Growth, aluminium uptake and mucous cell morphometrics of early life stages of brown trout, Salmo trutta, in low pH water

1988 ◽  
Vol 21 (2) ◽  
pp. 153-159 ◽  
Author(s):  
Helmut Segner ◽  
Roland Marthaler ◽  
Michael Linnenbach
PLoS ONE ◽  
2016 ◽  
Vol 11 (5) ◽  
pp. e0155487 ◽  
Author(s):  
Emilie Réalis-Doyelle ◽  
Alain Pasquet ◽  
Daniel De Charleroy ◽  
Pascal Fontaine ◽  
Fabrice Teletchea

Oikos ◽  
2003 ◽  
Vol 100 (1) ◽  
pp. 43-54 ◽  
Author(s):  
Franck Cattaneo ◽  
Bernard Hugueny ◽  
Nicolas Lamouroux

Chemosphere ◽  
2001 ◽  
Vol 45 (4-5) ◽  
pp. 571-579 ◽  
Author(s):  
Till Luckenbach ◽  
Rita Triebskorn ◽  
Ewald Müller ◽  
Axel Oberemm

2003 ◽  
Vol 65 (1) ◽  
pp. 39-54 ◽  
Author(s):  
Till Luckenbach ◽  
Hermann Ferling ◽  
Maike Gernhöfer ◽  
Heinz-R. Köhler ◽  
Rolf-Dieter Negele ◽  
...  

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2361 ◽  
Author(s):  
Hannah Schmieg ◽  
Janne K.Y. Burmester ◽  
Stefanie Krais ◽  
Aki S. Ruhl ◽  
Selina Tisler ◽  
...  

Whether microplastics themselves or their interactions with chemicals influence the health and development of aquatic organisms has become a matter of scientific discussion. In aquatic environments, several groups of chemicals are abundant in parallel to microplastics. The tricyclic antidepressant amitriptyline is frequently prescribed, and residues of it are regularly found in surface waters. In the present study, the influence of irregularly shaped polystyrene microplastics (<50 µm), amitriptyline, and their mixture on early life-stages of brown trout were investigated. In a first experiment, the impacts of 100, 104, and 105 particles/L were studied from the fertilization of eggs until one month after yolk-sac consumption. In a second experiment, eggs were exposed in eyed ova stages to 105, 106 particles/L, to amitriptyline (pulse-spiked, average 48 ± 33 µg/L) or to two mixtures for two months. Microplastics alone did neither influence the development of fish nor the oxidative stress level or the acetylcholinesterase activity. Solely, a slight effect on the resting behavior of fry exposed to 106 particles/L was observed. Amitriptyline exposure exerted a significant effect on development, caused elevated acetylcholinesterase activity and inhibition of two carboxylesterases. Most obvious was the severely altered swimming and resting behavior. However, effects of amitriptyline were not modulated by microplastics.


2000 ◽  
Vol 203 (14) ◽  
pp. 2229-2236 ◽  
Author(s):  
M.W. Beaumont ◽  
E.W. Taylor ◽  
P.J. Butler

Previously, the distribution of ammonia between the intracellular and extracellular compartments has been used to predict a significant depolarisation of the resting membrane potential (E(M)) of white muscle from brown trout (Salmo trutta) exposed to a sub-lethal combination of copper and low pH. However, this prediction is based upon two assumptions (i) a relatively high membrane permeability for the ammonium ion with respect to that for ammonia gas and (ii) that this is unaltered by exposure to copper and low pH. Since there is conflicting evidence in the literature of the validity of these assumptions, in the present study E(M) was directly measured in white muscle fibres of trout exposed to copper and low pH (E(M)=−52.2+/−4.9 mV) and compared with that of unexposed, control animals (E(M)=−86.5+/−2.9 mV) (means +/− s.e.m., N=6). In confirming the predicted depolarisation, these data support the hypothesis of electrophysiological impairment as a factor in the reduction in the swimming performance of trout exposed to these pollutants. In addition, the results of this study support the role of a significant permeability of the muscle membrane to NH(4)(+) in determining the distribution of ammonia in fish.


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