Effect of the Warm Water Discharge from a Power Station on Fish Populations in the River Trent

1980 ◽  
Vol 17 (2) ◽  
pp. 349 ◽  
Author(s):  
K. Sadler
Keyword(s):  
Water Discharge ◽  
Fish Populations ◽  
Warm Water ◽  
Power Station

The ecology of some British rivers in relation to warm water discharges from power stations

1972 ◽  
Vol 180 (1061) ◽  
pp. 407-419 ◽  
Keyword(s):  
Temperature Fluctuations ◽  
Fish Populations ◽  
Warm Water ◽  
Tubifex Tubifex ◽  
Invertebrate Fauna ◽  
Power Station ◽  
Temperature Range ◽  
Power Stations ◽  
Limnodrilus Hoffmeisteri ◽  
Natural Variations

A number of detailed studies of the effects of heated discharges from power stations on the temperature, chemistry and ecology of British rivers have been carried out since 1965. This paper deals mainly with the Rivers Severn and Trent. In the Severn, a relatively clean river, temperatures up to 28°C below Ironbridge Power Station outfalls have not affected the diversity of the invertebrate fauna. There were slight alterations in the hatching of insect nymphs which may have been attributable to temperature, though natural variations from year to year were much more obvious. Emergence of adult Ephemeroptera and Trichoptera was not affected by temperatures of 26 to 28°C. The River Trent is used for cooling by some 14 power stations. There are no obvious changes in the diversity of the invertebrate fauna which can be related to temperature, though pollution from other sources causes very marked changes. At Drakelow, in the most polluted reach, changes in the Oligochaete community were possibly attributable to temperatures below the outfall. Experiments showed that Limnodrilus hoffmeisteri had a wider temperature range for reproduction than Tubifex tubifex . Studies of fish populations at Peterborough have shown that many coarse fishes can withstand quite sudden and wide temperature fluctuations.

Freshwater mussel community response to warm water discharge in western Lake Erie

2013 ◽  
Vol 39 (3) ◽  
pp. 449-454 ◽  
Author(s):  
Nick J. Bryan ◽  
Christina V. Florence ◽  
Todd D. Crail ◽  
Daryl L. Moorhead
Keyword(s):  
Lake Erie ◽  
Water Discharge ◽  
Freshwater Mussel ◽  
Community Response ◽  
Warm Water ◽  
Western Lake ◽  
Western Lake Erie

Taxonomic structure of the zoobenthos of the Lukoml GRES cooling reservoir

2021 ◽  
Vol 66 (2) ◽  
pp. 194-204
Author(s):  
I. I. Lapuka ◽  
V. V. Vezhnavets
Keyword(s):  
Water Discharge ◽  
Taxonomic Diversity ◽  
Water Area ◽  
District Power Station ◽  
Bottom Fauna ◽  
Taxonomic Structure ◽  
Power Station ◽  
Relict Species ◽  
Macrobrachium Nipponense ◽  
Cooling Reservoir

The species composition of zoobenthos in the heated and non-heated zones of the cooling lake Lukoml State District Power Station was studied. 80 taxa of bottom animals have been registered, and two new species of chironomid larvae have been identified. The bottom fauna includes a protected relict species of Pallaseopsis qudrispinosa, which is preserved in the conditions of warming.it is listed in the Red book of Belarus and the alien species – freshwater shrimp Macrobrachium nipponense. The high taxonomic diversity indicates that the Lukoml State District Power Station operation has little impact on the bottom community throughout the lake’s water area. However, species richness is reduced locally by half in the zone of influence of heated water discharge, especially in summer. Under the influence of heating, the taxonomic structure and spatial distribution at different depths change.

Structure of River Turbulence behind Warm‐Water Discharge

1994 ◽  
Vol 120 (2) ◽  
pp. 191-208 ◽  
Author(s):  
Vladimir I. Nikora ◽  
Pawel Rowiński ◽  
Aleksander Suchodolov ◽  
Dariusz Krasuski
Keyword(s):  
Water Discharge ◽  
Warm Water

Effects of Warm Water Discharge from Sanmen Nuclear Power Plant on Filtration Behavior, Calcification Rate, and Ammonia Excretion of Razor Clam, Sinonovacula constricta: A Simulation Study

2014 ◽  
Vol 955-959 ◽  
pp. 356-359 ◽  
Author(s):  
Guang Xu Liu ◽  
Wen Yao Chen ◽  
Miao An Shu ◽  
Xin Guo Zhao ◽  
Chao Peng ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Water Discharge ◽  
Ammonia Excretion ◽  
Warm Water ◽  
Calcification Rate ◽  
Razor Clam ◽  
Increased Temperature ◽  
C 30

Warm water discharge from nuclear power plant will elevate the temperature of seawater and may subsequently have influences on important marine aquiculture bivalves. In present study, the effects of temperature elevation caused by warm water discharge on the filtration behavior, calcification rate, and ammonia excretion of a major local bivalve species, razor clam, were investigated via laboratory simulation. The results showed that the filtration rates of razor clam increased significantly with an increased temperature, which were 0.46±0.06, 0.62±0.09, and 0.85±0.08L/g·h for 28 °C, 30 °C, and 32 °C, respectively. Under the experimental temperature gradient, the pattern of calcification rates of razor clam was shown to be bell-shaped, with the highest calcification rate 2.85±0.28μmol/FWg·h at 30 °C. The ammonia excretion rates were shown to increase slightly with increased temperature, which were 0.31±0.03, 0.32±0.09, and 0.34±0.06mg/ g·h for 28 °C, 30 °C, and 32 °C, respectively. The results suggest that razor clam will increase its energy intake and metabolic rate to maintain a relatively constant growth rate under thermal stress within 4 oC range even during the summer season.

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