scholarly journals Peer Review #2 of "Longitudinal evaluation of the impact of traditional rainbow trout farming on receiving water quality in Ireland (v0.1)"

2018 ◽  
Keyword(s):  
Water Quality ◽  
Rainbow Trout ◽  
Peer Review ◽  
Longitudinal Evaluation ◽  
The Impact ◽  
Receiving Water

scholarly journals Longitudinal evaluation of the impact of traditional rainbow trout farming on receiving water quality in Ireland

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5281 ◽  
Author(s):  
Alexandre Tahar ◽  
Alan M. Kennedy ◽  
Richard D. Fitzgerald ◽  
Eoghan Clifford ◽  
Neil Rowan
Keyword(s):  
Water Quality ◽  
Rainbow Trout ◽  
Fish Farming ◽  
Independent Data ◽  
Fish Farms ◽  
Cumulative Impact ◽  
Four Seasons ◽  
River Quality ◽  
Flow Through ◽  
The Impact

In the context of future aquaculture intensification, a longitudinal ten-year evaluation of the current traditional rainbow trout production in Ireland was performed. Publically available and independent data obtained from local authorities were gathered and analysed. Inlet and outlet concentrations of parameters such as BOD5, ammonium, nitrite, dissolved oxygen and pH for four consecutive flow-through fish farms covering the four seasons over a ten-year period (2005–2015) were analysed. The objectives of the study were (i) to characterize the impact of each fish farm on water quality in function of their respective production and identify any seasonal variability, (ii) to quantify the cumulative impact of the four farms on the river quality and to check if the self-purification capacity of the river was enough to allow the river to reach back its background levels for the analysed parameters, (iii) to build a baseline study for Ireland in order to extrapolate as a dataset for expected climate change and production intensification. For most of the parameter analysed, no significant impact of the fish farming activity on water quality/river quality was observed. These results, the first ones generated in Ireland so far, will have to be completed by a survey on biodiversity and ecotoxicology and compared after production intensification and the likely future introduction of water treatment systems on the different sites.

Requirements for integrated wastewater models - driven by receiving water objectives

1998 ◽  
Vol 38 (11) ◽  
pp. 97-104 ◽  
Author(s):  
Wolfgang Rauch ◽  
Hans Aalderink ◽  
Peter Krebs ◽  
Wolfgang Schilling ◽  
Peter Vanrolleghem
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Quality Management ◽  
Water Quality Management ◽  
Oxygen Depletion ◽  
Wastewater Discharge ◽  
Micro Organisms ◽  
The Impact ◽  
Technical Measures ◽  
Receiving Water

The design of efficient technical measures for the abatement of water pollution requires that wastewater discharge regulations are driven by receiving water objectives. However, such integrated water quality management is only possible when the impact to the aquatic ecosystem can be predicted quantitatively by means of integrated wastewater models. Typically, only a few types of wastewater discharge impacts are relevant for the state of the receiving water and, consequently, the structure of the model can be kept relatively simple when focusing on one of these impacts. The procedure of problem-oriented model selection is illustrated for three typical examples of acute water pollution, that is toxicity from un-ionized ammonia, hygienic hazard from pathogenic micro-organisms and oxygen depletion.

scholarly journals Full Water Quality Monitoring of a Traditional Flow-Through Rainbow Trout Farm

Fishes ◽  
2018 ◽  
Vol 3 (3) ◽  
pp. 28 ◽  
Author(s):  
Alexandre Tahar ◽  
Alan Kennedy ◽  
Richard Fitzgerald ◽  
Eoghan Clifford ◽  
Neil Rowan
Keyword(s):  
Water Quality ◽  
Rainbow Trout ◽  
Water Treatment ◽  
Water Reuse ◽  
Water Quality Monitoring ◽  
Fish Growth ◽  
Ammonium Concentration ◽  
Fish Welfare ◽  
Flow Through ◽  
The Impact

Traditional freshwater rainbow trout farms are still popular in some European countries such as Poland, France and Ireland. These systems generally operate in flow-through configuration. The impact such production systems might have on water quality remains mostly unknown. The present study was set up to fulfil this objective of monitoring water quality on different fish farm locations in order to identify the impacts of the whole farm (comparison of farm inlet and outlet) and at pond scale in order to understand the water quality dynamics and to better understand the impact of multiple water reuse (water passes) in a given pond on water quality. In the absence of any sort of water treatment, an increase in the number of water passes was shown to create an increase in ammonium concentration along the farm. Finally, this traditional flow-through rainbow trout production system was revealed to almost be at its full carrying capacity with respect to internal water quality parameters and fish welfare. To increase fish production, some water treatment techniques (solid/liquid separation, nitrification) would have to be introduced in order to optimize the rearing water quality for fish growth and to minimize the release of pollutants in the receiving water to limit the impact on the environment.

scholarly journals Assessing the impact of swales on receiving water quality

2017 ◽  
Vol 14 (8) ◽  
pp. 839-845 ◽  
Author(s):  
D. Michael Revitt ◽  
J. Bryan Ellis ◽  
Lian Lundy
Keyword(s):  
Water Quality ◽  
The Impact ◽  
Receiving Water

scholarly journals Effect of Water Management Technology Used in Trout Culture on Water Quality in Fish Ponds

Water ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1264 ◽  
Author(s):  
Marcin Sidoruk ◽  
Ireneusz Cymes
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Rainbow Trout ◽  
Negative Impact ◽  
Fish Mortality ◽  
Fish Ponds ◽  
Fish Farms ◽  
Cascade Systems ◽  
Recirculation System ◽  
The Impact

Pond management requires that a specific fish culture is conducted while taking into account both production possibilities and profitability, as well as the impact it may have on the natural environment. This study aimed to evaluate the effect of three water management systems used in rainbow trout culture on water quality in fish ponds. It was conducted at six trout farms and differing in water management strategy. After water had flown through the fishing ponds, its quality was significantly less impaired at farms operating in the flow and cascade systems. In turn, waters discharged from farms using the recirculation system were characterized by the poorest quality and lowest values on the Water Quality Index (WQI). It was found that the flow and cascade systems can be used to maintain the water quality and give less fish mortality for trout. It has been shown that the use of a water recirculation system in rainbow trout cultures significantly affects the quality of water in fishponds and can potentially lead to suppression of fish resistance and in extreme cases, to fish death. This study will help fish farmers in choosing the optimal variant of water management, taking into account both the best fish health with the least negative impact of fish farms on the environment.

Leaching of additives from construction materials to urban storm water runoff

2011 ◽  
Vol 63 (9) ◽  
pp. 1974-1982 ◽  
Author(s):  
M. Burkhardt ◽  
S. Zuleeg ◽  
R. Vonbank ◽  
P. Schmid ◽  
S. Hean ◽  
...  
Keyword(s):  
Water Quality ◽  
Construction Materials ◽  
Weather Conditions ◽  
Quality Standard ◽  
Storm Water ◽  
Water Runoff ◽  
Organic Additives ◽  
Storm Water Runoff ◽  
The Impact ◽  
Receiving Water

Urban water management requires further clarification about pollutants in storm water. Little is known about the release of organic additives used in construction materials and the impact of these compounds to storm water runoff. We investigated sources and pathways of additives used in construction materials, i.e., biocides in facades' render as well as root protection products in bitumen membranes for rooftops. Under wet-weather conditions, the concentrations of diuron, terbutryn, carbendazim, irgarol®1051 (all from facades) and mecoprop in storm water and receiving water exceeded the predicted no-effect concentrations values and the Swiss water quality standard of 0.1 μg/L. Under laboratory conditions maximum concentrations of additives were in the range of a few milligrams and a few hundred micrograms per litre in runoff of facades and bitumen membranes. Runoff from aged materials shows approximately one to two orders of magnitude lower concentrations. Concentrations decreased also during individual runoff events. In storm water and receiving water the occurrence of additives did not follow the typical first flush model. This can be explained by the release lasting over the time of rainfall and the complexity of the drainage network. Beside the amounts used, the impact of construction materials containing hazardous additives on water quality is related clearly to the age of the buildings and the separated sewer network. The development of improved products regarding release of hazardous additives is the most efficient way of reducing the pollutant load from construction materials in storm water runoff.

The impact of peer review on professional practice.

1984 ◽  
Vol 39 (4) ◽  
pp. 406-414 ◽  
Author(s):  
Milton Theaman
Keyword(s):  
Peer Review ◽  
Professional Practice ◽  
The Impact
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