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Bayed, Abdellatif; Quiniou, Francoise; Benrha, Ali; Guillou, Monique. |
The condition of three intertidal Paracentrotus lividus populations, which inhabit an area between Rabat and Casablanca (Morocco) known by its high wave energy and its substantial anthropogenic disturbances were described. The growth rate of the juvenile sea urchins in this intertidal zone was low compared with more sheltered populations. A sharp increase in the gonad index was observed between January and March at the beginning of a period of algal production, and was concomitant with increases in seawater temperature and food consumption rate. This gonad index increase was followed by a single spawning period occurring between March and June, probably triggered by the phytoplankton bloom induced by upwelling conditions. Larval development in all three... |
Tipo: Text |
Palavras-chave: Moroccan Atlantic; Growth; Population; Juvenile; Reproduction. |
Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-602.pdf |
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