ehquionest on "[Plugin: WordPress SEO by Yoast] Author name"

Hi !

I wonder why all the time I found my website in google search, I see the title of my post and the name of the author like :

"Loutre de mer - Samuel Blanc"

I would like to not have "Samuel Blanc"

Thank you for your help !
Samuel

http://wordpress.org/extend/plugins/wordpress-seo/