Gastropod Community An Vertical Distribution Pattern Of Littoraria Scabra (Linnaeus, 1758) In Mangrove Ecosystem, Tombariri District, Nort Sulawesi
DOI:
https://doi.org/10.35800/jip.v11i1.46497Keywords:
Microhabitat; , density;, diversity;, dominance;Abstract
The Coast water of Tombariri District is an area that has a main ecosystem like mangroves, seagrass, and reef. This research is to aim to know the species various, the structure of the gastropod community, and the vertical distribution pattern of Littoraria scabra in the mangrove ecosystem in Tombariri District, North Sulawesi. Process of gastropod sampling horizontally where transects were put horizontal coastline on every location including Mokupa, Elu, and Tambala. Every transect long has 65 m and also has every transect has 15 quadrats where every quadrat is one-meter square. Therefore, every transect has 15 quadrats, so a total of 45 quadrats. Every quadrant was put systematic method, that is, at terrestrial closing mangrove of 5 quadrats, middle mangrove of 5 quadrats, and coast close mangrove of 5 quadrats. Process of sampling particularly L.scabra where taking vertically, especially on microhabitats that is, roots, stems, branches, and leaves of mangroves. High measuring by meter unit, conducted from the ground where L.scabra found at mangrove until the top vegetation. Based on the result of observation on the identification of gastropod sampling found in the mangrove ecosystem, Tombariri District, North Sulawesi as many 235 of individuals consisting of 5 orders, 23 families, and 32 genera having 78 species. The density of species on every location Mokupa, Elu and Tambala, that is, (D) = 4.60, 5.47, and 5.60 in ind/m2, index of diversity,(H) = 2.54, 3.07, and 3.51 and index of dominance, ID = 0.04, 0.07 and 0.13.
Keywords: Microhabitat, density, diversity, and dominance
Abstrak
Perairan pantai Kecamatan Tombariri merupakan daerah yang memiliki ekosistim utama pesisir seperti mangrove, lamun, dan terumbu karang. Penelitian ini bertujuan untuk mengetahui jenis-jenis, struktur komunitas gastropoda dan pola distribusi vertikal spesies Littoraria scabra di ekosistem mangrove Kecamatan Tombariri, Sulawesi Utara. Proses pengambilan sampel gastropoda secara horizontal, di mana transek ditempatkan sejajar garis pantai pada setiap lokasi yakni di Mokupa, Elu, dan Tambala. Panjang setiap transek 65 m dan setiap transek memiliki 15 kuadrat di mana kuadrat berukuran 1 x 1 m. Setiap transek punya 15 kuadrat sehingga total kuadrat seluruh transek adalah 45 kuadrat. Penempatan kuadrat menggunakan metode sistematik yaitu di bagian darat 5 kuadrat, pertengahan 5 kuadrat dan mangrove pinggir laut 5 kuadrat. Proses pengambilan sampel secara vertikal khusus Littoraria scabra, di mikrohabitat akar, batang, cabang dan daun mangrove,Sementara pengambilan sampel L.scabra diukur ketinggian di mana spesies Littoraria scabra ditemukan ldi pohon mangrove dengan menggunakan meteran, dimulai dari dasar sampai ke ujung pohon mangrove. Berdasarkan hasil pengamatan dan identifikasi sampel gastropoda yang ditemukan di ekosistem mangrove Kecamatan Tombariri, Sulawesi Utara ditemukan sebanyak 235 individu yang terbagi ke dalam 5 ordo, 23 famili dan 32 genera dari 78 spesies. Kepadatan Jenis pada masing-masing lokasi = 4,60, 5,47, dan 5,60 ind/m2. Keanekaragaman H’= 2,54, 3,07, dan 3,51. Dominansi C= 0,04, 0,07, dan 0,13.
Kata Kunci : Mikrohabitat, Kepadatan, Keanekaragaman, Dominansi.
References
Abbot, R. T. 1965. American seashells. D. Van Nostrand Company Inc. Toronto.
Castro, P. dan Huber, M. E. 2016. Marine Biology. Tenth Edition. The McGraw-Hill Education, New York.
Cappenberg, H. A. W., Aziz, A., dan Aswandy, I. 2006. Komunitas moluska di perairan Teluk Gilimanuk, Bali barat. Oseanologi dan Limnologi di Indonesia, 40, 53-64.
Dahuri, R. 2003. Keanekaragaman hayati laut: aset pembangunan berkelanjutan Indonesia. Gramedia Pustaka Utama.
Giribet, G., dan Edgecombe, G. D. 2020. The invertebrate tree of life. Princeton University Press.
Lalita, J. D. 1997. Temporal and spatial variation in the community of the gastropods in habiting a Subtropical intertidal flat Okinawa with Its - environment relation ship. Unpublised Degree of Master of Science. The Graduate School of Science of the University of Ryukyus.
Lalita, J. D. 2016. Seleksi seksual, Keunikan Strategi Reproduksi Ovovivivar dan Siknifikansi Ekologi Littoraria scabra (Gastopoda: Littorinidae) di Ekosistem Hutan Mangrove Tombariri, Sulawesi utara. Universitas Brawijaya Program Pascasarjana, Fakultas Perikanan dan Ilmu Kelautan Malang, Disertasi.
Morton, J. E., dan Morton, J. E. 1967. Molluscs. London: Hutchinson.
Nontji, A. 2007. Laut Nusantara. Jakarta: Penerbit Djambatan.
Nurrudin, N., Hamidah, A., dan Kartika, W. D. 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).
Reid, D. G. 1984. The systematics and ecology of the mangrove-dwelling Littoraria species (Gastropoda: Littorinidae) in the Indo-Pacific (Doctoral dissertation, James Cook University).
Reid, D. G. 985. Habitat and zonation patterns of Littoraria species (Gastropoda: Littorinidae) in Indo-Pacific mangrove forests. Biological Journal of the Linnean Society, 26(1), 39-68.
Reid, D. G., dan Williams, S. T. 2004. The subfamily Littorininae (Gastropoda: Littorinidae) in the temperate southern hemisphere: The genera Nodilittorina, Austrolittoraria and
Underwood, A. J. 1979. The ecology of intertidal gastropods. In Advances in marine biology Vol. 16, pp. 111-210. Academic Press.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Iman Bilaleya, Jans Lalita, Rose O. S. E. Mantiri, Rene Ch. Kepel, Lawrence J. Lumingas, Anneke V. Lohoo
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
COPYRIGHT
Authors who publish with this journal agree to the following terms:
Authors hold their copyright and grant this journal the privilege of first publication, with the work simultaneously licensed under a Creative Commons Attribution License that permits others to impart the work with an acknowledgment of the work's origin and initial publication by this journal.
Authors can enter into separate or additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (for example, post it to an institutional repository or publish it in a book), with an acknowledgment of its underlying publication in this journal.
Authors are permitted and encouraged to post their work online (for example, in institutional repositories or on their website) as it can lead to productive exchanges, as well as earlier and greater citation of the published work (See The Effect of Open Access).
