Leukograms in fish from running waters

• Main Authors: Drastichova, J, Modra, H, Svobodova, Z. (Veterinarni a Farmaceuticka Univ., Brno (Czech Republic))
• Format: Conference Proceeding
• Language: Czech
• Published: Vodnany (Czech Republic) Jihoceska Univerzita 2001
• Subjects: ABRAMIS; AGE; ANALISIS HISTOCITOLOGICO; ANALYSE HISTOCYTOLOGIQUE; BARBEAU; BARBEL; BARBO; BARBUS; BODY WEIGHT; BREAM; BREME; CACHO; CHEVAINE; CHUB; COMPOSE ORGANIQUE; COMPUESTOS ORGANICOS; CONTAMINANTES; CZECH REPUBLIC; DENSIDAD DE LA POBLACION; DENSITE DE POPULATION; EDAD; ELBE; ELBE RIVER; ESTRES; GRANULOCITOS; GRANULOCYTE; GRANULOCYTES; HEAVY METALS; HISTOCYTOLOGICAL ANALYSIS; LEUCISCUS; LINFOCITOS; LYMPHOCYTE; LYMPHOCYTES; METAL LOURD; METALES PESADOS; MONOCITOS; MONOCYTE; MONOCYTES; ORGANIC COMPOUNDS; PERCA; PERCA FLUVIATILIS; PERCH; PERCHE; PESO CORPORAL; POIDS CORPOREL; POLLUANT; POLLUTANTS; POPULATION DENSITY; REPUBLICA CHECA; REPUBLIQUE TCHEQUE; RIO ELBA; SARGO; SEX; SEXE; SEXO; STRESS; SUBSTANCE TOXIQUE; SUSTANCIAS TOXICAS; TOXIC SUBSTANCES
• ISBN: 9788085887433; 8085887436

The aim of the present study was to evaluate the possibility to use differential leukocyte counts in fish as an indicator of environmental pollution. Leukograms were assessed in bream, chub, perch and barb from the Otava, Berounka, Morava and Elbe rivers (Czech Republic). In total, 168 fish specimens were examined during 1999-2000. The index of stress loading (ISL), i.e. the ratio between the percentage of lymphocytes and myeloid series cells, was determined from the leukogram values. Significant differences between the localities were found. The lowest values of ISL were measured in fish from Berounka river. This gives evidence of decreased non-specific fish resistance and correlates with an increased concentration of organic pollutants in fish from this locality. The highest ISL values were found in fish from Otava river. These results correlated with low organic pollutants concentrations in fish tissues.