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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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one publication added to basket [381326]

Invasion by the marine gastropod Ocinebrellus inornatus in France. II. Expansion along the Atlantic coast Martel, C.; Viard, F.; Bourguet, D.; Garcia-Meunier, P. (2004). Invasion by the marine gastropod Ocinebrellus inornatus in France. II. Expansion along the Atlantic coast. Mar. Ecol. Prog. Ser. 273: 163-172. https://dx.doi.org/10.3354/meps273163 In: Marine Ecology Progress Series. Inter-Research: Oldendorf/Luhe. ISSN 0171-8630; e-ISSN 1616-1599, meer Is gerelateerd aan: Martel, C.; Viard, F.; Bourguet, D.; Garcia-Meunier, P. (2004). Invasion by the marine gastropod Ocinebrellus inornatus in France: I. Scenario for the source of introduction. J. Exp. Mar. Biol. Ecol. 305(2): 155-170. https://dx.doi.org/10.1016/j.jembe.2003.11.011, meer

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Beschikbaar in	Auteurs
VLIZ: Open access 395679 [ download pdf ]

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Trefwoorden

Ocenebra inornata (Récluz, 1851) [WoRMS] Marien/Kust

Author keywords

Colonization, Introduced species, Direct-developing species, Population genetics, Allozyme markers, Ocinebrellus inornatus

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Auteurs		Top
Martel, C. Viard, F., meer Bourguet, D. Garcia-Meunier, P., meer

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Abstract

Dispersal ability is key to the spreading of exotic species to new areas. Herein, we focus on the expansion processes along the French Atlantic coast of an exotic marine gastropod, Ocinebrellus inornatus, first detected in the Marennes-Oléron bay in 1995. Unlike many aquatic invaders, O. inornatus lacks a swimming larval stage. This feature may reduce its ability to expand within the area of introduction unless counterbalanced by human-mediated spreading. By analyzing the genetic diversity at 7 allozyme markers, we compared the genetic diversity and structure of 9 French, 3 American and 5 Asian (native) populations. The genetic differentiation between populations within each area was low and of similar magnitude. However, a genetic isolation by coastline distances was detected in Asia only. We draw 2 main conclusions from these results. First, the settlement of new populations along the French Atlantic coast is not associated with drastic founder events. Second, expansion along the French coast is enhanced by oyster-farming activities.

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