Blar i forfatter "Ciret, Pierre"

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    • Evidence of separate influence of moon and sun on light synchronization of mussel's daily rhythm during the polar night 

      Tran, Damien; Andrade Rodriguez, Hector Antonio; Camus, Lionel; Leopold, Peter; Ballantine, Carl; Berge, Jørgen; Durier, Guillaume; Sow, Mohamedou; Ciret, Pierre (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-09)
      Marine organisms living at high latitudes are faced with a light climate that undergoes drastic annual changes, especially during the polar night (PN) when the sun remains below the horizon for months. This raises the question of a possible synchronization and entrainment of biological rhythms under the governance of light at very low intensities. We analyzed the rhythms of the mussel <i>Mytilus</i> ...

    • Growth and behaviour of blue mussels, a re-emerging polar resident, follow a strong annual rhythm shaped by the extreme high Arctic light regime: Mussels' growth and behavior in Arctic 

      Tran, Damien; Andrade Rodriguez, Hector Antonio; Durier, Guillaume; Ciret, Pierre; Leopold, Peter; Sow, Mohamedou; Ballantine, Carl; Camus, Lionel; Berge, Jørgen; Perrigault, Mickael (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-14)
      Polar regions are currently warming at a rate above the global average. One issue of concern is the consequences on biodiversity in relation to the Northward latitudinal shift in distribution of temperate species. In the present study, lasting almost two years, we examined two phenological traits, i.e. the shell growth and behavioural rhythm of a recently re-established species in the high Arctic, ...

    • In the darkness of the polar night, scallops keep on a steady rhythm 

      Tran, Damien; Sow, Mohamedou; Camus, Lionel; Ciret, Pierre; Berge, Jørgen; Massabuau, Jean-Charles (Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
      Although the prevailing paradigm has held that the polar night is a period of biological quiescence, recent studies have detected noticeable activity levels in marine organisms. In this study, we investigated the circadian rhythm of the scallop Chlamys islandica by continuously recording the animal’s behaviour over 3 years in the Arctic (Svalbard). Our results showed that a circadian rhythm persists ...