Use of Harmful Algae Presence to Assess Water Quality in Lake Ranu Grati, Indonesia

The evaluation of water quality is commonly conducted by measuring physicochemical parameters. However, to enable identification of water quality changes of aquatic ecosystems, such as lakes, requires long time series data sampling. In this study, we performed water quality assessments by utilising...

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Main Authors: Sunadji Sunadji, Mohammad Mahmudi, Evellin Dewi Lusiana, Ridwan Tobuku
Format: Article
Language:English
Published: Polish Society of Ecological Engineering (PTIE) 2022-11-01
Series:Ecological Engineering & Environmental Technology
Subjects:
Online Access:http://www.ecoeet.com/Use-of-Harmful-Algae-Presence-to-Assess-Water-Quality-in-Lake-Ranu-Grati-Indonesia,152950,0,2.html
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author Sunadji Sunadji
Mohammad Mahmudi
Evellin Dewi Lusiana
Ridwan Tobuku
author_facet Sunadji Sunadji
Mohammad Mahmudi
Evellin Dewi Lusiana
Ridwan Tobuku
author_sort Sunadji Sunadji
collection DOAJ
description The evaluation of water quality is commonly conducted by measuring physicochemical parameters. However, to enable identification of water quality changes of aquatic ecosystems, such as lakes, requires long time series data sampling. In this study, we performed water quality assessments by utilising the presence of potential harmful algae presence in Lake Ranu Grati, Indonesia. We conducted water sampling to evaluate 13 water quality parameters (in-situ and ex-situ) and identified the phytoplankton community structure of the lake at seven sampling sites from December 2018 to February 2019. To assess the water quality of the lake, we used two approaches. First, calculated the classical water quality index using the STORET method. Second, identified the potential harmful algae from the phytoplankton community structure of Lake Ranu Grati, and then determined the water quality factors related to its occurrence using canonical correspondence analysis. The results showed that water quality condition of Lake Ranu Grati was optimum except for COD, BOD and ammonia. The STORET index also classified the seven sites in Lake Ranu Grati as lightly polluted and moderately polluted. Considering the presence of potentially harmful algae from the Cyanophyta and Euglenophyta divisions, it was suggested that Sites 6 and 7 were the most polluted areas of Lake Ranu Grati, which corresponded to the high concentration of COD and BOD. This finding indicates that agricultural and aquaculture activities around the lake need to be controlled to maintain the sustainability of the water quality condition of Lake Ranu Grati.
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spelling doaj.art-8d851bd5c8a944638c7fbe87a0865b692022-12-22T03:47:42ZengPolish Society of Ecological Engineering (PTIE)Ecological Engineering & Environmental Technology2719-70502022-11-0123611812710.12912/27197050/152950152950Use of Harmful Algae Presence to Assess Water Quality in Lake Ranu Grati, IndonesiaSunadji Sunadji0https://orcid.org/0000-0002-0875-5630Mohammad Mahmudi1https://orcid.org/0000-0001-7303-5675Evellin Dewi Lusiana2https://orcid.org/0000-0001-8672-3661Ridwan Tobuku3https://orcid.org/0000-0003-4824-9940Faculty of Animal Husbandry, Marine and Fisheries, Universitas Nusa Cendana, Kupang, 85001, IndonesiaDepartment of Aquatic Resource Management, Faculty of Fisheries and Marine Science, Universitas Brawijaya, Malang, 65145, IndonesiaDepartment of Aquatic Resource Management, Faculty of Fisheries and Marine Science, Universitas Brawijaya, Malang, 65145, IndonesiaFaculty of Animal Husbandry, Marine and Fisheries, Universitas Nusa Cendana, Kupang, 85001, IndonesiaThe evaluation of water quality is commonly conducted by measuring physicochemical parameters. However, to enable identification of water quality changes of aquatic ecosystems, such as lakes, requires long time series data sampling. In this study, we performed water quality assessments by utilising the presence of potential harmful algae presence in Lake Ranu Grati, Indonesia. We conducted water sampling to evaluate 13 water quality parameters (in-situ and ex-situ) and identified the phytoplankton community structure of the lake at seven sampling sites from December 2018 to February 2019. To assess the water quality of the lake, we used two approaches. First, calculated the classical water quality index using the STORET method. Second, identified the potential harmful algae from the phytoplankton community structure of Lake Ranu Grati, and then determined the water quality factors related to its occurrence using canonical correspondence analysis. The results showed that water quality condition of Lake Ranu Grati was optimum except for COD, BOD and ammonia. The STORET index also classified the seven sites in Lake Ranu Grati as lightly polluted and moderately polluted. Considering the presence of potentially harmful algae from the Cyanophyta and Euglenophyta divisions, it was suggested that Sites 6 and 7 were the most polluted areas of Lake Ranu Grati, which corresponded to the high concentration of COD and BOD. This finding indicates that agricultural and aquaculture activities around the lake need to be controlled to maintain the sustainability of the water quality condition of Lake Ranu Grati.http://www.ecoeet.com/Use-of-Harmful-Algae-Presence-to-Assess-Water-Quality-in-Lake-Ranu-Grati-Indonesia,152950,0,2.htmlfreshwater ecosystemharmful algaephytoplanktonstoret indexwater quality
spellingShingle Sunadji Sunadji
Mohammad Mahmudi
Evellin Dewi Lusiana
Ridwan Tobuku
Use of Harmful Algae Presence to Assess Water Quality in Lake Ranu Grati, Indonesia
Ecological Engineering & Environmental Technology
freshwater ecosystem
harmful algae
phytoplankton
storet index
water quality
title Use of Harmful Algae Presence to Assess Water Quality in Lake Ranu Grati, Indonesia
title_full Use of Harmful Algae Presence to Assess Water Quality in Lake Ranu Grati, Indonesia
title_fullStr Use of Harmful Algae Presence to Assess Water Quality in Lake Ranu Grati, Indonesia
title_full_unstemmed Use of Harmful Algae Presence to Assess Water Quality in Lake Ranu Grati, Indonesia
title_short Use of Harmful Algae Presence to Assess Water Quality in Lake Ranu Grati, Indonesia
title_sort use of harmful algae presence to assess water quality in lake ranu grati indonesia
topic freshwater ecosystem
harmful algae
phytoplankton
storet index
water quality
url http://www.ecoeet.com/Use-of-Harmful-Algae-Presence-to-Assess-Water-Quality-in-Lake-Ranu-Grati-Indonesia,152950,0,2.html
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