Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Jurnal Harpodon Borneo Biofaal Journal JURNAL ILMIAH SATYA NEGARA INDONESIA
Marlenny Sirait, Marlenny
Jurusan Budidaya Perikanan, FPIK Universitas Satya Negara Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Social Sciences

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
KOMPARASI INDEKS KEANEKARAGAMAN DAN INDEKS DOMINANSI FITOPLANKTON DI SUNGAI CILIWUNG JAKARTA Sirait, Marlenny; Rahmatia, Firsty; Pattulloh, Pattulloh
Jurnal Harpodon Borneo Vol 10, No 2 (2017): Volume 10 No.2 Oktober 2017
Publisher : Jurnal Harpodon Borneo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (746.767 KB) | DOI: 10.35334/harpodon.v10i2.449

Abstract

Phytoplankton is a biological parameter that can be used as an indicator to evaluate the quality and level of fertility of a water. Changes in water quality as a result of the large load of nutrients entering the Ciliwung River will affect the life of phytoplankton. This study aims to see the comparative index of diversity (H ') and the Dominant Index (D) of phytoplankton in Ciliwung River from upstream to downstream. The study was conducted from December 2016 to February 2017 from upstream to downstream of the Ciliwung River. From the index analysis of diversity and index of dominance, there was a significant difference, where the downward index of diversity (H ') of phytoplankton was lower, ranged between 1,21 and 2,6 (the index of diversity ranging from low to medium).  Otherwise, the dominance index showed the opposite result. The more downstream the dominance index is higher than the upstream, ranged between 0,09 and 0,68. Thus the index of diversity and the index of phytoplankton dominance has a relationship inversely. Differences of diversity index and dominance index in upstream to downstream poses an imbalance of ecosystem in Ciliwung River.             Keywords: Ciliwung, diversity index, Dominant Index, Phytoplankton
THE EFFECT OF NORMALIZATION ON THE ZOOPLANKTON STRUCTURE IN CILIWUNG RIVER Rahmatia, Firsty; Sirait, Marlenny; Ahmed, Yasser
Biofaal Journal Vol 1 No 1 (2020): Biofaal Journal
Publisher : Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (853.302 KB) | DOI: 10.30598/biofaal.v1i1pp27-36

Abstract

Program normalisasi Sungai Ciliwung menjadi program prioritas pemerintah pusat bersama dengan Pemerintah Provinsi DKI Jakarta yang dimulai sejak tahun 2013. Pemerintah Provinsi (Pemprov) DKI Jakarta menargetkan normalisasi Kali Ciliwung rampung pada tahun 2018 mendatang. Normalisasi bertujuan untuk mengembalikan fungsi sungai dalam menampung, menyimpan dan mengalirkan air yang berasal dari curah hujan ke danau atau ke laut secara alami. Salah satu upaya yang bisa dilakukan untuk mengevaluasi normalisasi adalah dengan memantau kualitas perairan dengan melakukan penelitianmenggunakan indikator biologis seperti plankton dan ikan. Sebelumnya, pada tahun 2016 peneliti telah melakukan penelitian terhadap kelimpahan fitoplankton di Sungai Ciliwung, sehingga perlu dilakukan penelitian lanjutan untuk mengetahui trophic level diatas fitoplankton, yaitu zooplankton. Stasiun pengambilan sampel adalah Sungai Ciliwung bagian hulu sampai dengan hilir. Adapun 10 (sepuluh) stasiun pengamatan yang terbagi atas 3 (tiga) segmen; yaitu Segmen I (Jembatan Gadog, Katulampa, Sentul); segmen II (Kelapa Dua, Kalibata, Kampung Melayu, Manggarai), dan segmen III (Pejompongan, K.H. Mas Mansyur dan Teluk Gong). Pengambilan airdilakukan secara komposit pada tiga titik sampel yangmewakili bagian tengah, tepi kiri, dan tepi kanan sungai.Hasil penelitian menunjukkan bahwa secara keseluruhan, kelas zooplankton yang dapat ditemukan pada semua stasiun adalah Rotifera dan diikuti dengan protozoa. Sementara itu, kelas zooplankton yang paling jarang ditemui di Sungai Ciliwung adalah kelas Gastropoda yang hanya ditemui di stasiun Katulampa. Rotifera yang paling banyak ditemui adalah Asplachna sp. diikuti oleh Brachionus sp.. Sementara itu untuk protozoa, jenis yang paling banyak ditemui adalah Arcella sp. Parameter kualitas air yang berpengaruh terhadap kelimpahan zooplankton pada penelitian ini adalah suhu, Total Suspended Solid (TSS), dan nitrat.
PHYTOPLANKTON COMPOSITION AT CILIWUNG RIVER POST IMPLEMENTATION OF NORMALIZATION PROGRAM Rahmatia, Firsty; Sirait, Marlenny
Jurnal Ilmiah Universitas Satya Negara Indonesia Vol. 3 No. 1 (2024): November 2024 - April 2025
Publisher : Lembaga Penelitian, Publikasi, & Pengabdian kepada Masyarakat, Universitas Satya Negara Indonesia (LP3M-USNI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59408/jisni.v2i1.22

Abstract

The water quality in Ciliwung River gives a considerable influence on the survival and growth of biota in the river. The quality of the Ciliwung River is determined by the physical, chemical, and biological properties of the waters of the Ciliwung River. Water quality affects the amount, composition, species diversity, production and physiological state of aquatic organisms such as phytoplankton. Phytoplankton is one of the biological indicators that can be used to evaluate water quality. With the implementation of the river normalization program by the Provincial Government of DKI Jakarta, it is necessary to conduct research on the composition of phytoplankton in order to evaluate the quality of the waters. Research is conducted along the Ciliwung River, from upstream to downstream. The sampling location consists of 9 (Nine) stations, namely; Gadog Bridge, Gadog, katulampa, Kelapa Dua, Kalibata, Kampung Melayu, Pejompongan, K.H. Mas Mansyur, and Gong Bay. The results showed that the composition of phytoplankton in the waters of Ciliwung River Year 2017 increased compared to 2008 by Fachrul et al. The compositions were 5 divisions consisting of 45 species, 20 species of Bacillariophyceae, 15 types of Chlorophyceae, 6 types of Cyanophyceae, 3 types Euglenophyceae, and 1 type of Dinophyceae. The types of phytoplankton that dominate the waters of Ciliwung are Scenedesmus sp., Nitzschia sp., Oscillatoria sp., Spirulina sp., And Cyclotella sp.
Co-Authors Ahmed, Yasser Firsty Rahmatia Pattulloh, Pattulloh