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Free Content Larval-to-juvenile mobility activities of a holobenthic species, Nereis diversicolor (O. F. Müller) (Polychaeta: Nereidae)—their involvement in recruitment

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To document the poorly known involvement of larval-to-juvenile behavior in substrate colonization by a holobenthic species, we studied Nereis diversicolor. During incubation, larvae and post-larvae remain under the female for at least 10 d. Emergence from the parental gallery and acquisition of burrowing behavior are simultaneous and take place when individuals reach the six setigers stage. This behavioral change is concomitant with an important morpho-anatomic event in nereids: the fusion of the first setiger to the peristomium, forming dorso-posterior tentacular cirri. Our results on mobility of young developmental stages of N. diversicolor are discussed, first, from an ethological point of view. Second, they served as a basis for an eco-ethological reflection on the influence of biotic and abiotic factors on the temporal and spatial characteristics of biotop colonization, taking into account the reproductive behavior and in situ spatial distribution of adult populations.

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Document Type: Research Article

Publication date: 1999-11-01

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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