Consulta: creatorFacets:"Thébault, Julien"
Registros recuperados: 3
Data/hora: 01/06/2024 12:36:29

Fundamental questions and applications of sclerochronology: Community-defined research priorities
Provedor de dados: 5
Autores: Trofimova, Tamara; Alexandroff, Stella J.; Mette, Madelyn; Tray, Elizabeth; Butler, Paul G.; Campana, Steven; Harper, Elizabeth; Johnson, Andrew L.a.; Morrongiello, John R.; Peharda, Melita; Schöne, Bernd R.; Andersson, Carin; Andrus, C. Fred T.; Black, Bryan A.; Burchell, Meghan; Carroll, Michael L.; Delong, Kristine L.; Gillanders, Bronwyn M.; Grønkjær, Peter; Killam, Daniel; Prendergast, Amy L.; Reynolds, David J.; Scourse, James D.; Shirai, Kotaro; Thébault, Julien; Trueman, Clive; De Winter, Niels.
Horizon scanning is an increasingly common strategy to identify key research needs and frame future agendas in science. Here, we present the results of the first such exercise for the field of sclerochronology, thereby providing an overview of persistent and emergent research questions that should be addressed by future studies. Through online correspondence following the 5th International Sclerochronology Conference in 2019, participants submitted and rated questions that addressed either knowledge gaps or promising applications of sclerochronology. An initial list of 130 questions was compiled based on contributions of conference attendees and reviewed by expert panels formed during the conference. Herein, we present and discuss the 50 questions rated to...
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00648/76030/76938.pdf

Assessment of Ba/Ca in Arctica islandica shells as a proxy for phytoplankton dynamics in the Northwestern Atlantic Ocean
Provedor de dados: 5
Autores: Doré, Justine; Chaillou, Gwénaelle; Poitevin, Pierre; Lazure, Pascal; Poirier, André; Chauvaud, Laurent; Archambault, Philippe; Thébault, Julien.
Despite its major role as a global climate regulator, little is known about the recent evolution of the North Atlantic Ocean, especially prior to the fifties, principally because of the lack of long-term instrumental data. Moreover, the North Atlantic Ocean is undergoing rapid changes at the physical scale leading to modifications at the biological scale increasing interest to monitor the environment. The phytoplankton is the base of the ocean life and its perturbation can lead to further changes in the food chain. Recording its dynamics implies to observe both its spatial and temporal variations. This study brings forward the use of the Ba/Ca ratio from shells of the long-living bivalve Arctica islandica collected in the Northwestern Atlantic Ocean near...
Tipo: Text
Palavras-chave: A. islandica; Ba/Ca; Master chronology; Cross-dating; Chlorophyll a; Northwestern Atlantic.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00607/71881/70576.pdf

Growth Response of Arctica Islandica to North Atlantic Oceanographic Conditions Since 1850
Provedor de dados: 5
Autores: Poitevin, Pierre; Thébault, Julien; Siebert, Valentin; Donnet, Sébastien; Archambault, Philippe; Doré, Justine; Chauvaud, Laurent; Lazure, Pascal.
The Northwest Atlantic is a key region with an essential role in global climate regulation, redistributing heat and influencing the carbon cycle. However, little is known about its evolution before 1950, mainly because of the lack of long-term instrumental measurements. The hard parts of long-lived marine biota hold the potential to extend instrumentally derived observation by several decades or centuries and enhance our understanding of global climate processes. Here, we investigate the effects of local, regional, and large-scale climate variability on the marine bivalve, Arctica islandica (Linnaeus, 1767) from Saint-Pierre and Miquelon (SPM). This archipelago lies at the boundary zone between the cold Labrador Current in the north and the warm Gulf...
Tipo: Text
Palavras-chave: Arctica islandica; Paleoecology; North Atlantic; Sub polar gyre; Labrador current; Bivalve; Sclerochronology; Climate change.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00509/62050/66198.pdf