Microalgal diversity fosters stable biomass productivity in open ponds treating wastewater

Abstract It is established that biodiversity determines productivity of natural ecosystems globally. We have proved that abiotic factors influenced biomass productivity in engineered ecosystems i.e. high rate algal ponds (HRAPs), previously. This study demonstrates that biotic factors, particularly...

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Autores principales:	Dae-Hyun Cho, Jung-Woon Choi, Zion Kang, Byung-Hyuk Kim, Hee-Mock Oh, Hee-sik Kim, Rishiram Ramanan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bdc79878a40c4db595ddecf5ceae751b
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spelling	oai:doaj.org-article:bdc79878a40c4db595ddecf5ceae751b2021-12-02T11:40:45ZMicroalgal diversity fosters stable biomass productivity in open ponds treating wastewater10.1038/s41598-017-02139-82045-2322https://doaj.org/article/bdc79878a40c4db595ddecf5ceae751b2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02139-8https://doaj.org/toc/2045-2322Abstract It is established that biodiversity determines productivity of natural ecosystems globally. We have proved that abiotic factors influenced biomass productivity in engineered ecosystems i.e. high rate algal ponds (HRAPs), previously. This study demonstrates that biotic factors, particularly microalgal diversity, play an essential role in maintaining stable biomass productivity in HRAP treating municipal wastewater by mutualistic adaptation to environmental factors. The current study examined data from the second year of a two-year study on HRAP treating municipal wastewater. Microalgal diversity, wastewater characteristics, treatment efficiency and several environmental and meteorological factors were documented. Multivariate statistical analyses reveal that microalgae in uncontrolled HRAPs adapt to adverse environmental conditions by fostering diversity. Subsequently, five dominant microalgal strains by biovolume were isolated, enriched, and optimum conditions for high biomass productivity were ascertained. These laboratory experiments revealed that different microalgal strains dominate in different conditions and a consortium of these diverse taxa help in sustaining the algae community from environmental and predatory pressures. Diversity, niche or seasonal partitioning and mutualistic growth are pertinent in microalgal cultivation or wastewater treatment. Therefore, enrichment of selective species would deprive the collective adaptive ability of the consortium and encourage system vulnerability especially in wastewater treatment.Dae-Hyun ChoJung-Woon ChoiZion KangByung-Hyuk KimHee-Mock OhHee-sik KimRishiram RamananNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dae-Hyun Cho Jung-Woon Choi Zion Kang Byung-Hyuk Kim Hee-Mock Oh Hee-sik Kim Rishiram Ramanan Microalgal diversity fosters stable biomass productivity in open ponds treating wastewater
description	Abstract It is established that biodiversity determines productivity of natural ecosystems globally. We have proved that abiotic factors influenced biomass productivity in engineered ecosystems i.e. high rate algal ponds (HRAPs), previously. This study demonstrates that biotic factors, particularly microalgal diversity, play an essential role in maintaining stable biomass productivity in HRAP treating municipal wastewater by mutualistic adaptation to environmental factors. The current study examined data from the second year of a two-year study on HRAP treating municipal wastewater. Microalgal diversity, wastewater characteristics, treatment efficiency and several environmental and meteorological factors were documented. Multivariate statistical analyses reveal that microalgae in uncontrolled HRAPs adapt to adverse environmental conditions by fostering diversity. Subsequently, five dominant microalgal strains by biovolume were isolated, enriched, and optimum conditions for high biomass productivity were ascertained. These laboratory experiments revealed that different microalgal strains dominate in different conditions and a consortium of these diverse taxa help in sustaining the algae community from environmental and predatory pressures. Diversity, niche or seasonal partitioning and mutualistic growth are pertinent in microalgal cultivation or wastewater treatment. Therefore, enrichment of selective species would deprive the collective adaptive ability of the consortium and encourage system vulnerability especially in wastewater treatment.
format	article
author	Dae-Hyun Cho Jung-Woon Choi Zion Kang Byung-Hyuk Kim Hee-Mock Oh Hee-sik Kim Rishiram Ramanan
author_facet	Dae-Hyun Cho Jung-Woon Choi Zion Kang Byung-Hyuk Kim Hee-Mock Oh Hee-sik Kim Rishiram Ramanan
author_sort	Dae-Hyun Cho
title	Microalgal diversity fosters stable biomass productivity in open ponds treating wastewater
title_short	Microalgal diversity fosters stable biomass productivity in open ponds treating wastewater
title_full	Microalgal diversity fosters stable biomass productivity in open ponds treating wastewater
title_fullStr	Microalgal diversity fosters stable biomass productivity in open ponds treating wastewater
title_full_unstemmed	Microalgal diversity fosters stable biomass productivity in open ponds treating wastewater
title_sort	microalgal diversity fosters stable biomass productivity in open ponds treating wastewater
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/bdc79878a40c4db595ddecf5ceae751b
work_keys_str_mv	AT daehyuncho microalgaldiversityfostersstablebiomassproductivityinopenpondstreatingwastewater AT jungwoonchoi microalgaldiversityfostersstablebiomassproductivityinopenpondstreatingwastewater AT zionkang microalgaldiversityfostersstablebiomassproductivityinopenpondstreatingwastewater AT byunghyukkim microalgaldiversityfostersstablebiomassproductivityinopenpondstreatingwastewater AT heemockoh microalgaldiversityfostersstablebiomassproductivityinopenpondstreatingwastewater AT heesikkim microalgaldiversityfostersstablebiomassproductivityinopenpondstreatingwastewater AT rishiramramanan microalgaldiversityfostersstablebiomassproductivityinopenpondstreatingwastewater
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Microalgal diversity fosters stable biomass productivity in open ponds treating wastewater

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