Impact of Litopenaeus vannamei bioturbation on nitrogen dynamics and benthic fluxes at the sediment–water interface in pond aquaculture

Zhong, Dasen; Wang, Fang; Dong, Shuanglin; Li, Li

doi:10.1007/s10499-014-9855-6

Cited by 17 publications

(5 citation statements)

References 30 publications

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“…Similar SOD was reported in Penaeus vannamei ponds, i.e. 24.18 to 202.69 mmol m -2 d -1 (or 0.91 to 6.46 g m -2 d -1 ) (Zhong et al, 2015). In contrast, the SOD in settlement ponds of a small-scale recirculating shrimp farm (Penaeus monodon) in rural Thailand was around 0.67 ± 0.21 g m -2 d -1 (Erler et al, 2007) which was a tenth of the values in this study.…”

Section: Accepted Manuscriptsupporting

confidence: 81%

“…The high frequency of occurrence of low DO concentration in aquaculture ponds generally and, particular in rice-shrimp ponds during the growing season, is directly related to the high rates of respiratory demand for oxygen. The major losses of oxygen in a static water pond system are due to respiration by shrimp, plankton, sediment microbes and benthic animals (Burford and Longmore, 2001;Casillas-Hernández et al, 2007;Zhong et al, 2015). However, the processes driving low oxygen concentrations in the IRSPs are not well-understood.…”

Section: A C C E P T E Dmentioning

confidence: 99%

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Factors driving low oxygen conditions in integrated rice-shrimp ponds

et al. 2019

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Integrated rice-shrimp ponds (IRSPs) are common in areas of Southeast Asia where saltwater intrudes into rice fields in the dry season, enabling rice production in the wet season, and shrimp farming in the dry season or throughout the year. Previous research has highlighted that IRSPs have periods of low dissolved oxygen concentrations which may have a critical effect on shrimp survival. To understand the causes of low dissolved oxygen, this study examined oxygen fluxes at two IRSPs in Ca Mau Province, Vietnam during a two-year period (two wet seasons and two dry seasons). Sediment oxygen demand (SOD) incubations and whole-system oxygen flux measurements were conducted and compared with a range of water and sediment parameters to explain drivers for low oxygen concentrations. A high percentage of oxygen demand at a whole pond scale was from the sediment; hence SOD drove low oxygen concentrations in the water column. SOD rates were significantly positively correlated with chlorophyll a concentrations in the water column. These findings suggested that algal production in the water column, rather than benthic algal production, or other organic loading, provided an organic carbon source driving SOD. Oxygen demand was much higher than oxygen production within the IRSPs, indicating high bacterial activity and low algal production. This study has shed new light

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Section: Accepted Manuscriptsupporting

confidence: 81%

Section: A C C E P T E Dmentioning

confidence: 99%

Factors driving low oxygen conditions in integrated rice-shrimp ponds

et al. 2019

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“…These relationships might be explained by differences in L. vannamei and C. carpio bioturbation. Some studies suggested that L. vannamei in a C. carpio polyculture pond might affect the transport and conversion of carbon in surface sediment, as L. vannamei sediment bioturbation depth was about 0 to 2 cm (Guo et al 2012, Zhong et al 2015a while that of C. carpio was about 1 to 5 cm (Zhong et al 2015b). Therefore, these species had different im pacts on the CO 2 and CH 4 fluxes, as they affected overlying water and sediment characteristics differently.…”

Section: Differences Among the 3 Polyculture Systemsmentioning

confidence: 99%

Carbon dioxide and methane fluxes across the sediment-water interface in different grass carp Ctenopharyngodon idella polyculture models

Xiong¹,

Wang²,

Guo³

et al. 2017

Aquacult. Environ. Interact.

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Benthic fluxes of carbon dioxide (CO 2 ) and methane (CH 4 ) were evaluated in grass carp Ctenopharyngodon idella (G), silver carp Hypophthalmichthys molitrix (S), and bighead carp Aristichthys nobilis (B) polyculture systems, to which topmouth culter Erythroculter ilishaeformis (T), Pacific white shrimp Litopenaeus vannamei (P), or common carp Cyprinus carpio (C) were added. These systems, GSBT, GSBP, and GSBC, respectively, were monitored over 5 mo (May to September 2014). The presence of L. vannamei and C. carpio increased CO 2 and CH 4 emissions in GSBP and GSBC, respectively. From June to August, CO 2 and CH 4 fluxes increased in the 3 systems, and in July and August these fluxes were significantly higher in GSBC than in GSBP and GSBT, and significantly higher in GSBP than in GSBT. The metabolisms of L. vannamei and C. carpio contributed to decrease dissolved oxygen, pH, and oxidation−reduction levels, and the bioturbation of the upper sediment layers caused by these species increased organic matter degradation rate, resulting in a significant increase in particulate and dissolved organic carbon in the overlying water. Our results indicate that improving feeding efficiency and reducing organic carbon accumulation on the bottom of aquaculture ponds, as well as increasing dissolved oxygen and decreasing bioturbation across the sediment−water interface during farming seasons, is likely to reduce CO 2 and CH 4 release from aquaculture pond sediment, especially in July and August.

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“…6), indicating that the CO2 diffusive gradient could at least in part govern the variations in CO2 flux among the three stages of shrimp growth. Some recent studies further suggested that L. vannamei in the aquaculture ponds could affect carbon transport and transformation in surface sediments because the depth of sediment bioturbation caused by this shrimp was up to 2 cm (Xiong et al, 2017;Zhong et al, 2015). The different intensities of bioturbation among the three shrimp growth stages might also contribute to the observed seasonal changes of CO2 fluxes across the SWI.…”

Section: Fluxes Of Co2 Across the Sediment-water Interfacementioning

confidence: 93%