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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.

Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.

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one publication added to basket [57443]

Differences in spatial structures between juveniles and adults of the gastropod Hydrobia ulvae on an intertidal mudflat (Marennes-Oléron Bay, France) potentially affect estimates of local demographic processes Haubois, A.-G.; Guarini, J.-M.; Richard, P.; Hemon, A.; Arotcharen, E.; Blanchard, G.F. (2004). Differences in spatial structures between juveniles and adults of the gastropod Hydrobia ulvae on an intertidal mudflat (Marennes-Oléron Bay, France) potentially affect estimates of local demographic processes. J. Sea Res. 51(1): 63-68. http://dx.doi.org/10.1016/j.seares.2003.02.001 In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414, meer

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Beschikbaar in	Auteurs
VLIZ: Open access 55287 [ download pdf ]

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Trefwoorden

Developmental stages > Adults Developmental stages > Juveniles Environments > Aquatic environment > Marine environment > Intertidal environment Population characteristics > Population structure Population dynamics Sedimentary structures > Mud flats Spatial variations Hydrobia ulvae (Pennant, 1777) [WoRMS] ANE, France, Poitou-Charentes, Marennes-Oleron Bay [Marine Regions] Marien/Kust

Author keywords

spatial structure; Hydrobia ulvae; gastropod; population structure;large-scale; intertidal mudflat

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Auteurs		Top
Haubois, A.-G. Guarini, J.-M. Richard, P.	Hemon, A. Arotcharen, E. Blanchard, G.F., meer

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Abstract

Spatial structures of juvenile and adult cohorts of the gastropod Hydrobia ulvae were investigated over a surface area of several km² in an intertidal mudflat at the end of the recruitment period. Three cohorts (average shell lengths of 3.9 ± 0.89 mm, 1.8 ± 0.43 mm and 1.1 ± 0.18 mm for cohorts I, II and III, respectively) were identified by a statistical analysis and their spatial distributions were characterised. Cohorts of juveniles (cohorts II and III) showed a patchy distribution pattern, whereas the cohort of adults (cohort I) was homogeneously distributed over the study area. These marked differences in spatial distribution of cohorts are likely to have a strong effect on estimates of local demographic processes, and hence of population dynamics.

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