Sökning: "Carassius carassius"
Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Carassius carassius.
1. Strategies for Monitoring of Endocrine Disrupting Chemicals in Aquatic Environment
Sammanfattning : The protein biomarker vitellogenin in fish is discussed alongside alterative strategies for monitoring of endocrine disrupting chemicals. The first objective was to find a cheap, robust and generic method for the quantification of vitellogenin. LÄS MER
2. Responses of male crucian carp (Carassius carassius) and goldfish (Carassius auratus) to hormonal sex pheromones
Sammanfattning : .... LÄS MER
3. Phenotypic plasticity and the evolution of an inducible morphological defence in crucian carp
Sammanfattning : In this thesis, I have investigated factors (cues, benefits, and costs) affecting the evolution of an inducible morphological defence in crucian carp (Carassius carassius). Inducible defences are favoured over permanent defences when prey have reliable cues to detect predators, when defences are effective but costly, and when predation pressure is variable and unpredictable, but sometimes strong. LÄS MER
4. Mechanisms of failure and survival in the anoxic fish brain : With focus on the crucian carp
Sammanfattning : Neural responses to anoxia were studied in two fish species, the rainbow trout(Oncorhynchus mykiss) and the crucian carp (Carassius carassius). The rainbow troutbrain reacted to anoxia by a massive release of excitatory amino acids and K+ into theextracellular compartment, in a fashion very much like the brain of mammals duringanoxia. LÄS MER
5. Defence on Demand : A physiological perspective on phenotypic plasticity in anti-predator traits
Sammanfattning : Almost all species face some degree of predation risk, and, hence, evolution has produced a plethora of anti-predator defences. However, anti-predator strategies require resources, and the prevailing risk of becoming prey is influenced by many factors and rarely constant across time and space. LÄS MER