Description and comparative study of physico-chemical parameters of the teleost fish skin mucus
| Autor: | Marta Arizcun, María del Mar Collado-González, José Meseguer, María Ángeles Esteban, F. Guillermo Díaz Baños, Maria Cuartero, Francisco A. Guardiola, Alberto Cuesta |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
food.ingredient
Acuicultura Physiology Zoology teleosts Perciformes Bass (fish) skin mucus food Physiology (medical) Animals Grouper protein concentration Centro Oceanográfico de Murcia Sea bass osmolality Skin fish density biology Ecology Viscosity Osmolar Concentration Temperature Epinephelus marginatus Dentex dentex biology.organism_classification Mucus Sea Bream Fish culture viscosity Dicentrarchus Bass |
| Zdroj: | e-IEO. Repositorio Institucional Digital de Acceso Abierto del Instituto Español de Oceanografía instname e-IEO: Repositorio Institucional Digital de Acceso Abierto del Instituto Español de Oceanografía Instituto Español de Oceanografía |
| Popis: | The study of mucosal surfaces, and in particular the fish skin and its secreted mucus, has been of great interest recently among immunologists. Measurement of the viscosity and other physico-chemical parameters (protein concentration, pH, conductivity, redox potential, osmolality and density) of the skin mucus can help to understand its biological functions. We have used five marine species of teleost: gilthead seabream (Sparus aurata L.), European sea bass (Dicentrarchus labrax L.), shi drum (Umbrina cirrosa L.), common dentex (Dentex dentex L.) and dusky grouper (Epinephelus marginatus L.), all of them with commercial interest in the aquaculture of the Mediterranean area. Mucus showed a direct shear- and temperaturedependent viscosity, with a non-Newtonian behavior, which differed however between two groups: one with higher viscosity (D. labrax, U. cirrosa, D. dentex) and the other with lower viscosity (S. aurata, E. marginatus). In addition, there was a clear interrelation between density and osmolality, as well as between density and temperature. Taking into account that high values of viscosity should improve the barrier effect against pathogens but low values of viscosity are needed for good locomotion characteristics, our results may help elucidate the relationship between physico-chemical and biological parameters of skin mucus, and disease susceptibility. SI |
| Databáze: | OpenAIRE |
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