Indeks Ekologi dan Pola Sebaran Gastropoda di Zona Intertidal Perairan Desa Berakit Kabupaten Bintan
Abstract
Gastropoda merupakan salah satu jenis komunitas bentik yang hidup di dasar perairan. Gastropoda merupakan salah satu kelas yang ada pada Filum Mollusca. Gastropoda memiliki peran penting diperairan sebagai rantai makanan dan hewan dasar sebagai pemakan atau penghancur serasah dari tumbuhan yang jatuh guna mensirkulasi zat-zat yang jatuh keperairan. Tujuan penelitian ini untuk mengetahui indeks ekologi dan pola sebaran gastropoda serta mengetahui parameter lingkungan perairan di zona intertidal. Penelitian ini dilaksanakan bulan Juli – Agustus 2022. Metode yang digunakan metode survei dan penentuan stasiun pengamatan menggunakan Random sampling menggunakan sofware visual sampling di Perairan Desa Berakit Kabupaten Bintan. Pengambilan sampel dilakukan dengan tansek kuadrat berukuran 1m x 1m pada saat surut dimana penentuan stasiun penelitian sebanyak 30 titik. Hasil penelitian mendapatkan 7 jenis gastropoda diantaranya : Canarium urceus, Pugilina cocholidium, Laevistrombus canarium, Polinices (euspira) catena, Clypeomorus bifasciata, Cerithium coralium, Pictocolumbella ocellata. Hasil analisis indeks ekologi dan pola sebaran yaitu nilai kepadatan gastropoda tertinggi pada jenis Canarium urceus dengan nilai 4,07 ind/m2 sedangkan jenis gastropoda terendah pada jenis Pictocolumbella ocellata dengan nilai 0,01 ind/m2. Hasil indeks keanekaragaman sebesar 1,556 (kategori sedang), dengan nilai keseragaman 0,8 (kategori populasi tinngi), dan nilai indeks dominansi sebesar 0,304 (kategori rendah). Pola sebaran terkategori merata dengan nilai 0,12 dan untuk paremeter perairan masih terbilang baik untuk kehidupan gastropoda.
Full text article
Authors
Copyright (c) 2023 Wiwin Wulandari
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
An author who publishes in Naturalis agrees to the following terms:
Author retains the copyright and grants the journal the right of first publication of the work simultaneously licensed under the Creative Commons Attribution-ShareAlike 4.0 License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal
The author is able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book) with the acknowledgement of its initial publication in this journal. The author is permitted and encouraged to post his/her work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of the published work (See The Effect of Open Access).
Submission of a manuscript implies that the submitted work has not been published before (except as part of a thesis or report, or abstract); that it is not under consideration for publication elsewhere; that its publication has been approved by all co-authors. If and when the manuscript is accepted for publication, the author(s) still hold the copyright and retain publishing rights without restrictions. Authors or others are allowed to multiply an article as long as not for commercial purposes. For the new invention, authors are suggested to manage its patent before published. The license type is CC-BY-SA 4.0.
Naturalis is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.