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  • Paul Tixier

First Name :
Paul
Last Name :
Tixier
Email :
Organisme :
IRD
Grade / Titre :
Chargé de Recherche de Classe Normale
Lieu géographique :
Sète
Disciplines :
Ecologie comportementale, Ecologie de la conservation, Sciences de la durabilité
Modèles biologiques :
Mammifères marins
Ecosystèmes :
Ecosystèmes côtiers et littoraux, Ecosystèmes hauturiers
Zones d'études :
Océan Indien, Océan Pacifique, Océan austral
Biographie :
Apres un Master en Ecologie Marine à University of Victoria (Colombie Britannique, Canada), j’ai fait une thèse au CNRS (Centre d’Etudes Biologiques de Chizé, France) sur les interactions des orques et des cachalots avec les pêcheries des iles Crozet (Terres Australes et Antarctiques Françaises). J’ai ensuite étendu mes travaux sur les interactions entre pêcheries et mégafaune marine à d’autres zones (Australie, océan Indien, océan Austral) au cours de postdocs avant d’intégrer l’IRD en tant que chargé de recherche en 2021.

Mes travaux de recherche s’inscrivent dans le contexte général de conflits d’usage entre l’Homme et les espèces animales. J’utilise des approches interdisciplinaires pour évaluer et comprendre les conflits entre pêcheries et mégafaune marine, et développer des solutions durables de coexistence. En particulier, une grande partie de mes travaux se concentre sur l’étude du comportement de déprédation (espèces se nourrissant sur les captures de pêche) des mammifères marins et requins, et sur l’identification de changements dans la pratique de pêche permettant de minimiser, de manière durable, les impacts écologique et socio-économique de ce conflit global.

 

PUBLICATIONS

 

[29] Tixier, P., Lea, M. A., Hindell, M. A., et al. 2021. When large marine predators feed on fisheries catches: Global patterns of the depredation conflict and directions for coexistence. Fish and Fisheries, 22(1), 31-53. https://doi.org/10.1111/faf.12504


[28] Cieslak, M., Tixier, P., Richard, G., Hindell, et al. 2021. Acoustics and photo-identification provide new insights on killer whale presence and movements when interacting with longline fisheries in South East Australia. Fisheries Research, 233, 105748. https://doi.org/10.1016/j.fishres.2020.105748


[27] Janc, A., Guinet, C., Pinaud, D., Richard, G., Monestiez, P. & Tixier, P. 2021. Fishing behaviours and the skipper effect in decision-making processes when facing depredation by marine predators. Fisheries Management & Ecology, 00: 1– 14. https://doi.org/10.1111/fme.12503


[26] Faure, J., Péron, C., Gasco, N., Massiot-Granier, F., Spitz, J., Guinet, C. & Tixier, P. 2021. Contribution of toothfish depredated on fishing lines to the energy intake of killer whales off the Crozet Islands: a multi-scale bioenergetic approach. Marine Ecology Progress Series, 668: 149–161. https://doi.org/10.3354/meps13725


[25] Foote, A. D., Hooper, R., Alexander, A., ... Tixier, P., … Morin, P. A. 2021. Runs of homozygosity in killer whale genomes provide a global record of demographic histories. Molecular Ecology. https://doi.org/10.1111/mec.16137

 

[24] Bestley, S., Ropert-Coudert, Y.,... Tixier, P., … & Wienecke, B. 2020. Marine ecosystem assessment for the Southern Ocean: birds and marine mammals in a changing climate. Frontiers in Ecology and Evolution, 8, 338. https://doi.org/10.3389/fevo.2020.566936 


[23] Tixier, P., Burch, P., Massiot-Granier, F., et al. 2020. Assessing the impact of toothed whale depredation on socio-ecosystems and fishery management in wide-ranging subantarctic fisheries. Reviews in Fish Biology & Fisheries 30: 203–217 217 https://doi.org/10.1007/s11160-020-09597-w


[22] Richard, G., Bonnel, J., Tixier, P., Arnould, J.P.Y., Janc, A. & Guinet, C. 2020. Evidence of deep-sea interactions between toothed whales and longlines. Ambio, 49 (1): 173-186 https://doi.org/10.1007/s13280-019-01182-1


[21] Clavareau, L., Marzloff, M. P., Trenkel, V. M., Bulman, C. M., Gourguet, S., Le Gallic, B., ... & Tixier, P. 2020. Comparison of approaches for incorporating depredation on fisheries catches into Ecopath. ICES Journal of Marine Science, 77(7-8), 3153-3167. https://doi.org/10.1093/icesjms/fsaa219


[20] Tixier, P., Burch, P., Richard, G., et al. 2019. Commercial fishing patterns influence odontocete whale-longline interactions in the Southern Ocean. Scientific Reports, 9: 1904 https://doi.org/10.1038/s41598-018-36389-x


[19] Tixier, P., Giménez, J., Reisinger, R.R., et al. 2019. Importance of toothfish in the diet of generalist subantarctic killer whales: implications for fisheries interactions. Marine Ecology Progress Series, 613: 197-210 https://doi.org/10.3354/meps12894


[18] Busson, M., Authier, M., Barbraud, C., Tixier, P., Reisinger, R.R., Janc, A. & Guinet, C. 2019. Role of sociality in the response of killer whales to an additive mortality event. Proceedings of the National Academy of Sciences, 116(24): 11812-11817 https://doi.org/10.1073/pnas.1817174116


[17] Foote, A.D., Martin, M., Louis, M., …, Tixier, P., Totterdell, J., Wade, P., Gilbert, T., Wolf, J., & Morin, P. 2019. Killer whale genomes reveal a complex history of recurrent admixture and vicariance. Molecular Ecology, 28(14): 3427-3444 https://doi.org/10.1111/mec.15099


[16] Towers, J.R., Tixier, P., Ross, K.A., Bennett, J., Arnould, J.P.Y., Pitman, R.L. & Durban, J.W. 2019. Movements and dive behaviour of a toothfish-depredating killer and sperm whale. ICES Journal of Marine Science, 76(1): 298-311 https://doi.org/10.1093/icesjms/fsy118  


[15] Tixier, P., Lea, M.-A., Hindell, M.A., Guinet, C., Gasco, N., Duhamel, G. & Arnould, J.P.Y. 2018. Killer whale (Orcinus orca) interactions with blue-eye trevalla (Hyperoglyphe antarctica) longline fisheries. PeerJ, 6: e5306 https://doi.org/10.7717/peerj.5306


[14] Janc, A., Guinet, C., Richard, G., Gasco, N., Duhamel, G. & Tixier, P. 2018. How do fishing practices influence sperm whale (Physeter macrocephalus) depredation on demersal longline fisheries? Fisheries Research, 206: 14-26 https://doi.org/10.1016/j.fishres.2018.04.019


[13] Labadie, G., Tixier, P., Gasco, N., Barbraud, C. & Guinet, C. 2018. Abundance and long-term site fidelity of male sperm whales off Crozet and Kerguelen Marine Mammal Science, 34(3): 595-615 https://doi.org/10.1111/mms.12469


[12] Tixier, P., Barbraud, C., Pardo, D., Gasco, N., Duhamel, G. & Guinet, C. 2017. Demographic consequences of fisheries interaction within a killer whale (Orcinus orca) population. Marine Biology, 164(8): 170-186 https://doi.org/10.1007/s00227-017-3195-9


[11] Richard, G., Gasco, N., Duhamel, G., Guinet, C. & Tixier, P. 2017. Do commercial fisheries display optimal foraging? The case of longline fishers in competition with odontocetes. Canadian Journal of Fisheries and Aquatic Sciences, 75(6): 964-976 https://doi.org/10.1139/cjfas-2016-0498


[10] Tixier, P., Gasco, N. & Guinet, C. 2016. Depredation of Patagonian toothfish by two sympatrically occurring killer whale ecotypes: insights on the behaviour of the rarely observed type D killer whales. Marine Mammal Science, 32(3): 983-1003 https://doi.org/10.1111/mms.12307


[9] Tixier, P., Authier, M., Gasco, N. & Guinet, C. 2015. Influence of artificial food provisioning from fisheries on killer whales reproductive output. Animal Conservation, 18(2): 207-208 https://doi.org/10.1111/acv.12161


[8] Gasco, N., Tixier, P., Duhamel, G. & Guinet, C. 2015. Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longline. CCAMLR Science, 22: 1-14 https://www.ccamlr.org/en/publications/science_journal/ccamlr-science-volume-22/1-14


[7] Louis, M., Gally, F., Barbraud, C., Besau, J., Tixier, P., Simon-Bouhet, B., Le Rest, K. & Guinet, C. 2015. Social structure and abundance of coastal bottlenose dolphins in the Normano-Breton Gulf. Journal of Mammalogy, 27: 481-493  https://doi.org/10.1093/jmammal/gyv053


[6] Tixier, P., Vacquié-Garcia, J., Gasco, N., Duhamel, G. & Guinet, C. 2015. Mitigating killer whale depredation on demersal longline fisheries by changing fishing practices. ICES Journal of Marine Science, 72(5): 1610-1620 https://doi.org/10.1093/icesjms/fsu137   


[5] Tixier, P., Gasco, N., Duhamel, G. & Guinet, C. 2015. Habituation to an acoustic harassment device (AHD) by killer whales depredating demersal longlines. ICES Journal of Marine Science, 72(5): 1673-1681 https://doi.org/10.1093/icesjms/fsu166


[4] Guinet, C., Tixier, P., Gasco, N. & Duhamel, G. 2015. Long-term studies of Crozet Island killer whales are fundamental to understanding the economic and demographic consequences of their depredation behaviour on the toothfish fishery. ICES Journal of Marine Science, 72(5): 1587-1597 https://doi.org/10.1093/icesjms/fsu221


[3] Rabearisoa, N., Bach, P., Tixier, P. & Guinet, C. 2012. Pelagic longline fishing trials to shape a mitigation device of the depredation by toothed whales. Journal of Experimental Marine Biology and Ecology, 432-433: 55-63 https://doi.org/10.1016/j.jembe.2012.07.004


[2] Pitman, R.L., Durban, J.W., Greenfelder, M., Guinet, C., Jorgensen, M., Olson, P.A., Plana, J., Tixier, P. & Towers, J. 2011. Observations of a distinctive morphotype of killer whale, type D, from subantarctic waters. Polar Biology, 34:303-306 https://doi.org/10.1007/s00300-010-0871-3 


[1] Tixier, P., Authier, M., Viviant, M., Gasco, N., Duhamel, G. & Guinet, C. 2010. Interactions of Patagonian toothfish fisheries with killer and sperm whales: depredation levels and insights on possible mitigation solutions. CCAMLR Science, 17:179-195 https://www.ccamlr.org/en/publications/science_journal/ccamlr-science-volume-17/ccamlr-science-volume-17179-195 

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