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Does trace element composition of bivalve shells record utra-high frequency environmental variations? ArchiMer
Poitevin, Pierre; Chauvaud, Laurent; Pecheyran, Christophe; Lazure, Pascal; Jolivet, Aurélie; Thebault, Julien.
Saint-Pierre and Miquelon (SPM) is a small archipelago where instrumental measures based on water column velocity and temperature profiles compiled comprehensive evidence for strong near-diurnal (25.8h) current and bottom temperature oscillations (up to 11.5 °C) which is possibly the largest ever observed — at any frequency — on a stratified mid-latitude continental shelf. The main objective of our study was to identify if Placopecten magellanicus can record on its shell these high frequency environmental variations. To this end, we have tried to identify proxies for water temperature and food availability through development of a new ultra-high resolution LA-ICPMS analyses method capable of resolving shell surface elemental composition with a 10 μm...
Tipo: Text Palavras-chave: Ultra-high resolution LA-ICPMS; Placopecten magellanicus; Shell chemistry; Trace elements; Environmental change; Bivalve; Environmental proxies; North Atlantic; Saint-Pierre and Miquelon; Coastal trapped wave.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00612/72400/71345.pdf
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Suivi des espèces envahissantes marines à Saint Pierre et Miquelon. Année 2014 ArchiMer
Sellier, Marion; Poitevin, Pierre; Goraguer, Herle; Faure, Jean-marie; Goulletquer, Philippe.
Initiated in 2013, the present work carried out in 2014 extends the monitoring network focusing on marine invasive exotic species in Saint-Pierre and Miquelon archipelago. In a global context of coastal ecosystems’ changes, accentuated by direct or indirect effects of human activities, it became essential to implement a monitoring survey and to track the expansion of marine invasive species along Saint-Pierre and Miquelon shoreline. Fukui traps and tunicates collectors deployed on different stations as well as the timely completion of observational dives, have provided the following conclusions: several invasive species were again reported within the local marine ecosystem. Those species, i.e., Carcinus maenas, Caprella mutica, Ciona intestinalis,...
Tipo: Text Palavras-chave: Marine Invasive species; Saint-Pierre and Miquelon; Aquaculture; Ecosystem; Espèces marines invasives; Saint-Pierre et Miquelon; Aquaculure; Ecosystème.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00312/42303/41635.pdf
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Suivi des espèces envahissantes marines à Saint-Pierre et Miquelon. Année 2013 ArchiMer
Sellier, Marion; Poitevin, Pierre; Goraguer, Herle; Faure, Jean-marie; Goulletquer, Philippe.
This work, conducted in 2013 , is a first monitoring of marine invasive species in Saint-Pierre and Miquelon archipelago. In global changing context on coastal ecosystems , accentuated by direct or indirect effects of human activities, it became essential to implement a survey on marine invasive species on Saint-Pierre and Miquelon shoreline. Fukui traps and tunicates collectors implemented on different stations as well as the timely completion of observational dives , have established the following conclusions : several non native species were detected within the local marine ecosystem. This species , such as Carcinus maenas , Ciona intestinalis , Botryllus schlosseri , Caprella mutica , etc. ... threaten some local marine ecosystems and some local...
Tipo: Text Palavras-chave: Espèces marines invasives; Saint-Pierre et Miquelon; Aquaculture; Écosystème; Marine invasive species; Saint-Pierre and Miquelon; Aquaculture; Ecosystem.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00175/28635/27118.pdf
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