دورية أكاديمية
The FOBIMO (FOraminiferal BIo-MOnitoring) initiative—Towards a standardised protocol for soft-bottom benthic foraminiferal monitoring studies
| العنوان: | The FOBIMO (FOraminiferal BIo-MOnitoring) initiative—Towards a standardised protocol for soft-bottom benthic foraminiferal monitoring studies |
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| المؤلفون: | Schönfeld, Joachim, Alve, Elisabeth, Geslin, Emmanuelle, Jorissen, Frans, Korsun, Sergei, Spezzaferri, Silvia, Abramovich, Sigal, Almogi-Labin, Ahuva, Chatelet, Eric Armynot Du, Barras, Christine, Bergamin, Luisa, Bicchi, Erica, Bouchet, Vincent, Cearreta, Alejandro, Bella, Letizia Di, Dijkstra, Noortje, Disaro, Sibelle Trevisan, Ferraro, Luciana, Frontalini, Fabrizio, Gennari, Giordana, Golikova, Elena, Haynert, Kristin, Hess, Silvia, Husum, Katrine, Martins, Virginia, Mcgann, Mary, Oron, Shai, Romano, Elena, Sousa, Silvia Mello, Tsujimoto, Akira |
| المساهمون: | University of Oslo (UiO), Bio-Indicateurs Actuels et Fossiles (BIAF), Université d'Angers (UA), Ben-Gurion University of the Negev (BGU), The Hebrew University of Jerusalem (HUJ), Laboratoire de Planétologie et Géodynamique - Angers (LPG-ANGERS), Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Grenoble Alpes - Institut d'Administration des Entreprises (UGA IAE), Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ), Facultad de Ciencia y Tecnologia, Bilbao, Università degli Studi di Urbino 'Carlo Bo', Norwegian Polar Institute, Universidade do Estado do Rio de Janeiro Brasil = Rio de Janeiro State University Brazil = Université d'État de Rio de Janeiro Brésil (UERJ), Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA) |
| المصدر: | ISSN: 0377-8398 ; Marine Micropaleontology ; https://hal.science/hal-03976556Test ; Marine Micropaleontology, 2012, 94-95 (14), pp.1-13. ⟨10.1016/j.marmicro.2012.06.001⟩. |
| بيانات النشر: | HAL CCSD Elsevier |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | [SDE]Environmental Sciences |
| الوصف: | International audience ; Abstract. Benthic foraminiferal tests are widely used for paleoceanographic reconstructions from a range of different environments with varying dissolved oxygen concentrations in the bottom water. There is ample evidence that foraminifera can live in anoxic sediments. For some species, this is explained by a switch to facultative anaerobic metabolism (i.e. denitrification). Here we show for the first time that adult specimens of three benthic foraminiferal species are not only able to survive, but are also able to calcify under anoxic conditions, at various depths in the sediment, and with or without nitrates. In fact, several specimens of Ammonia tepida (1–4%), Bulimina marginata (8–24%) and Cassidulina laevigata (16–23%) were able to calcify at different redox fronts of sediment cores, under laboratory conditions. This demonstrates ongoing metabolic processes, even in micro-environments where denitrification is not possible. Earlier observations suggest that the disappearance of foraminiferal communities after prolonged anoxia is not due to instantaneous or strongly increased adult mortality. Here we show that it cannot be explained by an inhibition of growth through chamber addition either. Our observations of ongoing calcification under anoxic conditions mean that geochemical proxy data obtained from benthic foraminifera in settings experiencing intermittent anoxia have to be reconsidered. The analysis of whole single specimens or of their successive chambers may provide essential information about short-term environmental variability and/or the causes of anoxia. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | hal-03976556; https://hal.science/hal-03976556Test |
| DOI: | 10.1016/j.marmicro.2012.06.001 |
| الإتاحة: | https://doi.org/10.1016/j.marmicro.2012.06.001Test https://hal.science/hal-03976556Test |
| رقم الانضمام: | edsbas.B2B4C5BB |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.marmicro.2012.06.001 |
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