Recently, a global increase in temperature has been considered with rise. Therefore, new species and diseases are getting domestic Europe. Particularly, tilapia is kept "colder" areas like European waters indoor facilities. It was examined if the lake virus (TiLV) can infect native fish. Common carp, crucian rainbow trout were chosen to be infected tilapia. While infected, other always cohabita...

Swimbladder of the crucian carp, Carassius auratus, was found to be better as a vegetalizing tissue than other tissues, such as guinea-pig bone marrow, when presumptive ectoderm of Triturus gastrulae was used as reacting tissue. Swimbladder usually induced assemblies of highly organized mesodermal tissues, such as notochord, somites and pronephric tubules, some of which were covered by mesoderm...

6 7 8 Minna Hassinen, Salla Laulaja, Vesa Paajanen, Jaakko Haverinen and Matti Vornanen 9 University of Eastern Finland, Department of Biology, P.O. Box 111, 80101 Joensuu, Finland 10 11 12 13 Short title: Thermal adaptation of cardiac potassium current in crucian carp 14 15 16 17 Address for correspondence: 18 Matti Vornanen 19 University of Eastern Finland 20 Department of Biology, P.O. box 1...

The short term micro-flowing purification system (STMFPS) has been shown to improve the flesh quality of freshwater fish. However, few studies have focused on involved underlying mechanisms. This study explored effect STMFPS market-size fish based combination metabolomics and transcriptomics methods. UPLC-QTOF/MS method was utilized screen metabolites predict possible major metabolic pathways d...

In order to determine the absolute configuration of naturally occurring alloxanthin, a HPLC analytical method for three stereoisomers 1a-c was established by using a chiral column. Two authentic samples, (3S,3'S)- and meso-stereoisomers 1b and 1c, were chemically synthesized according to the method previously developed for (3R,3'R)-alloxanthin (1a). Application of this method to various alloxan...

“The mean relative body depth of the triploid asexual Japanese crucian carp differed significantly among 13 populations (Fig. 3, Welch’s one-way ANOVA weighted for unequal variances, F12,67.08 = 26048, P < 2.2 × 10−16). The total variation in the relative body depth was 45% explained by the between-population variation and 55% by within-population variation (Kulinskaya and Staudte’s weighted co...

Generalist fish species can feed on a wide resource spectrum and across trophic levels depending availability interactions. Crucian carp (Carassius carassius) represents good candidate to investigate variation in the ecology of generalist as it be found highly variable communities its use is well documented. In this study, we explored crucian at individual population using stable isotope gut co...

The influence of increasing concentrations of copper sulphate (CuSO4.5H2O) on Crucian carp (Carassius gibelio) was investigated. The clinical signs, the morphologic changes in the spleen and gills, and the alterations in red blood cells were analyzed. The concentrations tested were respectively 0.1, 0.5, 1.0 and 2.0 mg.l-1. Various clinical symptoms were observed resulting from damaged oxygen t...

In this study, structural changes of liver and gills the crucian carp after one-month exposure to different concentrations alkylbenzene sulfonate (AS) surfactants were evaluated by pathological sections organs. The results indicated that effect AS on was mainly reflected in nucleus swelling, cell membrane rupture, blurring boundaries, appearance vacuoles cytoplasm. Meanwhile, occurs gill filame...

We first estimated the content of polycyclic aromatic hydrocarbons (PAHs) in the brain, liver, bladder, roe, and muscle of four species of edible freshwater fish from the Beijing market. The distribution characteristics of PAHs in these tissues and organs were analyzed to determine their health risks to humans. The results showed that the residual levels of wet weight and lipid-normalized weigh...