Ammonia removal and nitrogen preferences evaluation of indigenous Malaysian microalga Halamphora sp. on white shrimp Penaeus vannamei wastewater
Journal Title: Journal of Aquatic Research and Sustainability - Year 2024, Vol 1, Issue 2
Abstract
Ammonia is ubiquitous in aquaculture systems and its removal is important for maintaining water quality and the health of the cultured animals. Microalgae are effective at removing ammonia from water, but the effectiveness of different microalgae species may vary. In this study, indigenous Malaysian microalgae isolated from shrimp ponds were screened for their ability in removing ammonia from synthetic culture media. The most efficient microalga’s nitrogen preferences and its growth and nitrogen removal in the early and late stages of shrimp culture wastewater were explored. It was found that four microalgae species namely Halamphora sp. BpSpD2, Chaetoceros sp. BpSpD3, Chlorella sp. BpSpG3 and Desertifilum sp. BpSpC1 were able to eradicate ammonia after 14 days of cultivation. Further investigation showed that Halamphora sp. BpSpD2 was able to remove 100 % ammonia within 5 days of culture. The nitrogen preferences of Halamphora sp. BpSpD2 indicated a preference for ammonia over nitrate as evidenced by the higher growth and removal efficiency of the treatments. Nitrogen removal efficiency of over 70 % was observed in treating 4 to 12 mg L-1 of TAN and nitrate. When tested in shrimp-cultured wastewater, Halamphora sp. showed a higher growth and 100% ammonia removal efficiency in the late stage of shrimp-culture wastewater. It also effectively removed 59% to 80% of nitrogen throughout both the early and late stages of shrimp culture wastewater. The results suggested that the microalga Halamphora sp. BpSpD2 has a significant potential to treat the effluent of an aquaculture system containing high concentrations of ammonia and nitrate.
Authors and Affiliations
Nurarina Ayuni Ghazali, Nurul Aini Abdul Halim, Ninie Diana Baharuddin, Fatimah Md. Yusoff, Murni Karim, Ikhsan Natrah
Keywords
Related Articles
- EP ID EP765522
- DOI https://doi.org/10.69517/jars.2024.01.02.0003
- Views 20
- Downloads 0
Seasonal variation of aquatic flora and faunal diversity and physicochemical characteristics of Bhairab River water, Jashore, Bangladesh
Rivers play a vital role in sustaining biodiversity, livelihoods, and ecological balance across regions. This study examined the aquatic and terrestrial flora and fauna, along with physicochemical water quality parameter...
Extraction of collagen from the vitreous humor of yellowfin tuna (Thunnus albacares) by pepsin-based protein solubilization
Collagen is a protein of high nutritional value; currently obtaining collagen from fishery discards helps to alleviate the global production of waste. Therefore, the objective of this study was to extract collagen from t...
Vanishing meadows: The silent decline of Malaysia’s seagrass habitats
Seagrass meadows in Malaysia are experiencing a rapid and largely unnoticed decline, despite their critical ecological and economic importance. These underwater flowering plants provide essential services such as habitat...
A bibliometric analysis of climate change mitigation through agricultural soil carbon sequestration
A global network analysis on agricultural soil carbon sequestration to mitigate climate change is required for funders, researchers, journal editors, decision-makers and conference managers. Therefore, this study assesse...
Taxonomy in crisis: Addressing the shortage of taxonomists in a biodiversity hotspot era
In the era of biodiversity crises, where the extinction rates are accelerating at an unprecedented pace, taxonomy—the science of classification, description, and identification of organisms—stands as a critical tool for...