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- Age and growth of megrim, Lepidorhombus boscii, Risso of the portuguese continental coastPublication . Castilho, Rita; Dinis, Maria Teresa; Erzini, KarimThe first study of age and growth of four-spotted scaldfish, more commonly known as megrim (Lepidorhombus boscii, Risso), an important (by catch ) species of the Portuguese trawl fishery from the Atlantic coast is presented. The analysis was based on data obtained from a total of 609 specimens sampled between 1985 and 1986. Otoliths were used for age determination. The Von Bertalanf~, growth parameters were estimated using the non-linear fitting method: Lt (females)=440[ 1 -e -°-14(t+ 1.32) ] and Lt= 375 [ 1 -e -°~4(t+ 1.93) ] for males. L~ and to values are significantly different. The megrim grows allometrically (slope of length-weight regressions > 3 ). Females live longer and gain weight at a faster rate than males. Differences in growth between sexes become more apparent from the second year onwards.
- Detection of skeletal abnormalities in hatchery reared Solea senegalensis (Kaup, 1858) by a whole mount double staining techniquePublication . Gavaia, Paulo J.; Dinis, Maria Teresa; Cancela, LeonorThe aim of this study was to detect skeletal malformations with a bone-cartilage double staning technique in hatchery reared soles. Wild broodstock of S. senegalensis has been adapted to captivity in our facitities spawning naturally in the normal period for this species (March-July).