Physiological performance of common carp (Cyprinus carpio, L., 1758) exposed to a sublethal copper/zinc/cadmium mixture
| Autor: | Bozidar Raskovic, G. De Boeck, G. Castaldo, Essie M. Rodgers, M. Pillet, Vesna Poleksić, Ronny Blust, Lieven Bervoets |
|---|---|
| Přispěvatelé: | PILLET, Marion |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Gills
Gill [SDE] Environmental Sciences Carps Physiology Health Toxicology and Mutagenesis chemistry.chemical_element Zinc 010501 environmental sciences Hematocrit Toxicology 01 natural sciences Biochemistry Cyprinus 03 medical and health sciences Common carp Animal science Stress Physiological medicine Animals 14. Life underwater Biology 030304 developmental biology 0105 earth and related environmental sciences 0303 health sciences Cadmium medicine.diagnostic_test biology Chemistry Muscles Pharmacology. Therapy Temperature Cell Biology General Medicine biology.organism_classification Bioaccumulation Human medicine Anaerobic exercise Copper Water Pollutants Chemical |
| Zdroj: | Comparative biochemistry and physiology : C : toxicology & pharmacology |
| ISSN: | 1532-0456 |
| Popis: | In a natural ecosystem, fish are subjected to a multitude of variable environmental factors. It is important to analyze the impact of combined factors to obtain a realistic understanding of the mixed stress occurring in nature. In this study, the physiological performance of juvenile common carp (Cyprinus carpio) exposed for one week to an environmentally relevant metal mixture (4.8 mu g/L of copper; 2.9 mu g/L of cadmium and 206.8 mu g/L of zinc) and to two temperatures (10 degrees C and 20 degrees C), were evaluated. After 1, 3 and 7 days, standard (SMR) and maximum metabolic rate (MMR) were measured and aerobic scope (AS) was calculated. In addition, hematocrit, muscle lactate, histology of the gills and metal accumulation in gills were measured. While SMR, MMR and AS were elevated at the higher temperature, the metal mixture did not have a strong effect on these parameters. At 20 degrees C, SMR transiently increased, but no significant changes were observed for MMR and AS. During metal exposure, hematocrit levels were elevated in the 20 degrees C group. The bioaccumulation of Cd in the gills reflected the increased metabolic rate at the higher temperature, with more accumulation at 20 degrees C than at 10 degrees C. Anaerobic metabolism was not increased, which corresponds with the lack of significant histopathological damage in the gill tissue. These results show that common carp handled these metal exposures well, although increased temperature led to higher Cd accumulation and necessitated increased hematocrit levels to maintain aerobic performance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect