Browsing by Author "Morton, Brian"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
- Illustrated checklist of the infralittoral molluscs off Vila Franca do CampoPublication . Martins, António M. de Frias; Borges, José P.; Ávila, Sérgio P.; Costa, Ana C.; Madeira, Patrícia; Morton, BrianA list of the molluscan species dredged during the 3rd International Workshop of Malacology and Marine Biology is presented. Positive identification has not been possible for a number of taxa. However, almost all species are illustrated so as to provide a practical guide to the species which may occur as beach drift and others which naturally range up into the intertidal. The distribution of the species at the various collecting stations is also presented as a table organized by depth, and identifying where specimens were collected alive or, in the case of bivalves, with both valves attached.
- Population genetics of Tapes decussatus in the Lagoa de Santo Cristo, São Jorge : Preliminary results.Publication . Backeljau, Thierry; Brito, Carlos P.; Rodrigues, Armindo; Morton, Brian; Verhagen, Ron; Willems, T.; Winnepennix, BrigittaThe Lagoa de Santo Cristo in São Jorge is the only place in the Azores where the venerid bivalve Tapes decussatus (Linnaeus, 1758) forms a well established and stable population. This is in itself already a remarkable situation, for the geographically nearest populations of this species live, as far as we know, along the Atlantic coasts of Portugal and Morocco. Thus the Azorean stock is separated from its neighbors by an oceanic gap of more than 1500Km. Another important characteristic of the Azorean Tapes population is the constant human pressure under which it survives. Indeed, Tapes is considered as a popular food item for human consumption and it has therefore been intensively fished in the Lagoa de Santo Cristo, even though in the last years several measures have been taken to regulate the Tapes fisheries.