2011
DOI: 10.1590/s1984-46702011000400006
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Abstract: ABSTRACT. We tested experimentally the hypothesis that prevailing locomotion/feeding strategies and body morphology may lead to more active dispersal of free-living marine nematodes, besides passive transport. Neutral Red was applied to the sediment inside cores and the red plume formed during the flood tide was divided into near, middle, and distant zones. At 0.5 m and 1 m from the stained cores, sampling nets were suspended 5 and 10 cm above the sediment-water interface. Dispersion behaviors were defined as … Show more

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Cited by 24 publications
(20 citation statements)
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“…Earlier studies have shown that nematodes are able to disperse up to metres (Gingold et al. ; Thomas and Lana ) and even kilometres (Derycke et al. ).…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Earlier studies have shown that nematodes are able to disperse up to metres (Gingold et al. ; Thomas and Lana ) and even kilometres (Derycke et al. ).…”
Section: Discussionmentioning
confidence: 99%
“…The mud volcano can thus be seen as a homogeneous population. Earlier studies have shown that nematodes are able to disperse up to metres (Gingold et al 2011;Thomas and Lana 2011) and even kilometres (Derycke et al 2007b). Active dispersal has also been observed in the deep sea (Gallucci et al 2008;Guilini et al 2011).…”
Section: Population Genetic Structure Within the H Akon Mosby Mud Volmentioning
confidence: 95%
“…Different nematode genera can also show different vertical distributions in the water column [39] as well as differential abilities to settle back to the sediment [40]. Next to hydrodynamic forces, species-specific traits such as feeding ecology [41,42], behaviour [40], or body morphology [42] influence dispersal ability of marine nematodes. Similar active dispersal abilities have been observed in the deep sea [43-45], but here nematodes are far less abundant in the water column than in shallow-water habitats.…”
Section: Reviewmentioning
confidence: 99%
“…Yet, a COI sequence analysis of 173 specimens from four locations in the Westerschelde suggested only a weak, but still significant structuring (Φ st  = 0.044, p < 0.0001; Figure 2). Although B. assimilis lives in the sediment, it can occasionally be observed in the water column [42], increasing its potential for passive dispersal. In conclusion, at small geographical scales of 50 km, population genetic structuring does not seem to depend on whether a nematode is an epiphytic or endobenthic species (but see section on suggestions for future research).…”
Section: Reviewmentioning
confidence: 99%
“…Dispersal allows organisms to escape unsuitable environmental conditions, to avoid competition and predation and to find food. The presence of nematodes in the water column is largely determined by their vertical distribution and abundance in the sediment: species that are abundant in the sediment (Eskin & Palmer 1985) or live close to the sediment-water interface (such as epigrowth feeders, which primarily rely on a photosynthesizing food source) (Commito & Tita 2002, Thomas & Lana 2011) have a higher probability of being suspended in the water column. Nevertheless, quite a number of marine nematode species show a widespread geographic distribution (Bhadury et al 2008, Derycke et al 2008b, Bik et al 2010, indicating that long-distance dispersal can occur.…”
Section: Dispersal Of Free-living Marine Nematodesmentioning
confidence: 99%