Bibliothèque Électronique Lac Saint-Pierre

Life cycle and distribution of Sphaerium corneum (Linne, 1758) (Mollusca; Bivalvia; Sphaeriidae) in the St. Pierre Lake, St. Lawrence River, Quebec

Letarte, Y. et Vaillancourt, G. (1986). Life cycle and distribution of Sphaerium corneum (Linne, 1758) (Mollusca; Bivalvia; Sphaeriidae) in the St. Pierre Lake, St. Lawrence River, Quebec. Le Naturaliste Canadien , 113 (2). p. 201-210.

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Résumé

Average lifespan was c1 year but a few specimens reached 11/2 yr old. Parturition occurred principally in spring. Mean density was from 500 to 8000 individuals.m-2 (yearly average 3500.m-2). The abundance of the species seemed to be related to the composition of the substrate and to have been affected favourably or unfavourably by the aquatic plants. At first, a newly-arrived generation followed a random distribution but aggregation became stronger as parturition continued and as the newly generation aged.

Type de document: Article scientifique
Statut du texte intégral: Autre
Mots-clés libres: Sphaerium corneum, Lake St. Pierre, St. Lawrence River, Life cycle, Distribution
Sujets: 4. Faune > 4.1. Invertébré
Date de dépôt: 15 août 2016 14:36
Dernière modification: 02 avr. 2017 19:08
URI: http://belsp.uqtr.ca/id/eprint/376

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