The population dynamics of pike, Esox lucius, and perch, Perca fluviatilis, in a simple predator-prey system

1992 ◽  
Vol 34 (1) ◽  
pp. 65-78 ◽  
Author(s):  
James W. Treasurer ◽  
Roger Owen ◽  
Eric Bowers
Keyword(s):  
Population Dynamics ◽  
Perca Fluviatilis ◽  
Esox Lucius ◽  
Predator Prey ◽  
Pike Esox Lucius ◽  
Prey System ◽  
Perch Perca Fluviatilis

DNA adducts and histopathological lesions in perch (Perca fluviatilis) and northern pike (Esox lucius) along a polycyclic aromatic hydrocarbon gradient on the Swedish coastline of the Baltic Sea

1998 ◽  
Vol 55 (4) ◽  
pp. 815-824 ◽  
Author(s):  
G Ericson ◽  
E Lindesjöö ◽  
L Balk
Keyword(s):  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
Dna Adducts ◽  
Perca Fluviatilis ◽  
Head Kidney ◽  
Northern Pike ◽  
Esox Lucius ◽  
Pike Esox Lucius ◽  
Perch Perca Fluviatilis ◽  
Polycyclic Aromatic

DNA adducts, histopathological abnormalities, and organosomatic indices were used to study contaminant effects on fish along a polycyclic aromatic hydrocarbon (PAH) gradient, leading away from an aluminum smelter on the Swedish Baltic coast. The level of DNA adducts, analysed using the 32P-postlabelling method, was at least 145 times higher in the liver of female perch (Perca fluviatilis) from the innermost site on the gradient, closest to the suspected point source of PAHs, than at a distant reference site. Of the DNA adducts analysed, a relatively small number accounted for a very high proportion of the total level of adducts (30-60% at the innermost site and close to 100% at the outermost site). These particular adducts could also be observed in extrahepatic tissues, such as trunk kidney and head kidney, along the entire gradient. Similar patterns of adducts were also observed in northern pike (Esox lucius). Focal hepatocellular degeneration in perch was about 15 times more extensive at the innermost site than at the next site in the gradient and absent in perch from the two outermost sites. Body size relative to age was also significantly reduced in perch from the three innermost sites compared with the outermost site.

Tolerance of Juvenile Perch Perca fluviatilis and Amur Sleeper Perccottus glenii to Predation by Pike Esox Lucius

2019 ◽  
Vol 59 (3) ◽  
pp. 382-388
Author(s):  
A. K. Smirnov ◽  
E. S. Smirnova ◽  
Yu. V. Koduhova ◽  
D. P. Karabanov
Keyword(s):  
Perca Fluviatilis ◽  
Esox Lucius ◽  
Amur Sleeper ◽  
Perccottus Glenii ◽  
Pike Esox Lucius ◽  
Perch Perca Fluviatilis

scholarly journals Photoreceptors and eyes of pikeperch Sander lucioperca , pike Esox lucius , perch Perca fluviatilis and roach Rutilus rutilus from a clear and a brown lake

2018 ◽  
Vol 95 (1) ◽  
pp. 200-213 ◽  
Author(s):  
Mirka Jokela-Määttä ◽  
Martta Viljanen ◽  
Noora Nevala ◽  
Kristian Donner ◽  
Christer Brönmark
Keyword(s):  
Perca Fluviatilis ◽  
Rutilus Rutilus ◽  
Esox Lucius ◽  
Sander Lucioperca ◽  
Roach Rutilus Rutilus ◽  
Pike Esox Lucius ◽  
Perch Perca Fluviatilis
Sign in / Sign up

Export Citation Format

Share Document