Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Jurnal Segara OSEANA
Triyoni Purbonegoro
Unknown Affiliation
Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science Materials Science & Nanotechnology Other

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

Found 3 Documents
Search

 1 
Sensitivitas Nitzschia Sp Terhadap Tembaga dan Kadmium Rachma Puspitasari; Triyoni Purbonegoro
Jurnal Segara Vol 15, No 1 (2019): April
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (455.682 KB) | DOI: 10.15578/segara.v15i1.6491

Abstract

Penggunaan organisme uji yang sesuai dengan bahan yang diuji adalah faktor yang sangat penting dalam bioassay. Berbagai organisme uji tropis telah banyak digunakan di Indonesia seperti ikan, bulu babi, dan fitoplankton. Fitoplankton seperti Chaetoceros gracilis, Tetraselmis sp., Isochrysis sp., Pavlova sp., yang hidup di kolom air telah dimanfaatkan dengan baik untuk bioassay. Namun, fitoplankton bentik seperti Nitszchia sp. belum dikenal secara luas. Tulisan ini bertujuan untuk menguji potensi Nitzschia sp. sebagai biota uji sedimen. Parameter yang diteliti adalah kurva pertumbuhan dan sensitifitas terhadap kadmium dan tembaga. Hasil penelitian menunjukkan bahwa pertumbuhan Nitszchia sp. meningkat pesat pada hari keempat hingga hari keenam. Setelah hari keenam, pertumbuhannya cenderung menurun. Kepekaan terhadap toksikan diindikasikan dengan nilai IC50 (Inhibition Concentration) sebesar 0,078 mg/Luntuk tembaga dan 0,26 mg/L untuk kadmium. Kesimpulan dari penelitian ini adalah Nitszchia sp. dapat digunakan sebagai organisme uji untuk bioassay sedimen karena memenuhi persyaratan kepadatan minimum uji serta sensitif terhadap kadmium dan tembaga. Nilai LOEC dan NOEC untuk tembaga berturut-turut sebesar 0,056 dan 0,032 mg/L sedangkan untuk kadmium sebesar 0,18 dan <0,18 mg/L. Nitzschia sp. tiga kali lebih sensitif terhadap tembaga dibandingkan dengan kadmium.
FAKTOR-FAKTOR YANG MEMPENGARUHI TOKSISITAS BAHAN PENCEMAR TERHADAP ORGANISME PERAIRAN Triyoni Purbonegoro
OSEANA Vol 42 No 2 (2017)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2017.Vol.42No.2.43

Abstract

FACTORS THAT AFFECTING THE TOXICITY OF POLLUTANTS TO AQUATIC ORGANISMS. There are a large number of pollutants in aquatic environment with various characteristics and factors that can modify and affect the toxicity of pollutants in this environment. The major factors affecting pollutant toxicity include physicochemical properties of pollutants, mode of exposure, time, environmental factors, and biological factors. Moreover, organisms in an aquatic ecosystem are seldom exposed to only single pollutant, and most cases the stress of pollution on aquatic ecosystems is related to the interaction and combined effects of many chemicals. The combined effects may be synergistic or antagonistic, depending on the pollutants and the physiological condition of the organism involved.
POTENSI BIVALVIA SEBAGAI BIOINDIKATOR PENCEMARAN LOGAM DI WILAYAH PESISIR Triyoni Purbonegoro
OSEANA Vol 43 No 3 (2018)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2018.Vol.43No.3.68

Abstract

POTENTIAL OF BIVALVE AS BIOINDICATOR OF METAL POLLUTION IN THE COASTAL AREA. Bioaccumulation database using various species of marine bivalves is useful to determine which species are suitable as bioindicators in pollution monitoring. In general, metal bioaccumulation in bivalve varies in every location and influenced by the biokinetics of each species depending on the environmental condition. Increasing accumulation of one metal will enhance the accumulation of other metal in bivalve tissue. This needs to be taken into account in interpreting metal concentrations in bivalve. Oysters and mussels have the potential as bio-indicators of metals, especially Cu and Zn, while scallops are more potential as bioindicators of Cd and Zn. Meanwhile, clams has the potential as a bioindicators of Zn. Change in shape (malformation) of bivalve shells due to heavy metal accumulation also observed. The rough structure, attachment of minerals to the shell, and thickening of the shell layer are some forms of changes in bivalve shell morphology.
Co-Authors Rachma Puspitasari