Benjamin Geffroy

Laboratoire Adaptation et Adaptabilites des Animaux et des Systemes (PDG-RBE-MARBEC-LAAAS)

Contact par courriel

04 67 13 04 14

Employeur : Ifremer

Site : Palavas

Adresse postale : Station de Palavas - Chemin de Maguelone - 34250 Palavas les Flots


Jeux de données


Geffroy Benjamin (2018). RNA-Seq juvéniles de bar: Projet 3S (Seabass, Sex and Stress). IFREMER.



Guirandy Noemie, Armant Olivier, Frelon Sandrine, Pierron Fabien, Geffroy Benjamin, Daffe Guillemine, Houdelet Camille, Gonzalez Patrice, Simon Olivier (2023). Altered ovarian transcriptome is linked to early mortality and abnormalities in zebrafish embryos after maternal exposure to gamma irradiation . Aquatic Toxicology , 262, 106660 (11p.) .
Houdelet Camille, Blondeau-Bidet Eva, Estevez-Villar Mathilde, Mialhe Xavier, Hermet Sophie, Ruelle Francois, Dutto Gilbert, Bajek Aline, Bobe Julien, Geffroy Benjamin Circulating MicroRNAs Indicative of Sex and Stress in the European Seabass (Dicentrarchus labrax): Toward the Identification of New Biomarkers . Marine Biotechnology IN PRESS . Publisher's official version : , Open Access version :
Alfonso Sebastien, Houdelet Camille, Bessa Eduardo, Geffroy Benjamin, Sadoul Bastien Water temperature explains part of the variation in basal plasma cortisol level, within and between‐ fish species . Journal of Fish Biology IN PRESS .
Geffroy Benjamin, Sandoval‐vargas Leydy, Boyer‐clavel Myriam, Pérez‐atehortúa Maritza, Lallement Stephane, Isler Iván Valdebenito A simulated marine heatwave impacts European sea bass sperm quantity, but not quality . Journal of Fish Biology IN PRESS .


Schacht Ryan, Beissinger Steven R., Wedekind Claus, Jennions Michael D., Geffroy Benjamin, Liker András, Kappeler Peter M., Weissing Franz J., Kramer Karen L., Hesketh Therese, Boissier Jérôme, Uggla Caroline, Hollingshaus Mike, Székely Tamás (2022). Adult sex ratios: causes of variation and implications for animal and human societies . Communications Biology , 5(1), 1273 (16p.) . Publisher's official version : , Open Access version :
Geffroy Benjamin (2022). Energy as the cornerstone of environmentally driven sex allocation . Trends In Endocrinology And Metabolism , 33(10), 670-679 . Publisher's official version : , Open Access version :
Goikoetxea Alexander, Servili Arianna, Houdelet Camille, Mouchel Olivier, Hermet Sophie, Clota Frederic, Aerts Johan, Fernandino Juan Ignacio, Allal Francois, Vandeputte Marc, Blondeau-Bidet Eva, Geffroy Benjamin (2022). Natural cortisol production is not linked to the sexual fate of European sea bass . Fish Physiology And Biochemistry , 48(4), 1117-1135 . Publisher's official version : , Open Access version :
Sadoul Bastien, Alfonso Sebastien, Goold Conor, Pratlong Marine, Rialle Stéphanie, Geffroy Benjamin, Bégout Marie-Laure (2022). Transcriptomic profiles of consistent risk-taking behaviour across time and contexts in European sea bass . Proceedings Of The Royal Society B-biological Sciences , 289(1975), 20220399 (10p.) . Publisher's official version : , Open Access version :
Lallement Stephane, Bengue Allan, Geffroy Benjamin (2022). A novel method to individually track spawning females in aquaculture tanks using the European sea bass (Dicentrarchus labrax) as a model . Aquaculture , 551, 737937 (4p.) . Publisher's official version : , Open Access version :
Dussenne Mélanie, Goikoetxea Alexander, Geffroy Benjamin, Besseau Laurence (2022). Neuroendocrinology of Life History and Stress in Anemonefishes . In Evolution, Development and Ecology of Anemonefishes. Model Organisms for Marine Science. Vincent Laudet, Timothy Ravasi (Eds). DOI 10.1201/9781003125365, eBook ISBN 9781003125365. Part 2 Life History and Development, Chap.11, pp.103-113 (CRC Press) .


Geffroy Benjamin, Besson Mathieu, Sánchez-Baizán Núria, Clota Frederic, Goikoetxea Alexander, Sadoul Bastien, Ruelle Francois, Blanc Marie-Odile, Parrinello Hugues, Hermet Sophie, Blondeau-Bidet Eva, Pratlong Marine, Piferrer Francesc, Vandeputte Marc, Allal Francois (2021). Unraveling the genotype by environment interaction in a thermosensitive fish with a polygenic sex determination system . Proceedings Of The National Academy Of Sciences Of The United States Of America , 118(50), e2112660118 (12p.) . Publisher's official version : , Open Access version :
Bessa Eduardo, Sadoul Bastien, McKenzie David, Geffroy Benjamin (2021). Group size, temperature and body size modulate the effects of social hierarchy on basal cortisol levels in fishes . Hormones And Behavior , 136, 105077 (6p.) . Publisher's official version : , Open Access version :
Roque D'Orbcastel Emmanuelle, Bettarel Yvan, Dellinger Marion, Sadoul Bastien, Bouvier Thierry, Monin Amandé Justin, Dagorn Laurent, Geffroy Benjamin (2021). Measuring cortisol in fish scales to study stress in wild tropical tuna . Environmental Biology Of Fishes , 104(6), 725-732 . Publisher's official version : , Open Access version :
McKenzie David, Geffroy Benjamin, Farrell Anthony P. (2021). Effects of global warming on fishes and fisheries . Journal Of Fish Biology , 98(6), 1489-1492 . Publisher's official version : , Open Access version :
Geffroy Benjamin, Gesto Manuel, Clota Frederic, Aerts Johan, Darias Maria J., Blanc Marie-Odile, Ruelle Francois, Allal Francois, Vandeputte Marc (2021). Parental selection for growth and early-life low stocking density increase the female-to-male ratio in European sea bass . Scientific Reports , 11(1), 13620 (14p.) . Publisher's official version : , Open Access version :
Douhard Mathieu, Geffroy Benjamin (2021). Males can adjust offspring sex ratio in an adaptive fashion through different mechanisms . Bioessays , 43(5), 2000264 (12p.) .
Sadoul Bastien, Blumstein Daniel T., Alfonso Sebastien, Geffroy Benjamin (2021). Human protection drives the emergence of a new coping style in animals . Plos Biology , 19(4), e3001186. (11p.) . Publisher's official version : , Open Access version :
Mallet Alicia, Jouvenel Jean-Yves, Broyon Morgane, Pirot Nelly, Geffroy Benjamin (2021). Histology of Tritia mutabilis gonads: using reproductive biology to support sustainable fishery management . Aquatic Living Resources , 34, 6 (9p.) . Publisher's official version : , Open Access version :
Goikoetxea Alexander, Sadoul Bastien, Blondeau Bidet Eva, Aerts Johan, Blanc Marie-Odile, Parrinello Hugues, Barrachina Célia, Pratlong Marine, Geffroy Benjamin (2021). Genetic pathways underpinning hormonal stress responses in fish exposed to short- and long-term warm ocean temperatures . Ecological Indicators , 120, 106937 (12p.) . Publisher's official version : , Open Access version :


Vandeputte Marc, Clota Frederic, Sadoul Bastien, Blanc Marie-Odile, Blondeau-Bidet Eva, Bégout Marie-Laure, Cousin Xavier, Geffroy Benjamin (2020). Low temperature has opposite effects on sex determination in a marine fish at the larval/postlarval and juvenile stages . Ecology And Evolution , 10(24), 13825-13835 . Publisher's official version : , Open Access version :
Sadoul Bastien, Geffroy Benjamin, Lallement Stephane, Kearney Michael (2020). Multiple working hypotheses for hyperallometric reproduction in fishes under metabolic theory . Ecological Modelling , 433, 109228 (8p.) .
Geffroy Benjamin, Sadoul Bastien, Putman Breanna J., Berger-Tal Oded, Garamszegi László Zsolt, Møller Anders Pape, Blumstein Daniel T., de Waal Frans B. M. (2020). Evolutionary dynamics in the Anthropocene: Life history and intensity of human contact shape antipredator responses . Plos Biology , 18(9), e3000818 (17p.) . Publisher's official version : , Open Access version :
Geffroy Benjamin, Wedekind Claus (2020). Effects of global warming on sex ratios in fishes . Journal Of Fish Biology , 97(3), 596-606 . Publisher's official version : , Open Access version :


Samia Diogo S. M., Bessa Eduardo, Blumstein Daniel T., Nunes José A. C. C., Azzurro Ernesto, Morroni Lorenzo, Sbragaglia Valerio, Januchowski‐hartley Fraser A., Geffroy Benjamin (2019). A meta‐analysis of fish behavioural reaction to underwater human presence . Fish And Fisheries , 20(5), 817-829 . Publisher's official version : , Open Access version :
Alfonso Sebastien, Sadoul Bastien, Gesto Manuel, Joassard Lucette, Chatain Beatrice, Geffroy Benjamin, Bégout Marie-Laure (2019). Coping styles in European sea bass: The link between boldness, stress response and neurogenesis . Physiology & Behavior , 207, 76-85 . Publisher's official version : , Open Access version :
Bessa Eduardo, Blumstein Daniel T., Samia Diogo S. M., Geffroy Benjamin (2019). Pets at ecotourism destinations: cute mascot or trojan horse? Current Issues In Tourism , 22(13), 1523-1525 . Publisher's official version : , Open Access version :
Challier Lylian, Geffroy Benjamin, Dreanno Catherine (2019). Méthodologie électrochimique pour le développement d’un aptacapteur marin à cortisol . Journées d’Electrochimie 2019. 1-4 juillet 2019, Toulouse .
Geffroy Benjamin, Douhard Mathieu (2019). The Adaptive Sex in Stressful Environments . Trends In Ecology & Evolution , 34(7), 628-640 . Publisher's official version : , Open Access version :
Sadoul Bastien, Geffroy Benjamin (2019). Measuring cortisol, the major stress hormone in fishes . Journal Of Fish Biology , 94(4), 540-555 . Publisher's official version : , Open Access version :
Geffroy Benjamin (2019). Température, stress et sexe : le changement climatique va-t-il masculiniser les poissons ? The Conversation , 111029 (4p.) . Open Access version :


Sadoul Bastien, Alfonso Sebastien, Bessa E., Bouchareb A., Blondeau-Bidet E., Clair P., Chatain Beatrice, Begout Marie-Laure, Geffroy Benjamin (2018). Enhanced brain expression of genes related to cell proliferation and neural differentiation is associated with cortisol receptor expression in fishes . General And Comparative Endocrinology , 267, 76-81 . Publisher's official version : , Open Access version :
Kiilerich Pia, Geffroy Benjamin, Valotaire Claudiane, Prunet Patrick (2018). Endogenous regulation of 11-deoxycorticosterone (DOC) and corticosteroid receptors (CRs) during rainbow trout early development and the effects of corticosteroids on hatching. General And Comparative Endocrinology , 265, 22-30 . Publisher's official version : , Open Access version :
Geffroy Benjamin, Sadoul Bastien, Bouchareb Amine, Prigent Sylvain, Bourdineaud Jean-Paul, Gonzalez-Rey Maria, Morais Rosana N., Mela Maritana, Carvalho Lucelia Nobre, Bessa Eduardo (2018). Nature-Based Tourism Elicits a Phenotypic Shift in the Coping Abilities of Fish . Frontiers In Physiology , 9(13), 1-17 . Publisher's official version : , Open Access version :
Vandeputte Marc, Allal Francois, Anastasiadi Dafni, Vasilescu Alexandre, Geffroy Benjamin, Piferrer Francesc, Chatain Beatrice (2018). Genomic prediction of phenotypic sex within European sea bass families: a new tool to understand and control sex ratio variations in a species with polygenic sex determination . AQUA 2018 - World Aquaculture Society Meetings. August 25-29 2018, Montpellier, France .


Bessa Eduardo, Geffroy Benjamin, Goncalves-De-Freitas Eliane (2017). Tourism impact on stream fish measured with an ecological and a behavioural indicator . Aquatic Conservation-marine And Freshwater Ecosystems , 27(6), 1281-1289 .
Ifremer (2017). Bioressources marines . Rapport du groupe 1c - Réflexion stratégique 2017-2018 .
Olivotto Ike, Geffroy Benjamin (2017). Clownfish . In Marine Ornamental Species Aquaculture. 1st edition. 2017. Edited by Ricardo Calado, Ike Olivotto, Miquel Planas Oliver and G. Joan Holt. John Wiley & Sons, Ltd, Chichester, UK.. Chap.12, pp.177-199 (Wiley-Blackwell) .


Geffroy Benjamin, Guilbaud Florian, Amilhat Elsa, Beaulaton Laurent, Vignon Matthias, Huchet Emmanuel, Rives Jacques, Bobe Julien, Fostier Alexis, Guiguen Yann, Bardonnet Agnes (2016). Sexually dimorphic gene expressions in eels: useful markers for early sex assessment in a conservation context . Scientific Reports , 6(34041), 1-11 .
Geffroy Benjamin, Bardonnet Agnes (2016). Sex differentiation and sex determination in eels: consequences for management . Fish And Fisheries , 17(2), 375-398 .
Geffroy Benjamin, Bolliet Valerie, Bardonnet Agnes (2016). Kleptoparasitism and aggressiveness are influenced by standard metabolic rate in eels . Physiology & Behavior , 157, 165-169 .
Geffroy Benjamin, Samia Diogo S. M., Bessa Eduardo, Blumstein Daniel T. (2016). Nature-Based Tourism and Prey Vulnerability to Predators: A Reply to Fitzgerald and Stronza . Trends In Ecology & Evolution , 31(2), 95-96 .


Colson Violaine, Valotaire Claudiane, Geffroy Benjamin, Kiilerich Pia (2015). Egg Cortisol Exposure Enhances Fearfulness in Larvae and Juvenile Rainbow Trout . Ethology , 121(12), 1191-1201 .
Geffroy Benjamin, Samia Diogo S. M., Bessa Eduardo, Blumstein Daniel T. (2015). How Nature-Based Tourism Might Increase Prey Vulnerabiliy to Predators . Trends In Ecology & Evolution , 30(12), 755-765 .
Geffroy Benjamin, Sadoul Bastien, Bardonnet Agnes (2015). Behavioural syndrome in juvenile eels and its ecological implications . Behaviour , 152(2), 147-166 .


Ladhar Chiraz, Geffroy Benjamin, Cambier Sebastien, Treguer-Delapierre Mona, Durand Etienne, Brethes Daniel, Bourdineaud Jean-Paul (2014). Impact of dietary cadmium sulphide nanoparticles on Danio rerio zebrafish at very low contamination pressure . Nanotoxicology , 8(6), 676-685 .
Simon Olivier, Floc'h Estelle, Geffroy Benjamin, Frelon Sandrine (2014). Exploring ecotoxicological fish bioassay for the evaluation of uranium reprotoxicity . Environmental Toxicology And Chemistry , 33(8), 1817-1824 .
Geffroy Benjamin, Bru Noelle, Dossou-Gbete Simplice, Tentelier Cedric, Bardonnet Agnes (2014). The link between social network density and rank-order consistency of aggressiveness in juvenile eels . Behavioral Ecology And Sociobiology , 68(7), 1073-1083 .


Geffroy Benjamin, Guiguen Yann, Fostier Alexis, Bardonnet Agnes (2013). New insights regarding gonad development in European eel: evidence for a direct ovarian differentiation . Fish Physiology And Biochemistry , 39(5), 1129-1140 .
Geffroy Benjamin, Simon Olivier (2013). Effects of a Spirulina platensis-based diet on zebrafish female reproductive performance and larval survival rate . Cybium , 37(1-2), 31-38 .


Geffroy Benjamin, Ladhar Chiraz, Cambier Sebastien, Treguer-Delapierre Mona, Brethes Daniel, Bourdineaud Jean-Paul (2012). Impact of dietary gold nanoparticles in zebrafish at very low contamination pressure: The role of size, concentration and exposure time . Nanotoxicology , 6(2), 144-160 .
Geffroy Benjamin, Fostier A., Guiguen Y., Bardonnet A. (2012). Unusual Cases of Adult Intersexuality in the European Eel Anguilla anguilla . Sexual Development , 6(6), 316-319 .


Simon Olivier, Mottin Elmina, Geffroy Benjamin, Hinton Thomas (2011). Effects of dietary uranium on reproductive endpoints—fecundity, survival, reproductive success—of the fish Danio rerio . Environmental Toxicology And Chemistry , 30(1), 220-225 .

Haut de page