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5th International Workshop on the Biology of Fish Gametes, 07-11 septembre, Ancone, Italie
Alix, M., Chardard, D., Feizbakhsh, O., Ledore, Y., Schaerlinger, B., Fontaine, P.
2015
INTRODUCTION
The Eurasian perch is an important candidate to promote diversification of the freshwater fish species in Europe. Indeed, its delicate flesh is appreciated and has a high economical value. Since several years the control of perch reproduction through photo-thermo periodic variations has been unlocked (Abdulfatah et al., 2011). Now, a new stock point appears to be the gametes quality and developmental impairments (mortality and/or abnormalities occurrence) during embryogenesis. However, this question is difficult to discern because criteria used to define quality are not always well characterized. In addition, the normal development of the perch is still poorly known. A first description of its embryogenesis remained elusive (Chevey, 1925). We thus choose (i) to better characterize the normal development of P. fluviatilis through video-microscopy and histological studies and (ii) to use this developmental table to define most common deformities met in perch development and mortality stages. When possible, those data further allow us to preset spawns ‘quality and then do a classification of the spawns.
MATERIALS AND METHODS
To ensure a large diversity of spawn quality experiments have been conducted independantly on fish with diverse origins: (i) domesticated fish from Geneva Lake (Lucas Perches (Hampont, France)) induced in our indoor facilities thanks to Abdulfatah et al., 2011 and (ii) wild perch caught in two ponds in Lorraine (GAEC Piscicole du Saulnois and D. Nippert pond) one month before the spawning season and kept in our outdoors facilities. Artificial reproductions were performed according to Zarski et al. (2012), in order to determine the beginning of development. After fertilization and until the first oral feeding, embryos were incubated in our indoor hatchery at 13°C ± 0.5°C. Embryogenesis of 35 spawn was studied by time lapse-video microscopy, using a light upright optical microscope (Nikon Eclipse Ni-U). Embryos were sampled once a day and fixed in Bouin’s solution to later perform histological studies and analyze organs ontogeny. In addition, the survival rate was checked daily for 5 days (300 randomly choosen egg/spawn) to determine mortality stages and hatching rates. Abnormal embryos were retrieved and fixed in 4% formaldehyde to perform microscopic studies or in Bouin’s solution for histological experiments.
RESULTS
In Eurasian perch, embryogenesis, from ova’s activation to the first oral feeding lasts for 15 days at 13°C (optimal temperature according to Saat and Veersalu, 1996). It can be divided into 5 main periods: zygote, cell cleavage, gastrulation, organogenesis and free embryo periods from hatching to the first food intake..Some of these periods can further be subdivided. The cell cleavage begins 2.5 hours after fertilization and lasts for 24 hours as the gastrulation. So the third day post-fertilization (dpf) the first tissue differentiation begins with the definition of antero-posterior axis, the notochord and the optic vesicle apparitions before the tailbud closure. We choose to focus a particular attention on the ontogeny of digestive and visual functions because they play an important role in the first oral feeding and larval survival. The optic capsule first appears 3 dpf and, the various layers of the eyes develop in parallel. At 7dpf, the first choroid melanocytes appear and give their color to the eyes. From 8 dpf, the eyes are histologically mature. The digestive system first develops from 4 dpf with the apparition of intestine anlage. The first peristaltic movements take place at 10 dpf and all embryos first feed 15 after the fertilization. First hatching occur from 6 dpf and last for 5 days in average within a spawn, whatever the origin of the breeders. The last embryo to hatch was observed14.5 dpf while the first food intake took place 15 dpf in every tested spawn. It means the free embryo period can elapse from 9 to 1/2 days during which the embryo fast.
Once the normal development described, it was interesting to make an overview of the developmental defects that could be met during perch development. We focused on the characterization of deformities occurrence and the identification of key steps that could lead to a massive lethality. Concerning the later one, three main groups of spawn were found with different survival rates upon the time. The first category groups spawn with hatching rates over than 90%, the second group spawn had high mortality during early embryogenesis and low hatching rate (60 % and 14 %, respectively) and finally the third one corresponds to embryos that never hatch and die during early embryogenesis. An accurate study of these lethalities showed two stock point 24h and 48h after the fertilization suggesting that the cell cleavage to gastrulation and gastrulation to organogenesis transitions are key steps for reproduction success. In addition, the study of the deformities occurrences showed that, in our conditions, the deformities rates range from 0 to 20 %. In the meantime, 6 main categories of deformities have been characterized according the abnormal organ (e.g. skeletal, yolk, jaw, eyes or heart). A statistical analysis of these data allows to make a classification of spawn according to the lethality stage and the type of abnormalities.
DISCUSSION AND CONCLUSIONS
Pierre Chevey first (1925) investigated Perca fluviatilis development. Most of our observations seem similar to these his study and we complete with histological observations. Among the crucial point is the definition of the end of the embryonic development. While some believe that this is hatching, other use the first food intake (Peñaz, 2001). In our study, we clearly observed that the onset the first food intake always takes place 15 dpf while hatching can last over 5 days. In these conditions this last step better define the end of embryogenesis. Our study of the developmental impairments showed that (i) the end of the cell cleavage and the gastrulation both constitute crucial stages the defects of which could lead to death and (ii) some organs seem particularly touched by potential deformities. These data constitute a solid basis to investigate further the reasons of the developmental defects in perch and their links with the gametes quality.
AKNOWLEDGEMENTS
This work was supported by Research Ministry (PhD fellowship of M.A.), INRA Departement PHASE, Lorraine region and the COST Action FA1205 AQUAGAMETE.
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Milla, S., Denis, C., Nedjar, S., Ledore, Y., Silvestre, F., Schaerlinger, B., Chevalier, C.
52° congrès du Groupe Français de Recherches sur les Pesticides, 22-24 mai, Lyon, France
Conseil, G., Milla, S., Cardoso, O., Rosin, C., Pasquini, L., Pierlot, F., Banas, D.
Séminaire de l'Office National de la Biodiversité 'Les étangs piscicoles', 13-14 mars, Lyon, France
Aubin, J., Thomas, M., Lecocq, T., Robin, J., Dupont, C., Tocqueville, A., Laithier, J., Pannard, A., Coudreuse, J., Roucaute, M., Jaeger, C., Wilfart, A., Maillot, M., Corson, M.
SETAC Europe 34rd Annual Meeting - Science-Based Solutions in Times of Crisis: Integrating Science and Policy for Environmental Challenges, 05-09 mai, Séville, Espagne
Conseil, G., Milla, S., Rosin, C., Cardoso, O., Banas, D.
Collogue de la ComAqua - AFSTAL, 18 octobre, Lyon, France
Ledore, Y., Thomas, M.
Séminaire national du Salon des Etangs, 19-21 avril, Parçay-Meslay, France
Thomas, M., Lecocq, T., Dousset, S., Abildtrup, J., Durand, P.
Journée Scientifique École doctorale SIRENA, 05 mars, Visio, France
Viana, J., Evanno, G., Audet, C., Teletchea, F.
World Fisheries Congress, 03-07 mars, Seattle, Etats-unis
Viana, J., Evanno, G., Audet, C., Teletchea, F.
8ème Journée de la Recherche, Filière Piscicole, 02-03 juillet, Rennes, France
Chevalier, C., Praion, M., Ledore, Y., Lecocq, T., Silvestre, F., Schaerlinger, B., Milla, S.
AQUA2024, 26-30 août, Copenhague, Denmark
Lecocq, T., Benard, A., Pétronin, F., Thomas, M.
AQUA2024, 26-30 août, Copenhague, Denmark
Lecocq, T., Chevalier, C., Praion, M., Leclerc, T., Shahjahn, M.-D., Ledore, Y., Silvestre, F., Schaerlinger, B., Milla, S.
AQUA2024, 26-30 août, Copenhague, Denmark
Lévy, S., Thomas, M., Mortillaro, J.-M., Carval, D., Lecocq, T.
100 ans de la Fédération Française d'Aquaculture, 17-18 octobre, Bordeaux, France
Allal, F., Fontaine, P.
Journée scientifique de l'école doctorale SIReNa 2024, 05 mars, Vandœuvre-lès-Nancy, France
Conseil, G., Milla, S., Banas, D.
Assemblée générale d’Etangs de France, 16 juin, Nancy, France
Fontaine, P.
3ème Réunion générale annuelle GEN-FISH, 07-08 décembre, Visio, Canada
Viana, J., Teletchea, F., Audet, C.
European Aquaculture Society EAS, 18-21 septembre, Vienne, Autriche
Al Dakdouki, S., Fontaine, P., Ledore, Y., Nivelle, R., Changey, F.
7ème conference Panafrican Association on Fish and Fisheries, 18-22 septembre, Brazzaville, République du Congo
Amoussou, N., Lecocq, T., Pasquet, A., Thomas, M.
Aquaculture Europe 2023, 19-21 septembre, Vienne, Autriche
Bernath, G., Milla, S., Várkonyi, L., Ledore, Y., Griffitts, J.D., Fontaine, P., Urbányi, B., Bokor, Z.
Aquaculture Europe 2023, Balanced Diversity in Aquaculture Development, 18-21 septembre, Vienne, Autriche
Fontaine, P., Lecocq, T., Thomas, M.
Symposium for European Freshwater Sciences, 18-21 septembre, New Castle Upon Tyne, United Kingdom
Girard, L., Aubin, J., Thomas, M., Lecocq, T., Robin, J., Tocqueville, A., Laithier, J., Pannard, A., Coudreuse, J., Roucaute, M., Jaeger, C., Wilfart, A., Latourre, Q., Maillot, M., Corson, M.
12th International Symposium on Reproductive Physiology of Fish, 15-19 mai, Crete, Greece
Schaerlinger, B., Fontagne-dicharry, S., Gasmi, S., Durante-alami, H., Ledore, Y., Fontaine, P., Nahon, S., Chardard, D.
Aquaculture Europe 2023, Balanced Diversity in Aquaculture Development, 18-21 septembre, Vienne, Autriche
Thomas, M., Amoussou, N., Pasquet, A., Lecocq, T.
2ème Congrès International des Sciences Aquatiques de Saint-Pierre et Miquelon, 27 septembre - 01 octobre, Saint-Pierre et Miquelon, France
Viana, J., Evanno, G., Audet, C., Teletchea, F.
Réunion annuelle de Ressources Aquatiques Québec (RAQ), 06-08 novembre, Québec, Canada
Viana, J., Evanno, G., Audet, C., Teletchea, F.
Séminaire LéCOMICS, 21 décembre, Nancy, France
Al Dakdouki, S., Nivelle, R., Ledore, Y., Changey, F., Fontaine, P.
12th International Symposium on Reproductive Physiology of Fish, 15-19 mai, Heraklion, Crète
Chevalier, C., Silvestre, F., Schaerlinger, B., Milla, S.
SETAC, 30 avril - 04 mai, Dublin, Irlande
Conseil, G., Milla, S., Cardoso, O., Rosin, C., Banas, D.
Aquaculture Europe 2023, Balanced Diversity in Aquaculture Development, 18-21 septembre, Vienne, Autriche
Diakos, E., Fontaine, P., Lecocq, T.
Aquaculture Europe 2023, 18-21 septembre, Vienna, Austria
Diakos, E., Fontaine, P., Lecocq, T.
Aquaculture Europe 2023, Balanced Diversity in Aquaculture Development, 18-21 septembre, Vienne, Autriche
Diakos, E., Pasquet, A., Hardy, A., Chevalier, C., Fontaine, P., Lecocq, T.
Avenir Maritime, 20-22 juin, Québec, Canada
Viana, J., Audet, C., Teletchea, F.
Journée ComAqua, AFSTAL, 18 octobre, Lyon, France
Ledore, Y., Thomas, M.
Séminaire annuel de la Zone Atelier Moselle, 14-15 juin, Vittel, France
Thomas, M., Lecocq, T.
Première rencontre du Réseau des Animaleries du Grand Est, 16 juin, NANCY, France
Thomas, M., Lecocq, T.
Semaine de la Recherche - Plateformes du Pôle A2F, 27 novembre, Nancy, France
Thomas, M., Milla, S.
Séminaire INRAE, Recherche Modèle Poissons, 26-27 janvier, Rennes, France
Thomas, M., Pasquet, A., Lecocq, T.
The Sustainable Animal Production Collaborative Working Group, 18-19 octobre, Bonn, Allemagne
Dumont, B., Aubin, J., Ingrand, S., Martin, G., Niderkorn, V., Puillet, L., Savietto, D., Steinmetz, L., Thomas, M.
Assises France-Québec de la mer, 13-14 juin, Nantes, France
Viana, J., Audet, C., Teletchea, F.
Aquaculture Europe, 27-30 septembre, Rimini, Italie
Aubin, J., Thomas, M., Lecocq, T., Robin, J., Dupont, C., Tocqueville, A., Laithier, J., Pannard, A., Coudreuse, J., Roucaute, M., Jaeger, C., Wilfart, A., Maillot, M., Corson, M.S.
8th international workshop on the biology of fish gametes. Gametes workshop., 20-23 septembre, Gdansk, Pologne
Ljubobratovic, U., Kitanovic, N., Milla, S., Marinovic, Z., Fazekas, G., Stanivuk, J., Zarski, D., Horvath, A.
5th International Percid Fish Symposium - Percis V, 18-23 septembre, Ceske Budejovice, Czech Republic
Senff, P., Fourrier, C., Abd Al Rahim, S., Gerard, E., Milla, S., Nivelle, R., Fontaine, P.
Aquaculture Europe 2022, 27-30 septembre, Rimini, Italy
Senff, P., Gerard, E., Polowczyk, O., Piga, V., Grosjean, J., Robin, C., Fontaine, P.
51ème colloque de la SFECA, 31 mai - 02 juin, Clermont Ferrand, France
Brunet, V., Kleiber, A., Moreau, E., Fournel, C., Pineau, L., Calvez, S., Milla, S., Colson, V.
7èmes journées de la Recherche Française Piscicole, 05-06 juillet, Paris, France
Brunet, V., Kleiber, A., Patinote, A., Sudan, P.L., Duret, C., Gourmelen, G., Moreau, M., Fournel, C., Pineau, L., Calvez, S., Milla, S., Tocqueville, A., Colson, V.
7èmes Journées de la Recherche Piscicole, 05-06 juillet, Paris, France
Fourrier, C., Changey, F., Mathieu, L., Robin, C., Levillain, A., Charpentier, N., Fontaine, P.
7èmes Journées de la Recherche Piscicole, 05-06 juillet, Paris, France
Senff, P., Gerard, E., Robin, C., Fourrier, C., Larbat, R., Abd Al Rahim, S., Piga, V., Polowczyk, O., Fontaine, P.
7èmes Journées de la Recherche de la Filière Piscicole, 05-06 juillet, Paris, France
5th International Percid Fish Symposium - Percis V, 18-23 septembre, Ceske Budejovice, République Tchèque
Fourrier, C., Senff, P., Changey, F., Mathieu, L., Abs al rahim, S., Ledore, Y., Milla, S., Charpentier, N., Fontaine, P.
7èmes Journées de la Recherche de la Filière Piscicole, 05-06 juillet, Paris, France
Jaeger, C., Roucaute, M., Wilfart, A., Latourre, Q., Maillot, M., Corson, M., Gallard, A., Joseph, B., Bennevault, Y., Coké, M., Azam, D., Thomas, M., Lecocq, T., Robin, J., Toqueville, A., Laithier, J., Pannard, J., Coudreuse, J., Aubin, J.
8e Rencontre Ichtyologique de France (RIF), 14-18 mars, Paris, France
Viana, J., Briand, E., Audet, C., Teletchea, F.
7èmes Journées de la Recherche de la Filière Piscicole, 05-06 juillet, Paris, France
Aubin, J., Thomas, M., Lecocq, T., Robin, J., Tocqueville, A., Laithier, J., Pannard, A., Coudreuse, J., Roucaute, M., Jaeger, C., Wilfart, A., Latourre, Q., Maillot, M., Corson, M.
Aquaculture Europe 2022, 27-30 septembre, Rimini, Italie
Colson, V., Brunet, V., Kleiber, A., Patinote, A., Sudan, P.L., Duret, C., Gourmelen, G., Moreau, E., Fournel, C., Pineau, L., Calvez, S., Milla, S.
Colloque annuel de la Société d’Ecotoxicologie Fondamentale et Appliquée, 30 juin - 01 juillet, Metz, France
Expertise collective de 47 chercheurs,
Journées scientifiques de la Zone Atelier Moselle (ZAM, CNRS) - édition 2022, 08-09 juin, Gérardmer, France
Conseil, G., Milla, S., Banas, D.
Aquaculture Europe 2021, 05-08 octobre, Madère, Portugal
Amoussou, N., Lecocq, T., Pasquet, A., Thomas, M.
FishBase SeaLifeBase Symposium, 30 years of FishBase – 15 years of FishBase, 06 septembre - 07 septembre, Paris, France
Chardard, D., Willig, C., Bailly, N., Atanacio, R., Fordoxcel, L., Delaunay, S., Gerard, P.-A., Teletchea, F.
1st Franco-Canadian of Aquatic Sciences, Saint-Pierre and Miquelon, 30 septembre - 03 octobre, Saint-Pierre et Miquelon, France
Detcheverry, E., Lemallier, E., Teletchea, F.
1st Franco-Canadian of Aquatic Sciences, Saint-Pierre and Miquelon, 30 septembre - 03 octobre, Saint-Pierre et Miquelon, France
Durand, E., Gustave, E., Vasconcelos, R., Perrin, L., Drogue, G., Teletchea, F.
Colloque Aquaculture Europe 2021, 04-07 octobre, Madeira, Portugal
El Mohajer, L., Chevalier, C., Fontaine, P., Milla, S.
Franco-Canadian Congress of Aquatic Sciences, 30 septembre - 03 octobre, Saint-Pierre-et-Miquelon, France
Fontaine, P.
Aquaculture Europe 2021, 05-08 octobre, Madère, Portugal
Lecocq, T., Toomey, L., Fontaine, P.
1st Franco-Canadian of Aquatic Sciences, Saint-Pierre and Miquelon, 30 septembre - 03 octobre, Saint-Pierre et Miquelon, France
Lecointre, G., Schnell, N., Teletchea, F.
Aquaculture Europe 2021, 05-08 octobre, Madère, Portugal
Senff, P., Polowczyk, O., Grosjean, J., Milla, S., Robin, C., Fontaine, P.
1st Franco-Canadian of Aquatic Sciences, Saint-Pierre and Miquelon, 30 septembre - 03 octobre, Saint-Pierre et Miquelon, France
Teletchea, F.
1st Franco-Canadian of Aquatic Sciences, Saint-Pierre and Miquelon, 30 septembre - 03 octobre, Saint-Pierre et Miquelon, France
Teletchea, F.
FishBase SeaLifeBase Symposium, 30 years of FishBase – 15 years of FishBase, 06-07 septembre, Paris, France
Teletchea, F., Union des conservateurs d'aquariums, Barthelemy, D.
1st Franco-Canadian of Aquatic Sciences, Saint-Pierre and Miquelon, 30 septembre - 03 octobre, Saint-Pierre et Miquelon, France
Teletchea, S., Venturelli, P., Teletchea, F.
1st Franco-Canadian of Aquatic Sciences, Saint-Pierre and Miquelon, 30 septembre - 03 octobre, Saint-Pierre et Miquelon, France
Viana, J., Briand, E., Gustave, E., Perrin, L., Vasconcelos, R., Audet, C., Teletchea, F.
1er Congrès International des Sciences Aquatiques de Saint-Pierre et Miquelon, 30 septembre - 05 juin, Saint-Pierre et Miquelon, France
Viana, J., Briand, E., Perrin, L., Gustave, E., Audet, C., Teletchea, F.
1st Franco-Canadian of Aquatic Sciences, Saint-Pierre and Miquelon, 14-17 juin, Québec, Canada
Detcheverry, E., Lemallier, E., Teletchea, F.
Réunion annuelle de Ressources Aquatiques Québec (RAQ), 23 novembre - 24 octobre, Québec, Canada
Viana, J.
Premier salon de l’aquaponie, 09-10 octobre, Louverné, France
Teletchea, F.
Francoforum, 15 février, Saint-Pierre, Saint-Pierre et Miquelon
Teletchea, F.
Internal Meeting at the Fisheries Institute, 18 février, Saint-John's (NFLD), Canada
Teletchea, F.
Aquaexcel Training Course: Laboratory Animal Science for Aquatic Research Facilities, 19-20 juin, Bergen, Norway
Milla, S.
Conférence économique. Entreprendre à Saint-Pierre à Miquelon : de nouvelles perspectives de développement., 04 octobre, Issy-Les-Moulineaux, France
Teletchea, F.
Réunion Scientifique de l’équipe Homologie du MNHN, 29-30 janvier, Concarneau, France
Teletchea, F.
17th FishBase Symposium, 09 septembre - 10 septembre, Perth, Australie
Teletchea, F., Barthélémy, D.
3th international conference on fish and shellfish immunology, 16-20 juin, Las Palmas, Spain
Baekelandt, S., Milla, S., Cornet, V., Flamion, E., Ledore, Y., Redivo, B., Antipine, S., Mandiki, S.N.M., El Kertaoui, N., Schmitz, M., Kestemont, P.
3rd Summer Shoal 2019 on Fish Ethology & Welfare, 10 septembre - 13 novembre, Algarve, Portugal
Colchen, T., Teletchea, F., Ysnel, F., Carpentier, A., Trancart, T., Feunteun, E., Fontaine, P., Pasquet, A.
EAS Aquaculture Europe, 07-10 octobre, Berlin, Allemagne
El Mohajer, L., Selmi, S., Fontaine, P., Milla, S.
43rd larval fish conference, 21-24 juin, Mallorca, Espagne
Teletchea, F., Schnell, N., Lecointre, G.
European Aquaculture, 07-11 octobre, Berlin, Allemagne
Thomas, M., Pasquet, A., Ledore, Y., Schaeffer, L., Nahon, S., Aubin, J., Jaeger, C., Wilfart, A., Benard, A., Lecocq, T.
XVI European Congress of Ichthyology, Lausanne, Switzerland, 2 Sep - 6 Sep
Toomey, L., Fontaine, P., Lecocq, T.
9th Biennial Conference of the International Biogeography Society, 08-12 janvier, Malaga, Espagne
Toomey, L., Pasquet, A., Teletchea, F., Fontaine, P., Lecocq, T.
Aquaculture Europe 2019, 07-10 octobre, Berlin, Allemagne
Zarski, D., Bernath, G., Ben Ammar, I., Mandiki, S.N.M., Baekelandt, S., Bokor, Z., Fontaine, P., Horvath, A., Kestemont, P.
Aquaculture Europe 2019, 07-10 octobre, Berlin, Allemagne
Zarski, D., Le Cam, A., Nynca, J., Klopp, C., Montfort, J., Fontaine, P., Ciereszko, A., Bobe, J.
7th International workshop of the biology of fish gametes, 02-06 septembre, Rennes, France
Zarski, D., Nynca, J., Le Cam, A., Klopp, C., Montfort, J., Fontaine, P., Ciereszko, A., Bobe, J.
Séminaire Défis Scientifiques du Département Physiologie Animale et Système d’Elevage, INRA, 06-07 novembre, Rennes, France
Dumont, B., Aubin, J., Ingrand, S., Martin, G., Niderkorn, V., Puillet, L., Savietto, D., Steinmetz, L., Thomas, M.
6èmes Journées de la Recherche Piscicole, 02-03 juillet, Paris, France
Fontaine, P., Krauss, D., Ledore, Y., Colchen, T., Pasquet, A.
Séminaire de la Société Française d’Ichtyologie, 28-29 mai, Nancy, France
Milla, S.
7. International Workshop on the Biology of Fish Gametes, 02-06 septembre, Rennes, France
Rocha De Almeida, T., Bobe, J., Le Cam, A., Klopp, C., Montfort, J., Fontaine, P., Chardard, D., Schaerlinger, B.
Séminaire de la Société Française d’Ichtyologie, 28-29 mai, Nancy, France
Thomas, M., Lecocq, T., Ledore, Y., Nahon, S., Benard, A., Pasquet, A.
Journée de la Société Française d’Icthyologie, 28-29 mai, Nancy, France
Aubert, M., Chancerelle, G., Dauphin, L., Enguehard, V., Girot, F., Hachet, F., Husson, A., Lemallier, E., Martins, A., Rech, G., Vigouroux, E., Teletchea, F., Winkelmann, A.
Journée de la Société Française d’Icthyologie, 28-29 mai, Nancy, France
Rech, G., Teletchea, F., Vigouroux, E.
Séminaire Défis Scientifiques, Département Physiologie Animale et Système d’Elevage, INRA, 06-07 novembre, Rennes, France
Toomey, L., Aubin, J., Benard, A., Fontaine, P., Jaeger, C., Lecocq, T., Ledore, Y., Nahon, S., Pasquet, A., Puillet, L., Thomas, M., Wilfart, A.
Lions club Stanislas Doyen de Nancy, 21 octobre, Nancy, France
Krauss, D.
Séminaire Agrovalor, 29 novembre -, Nancy, France
Krauss, D., Milla, S., Fontaine, P.
Rencontre URAFPA-FIPERJ (Fondation Institut des Pêches de Rio de Janeiro), 02 juillet, Nancy, France
Milla, S.
Formation Maître d'expérience, 04 avril, Namur, Belgique
Milla, S.
Conférences et table-ronde Auditorium du Pôle Média-Culture, 16 mai, Colmar, France
Teletchea, F.
Nancy Jardin Botanique, 20 juin, Nancy, France
Teletchea, F.
Nancy Jardin Botanique, 13 juin, Nancy, France
Teletchea, F.
Séminaire interne à l’équipe Domestication en aquaculture continentale, 11 janvier, Nancy, France
Teletchea, F.
Internal Meeting at the Fisheries Institute, 18 octobre, Saint-John's (NFLD), Canada
Teletchea, F.
Centre Culturel de Saint-Pierre, 12 avril, Saint-Pierre, Saint-Pierre et Miquelon
Teletchea, F.
Séminaire interlaboratoires Université de Lorraine, 29 mai, Nancy, France
Thomas, M., Lecocq, T., Ledore, Y., Pasquet, A., Fontaine, P.
Séminaire SIReNa - Science et Territoire : vers une nouvelle économie, 07 février, Nancy, France
Toomey, L., Lecocq, T., Fontaine P.
Eler amorim dias, G., Ledore, Y., Gasmi, S., Pasquet, A., Fontaine, P.
Contrat SARL Rafidin
Ledore, Y., Milla, S., Fontaine, P.
Séminaire Agrovalor « Résilience des Systèmes de Production », 9 décembre, Nancy, France
Fontaine, P.
Fontaine, P.
Fontaine, P.
Fontaine, P.
Fontaine, P.
Lecocq, T., Pasquet, A., Bernard, A., Thomas, M.
Hardy, A.; Pasquet. A.; Diakos, E., Lecocq, T.
Praion, M.
Amoussou, N., Lecocq, T., Thomas, M.
El Mohajer, L.
Bled, A., Pasquet, A., Lecocq, T.
Hardy, A., Lecocq, T., Pasquet, A., Thomas, M.
Butruille, G., Thomas, M., Lecocq, T.
Chevalier, C.
El manfaloti, M.A., Thomas, M., Pasquet, A., Lecocq, T.
Toomey, L., Fontaine, P., Lecocq, T.
Bulteau, R.
Gouret, M., Toomey, L., Pasquet, A., Lecocq, T.
Reynaud, J-G., Lecocq, T., Pasquet, A., Thomas, M.
Schaeffer, L., Lecocq, T., Pasquet, A., Thomas, M.
Speder, K., Toomey, L., Lecocq, T.