Cycle de développement, croissance, effectifs, biomasse et production de <i>Bithynia tentaculata</i> L. (Gastropoda : Prosobranchia) dans le Saint-Laurent (Québec)

Vincent, B.; Vaillancourt, G.; Harvey, MK

doi:10.1139/z81-176

Cited by 21 publications

(6 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…From the present study, G. vertiginosa has been shown to be a hardy species with a high growth rate (88 days to 3.5 mm) compared with Bithynia graeca, an annual species that takes 210 days to grow to 3.5 mm (Eleutheriadis and Lazaridou-Dimitriadou 2001). The larger B. tentaculata can live up to 51 months but takes a full 2 years to reach sexual maturity (Vincent et al 1981;Brendelberger 1995).…”

Section: Discussionmentioning

confidence: 58%

Untitled

Koch¹

2004

Molluscan Res.

View full text Add to dashboard Cite

Aspects of the reproduction and population structure of Gabbia vertiginosa (Bithyniidae) in the New England Tablelands, New South Wales, Australia, are described. The pattern of embryo growth from encapsulation in the pallial oviduct, deposition of fully formed embryonic snails in the habitat, to sexual maturity in the adult snail are examined. A three-year population study has shown the reproductive period of G. vertiginosa to commence in December and end in June/July with the possibility of three reproductive events per season.

show abstract

Section: Discussionmentioning

confidence: 58%

Untitled

Koch¹

2004

Molluscan Res.

View full text Add to dashboard Cite

show abstract

“…In 1984, there was an increase in species diversity on the two macrophytes as a result of the presence of four new species, which were of low relative abundance except for P. exacuous (Table 1) . Lawrence River (Vincent et al, 1981 ;Vincent & Letourneau, 1985). limosa .…”

Section: Discussionmentioning

confidence: 99%

Factors affecting the structure of epiphytic gastropod communities in the St. Lawrence River (Quebec, Canada)

1991

Self Cite

View full text Add to dashboard Cite

A study of epiphytic gastropods associated with two submerged macrophytes (Myriophyllum spicatum and Vallisneria americana) was conducted at a soft and at a hard water site in the St . Lawrence River during two non-consecutive years in order to compare effects of macrophyte species and biomass, site and year in gastropod community structure . There was no effect of macrophyte species on total gastropod abundance nor on gastropod diversity, and few gastropod species showed a marked preference for either macrophyte species . Inter-site and inter-annual variations in diversity, total gastropod abundance and gastropod community structure were greater than variations among macrophytes . However, analysis of variations of epiphytic gastropod communities in one of the two sites shows that abiotic factors are important in explaining epiphytic gastropod distribution . Our results and results of other studies on gastropod population dynamics in the St . Lawrence River indicate that intra-and interspecific competition between gastropods is important on macrophytes and that they must be carefully considered in order to understand epiphytic community structure and population dynamics .

show abstract

“…7). Ce d6calage peut est attribu6 au rchauffement hatif lors du printemps 1979: c'est ce que confirment les tudes faites meme epoque sur la dynamique de Limnodrilus hoffmeisteri (McMurray et al, 1982), Bithynia tentaculata (Vincent et al, 1981a) et Pisidium amnicum (Vincent, 1981b). Mais ces 6tudes sur la dynamique de populations montrent aussi qu'un tel venement a des repercussions moyen et meme a long terme, en particulier chez les deux premieres especes et il est fort possible que cette 'memoire' constat6e au niveau des populations existe aussi au niveau des peuplements; seuls les rsultats d'une tude a long terme actuellement en cours et identique celle effectu6e sur B. tentaculata (Vincent & Harvey, 1985) pourraient permettre de verifier ce point.…”

Section: Discussionunclassified

“…C'est en particulier le cas pour les variations a court terme (mensuelles) dans des milieux tels que le Saint-Laurent o la rigueur du climat rend difficile l'acquisition de donnees pendant plus de la moiti6 de l'ann6e, de la prise des glaces a la fin de la debacle; c'est pourtant dans de ces milieux que de telles tudes semblent les plus int6ressants. De telles donn6es, couplees plusieurs tudes de dynamique de populations (McMurray et al, 1982;Vincent & Lafontaine, 1984;Vincent et al, 1981a, b) et une tude spatiale (Vincent, 1979) ont cependant pu tre obtenues pour la zone littorale du Saint-Laurent et elles seront present6es ici. Cette zone littorale presente l'interet d'etre tres riche, d'occuper de grandes superficies mais aussi d'etre la plus exposee h l'ensemble des principales perturbations affectant ce cours d'eau.…”

Section: Introductionunclassified

Variations mensuelles de la structure de communautés benthiques littorales d'eau douce en climat froid

Vincent

1986

Hydrobiologia

Self Cite

View full text Add to dashboard Cite

Monthly variations of macrobenthic communities were studied in three sites and during 13 months in the littoral zone of the St-Lawrence River (Qu6bec) where there are steep seasonal gradients of temperature and formation of an ice-foot during the long hivernal period. There is a good spatial distinction between the three benthic communities for all the year, except with the diversity index. Our results confirm the principal conclusions of precedent spatial and/or seasonal studies concerning means and temporal variability of uni-and multidimensional descriptors of community structure. Principal temporal discontinuities are observed during spring and are mainly explained by reproduction of dominant species, by migration of Gastropods between macrophytes and sediments and by emergence of Chironomids. During the six months of the hivernal period, there is a regular diminution of spatial heterogeneity in the littoral zone, temporal variations are weak and ice-foot do not affect community profiles. However, differences between thermal regime of the two years explain important variations at the community and at the population level. This inter-annual variations of the communities organisation are probably slowly compensated by interspecific competition as they were slowly compensated by intra-and interspecific competition at the population level.

show abstract

Cycle de développement, croissance, effectifs, biomasse et production de Bithynia tentaculata L. (Gastropoda : Prosobranchia) dans le Saint-Laurent (Québec)

Cited by 21 publications

References 13 publications

Untitled

Untitled

Factors affecting the structure of epiphytic gastropod communities in the St. Lawrence River (Quebec, Canada)

Variations mensuelles de la structure de communautés benthiques littorales d'eau douce en climat froid

Contact Info

Product

Resources

About