Génétique des populations de Sphaeroma serratum (F.) 11. Étude des populations de la côte nord de Bretagne (de Brest à Saint-Brieuc) = Genetics of populations of Sphaeroma serratum (F.). 11. Study of thepopulations of northern coast of Britany (from Brest to Saint-Brieuce)
Bocquet, Ch.; Lejuez, R. (1974). Génétique des populations de Sphaeroma serratum (F.) 11. Étude des populations de la côte nord de Bretagne (de Brest à Saint-Brieuc) = Genetics of populations of Sphaeroma serratum (F.). 11. Study of thepopulations of northern coast of Britany (from Brest to Saint-Brieuce). Cah. Biol. Mar. 15(2): 160-196
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094, more
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Abstract |
Researches into the genetics of populations of Sphaeroma serratum located on the northern coast of Britany were resumed and developed during the 1967 and 1971 Summers. 105 representative samples, gathering 156345 of Sphaeroma were collected on a part of coast about 350km long from Brest to Saint-Brieuc. The analysis of the results shows the genetic complexity of the Briton populations of the spp. However, more or less clear features can be noted. There is a correlation in the distribution of the frequencies of lunulatum and ornatum on the one hand and that of signatum and 'Red' rubrum, aurantiacum, hesperidum) on the other hand. Besides, there are more signatum and 'Red' in the screened stations in the bottom of bays and on the level of river mouths. |
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