies Nassarius albescens 0,167% dan spesies dengan persentase terendah ada pada titik 1, yaitu spesies Xenoturris millepunctata 0,020%. Nilai indeks keanekaragaman yang termasuk kriteria tinggi terdapat pada titik 1 sebesar 3,25, sedangkan nilai keanekaragaman yang termasuk kriteria sedang terdapat pada titik 2 sebesar 2,87 dan titik 3 sebesar 2,42. Nilai dominansi yang diperoleh dari analisis berkisar C = 0,09 sampai dengan 0,12  yang tergolong rendah.

Kata kunci; Kepadatan; Keanekaragaman; Dominansi; Lingkungan


Keywords


Density; Diversity; Dominance; Environmental.

Full Text:

PDF

References


Abbott, R.T. & Dance S.P. 1990. Compendium of Seashells: A full-color guide to more than 4,200 of the world’s marine shells, Fourth. ed. Odyssey Publishing, United States of America.

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

DPPKI (Direktorat Pulau-Pulau Kecil Indonesia). 2012. Administrasi Pulau Gangga, Sulawesi Utara.

Firgonitha, A. F., A. V. Lohoo., dan A. D. Kambey. 2015. Community Structure of Gastrpods in Mokupa Beach, Sub-district of Tobariri, Minahasa Regency, North Sulawesi Province. Jurnal Ilmiah PLATAX, 3(1), 22-29.

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

Harminto, S. 2003. Taksonomi Avertebrata, Penerbit Universitas Terbuka, Jakarta.24-26.

Hasniar, M. L. 2013. Biodiversitas Gastropoda di Padang Lamun Perairan Mara’bombang Kabupaten Pinrang Provinsi Sulawesi Selatan. Torani (Jurnal Ilmu Kelautan dan Perikanan 23 (3): 127–136.

Hawkes, A. 1978. Invertebrate as Indicator of river Water Quality. In: A. James and L. Evinson (Eds). Biological Indocators of Water Qualiti John Wiley and Sons. Toronto.

Hinton, A. G. 1972. Shells of New Guinea and The Central Indo-Pasific. Robert Brown and Associates.

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.

Kusnadi, A. 2009. Molusca padang lamun kepulauan Kei Kecil. LIPI Press. Jakarta. 187 p.

Marwoto, R. M. dan A. M. Shintosari. 1999. Pengelolaan koleksi moluska. Dalam: Suhardjono, Y.R. (ed.) 1999. Pengelolaan Spesimen Zoologi. Puslitbang Biologi-LIPI, Jakarta: xv + 208 hlm.

Nurrudin, N. 2015. Keanekaragaman Jenis Gastropoda di Sekitar Tempat Pelelangan Ikan (TPI) Parit 7 Desa Tungkal I Tanjung Jabung Barat (Species Diversity of Gastropods around Parit Fish Auction, Tungkal I Village, West Tanjung Jabung). Biospecies, 8(2).

Odum, E. P. 1993. Dasar-dasar Ekologi Edisi Ketiga. Universitas Gajah Mada Press. Yogyakarta.

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

Robert, D., S. Soemodiharjo dan W. Kastoro. 1982. Shallow water Marine Molluscs of North West Java. Jakarta : Lembaga Oseanologi Nasional LIPI.

Roring, R. O., J. K. Rangan, A. D. Kambey, R. C. Kepel, S. V. Mandagi., dan C. F. Sondak. (2020). Community Structure of Gastropod in Seagrass Beds of Waleo Beach Waters, North Minahasa Regency. Jurnal Ilmiah PLATAX, 8(1), 102-109.

Rusyana, A. 2011. Pengembangan Program Perkuliahan Zoologi Invertebrata (P3ZI) Berbasis Keterampilan Berpikir Kritis. Bioedukasi: Jurnal Pendidikan Biologi, 4(2), 1-12.

Saripantung, G. L., J. W. S. Tamanampo, dan G. Manu. (2013). Struktur Komunitas Gastropoda di Hamparan Lamun Daerah Intertidal Kelurahan Tongkeina Kota Manado. Jurnal Ilmiah Platax, 1(3).

Sasekumar, A. 1974. Distribution of macrofauna on a Malayan mangrove shore. Journal of Animal Ecology 43(1): 51--69.

Tongkeles, S., F. B. Manginsela., J. K. Rangan., dan A. D. Kambey. (2020). Gastropod Density and Diversity in the Intertidal Zone of Malalayang Beach, Manado. Jurnal Perikanan Dan Kelautan Tropis, 10(3), 121-125.

WoRMS Editorial Board. (2021). World Register of Marine Species. Available from https://www.marinespecies.org at VLIZ. Accessed 2021-08-02. https://doi.org/10.14284/170.

Zulkifli. 2000. Sebaran Spasial Komunitas Perifiton dan Asosiasinya dengan Lamun di Perairan Teluk Pandan Lampung Selatan. Tesis. Program Pascasarjana IPB, Bogor.


Refbacks

  • There are currently no refbacks.


Copyright (c) 2021 Gorga Renaldi Sitanggang, Jety K. Rangan, Rudy D. Moningkey, Jans D.J Lalita, Gaspar D. Manu, Joshian N. W Schaduw

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

ISSN: 2302-3589

Creative Commons License
Platax Scientific Journal under a Creative Commons Attribution-NonCommercial 4.0 International License.

 

Office at:

Faculty of Fisheries and Marine Science, Sam Ratulangi University, Manado 95115, Indonesia


 

Indexed by: