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Abundance and distribution pattern of macroinvertebrates at Watu Lumbung Beach, Gunungkidul, Yogyakarta Rahmawati, Yunita Fera; Putri, Rizka Apriani; Prakarsa, Tatag Bagus Putra; Edhiningtyas, Chrisshinta Iris; Hermawan, Lisa Agustina
Biogenesis: Jurnal Ilmiah Biologi Vol 12 No 1 (2024)
Publisher : Department of Biology, Faculty of Sci and Tech, Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/bio.v12i1.40247

Abstract

Macroinvertebrates are one of the bioindicators in aquatic ecosystems. The diversity and distribution patterns of functional groups of macroinvertebrate communities are assessed to determine water quality. The objective of this research was to figure out the abundance and distribution of macroinvertebrates in Watu Lumbung Beach, Gunungkidul, Yogyakarta. This study was conducted in May 2022 with the quadrat transect method using 1×1 m quadrats along Watu Lumbung Beach, Gunungkidul, Yogyakarta. Sampling was conducted at two randomly determined stations from the lowest low tide to the middle of the sea. The first station is located near Watu Lumbung reef, which has a distance of 50 m, while the second station is 250 m from the reef, so the distance between stations is 200 m. The Shannon-Weiner diversity index (H') was calculated by analyzing the data. The data obtained in this study are the results of the inventory of macroinvertebrate species at each sampling point and the number of individuals of each species. The results showed the abundance of macroinvertebrates on Watu Lumbung beach found as many as 16 species belonging to 13 families and classified into nine classes (Polychaeta, Malacostraca, Anthozoa, Echinoidea, Ophiuridae, Gastropoda, Polyplacophora, Pilidiophora and Demospongia). The family Ophiocomidae (Ophiocoma erinaceus and Ophiocoma scolopendrina) were the most abundant species at both observation stations. The diversity index is 1.94, which shows that the diversity of macroinvertebrates on Watu Lumbung Beach is categorized as moderate.
Abundance and Distribution Pattern of Macroinvertebrates at Watu Lumbung Beach, Gunungkidul, Yogyakarta Rahmawati, Yunita Fera; Putri, Rizka apriani; Prakasa, Tatag Bagus Putra; Aedhiningtyas, Chrisshinta Iris; Hermawan, Lisa Agustina
Biosfer: Jurnal Tadris Biologi Vol 15 No 2 (2024): Biosfer: Jurnal Tadris Biologi
Publisher : UNIVERSITAS ISLAM NEGERI RADEN INTAN LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/biosfer.v15i2.21705

Abstract

This research aimed to determine the abundance and distribution of macroinvertebrates at Watu Lumbung Beach, Gunungkidul, Yogyakarta. The study was conducted in May 2022 using the quadratic transect method with a 1x1 m plot. Sampling was carried out at two randomly selected stations. The first station was located 50 meters from the Watu Lumbung reef, while the second station was 250 meters away, resulting in a 200-meter distance between the two stations. Data analysis involved calculating the Shannon-Weiner diversity index (H'). This study identified 16 species of macroinvertebrates at Watu Lumbung Beach, classified into 13 families and nine classes: Polychaeta, Malacostraca, Anthozoa, Echinoidea, Ophiuridae, Gastropoda, Polyplacophora, Pilidiophora, and Demospongia. The family Ophiocomidae, specifically Ophiocoma erinaceus and Ophiocoma scolopendrina, was the most abundant at both stations. The diversity level was moderate, with a Shannon-Weiner index value of 1.94.ABSTRAK: Penelitian ini bertujuan untuk mengetahui kelimpahan dan sebaran makroinvertebrata di Pantai Watu Lumbung, Gunungkidul, Yogyakarta. Penelitian ini dilaksanakan pada bulan Mei 2022 dengan metode transek kuadrat dengan ukuran 1x1m. Pengambilan sampel dilakukan pada dua stasiun yang ditentukan secara acak. Stasiun pertama terletak di dekat karang Watu Lumbung dengan jarak 50 meter, sedangkan stasiun kedua berjarak 250 meter dari karang, sehingga jarak antar stasiun adalah 200 meter. Analisis data dilakukan dengan menghitung indeks keanekaragaman Shannon-Wiener (H’). Pada penelitian kali ini diketahui kelimpahan makroinvertebrata di Pantai Watu Lumbung berjumlah 16 spesies, dikelompokkan dalam 13 famili, dan diklasifikasikan dalam sembilan kelas (Polychaeta, Malacostraca, Anthozoa, Echinoidea, Ophiuridae, Gastropoda, Polyplacophora, Pilidiophora dan Demospongia). Famili Ophiocomidae (Ophiocoma erinaceus dan Ophiocoma scolopendrina) merupakan spesies yang paling melimpah di kedua stasiun pengamatan. Keberagaman tersebut termasuk dalam kategori sedang dengan nilai 1,94.