Resumo

BRITO MANZANO, Nancy  e  ALDANA ARANDA, Dalila. Variación estacional de lípidos en varios tejidos del cambute Strombus gigas (Mesogastropoda: Strombidae), en Quintana Roo, México. Rev. biol. trop [online]. 1998, vol.46, n.3, pp.655-660. ISSN 0034-7744.

Strombus gigas samples were collected in Banco Chinchorro, Quintana Roo, Mexico (18°47'-18°23' N; 87°14' W). Shell, body and spire lenght were measured. Fat content of gonad, digestive gland and meat of male and female conchs, was analyzed by the standard and microsoxhlet methods on a monthly basis for a year. Mean lenght for shell, body and spire were 209 ± 1 mm, 137 ±1 mm and 100 ± 1 mm, respectively. Total wet weigth was 1 826 ± 7 g. Fat content in gonad-digestive gland was 1.27-9.33 g% with a mean of 4.27 g% and in meat 0.41-5.03 g% with a mean of 2.15 g%. Fat content in female gonad-digestive gland was 1.27 g% at 8.57 g% with a mean of 4.50 g%; in male: 1.87 g% at 9.33 g% with a mean of 4.01 g%. Sexes differed (t student P < 0.05). Mean fat content in meat was 2.15 g%, (males 1.97 g%, females 2.3 g%). There was not significant sexual difference for meat fat content. There was a difference between gonad-digestive gland and meat (t student P < 0.05). However, from February to September meat lipid content exceeds the percentage recommended for human consumption by the FAO.

Palavras-chave : Strombus; lipid composition; annual cycle.