Review of cold water pollution in the Murray-Darling Basin and the impacts on fish communities

2014 ◽  
Vol 15 (1) ◽  
pp. 71-79 ◽  
Author(s):  
Allan Lugg ◽  
Craig Copeland
Keyword(s):  
Water Pollution ◽  
Cold Water ◽  
Fish Communities ◽  
Murray Darling Basin

Dataset associated with "Can the impacts of cold-water pollution on fish be mitigated by thermal plasticity?"

UQ eSpace ◽  
2020 ◽  
Author(s):  
M. A. Parisi ◽  
R. L. Cramp ◽  
M. A. Gordos ◽  
C. E. Franklin
Keyword(s):  
Water Pollution ◽  
Cold Water ◽  
Thermal Plasticity

Effects of deep-sea bottom longlining on the Hatton Bank fish communities and benthic ecosystem, north-east Atlantic

2010 ◽  
Vol 91 (4) ◽  
pp. 939-952 ◽  
Author(s):  
P. Durán Muñoz ◽  
F.J. Murillo ◽  
M. Sayago-Gil ◽  
A. Serrano ◽  
M. Laporta ◽  
...  
Keyword(s):  
Deep Water ◽  
Deep Sea ◽  
Cold Water ◽  
Fish Communities ◽  
East Atlantic ◽  
North East ◽  
Sea Bottom ◽  
Rocky Outcrop ◽  
Area North ◽  
By Catch

The effects of deep-sea bottom longlining on fish communities and the benthic ecosystem, as well as the interactions between fishing and seabirds, were studied based on data collected from a joint collaboration between the Spanish Institute of Oceanography and a longliner, carried out on the Hatton Bank area (north-east Atlantic) in 2008. A total of 38 longline sets were distributed mainly along the rugged bottom of the rocky outcrop at depths ranging from 750 to 1500 m. Deep-water sharks and lotids were predominant in the catches contributing respectively 80.4% and 13.1% in terms of weight. Deep-water sharks were predominant in the discards. By-catch of cold-water corals and small glass sponges occurred along the western flank of the Hatton Bank, while large hexactinellids were found along the eastern flank. Longlines fished the adult fraction of vulnerable deep-water sharks and lotids. High catches per unit effort values for these species were obtained in coral areas. A combination of seabird-scaring streamer lines and other measures of preventing seabird by-catch were used. Only one fulmar was captured and it survived. Data on distribution of marine litter and derelict deep-sea gillnets are also presented.

scholarly journals Can the impacts of cold-water pollution on fish be mitigated by thermal plasticity?

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
M A Parisi ◽  
R L Cramp ◽  
M A Gordos ◽  
C E Franklin
Keyword(s):  
Water Pollution ◽  
Metabolic Rate ◽  
Water Temperature ◽  
Cold Water ◽  
Thermal Sensitivity ◽  
Exposure Period ◽  
Thermal Pollution ◽  
Locomotor Performance ◽  
Thermal Plasticity ◽  
The Impact

Abstract Increasingly, cold-water pollution (CWP) is being recognised as a significant threat to aquatic communities downstream of large, bottom-release dams. Cold water releases typically occur during summer when storage dams release unseasonably cold and anoxic hypolimnetic waters, which can decrease the temperature of downstream waters by up to 16°C. Depending on the release duration, these hypothermic conditions can persist for many months. The capacity of ectothermic species to tolerate or rapidly adjust to acute temperature changes may determine the nature and magnitude of the impact of CWP on affected species. This study assessed the impacts of an acute reduction in water temperature on the physiological function and locomotor performance of juvenile silver perch (Bidyanus bidyanus) and examined their capacity to thermally compensate for the depressive effects of low temperatures via phenotypic plasticity. Locomotor performance (Ucrit and Usprint) and energetic costs (routine and maximum metabolic rate) were measured at multiple points over a 10-week period following an abrupt 10°C drop in water temperature. We also measured the thermal sensitivity of metabolic enzymes from muscle samples taken from fish following the exposure period. Cold exposure had significant depressive effects on physiological traits, resulting in decreases in performance between 10% and 55%. Although there was partial acclimation of Ucrit (~35% increase in performance) and complete compensation of metabolic rate, this occurred late in the exposure period, meaning silver perch were unable to rapidly compensate for the depressive effects of thermal pollution. The results of this study have substantial implications for the management of cold water releases from large-scale dams and the conservation of native freshwater fish species, as this form of thermal pollution can act as a barrier to fish movement, cause reduced recruitment, ecological community shifts and disruptions to timing and success of reproduction.

Modelling the impact and potential mitigation of cold water pollution on Murray cod populations downstream of Hume Dam, Australia

2007 ◽  
Vol 23 (4) ◽  
pp. 377-389 ◽  
Author(s):  
Bradford Sherman ◽  
Charles R. Todd ◽  
John D. Koehn ◽  
Tom Ryan
Keyword(s):  
Water Pollution ◽  
Cold Water ◽  
Murray Cod ◽  
The Impact

scholarly journals Effects of suboptimal temperatures on larval and juvenile development and otolith morphology in three freshwater fishes: implications for cold water pollution in rivers

2020 ◽  
Vol 103 (12) ◽  
pp. 1527-1540
Author(s):  
Laura E. Michie ◽  
Jason D. Thiem ◽  
Jordan A. Facey ◽  
Craig A. Boys ◽  
David A. Crook ◽  
...  
Keyword(s):  
Water Pollution ◽  
Cold Water ◽  
Freshwater Fishes ◽  
Otolith Morphology ◽  
Juvenile Development

scholarly journals Fish communities associated with cold-water corals vary with depth and substratum type

2016 ◽  
Vol 114 ◽  
pp. 43-54 ◽  
Author(s):  
Rosanna J. Milligan ◽  
Gemma Spence ◽  
J. Murray Roberts ◽  
David M. Bailey
Keyword(s):  
Cold Water ◽  
Fish Communities ◽  
Substratum Type
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