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Mudloifah, Istatik
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Immunology & microbiology Mathematics Physics

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Keanekaragaman Anemon di Zona Intertidal Pantai Perbatasan Tuban–Rembang Mudloifah, Istatik; Lailiyyah, Hidayatul; Putriarti, Dewi; Ilmiyah, Fahimatul
Sains dan Matematika Vol. 7 No. 2 (2022): Oktober, Sains & Matematika
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/sainsmat.v7n2.p83-88

Abstract

Anemon laut merupakan hewan invertebrata laut dari filum Cnidaria kelas Anthozoa yang memiliki bentuk seperti bunga. Habitat anemon laut yakni di perairan hangat sampai daerah dingin, berada di dasar laut, dan menempel pada substrat. Pantai Perbatasan terletak di Dusun Ngomben Desa Sukolilo, Kecamatan Bancar, Kabupaten Tuban, Provinsi Jawa Timur. Kekayaan alam laut di pantai tersebut terbilang cukup tinggi namun informasi mengenai keanekaragaman anemon laut di pantai Perbatasan Tuban – Rembang masih belum ada. Penelitian ini bertujuan untuk mengidentifikasi dan mendeskripsikan keanekaragaman anemon laut di Zona Intertidal kawasan Pantai Perbatasan Tuban – Rembang. Metode yang digunakan dalam penelitian ini yaitu metode Visual Encounter dan observasi langsung menggunakan garis transek 1 m × 1 m. Indeks keanekaragaman menggunakan persamaan Shannon Wienner. Hasil observasi didapatkan sebanyak 33 anemon laut di daerah Zona Intertidal. Hasil identifikasi menggunakan acuan Wildsingapore.com diketahui  anemon laut tersebut terdiri atas 3 spesies termasuk ke dalam famili yang sama yaitu Actiinidae. Spesies anemon laut tersebut yaitu Paracondylactis sinensis, Anthopleura hermaphroditica, dan Actinostella bradleyi. Kelimpahan paling tinggi adalah spesies Actinostella bradleyi pada zona intertidal bawah sebesar 54%. Indeks keanekaragaman spesies Anemon laut di Zona Intertidal Pantai Perbatasan Tuban – Rembang menunjukkan nilai indeks keanekaragaman sebesar 1.19. Hal tersebut tersebut menunjukkan bahwa keanekaragaman anemon laut di Zona Intertidal Pantai Perbatasan Tuban – Rembang berada pada kategori sedang.
Abundance and Potential of Asteroidea as Bioindicator of Lead (Pb) in the Coastal Zone at Bangkalan Regency, Madura Kurniawati, Yusfita; Maramis, Arnetta Yolanda; Mudloifah, Istatik; Rahayu, Dwi Anggorowati
Biotropika: Journal of Tropical Biology Vol. 11 No. 2 (2023)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2023.011.02.04

Abstract

Asteroidea is a marine invertebrate that has a role as a bioindicator, but the research related to the abundance and potential of Asteroidea as a bioindicator of lead on Madura Island is not to be done. This study aimed to analyse the effect of Pb concentration on Asteroidea population density in Bangkalan Regency. For collecting data, the transect plotting method with a plot measuring 1x1 m2 with 30 plots in the intertidal zone. Seawater sampling was divided into three stations, such as station I-0 meters (edge), station II-50 meters (middle) and station III-100 meters (deep zone), then the seawater samples were tested for lead Pb levels using the AAS method (atomic absorption spectrophotometer). Data analysis was carried out with quantitative descriptive with Asteroidea composition including diversity index, relative density and dominance index as parameters. The results obtained were sea star species, Cryptasterina sp. and Aquilonastra coronata, with a diversity index value of 0, a relative density of 100% and a dominance index of 1. The results for Pb concentration on Tengket Beach at a depth of 0 meters, 50 meters and 100 are 0.072 ppm; 0.16 ppm; 0.61 ppm and Pantai Modung at 0.5 ppm; 0.83 ppm; 0.82 ppm. Based on the analysis of the abundance of Asteroidea, the higher the concentration of Pb contained in the waters, the lower the density of Asteroidea. It was concluded that there was no relationship between Pb concentrations in seawater and sea star population density, found a high lead metal yield on the diversity and abundance of sea stars.
Co-Authors Dwi Anggorowati Rahayu Ilmiyah, Fahimatul Kurniawati, Yusfita Lailiyyah, Hidayatul Maramis, Arnetta Yolanda Putriarti, Dewi