| ecology of proteocephalus torulosus in the blue bream (abramis ballerus) fromthe oder river on the borders of germany and poland | during studies on the ecology of fish helminths, the tapeworm proteocephalus torulosus (batsch, 1786) was frequently found in the intestine of the blue bream (abramis ballerus) from the oder river (germany/poland). in total, 633 fish, ranging between two and 16 years old, were sampled at monthly intervals over a two year period during 1993-1995. statistically significant differences in the seasonal occurrence of the parasite in its fish host were observed. in 1993, the prevalence remained at a h ... | 1998 | 9765375 |
| chromosome studies of european cyprinid fishes: interspecific homology of leuciscine cytotaxonomic marker-the largest subtelocentric chromosome pair as revealed by cross-species painting. | leuciscine cyprinids possess a nearly invariant diploid number (2n = 50) with an extremely uniform karyotype comprising of 8 pairs of metacentric, 13-15 pairs of submetacentric and 2-4 pairs of subtelocentric (st) to acrocentric (a) chromosomes. the largest pair is characteristically an st/a element-the 'leuciscine' cytotaxonomic marker. previously, the interspecific homology of this chromosome pair could not be assessed owing to the inability to produce euchromatic or serial banding patterns. i ... | 2008 | 18709543 |
| comparative karyological analysis of four diplozoid species (monogenea, diplozoidae), gill parasites of cyprinid fishes. | the present study has revealed new data on chromosome complements of diplozoid parasites, namely diplozoon paradoxum from freshwater bream abramis brama, paradiplozoon bliccae from white bream blicca bjoerkna, paradiplozoon sapae from white-eye bream ballerus sapa, and paradiplozoon nagibinae from zope ballerus ballerus. particularly, d. paradoxum is characterized by four pairs (2n=8) of long (up to 22.1 μm) chromosomes: pairs 1, 2, and 3 are metacentric and pair 4 acrocentric. karyotypes of thr ... | 2010 | 20981442 |
| [dependence of the infestation intensity of zope abramis ballerus with dactylogyrus chranilowi bychowsky, 1931 on the level of antimicrobial effect of the host's blood serum]. | infestation of zope abramis ballerus with dactylogyrus chranilowi bychowsky, 1931 depending on the bactericidal activity of the host's blood serum was investigated. connection of the infestation intensity with the level of antimicrobial effect of the host's blood serum is demonstrated. | 2011 | 21598668 |
| patterns of brain morphology in mid-european cyprinidae (pisces, teleostei): a quantitative histological study. | the present study considers patterns of brain morphology in 14 common species of mid-european cyprinidae. sixteen areas per brain were measured on serial cryostat sections by computer-aided planimetry. the volumes of these areas were expressed as % of the total brain volume. these brain centres (ranked according to falling values of the coefficient of variation vr, of the interspecific mean) are: lobus facialis, l. vagus, central acustic area, crista cerebellaris, bulbus olfactorius, eminentia g ... | 1988 | 3418119 |
| [a kinetic study of the blood serum cholinesterase activity in the freshwater fish abramis ballerus]. | in reaction of hydrolysis of choline and thiocholine esters of carbonic acids at 25 degrees c, cholinesterase activity of the blood serum from the fish a. ballerus has been studied by modified ellman's method and potentiometric titration method. the activity is maximal in ph region 7.5-9.0 and is not inhibited by high concentration of substrates. michaelis constants and maximal rates for the enzyme reactions were determined. butyrylcholine and butyrylthiocholine were hydrolyzed with the highest ... | 1994 | 7817653 |
| morphometrics and seasonal occurrence of metacestodes of neogryporhynchus cheilancristrotus (cyclophyllidea: dilepididae) in the blue bream (abramis ballerus) from the oder river (germany/poland). | from may 1993 to april 1995, the seasonal occurrence of metacestodes of neogryporhynchus cheilancristrotus (wedl, 1855) (cyclophyllidea: dilepididae) in its second intermediate host, the blue bream abramis ballerus (l.) was studied monthly in the oder river on the borders of germany and poland. based on the parasite specimens found, detailed data on their morphometrics are presented. the metacestodes occurred in the blue bream intestine throughout the year (overall prevalence 27% and intensity 1 ... | 2000 | 11104145 |
| pleiotropic effect of thyroid hormones on gene expression in fish as exemplified from the blue bream ballerus ballerus (cyprinidae): results of transcriptomic analysis. | a pronounced pleiotropic effect of thyroid hormones on the regulation of gene expression in fish in postembryogenesis was demonstrated for the first time using larvae and juveniles of the blue bream ballerus ballerus as an example. genome-wide transcriptome sequencing (rna-seq) identified 1212 differentially expressed genes in the brain and liver of fish kept in triiodothyronine solution (0.25 ng/ml). our data show that the regulation of gene expression by thyroid hormones is widespread in natur ... | 2016 | 27193715 |
| [diplozoon nagibinae n. sp., a new diplozoon species (monogenoidea) of abramis ballerus (l.)]. | | 1965 | 14305890 |
| [characterization of the intestinal digestive glycosidases in plankton- and benthos-feeding species of the fish genus ballerus (cyprinidae)]. | the activity of hydrolases (maltase, saccharase, amylolytic activity) in the intestinal mucosa of the plankton-feeding zope ballerus ballerus and the benthos-feeding white-eye bream ballerus sapa was investigated. the temperature characteristics of maltase hydrolysis (t(opt) and e(act)) are similar in both species. the lower k(m) of maltase hydrolysis in the white-eye bream reflects a higher enzyme/substrate affinity and indicates a more effective carbohydrate hydrolysis in the benthos-versus pl ... | 2015 | 25859601 |