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5th International Workshop on the Biology of Fish Gametes, 07-11 septembre, Ancone, Italie
Schaerlinger, B., Staub, C., Touze, J.-L., Chardard, D., Krauss, D., Ledore, Y., Alix, M., Fontaine, P.
2015
INTRODUCTION
Among the temperate freshwater fish species, the flesh of percids is very appreciated by consumers. As a consequence percid breeding becomes an interesting market and several fish farming focus on pike-perch and Eurasian perch production. Perch reproduction cycle last for 9 months and is under the control of the temperature and the photoperiod (Abdulfatah et al., 2011). Even if female oogenesis is induced, the reproduction success remains variable. In addition, as for many fish species, there is no sexual dimorphism for the Eurasian perch. As a consequence, scientific studies investigating either oogenesis or reproduction success and fish farmers wishing to check perch oogenesis need to sample some fish in their tank. This is also true with other fish species. In order to find a way to make early sex determination and check oogenesis process, we used ultrasonography on perch. This technique as used with success with several other fish species (for review Novelo and Tierch 2012) to study oogenesis process. This technique has the advantage to be non invasive and to allow accurate study of fish gonadogenesis. The present study aimed at presenting first data obtained to (i) to determine the sex of Eurasian perch individuals, (ii) to define correlations between parameters obtained using ultrasonography and regular methods and (iii) to predict potential egg quality.
MATERIALS AND METHODS
Two populations of Eurasian perch (wild and domesticated) were used in this study and all individuals had been furnished by the fishfarm “Lucas Perches” (Hampont, France). In total, around 300 fish have been reared in our facilities from the larval stages. Their reproduction was induced using a photo-thermo-periodic program previously developed in our laboratory (Abdulfatah et al., 2011). Three and five months after the beginning of the induction, ultrasonography experiments have been performed to study fish gonadogenesis on a sample of 30 females. Experiments have been performed using a MyLab30 Vet gold apparatus (Esaote-Piemedical) using a LA332 probe (Hospimedi France) 3-10 Mhz. The frequency was low (6 MHz) to allow a penetration of the sound waves for at least 5 cm. The area and the perimeters of the gonads were measured on ultrasonography picture. Every fish was put to death, weight and measured. Their gonads were dissected, weighted, photographed and fixed in Bouin’s solution to perform histological studies. The gonado-somatic index was calculated and a comparison of data obtained with the two techniques.
RESULTS
The experiment was first performed three months after the beginning of the induction. It appeared that the sex determination was already possible at that time with an accuracy of around 94 %. Two months later we almost obtained 99% of success. The ovaries appeared as mass punctuated by light dots corresponding to the oocytes. On the contrary, testes were less evident to discern and appeared mainly as two black lobes separated by a white line.
We measured the ovary area and perimeter for 30 females by ultrasonography and compared it with the gonad weight and the GSI. It appears that these parameters are poorly correlated indicating that we need to accumulate other information to better evaluate oogenesis progression.
Finally, we observed on the echography pictures several pockets of liquid for some fish. These observations were confirmed after dissection and were not present for every fish. Moreover, the egg density in the ovary was also observed and showed that it was not homogenous in every case. Finally, we observed a scale from white to dark gray colors for the oocytes, suggesting that the lipid content may be variable between oocytes. Indeed the gray scale obtained depends on the lipid/water relative composition. These information are important because it could preset reproduction impairment. Indeed, the accumulation of lipid is one of the key elements to confer a good quality to the ova.
DISCUSSION AND CONCLUSIONS
Several studies investigated the possibility to identify the sex of fish that don’t present any external sexual dimorphism. For the Eurasian perch this determination was successful 3 months after the beginning of the gonadogenesis as observed in other studies (Novelo and Tierch 2012). However, our measurements failed to characterize efficiently the oogenesis progression. In other studies, several calculations were proposed to make this characterization (Novelo and Tierch 2012). Those reproductive indexes all seem reliable but a comparative study needs to be performed to better characterize them. Finally, few studies tried to find criteria presetting ova quality and reproduction success. We observed that the internal organization of the ovary (liquid pocket formation, oocytes density) and the oocyte lipid/water content may be easily observable. The comparison with histological study of the gonads (still under investigation) will help us to better characterize this point. Ultrasonography appears as new methodology to study fish gonadogenesis because it is non-invasive and easy to perform. This new approach already gives good results for sex identification, it also opens new avenue o research especially for the early determination of ova quality.
AKNOWLEDGEMENTS
This work was supported by Research Ministry (PhD fellowship of M.A.), INRA Department PHASE and the Lorraine region.
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2ème conférence USSEC pour la production d'aliments et de poissons, 15-16 mai, Mdiq, Maroc
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AQUA2024, 26-30 août, Copenhague, Denmark
Lecocq, T., Aubin, J., Thomas, M.
3nd Joint Congress on Evolutionary Biology, 26-30 juillet, Montréal, Canada
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
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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.