Influence of environmental variables on methane related microbial activities in a tropical bio-secured zero-exchange shrimp culture system

Recently, aquaculture has emerged as the fastest growing food-producing sector accounting for nearly 50% of the world's food fish and is an activity of economic importance worldwide. Aquaculture systems are considered as one of the potential contributors to atmospheric methane (CH4)—the second...

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Autores principales:	Elaine A. Sabu, Maria Judith Gonsalves, Delcy Nazareth, Rayadurga Anantha Sreepada
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Shrimp aquaculture Litopenaeus vannamei Methane oxidation Methane production Aquaculture. Fisheries. Angling SH1-691
Acceso en línea:	https://doaj.org/article/0eb69d9532034ceab1d58f04ffa2c536
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spelling	oai:doaj.org-article:0eb69d9532034ceab1d58f04ffa2c5362021-11-26T04:34:35ZInfluence of environmental variables on methane related microbial activities in a tropical bio-secured zero-exchange shrimp culture system2352-513410.1016/j.aqrep.2021.100950https://doaj.org/article/0eb69d9532034ceab1d58f04ffa2c5362022-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352513421003677https://doaj.org/toc/2352-5134Recently, aquaculture has emerged as the fastest growing food-producing sector accounting for nearly 50% of the world's food fish and is an activity of economic importance worldwide. Aquaculture systems are considered as one of the potential contributors to atmospheric methane (CH4)—the second most important greenhouse gas (GHG). The present study was undertaken to assess the influence of environmental variables on the abundance of culturable methanotrophs (MOB), methane oxidation activity (MOA) and methane production activity (MPA) during a grow-out cycle in zero-exchange shrimp pond growing whiteleg shrimp, Litopenaeus vannamei. During the 96 days of culture (DoC), the abundance of MOB in the pond water and sediment, ranged between 3.04 × 103–1.8 × 104 CFU mL-1 and 3.36 × 105–3.17 × 106 CFU g-1, respectively. The mean potential rates of MOA and MPA in pond sediments were 392.71 ± 53.06 µmole g-1d-1 and 0.60 ± 0.30 µmole g-1d-1, respectively. The abundance of MOB and methane related activities were strongly influenced by the dissolved nitrogen species and total organic carbon (p < 0.05). In addition to providing the baseline data on microbial mediated methane activities, the study highlights the importance of methane oxidation/production processes in commercial earthen shrimp aquaculture system and the influence of environmental variables in regulating these processes. The results of this study would aid in developing environmental friendly management processes to reduce the efflux of GHG methane from shrimp aquaculture systems which is a thriving industry in the food sector.Elaine A. SabuMaria Judith GonsalvesDelcy NazarethRayadurga Anantha SreepadaElsevierarticleShrimp aquacultureLitopenaeus vannameiMethane oxidationMethane productionAquaculture. Fisheries. AnglingSH1-691ENAquaculture Reports, Vol 22, Iss , Pp 100950- (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Shrimp aquaculture Litopenaeus vannamei Methane oxidation Methane production Aquaculture. Fisheries. Angling SH1-691
spellingShingle	Shrimp aquaculture Litopenaeus vannamei Methane oxidation Methane production Aquaculture. Fisheries. Angling SH1-691 Elaine A. Sabu Maria Judith Gonsalves Delcy Nazareth Rayadurga Anantha Sreepada Influence of environmental variables on methane related microbial activities in a tropical bio-secured zero-exchange shrimp culture system
description	Recently, aquaculture has emerged as the fastest growing food-producing sector accounting for nearly 50% of the world's food fish and is an activity of economic importance worldwide. Aquaculture systems are considered as one of the potential contributors to atmospheric methane (CH4)—the second most important greenhouse gas (GHG). The present study was undertaken to assess the influence of environmental variables on the abundance of culturable methanotrophs (MOB), methane oxidation activity (MOA) and methane production activity (MPA) during a grow-out cycle in zero-exchange shrimp pond growing whiteleg shrimp, Litopenaeus vannamei. During the 96 days of culture (DoC), the abundance of MOB in the pond water and sediment, ranged between 3.04 × 103–1.8 × 104 CFU mL-1 and 3.36 × 105–3.17 × 106 CFU g-1, respectively. The mean potential rates of MOA and MPA in pond sediments were 392.71 ± 53.06 µmole g-1d-1 and 0.60 ± 0.30 µmole g-1d-1, respectively. The abundance of MOB and methane related activities were strongly influenced by the dissolved nitrogen species and total organic carbon (p < 0.05). In addition to providing the baseline data on microbial mediated methane activities, the study highlights the importance of methane oxidation/production processes in commercial earthen shrimp aquaculture system and the influence of environmental variables in regulating these processes. The results of this study would aid in developing environmental friendly management processes to reduce the efflux of GHG methane from shrimp aquaculture systems which is a thriving industry in the food sector.
format	article
author	Elaine A. Sabu Maria Judith Gonsalves Delcy Nazareth Rayadurga Anantha Sreepada
author_facet	Elaine A. Sabu Maria Judith Gonsalves Delcy Nazareth Rayadurga Anantha Sreepada
author_sort	Elaine A. Sabu
title	Influence of environmental variables on methane related microbial activities in a tropical bio-secured zero-exchange shrimp culture system
title_short	Influence of environmental variables on methane related microbial activities in a tropical bio-secured zero-exchange shrimp culture system
title_full	Influence of environmental variables on methane related microbial activities in a tropical bio-secured zero-exchange shrimp culture system
title_fullStr	Influence of environmental variables on methane related microbial activities in a tropical bio-secured zero-exchange shrimp culture system
title_full_unstemmed	Influence of environmental variables on methane related microbial activities in a tropical bio-secured zero-exchange shrimp culture system
title_sort	influence of environmental variables on methane related microbial activities in a tropical bio-secured zero-exchange shrimp culture system
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/0eb69d9532034ceab1d58f04ffa2c536
work_keys_str_mv	AT elaineasabu influenceofenvironmentalvariablesonmethanerelatedmicrobialactivitiesinatropicalbiosecuredzeroexchangeshrimpculturesystem AT mariajudithgonsalves influenceofenvironmentalvariablesonmethanerelatedmicrobialactivitiesinatropicalbiosecuredzeroexchangeshrimpculturesystem AT delcynazareth influenceofenvironmentalvariablesonmethanerelatedmicrobialactivitiesinatropicalbiosecuredzeroexchangeshrimpculturesystem AT rayadurgaananthasreepada influenceofenvironmentalvariablesonmethanerelatedmicrobialactivitiesinatropicalbiosecuredzeroexchangeshrimpculturesystem
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Influence of environmental variables on methane related microbial activities in a tropical bio-secured zero-exchange shrimp culture system

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