Microbial changes occurring at the sediment-water interface in an intensively stocked and fed fish pond

Ram, Neil M.; Zur, Ofer; Avnimelech, Yoram

doi:10.1016/0044-8486(82)90110-7

Cited by 32 publications

(15 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One of the main purposes of this study was to understand and quantify the microbial processes in the sediment and to measure the flux of metabolites between the sediment and the overlying water. This parallels previous studies which have examined various aspects of the sedimentary microbiology in freshwater fishponds (Ram et al 1982, Jana & Pate1 1984.…”

Section: Introductionsupporting

confidence: 69%

C- and N-mineralization in the sediments of earthen marine fishponds

Blackburn¹,

BAa²,

Krom³

1988

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

ABSTRACT. The rates of mineralization of organic-C and -N were measured m the sediments from 2 earthen fishponds in Eilat, Israel. The flux of the mineralized products (NH: and COz) across the sediment-water interface was also measured. It was concluded that the diffusional flux accounted for approximately 70 % of the flux; fish bioturbation was responsible for the remainder. The sediments were highly anaerobic and rates of SO:-reduction had a mean value of 70 mm01 m-2 d-l. Nitrification was absent, denitrification was insignificant and much of the sedimenting organic detritus was mineralized. This amounted to 140 mm01 C and 18 mm01 N m-' d-l, equivalent to a minimum input of > 600 g C m-2 yr-l.

show abstract

Section: Introductionsupporting

confidence: 69%

C- and N-mineralization in the sediments of earthen marine fishponds

Blackburn¹,

BAa²,

Krom³

1988

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…Aquatic microorganisms play a major role in the pond culture, particularly with respect to its productivity, nutrient cycling and water quality (Moriarty 1997). For example, Ram, Zur and Avnimelech (1982) examined the top 1 cm layer of the solid sediment surface in intensively fed and aerated fish ponds, and found that the groups of total aerobes, total anaerobes, sulphate-and iron-reducing bacteria, ammonia-and nitrite-oxidizing bacteria, acid-forming bacteria and denitrifying bacteria in this stratum displayed rapid changes in densities during the first 2-8 days following fish stocking, and subsequently reached a steady state. A thorough understanding of these variations requires knowledge of the diversity, distribution and function of microorganisms in the systems (Cheng, Zhou, Xie, Ge, Zhu & Liu 2010).…”

Section: Introductionmentioning

confidence: 99%

Characterization of microbial communities in intensive GIFT tilapia (Oreochromis niloticus) pond systems during the peak period of breeding

et al. 2015

View full text Add to dashboard Cite

Aquaculture pond is a complex ecosystem where the microorganisms in the sediments, in the animal intestinal tract and in water interact with each other to influence the water quality and health of aquatic animals. In order to understand the spatial distribution and relationship of microbial communities in intensively farmed genetically improved farmed tilapia (GIFT, Oreochromis niloticus), 454 high-throughput pyrosequencing was applied to analyse the 16S rRNA gene of bacteria in intensive GIFT ponds in Wuxi City, Jiangsu Province, China. A total of 72 747 initial sequences were obtained from four depths of pond water, from tilapia large intestines and from pond sediment. The most common phylum in all samples was Proteobacteria, Actinobacteria and Cyanobacteria were the most abundant in water, Fusobacteria and Firmicutes in the large intestine and Chloroflexi in sediment samples. The sediment microbial community structure was comparatively similar to that of the tilapia large intestine. The microbial communities from different water depths were somewhat similar, especially the three most shallow samples, although the abundance of Actinobacteria gradually decreased with increased water depth. This data offer a preliminary exploration of the response mechanisms of the bacterial communities to aquafarming and contributes to the understanding of the status of bacterial communities of tilapia pond systems during the peak period of breeding from the aspect of their spatial distributions.

show abstract

“…Bacteria consume large amounts of Martin et al, 1998 oxygen and sediments become anoxic below the surface. Ram et al (1981Ram et al ( , 1982 found that the density of aerobic and anaerobic bacteria in the pond bottom soil is two to four orders of magnitude higher than the density of these groups in the water column. Allen et al (1995) found that bacterial count and productivity in shrimp pond sediments were two orders of magnitude greater than in the water column.…”

Section: Microbial Activity In Pond Bottom Soilsmentioning

confidence: 99%

“…A significant fraction of those compounds are easily detected by their offensive odor and a few of these are toxic (Solbe, 1979). Ram et al (1981Ram et al ( , 1982 found that the number of acid-forming bacteria increases when a pond bottom becomes anaerobic. Some organic acids are toxic to plants (De Vleeschauwer et al, 1981) and to many aquatic organisms.…”

Section: Redox Reactions In the Pond Bottom Soilmentioning

confidence: 99%