In this study the relationship between life-history, sexuality and fitness of three species of Ophryotrocha (Polychaeta, Dorvilleidae) with three different sexual strategies (gonochorism, simultaneous hermaphroditism and protandrous hermaphroditism) has been analyzed. Survivorship and fecundity data were collected weekly and used to define the relative contribution of these two ecological parameters to differences in the population growth rate. Results indicate that gonochorism is the most advantageous condition for fitness and demographic growth.
Sessualità e fitness nel genere Ophryotrocha (Polychaeta): confronto tra specie gonocoriche ed ermafrodite / MASSAMBA N'SIALA, Gloria; Prevedelli, Daniela; Simonini, Roberto. - In: BIOLOGIA MARINA MEDITERRANEA. - ISSN 1123-4245. - STAMPA. - 13(1):(2006), pp. 1104-1108.
Sessualità e fitness nel genere Ophryotrocha (Polychaeta): confronto tra specie gonocoriche ed ermafrodite.
MASSAMBA N'SIALA, Gloria;PREVEDELLI, Daniela;SIMONINI, Roberto
2006
Abstract
In this study the relationship between life-history, sexuality and fitness of three species of Ophryotrocha (Polychaeta, Dorvilleidae) with three different sexual strategies (gonochorism, simultaneous hermaphroditism and protandrous hermaphroditism) has been analyzed. Survivorship and fecundity data were collected weekly and used to define the relative contribution of these two ecological parameters to differences in the population growth rate. Results indicate that gonochorism is the most advantageous condition for fitness and demographic growth.
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