Matthias Vignon

Responsabilities

• I give lectures on the Anglet campus of Pau University.
• Undergraduate: Population and Ecosystem Ecology, Evolution, Environment, Biological conservation, Parasitology.
• Graduate: Biostatistics, morphology, Phylogeny.

Skills

I am mostly involved in analyzing sclerochronological structures from fish in ecological and evolutionary contexts. Brown trout (Salmo trutta) remains my main model from both Kerguelen Island were the species was introduced and from its native range in the Pyrenean rivers (France). Most of my work relies on quantitative analysis of otoliths and scales, with specific interest in methodological developments. Other parts consist in experimental approaches dealing with the sensory role of otolith

Research interests

Evolution of life history traits during the colonization of Kerguelen island. Long-term archives allow examining the invasion dynamics of the invasive brown trout over the past 50 years. Data shed light on the future of polar regions where, because of climate change, fish-free ecosystems become increasingly accessible to invasion by fish species.

Quantitative analysis of microchemical profiles. I currently develop methods to facilitate analyzing microchemical profiles from fish otoliths. This allows extracting environmental histories from otolith based on typical elemental sequences generated using methods such as LA-ICPMS. Microchemical analysis is indeed widely used in fisheries management and fisheries biology to identify stocks and characterize fish movements.

Ecological relevance of microchemical data. This part explores using both descriptive and experimental approaches in which way otolith microchemistry represent a permanent record of the growing habitats experienced by the fish throughout its entire life time. This include investigating, among others, the seasonality and time-lags in incorporating elements from the environment.

Determinants of otolith shape variation. This work quantitatively investigates the main determinants of otolith shape variation using a geometric morphometric framework. Multi-scale analysis are conducted with emphasis on ontogenetic trajectories, effect of stress on shape asymmetry, modularity and environmentally-induced plasticity

Morpho-functional ecology. This work is essentially experimental and investigates the effect of otolith shape on the individual behaviour of fish, as well as the reciprocal effect of individual behaviour on otolith ontogenetic trajectory. Otolith shape indeed strongly affect the swimming, hearing and balancing performance of fishes, so that their ability to escape predator is changed

Publications

 1       ● Fels D., Vignon M., Kaltz O. (2008). Ecological and genetic determinants of multiple infection and aggregation in a microbial host-parasite system. Parasitology 135: 1373-1383. IF=2.071

2       ● Justine J-L. & Vignon M. (2008). Monogeneans of the grouper Epinephelus tauvina (Perciformes, Serranidae) off Moorea, French Polynesia, with a description of Pseudorhabdosynochus pai n. sp. (Monogenea: Diplectanidae). Systematic Parasitology 72: 113-125. IF=0.927

3       ● Morat F., Banaru D., Mérigot B., Batjakas I E., Betoulle S.,Vignon M., Lecomte-Finiger R., Letourneur Y. (2008). Relationships between fish length and otolith length for nine fish species from the Mediterranean basin, Kerguelen Islands, and Pacific Ocean. Cybium 32: 265-269. IF=0.403

4       ● Vignon M., Morat F., Galzin R., Sasal P. (2008). Evidence for spatial limitation of the bluestripe snapper in French Polynesia from parasite and otolith shape analysis. Journal of Fish Biology 73: 2305-2320. IF=1.246

5       ● Vignon M. (2009) Biological introductions and parasites in coral reefs ecosystems: Risk and consequences – Fish introduction into the Hawaiian archipelago. Cybium 33: 192. IF=0.403

6       ● Vignon M., Sasal P., Galzin R. (2009). Host introduction and parasites: a case study on the parasite community of the peacock grouper Cephalopholis argus (Serranidae) in the Hawaiian Islands. Parasitology Research. 104: 775-782. IF=1.473

7       ● Vignon M., Sasal P., Rigby M.C., Galzin R. (2009). Multiple parasite introduction and host management plan: Case study from Lutjanids fish in the Hawaiian archipelago. Diseases of Aquatic Organisms 85: 133-145. IF=1.586

8       ● Vignon M., Sasal P., Johnson R.L., Galzin R. (2010). Impact of shark-feeding tourism on surrounding fish populations: parasitological and physiological implication off Moorea Island (French Polynesia). Marine and Freshwater Research 61: 163-169. IF=1.500

9       ● Vignon M., Sasal P. (2010). Fish introduction and parasite in marine ecosystems: A need for information. Environmental Biology of Fishes 87: 1-8. IF=1.133

10      ● Vignon M., Sasal P. (2010). The use of geometric morphometrics in understanding shape variability of sclerotized haptoral structures of monogeneans (Platyhelminthes) with insights into biogeographic variability. Parasitology International 59: 183-191. IF=2.152

11      ● Vignon M., Sasal P. (2010) Multiscale determinant of parasite abundance: A quantitative hierarchical approach for coral reef fishes. International Journal for Parasitology 40: 443-451. IF=3.752

12      ● Work T.M., Vignon M., Aeby G.S. (2010) Microparasite ecology and health status of common bluestriped snapper Lutjanus kasmira from the Pacific Islands. Aquatic Biology 9: 185-192. IF=0.762

13      ● Vignon M., Morat F. (2010) Environmental and genetic determinant of otolith shape revealed by a non-indigenous tropical fish. Marine Ecology Progress Series 411: 231-241. IF=2.631

14      ● Vignon M., Dierking J. (2011) Prey regurgitation and stomach vacuity among groupers and snappers. Environmental Biology of Fishes. IF=1.133

15      ● Vignon M., Pariselle A., Vanhove M.P.M. (2011) Modularity in attachment organs of African Cichlidogyrus (Platyhelminthes, Monogenea, Ancyrocephalidae) reflects phylogeny rather than host specificity or geographic distribution. Biological Journal of the Linnean Society 102: 694-706. IF=2.019

16      ● Vignon M. (2011) Inference in morphological taxonomy using collinear data and small sample sizes: Monogenean sclerites (Platyhelminthes) as a case study. Zoologica Scripta. IF=2.605

17      ● Vignon M. (2011) Putting in shape – Towards a unified approach for the taxonomic description of monogenean haptoral hard parts. Systematic Parasitology 79: 161-174. IF=1.053

18      ● Vignon M. (2012) Ontogenetic trajectories of otolith shape during shift in habitat use: Interaction between otolith growth and environment. Journal of Experimental Marine Biology and Ecology 420-421C: 26-32. IF=1.910

19      ● Gaither, M.R., Aeby, G., Vignon, M., Meguro, Y.-I., Rigby, M., Runyon, C., Toonen, R.J., Wood, C.L., Bowen, B.W. (2013) An invasive fish and the time-lagged spread of its parasite across the Hawaiian Archipelago. PLoS ONE 8(2): e56940. IF=

20      ● Labonne, J., Vignon, M., Prévost, E., Lecomte, F., Dodson, J.J., Kaeuffer, R., Aymes, J.C., Jarry, M., Gaudin, P., Davaine, P., Beall, E. (2013). Invasion dynamics of a fish-free landscape by brown trout (Salmo trutta). PLoS ONE 8(8): e71052.IF=

21      ●  Vignon, M. (2015) Disentangling and quantifying sources of otolith shape variation across multiple scales using a new hierarchical partitioning approach. Marine Ecology Progress Series 534: 163-177. IF=

22      ●  Vignon, M. (2015) Extracting environmental histories from sclerochronological structures - Recursive partitioning as a mean to explore multielemental composition of fish otolith.  Ecological Informatics 30: 159-169. IF=

23      ● Aymes J.C., Vignon M., Beall E., Gueraud F., Gaudin P. (2016) Age validation of the Kerguelen Islands brown trout, Salmo trutta L.,and selection of the otolith optimal zone for investigating chronological data series. Fisheries Research 176: 22-29. IF=

24      ● Vignon M. (2016) Investigating Morphospace occupation in multi-scale ecological and evolutionary data using regression tree: Case studies and perspectives. Evolutionary Biology 44: 120-134. IF=

25      ● Geffroy, B., Guilbaud F., Amilhat E., Beaulaton L., Vignon M., Huchet E., Rives J., Bobe J., Fostier A., Guiguen Y., Bardonnet A. (2016) Sexually dimorphic gene expressions in eels: useful markers for early sex assessment in a conservation context. Scientific Reports 6: 34041. IF=

26      ● Marengo M., Baudouin M., Viret A., Laporte M., Berrebi P., Vignon M., Marchand B., Durieux E.D.H. (2017) Combining microsatellite, otolith shape and parasites community analyses as a holistic approach to assess population structure of Dentex dentex. Journal of Sea Research 128: 1-14.

27      ● Jarry M., Beall1 E., Davaine P., Guéraud F., Gaudin P., Aymes J-C., Labonne J., Vignon M. (2018) Sea trout (Salmo trutta) growth patterns during early steps of invasion in the Kerguelen Islands. Polar Biology.

28      ● Vignon M. (2018) Short-term stress for long-lasting otolith morphology - Brief embryological stress disturbance can reorient otolith ontogenetic trajectory. Canadian Journal of Fisheries and Aquatic Sciences.