Impact of oxygen depletion on planktonic community with emphasis temperature dynamics at aquaculture scale in Blanakan, West Java

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Abstract

It is hypothesized that rise in temperature under climate change regimes can cause oxygen depletion and can reduce the diversity and population of plankton and decrease the potential food source for fish in ponds. Therefore, this paper aims to investigate the primary factors that can affect the planktonic community with emphasis on temperature rise and oxygen depletion. Sampling was conducted in Blanakan, West Java. Samples were assessed to determine levels of planktonic community and other water quality parameters. DO was monitored in situ along with pH and temperature. Based on the results, the temperature average in ponds was 31.88±1.93 °C and ranged from 29.0 to 35.0°C. The DO average was 7.63±0.59 mg/l and ranged from 7.0 to 8.5 mg/l. The rise of pond temperature affected slighltyto the DO and had reduced the DO level to the lowest level (7.0-7.2 mg/l) when temperature reached its peak at 32.5-35.0°C. The results showed that the oxygen depletion will significantly reduce the phytoplankton population (r2=0.54). However, the oxygen depletion did not affect the plankton diversity. The results revealedthe presence of 23 genera of phytoplankton and 18 genera for zooplankton in Blanakan ponds. Nitzchia and Pleurosigma were known as genera that can adapt both in the DOmin and DOmax environment (7.0-8.5 mg/l). At aquaculture scale, temperature has potential to influence oxygen level and affect planktonic community. It is recommended to provide natural shades and develop aeration systems to increase oxygen levels in ponds.

Original languageEnglish
Title of host publicationMathematics, Science, and Computer Science Education, MSCEIS 2016
Subtitle of host publicationProceedings of the 3rd International Seminar on Mathematics, Science, and Computer Science Education
EditorsEndi Suhendi, Heli Siti Halimatul Munawaroh, Topik Hidayat, Diah Kusumawaty, Ika Mustika Sari, Irma Rahma Suwarma, Asep Bayu Dani Nandiyanto, Al Jupri, Siti Aisyah
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415201
DOIs
Publication statusPublished - 30 May 2017
Event3rd International Seminar on Mathematics, Science, and Computer Science Education, MSCEIS 2016 - Bandung, Indonesia
Duration: 15 Oct 2016 → …

Publication series

NameAIP Conference Proceedings
Volume1848
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Seminar on Mathematics, Science, and Computer Science Education, MSCEIS 2016
Country/TerritoryIndonesia
CityBandung
Period15/10/16 → …

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