Eva Utami
Program Studi Ilmu Kelautan, Fakultas Pertanian Perikanan dan Biologi, Universitas Bangka Belitung

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Kajian Perifiton di Ekosistem Lamun Pantai Puding Kabupaten Bangka Selatan Devi Ratna Sari; Wahyu Adi; Eva Utami
Journal of Tropical Marine Science Vol 4 No 1 (2021): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.751 KB) | DOI: 10.33019/jour.trop.mar.sci.v4i1.2055

Abstract

Periphyton play an important role in water productivity providers, as they can perform photosynthesis processes that can form organic substances from inorganic subtances. Periphyton attached to seagrass leaves is a factor supporting the primary productivity of seagrass area. This research was conducted in September 2018 at Puding beach south Bangka. The data collected consisted of community structure and abundance of periphyton, seagrass density, and aquatic chemical physics factors. Based on the analysis of seagrass density correlation with periphyton abundance obtained the value of coefficient of determinance (R2)= 0.9816 and correlation coefficient (r)= 0.9907 which indicates the relationship of seagrass density and periphyton abundance is positively correlated.
Korelasi Keanekaragaman Plankton Dengan Parameter Fisika-Kimia Perairan di Estuari Sungai Selan Kabupaten Bangka Tengah Ahlun Nazar; Eva Utami; Umroh Umroh
Journal of Marine Research Vol 13, No 3 (2024): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v13i3.39310

Abstract

Plankton adalah organisme hidup kecil yang mengapung di kolom air dan merupakan komponen ekosistem perairan yang sangat penting. Penelitian ini bertujuan untuk mengetahui parameter fisika-kimia perairan, komposisi plankton dan korelasi antara keanekaragaman plankton dengan parameter fisika-kimia perairan dengan menggunakan analisis statistik. Penelitian ini dilakukan pada bulan Juni 2022 di estuari Sungai Selan, Kabupaten Bangka Tengah. Penelitian dilakukan pada pagi hari. Pengambilan data plankton dilakukan dengan metode tarikan vertikal menggunakan jaring plankton. Sampel plankton yang dihasilkan diidentifikasi di bawah mikroskop dengan tiga ulangan untuk setiap sampel di setiap titik pengamatan. Hasil penelitian menunjukkan bahwa terdapat 24 jenis plankton yang ditemukan di estuary Sungai Selan. Kelimpahan plankton tertinggi terdapat pada titik 4 dengan 701,38 ind/L dan terendah pada titik 1 dengan 197,91 ind/L. Indeks keanekaragaman plankton tertinggi pada titik 5 sebesar 2.202 dan terendah pada titik 3 sebesar 1.549. Indeks keseragaman tertinggi pada titik 5 sebesar 0,858 dan terendah pada titik 4 sebesar 0,687. Dominasi tertinggi pada poin 3 sebesar 0,269 dan terendah pada titik 5 sebesar 0,169. Hubungan antara parameter fisika-kimia dan keanekaragaman plankton menunjukkan bahwa kecepatan aliran arus  berpengaruh paling signifikan terhadap keanekaragaman plankton di estuari Sungai Selan.   Plankton are tiny living organisms that float in the water column and are an important component of aquatic ecosystems. This study aims to determine the physico-chemical parameters of the waters, plankton composition, and the correlation between the diversity of plankton and the physico-chemical parameters of the waters using statistical analysis. This research was conducted in June 2022 at the Selan River estuary in Central Bangka Regency. The research was conducted in the morning. Plankton data collection was carried out using the vertical pull method using a plankton net. The resulting plankton samples were identified under a microscope with three replicates for each sample at each observation point. The results showed that 24 types of plankton were found in the Selan River estuary. The highest plankton abundance was at point 4 with 701.38 ind/L, and the lowest was at point 1 with 197.91 ind/L. The highest plankton diversity index was at point 5 of 2,202, and the lowest was at point 3 of 1,549. The highest uniformity index is at point 5 of 0.858, and the lowest is at point 4 of 0.687. The highest dominance is at point 3 of 0.269, and the lowest is at point 5 of 0.169. The relationship between physico-chemical parameters and plankton diversity shows that current velocity significantly affects plankton diversity in the Selan River estuary.