Consulta: subjectFacets:"Fin damage"
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Effects of temperature, stocking density and farming conditions on fin damage in European sea bass (Dicentrarchus labrax)
Provedor de dados: 5
Autores: Person, Jeannine; Le Bayon, Nicolas.
This paper presents a non invasive, rapid and reliable way to quantitatively assess fin erosion in sea bass (Dicentrarchus labrax). The method is based on a visual assessment of fin profile and area loss of all fins except the anterior dorsal, on a scale from 0 to 4 in comparison with a perfect fin. The effects of stocking density (SD) and temperature on fin damage were investigated under experimental conditions (100-250 g fish). Over a 4-month period, mean erosion index (mean erosion level of all fins) was 10 times higher at 120 than at 20 kg m(-3), where most fins were undamaged. Damage was also dependent on time and oxygen concentration (35% lower at 53% O-2 saturation than at 105%). Fin condition was also affected by temperature: mean erosion index was...
Tipo: Text
Palavras-chave: Rearing systems; Stocking density; Temperature; Welfare; Fin damage; Sea bass.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6873.pdf