2 Works

Data from: Structure of the rare archaeal biosphere and seasonal dynamics of active ecotypes in surface coastal waters

Najwa Taib, Mylène Hugoni, Didier Debroas, Isabelle Domaizon, Isabelle Jouan-Dufournel, Gisèle Bronner, Ian Salter, Hélène Agogué, Isabelle Mary & Pierre E. Galand
Marine Archaea are important players among microbial plankton and significantly contribute to biogeochemical cycles, but details regarding their community structure and long-term seasonal activity and dynamics remain largely unexplored. In this study, we monitored the inter-annual archaeal community composition of abundant and rare biospheres in northwestern Mediterranean Sea surface waters by pyrosequencing 16S rDNA and rRNA. A detailed analysis of the rare biosphere structure showed that the rare archaeal community was composed of three distinct...

Data from: To breed or not to breed: endocrine response to mercury contamination by an Arctic seabird

Sabrina Tartu, Aurélie Goutte, Paco Bustamante, Frédéric Angelier, Børge Moe, Céline Clément-Chastel, Claus Bech, Geir Wing Gabrielsen, Jan Ove Bustnes & Olivier Chastel
Mercury, a ubiquitous toxic element, is known to alter expression of sex steroids and to impair reproduction across vertebrates but the mechanisms underlying these effects are not clearly identified. We examined whether contamination by mercury predicts the probability to skip reproduction in black-legged kittiwakes (Rissa tridactyla) from Svalbard. We also manipulated the endocrine system to investigate the mechanism underlying this relationship. During the pre-laying period, we injected exogenous GnRH (gonadotropin-releasing hormone) to test the ability...

Registration Year

  • 2013
    2

Resource Types

  • Dataset
    2

Affiliations

  • University of La Rochelle
    2
  • French National Centre for Scientific Research
    1
  • Norwegian Polar Institute
    1
  • Norwegian Institute for Nature Research
    1
  • Norwegian University of Science and Technology
    1