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 | | It has been estimated that there are 1.5 x lo 6 hectares of estuarine waters and 12,555 km 2 of aquatic surface within the 125 coastal lagoons in the Mexican coasts. |
 | | In the Ostreidae family, a closely parental relation among species of the Genus Crassostrea, has been corroborated, it is based on anatomical, physiological and cytogenetic features (Nelson, 1938; Loosanoff and Nomejko, 1951; Menzel, 1968a, b; Ahmed, 1967; Rodríguez-Romero et al., 1979a, b). |
 | | Biochemistry techniques in the study of phylogeny and taxonomy of plants and animals are strongly used at present. |
| biblioweb.dgsca.unam.mx /cienciasdelmar/instituto/1987-1/articulo266.html (2201 words) |
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