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Projeto de investigação
GERAÇÃO DE MALHAS HIERÁRQUICAS DE ELEMENTOS FINITOS POR MODELAGEM DE SÓLIDOS
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Osteological development and abnormalities of the vertebral column and caudal skeleton in larval and juvenile stages of hatchery-reared Senegal sole (Solea senegalensis)
Publication . Gavaia, Paulo J.; Dinis, Maria Teresa; Cancela, Leonor
The Senegal sole is a species recently adapted to aquaculture for which little information on larval
development is available. This study was designed to describe normal skeletal development and the
occurrence of skeletal malformations in Senegal sole reared in captivity. Eggs were collected from
natural spawning, incubated until hatching and larvae reared to the juvenile stage in a closed
recirculating system. Samples were collected throughout development at regular intervals from
hatching to fully formed juveniles. Specimens were stained with alcian blue and alizarin red and
observed for skeletal development and detection of anomalies. A high number of malformations
were detected, both in the caudal complex and the vertebral column. About 44% of the individuals
observed showed at least one malformation and the highest occurrence of deformities was observed
in the caudal region and in the vertebral column. Accordingly, 28% of the total deformities identified
in this study were detected at those sites and in adjacent arches and spines. The causes were not
identified in this study, but the high incidence of malformations may reflect culture problems due to
rearing and/or feeding conditions that affect skeletal development.
Osteological development and abnormalities of the vertebral column and caudal skeleton in larval and juvenile stages of hatchery reared solea senegalensis (kaup)
Publication . Gavaia, Paulo J.; Dinis, Maria Teresa; Cancela, Leonor
The Senegal sole is a species recently adapted to aquaculture for which little information on larval
development is available. This study was designed to describe normal skeletal development and the
occurrence of skeletal malformations in Senegal sole reared in captivity. Eggs were collected from
natural spawning, incubated until hatching and larvae reared to the juvenile stage in a closed
recirculating system. Samples were collected throughout development at regular intervals from
hatching to fully formed juveniles. Specimens were stained with alcian blue and alizarin red and
observed for skeletal development and detection of anomalies. A high number of malformations
were detected, both in the caudal complex and the vertebral column. About 44% of the individuals
observed showed at least one malformation and the highest occurrence of deformities was observed
in the caudal region and in the vertebral column. Accordingly, 28% of the total deformities identified
in this study were detected at those sites and in adjacent arches and spines. The causes were not
identified in this study, but the high incidence of malformations may reflect culture problems due to
rearing and/or feeding conditions that affect skeletal development.
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Entidade financiadora
Fundação para a Ciência e a Tecnologia
Programa de financiamento
PRAXIS XXI
Número da atribuição
PRAXIS XXI/BD/3469/94