Effects of manuring rate on ecology and fish performance in polyculture ponds

Milstein, Ana; Alkon, A.; Avnimelech, Yoram; Kochba, Malka; Hulata, Gideon; Schroeder, Gerald L.

doi:10.1016/0044-8486(91)90144-v

Cited by 15 publications

(6 citation statements)

References 7 publications

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“…Actually, common carp is an omnivorous fish (Merla, 1969;Chapman and Fernando, 1994), feeding on everything available in the pond but mainly on artificial feed, zooplankton and benthic organisms and detritus (Hepher and Pruginin, 1981;Man and Hodgkiss, 1981;Milstein et al, 1991;Liang et al, 1999). In the present study, it was shown that in non-fed ponds, common carp preferred benthic macroinvertebrate, followed by zooplankton and phytoplankton.…”

Section: Effect On Gut Contentmentioning

confidence: 66%

Growth, production and food preference of rohu Labeo rohita (H.) in monoculture and in polyculture with common carp Cyprinus carpio (L.) under fed and non-fed ponds

et al. 2006

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Section: Effect On Gut Contentmentioning

confidence: 66%

Growth, production and food preference of rohu Labeo rohita (H.) in monoculture and in polyculture with common carp Cyprinus carpio (L.) under fed and non-fed ponds

et al. 2006

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“…In the unfertilised pond, the maximum chlorophyll-a concentration reached 7.96 µg/l, implying that the ponds had some nutrients to support phytoplankton growth. The amount of chicken manure added (3 litres/180 m 2 , every two days), equivalent to 83 kg dry matter/ha/day is higher than the standard amount of 50 kg dry matter/ha/ day, used at Station Dor, Israel (Milstein et al, 1991;. Yet, this did not seem to have a great effect in terms of increased nutrients.…”

Section: Dynamics Of Phytoplankton and Zooplanktonmentioning

confidence: 94%

Assessment of Types and Abundance of Live Food for Fish Farming in Makoba Earthen Ponds, Zanzibar, Tanzania

Kyewalyanga¹

2004

West Ind. Oc. J Mar. Sci.

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Abstract-Surveys of naturally-occurring live food for fish in Makoba earthen ponds, Zanzibar were conducted from November 2001 to August 2002. This involved identification of dominant plankton in the water column as well as the composition of algal mats. The effect of nutrients on the composition and abundance of the organisms was also assessed. Protozoa were found to be the dominant zooplankton in the water column, followed by rotifers. The most abundant phytoplankton genera were Prorocentrum (13.4%), followed by Coscinodiscus (10.4%) and Diplopsalopsis (7.5%), while the benthic algal mats were dominated by cyanobacteria, mostly Spirulina (22%) and Oscillatoria (18.4%).To complement the surveys, a time-series experiment was conducted for 21 consecutive days to assess the dynamics of plankton in earthen ponds and simulation containers, using a fertilisation rate of 83 kg dry matter/ha/day. Protozoa were the most dominant zooplankton in the earthen ponds. Fertilisation with chicken manure was effective in increasing the number of rotifers in simulation containers, but not in the earthen ponds; this was probably because, unlike the earthen ponds, the simulation containers were sheltered from external influences such as rain, flooding by tide water, etc. The phytoplankton genera Pyramimonas (16.7%), Biddulphia and Microcystis (8.3%) dominated the fertilised ponds. Chlorophyll-a concentration ranged from 1.8 to 16.9 mg/l, whereas soluble reactive phosphorous (SRP) and ammonia-N reached maximum concentrations of 1.4 µg-at.P/l and 9.7 µg-at.N/l respectively. Overall, salinity and fertilisation played a major role in controlling the abundance of live/natural food in the system.

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“…Concurrently, the inflow DO concentration and chlorophyll-a content increased from 3.5 to 12.8 mg · L -1 , Water quality in carp pond outflows 227 and from 10.1 to 173 mg · L -1 , respectively in pond outlet. The only exception in pH dynamics was at VRK, where pH was lower at the outlet, though the difference was negligible (<1 percentage point) and was probably associated with increased respiration of the pond ecosystem (Milstein et al 1991) in summer. Trophic potential was lowered at pond outlets, which denotes nutrient retention by the pond, a fact already indicated by the largely significant decreases in nutrient concentration in outflow waters (see Table 4).…”

Section: Pondmentioning

confidence: 99%

Effects of Semi-Intensive Carp Pond Farming on Discharged Water Quality

Všetičková¹,

Adámek²,

Rozkošný³

et al. 2012

Acta Icth et Piscat

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Všetičková L., Adámek Z., Rozkošný M., Sedláček P. 2012. Effects of semi-intensive carp pond farming on discharged water quality. Acta Ichthyol. Piscat. 42 (3): 223-231.Background. Fish pond management can substantially modify the hydrological regime and ecological quality of receiving waters (usually rivers, canals, and ponds downstream in an interconnected system) with potentially positive or negative impacts on watershed functioning. To evaluate these effects with respect to carp pond management, the environmental impacts of semi-intensive farming on discharged water quality were monitored at four differently managed carp ponds, differing in trophic status (two eutrophic and two hypertrophic ponds). Materials and methods. Fundamental determinants of pond inflow and outflow water quality were monitored monthly from April to October 2009. Water temperature, pH, and dissolved oxygen concentration and saturation were measured in situ whilst hydrochemical and microbiological parameters were assessed in the laboratory.Results. Compared to the inflow water, in the effluents there was a significant decline in numbers of bacterial loading indicators (Escherichia coli, enterococci, faecal coliform and mesophilic bacteria) in the outflow water. In ponds with the poor quality inflow water (downstream of water treatment plant discharges), a significant decrease was also registered in nutrients (N-NH 4 , N-NO 3 , total nitrogen, P-PO 4 , and total phosphorus) and organic loads? (five-day biological oxygen demand, chemical oxygen demand) of pond effluents. At the pond supplied with good quality river water, however, the same determinants showed that effluent water quality worsened significantly. Total organic carbon and suspended solids increased in effluents of ponds with high fish biomass stocked.Conclusion. The results demonstrate that, during the growing season, properly managed carp ponds represent ecosystems with high self-cleaning ability. They may play an important role in the nutrient balance, storage and trapping in agricultural landscape with high population density.

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Effects of manuring rate on ecology and fish performance in polyculture ponds

Cited by 15 publications

References 7 publications

Growth, production and food preference of rohu Labeo rohita (H.) in monoculture and in polyculture with common carp Cyprinus carpio (L.) under fed and non-fed ponds

Growth, production and food preference of rohu Labeo rohita (H.) in monoculture and in polyculture with common carp Cyprinus carpio (L.) under fed and non-fed ponds

Assessment of Types and Abundance of Live Food for Fish Farming in Makoba Earthen Ponds, Zanzibar, Tanzania

Effects of Semi-Intensive Carp Pond Farming on Discharged Water Quality

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