Rezultaty
A key requisite to implement important project findings into real life fishery management and conservation is to gain knowledge and understanding on how key stakeholders assess the overall findings and recommendations from the project, especially the recommended “paradigm shift” in fish cultivation practices compared to current practices and established historic traditions. Further, it is necessary to evaluate the potential economic benefits of successful restoration and conservation of these iconic species to design economically efficient and socially acceptable programs. We will study how key stakeholders in fishery management, conservation, stocking and angling activities assess and make trade-offs between pros and cons of existing and new production techniques. Further, we will map and quantify the potential economic and social benefits (individual, social/cultural, and economic) of successful restoration and conservation of iconic species Atlantic salmon, European eel, and sturgeon at the level of local communities in Germany, France and Norway.
Innovative production strategies for fish conservation and managementIn response to the dramatic decline in wild stocks of many of the world´s fish species, many attempts have been made to bolster declining stocks by releasing hatchery-reared juveniles back into the wild. However, current intensive hatchery procedures result in behaviourally naive juveniles which display physiological adaptations towards hatchery rearing conditions. These production deficiencies results in reduced survival and reproduction in the wild, and adapted rearing practices are required to increase the overall fitness under natural conditions instead of a focus on performance in a near constant commercial rearing environment. New production protocols will be designed that will increase the cognitive ability and physiological capabilities of fish as compared to those raised under traditional intensive hatchery conditions. This calls for a paradigm shift in hatchery management, moving away from traditional husbandry practices to new hatchery procedures (optimal stocking density, adapted fertilization strategies, environmental enrichment, variable feeding, variable physical parameters such as flow rate, direction of flow, temperature) aimed at increasing the physiological fitness and cognitive ability of raised fish, which in turn leads to increased post-release survival (stock enhancement), as well as improved release strategies.
Improved Broodstock ManagementBroodstock management involves all the appropriate measures taken by the farmer to enable a captive group of fish to undergo reproductive maturation and spawning. Currently, hormonal manipulation is commonly used as a management tool in the cultivation of the targeted species (eel, salmon and sturgeons), either to enhance the efficiency of egg production or to increase spermiation, both facilitating hatchery operations. We will set up new protocols for both gamete development and spawning induction of broodstock, through development of alternative treatments (including environmental changes like photoperiod or temperature, or gonadotropin usage (homologous pituitary hormones, recombinant hormones, neuropeptides) for inducing gamete production.
Improved Gamete Quality and ManagementEuropean eel and sturgeons are included in the IUCN as Critically Endangered species. To reduce fishing pressure, and the dependency of this industry on wild populations, and also for stocking purposes, it is important to successfully close the life-cycle of the eel in captivity. Improved gamete quality and management will also benefit production of wildtype conditioned sturgeon and salmon. At present, it is possible to obtain eel eggs or sperm for in vitro fertilization, but only after and very expensive hormonal treatments. Using environmental treatments or gonadotropin implants we plan to reduce or partially replace the standard hormonal treatments currently used to achieve sexual maturation, as well as obtaining a better gamete quality. Furthermore, there is a need to keep good quality sperm reserves in order to fertilize all the eggs when a good batch is obtained. Thus, short-term preservation and cryopreservation methods are required. Utilization of innovative transplantation techniques can help the development of gametes extracted from endangered species using more common species (shorter age of maturation) as the surrogate host. Furthermore, the use of germ cells for the creation of germline chimera is an expansion of this technique for application in cryopreservation platforms aimed at conservation of threatened genetic resources.
New in vitro and –omics technologiesThe complete genome sequence of Acipenser sturio will be mapped using an established de novo assembly pipeline and multiple tissue samples will be used to generate reference transcriptome profiles. Subsequently, these genomic resources will be used to develop new applications: (1) blood and fin clip samples obtained during artificial maturation trials will be used to generate minimally invasive maturation markers, the predictive value of which will be determined in a dedicated validation trial; (2) modified gonadotropins and neuronal signaling molecules will be designed for optimized artificial maturation of A. sturio; (3) molecular information about hormones and their receptors will allow the development of in vitro model systems for regulatory mechanism investigations, for alternatives to in vivo experiments and for reduction of number of animals used.
An Impress website will be set up for efficient communication of results and activities to the public to the scientific community and between the consortium members
Publikacje
Autorzy:
Svetlana Yom-Din, Lian Hollander-Cohen, Joseph Aizen, Benjamin Boehm, Michal Shpilman, Matan Golan, Avshalom Hurvitz, Gad Degani, Berta Levavi-Sivan
Opublikowane w:
PLOS ONE, Numer 11/9, 2016, Strona(/y) e0162344, ISSN 1932-6203
Wydawca:
Public Library of Science
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10.1371/journal.pone.0162344
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Marina Morini, David S. Peñaranda, María C. Vílchez, Rasoul Nourizadeh-Lillabadi, Anne-Gaëlle Lafont, Sylvie Dufour, Juan F. Asturiano, Finn-Arne Weltzien, Luz Pérez
Opublikowane w:
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, Numer 207, 2017, Strona(/y) 79-92, ISSN 1095-6433
Wydawca:
Elsevier BV
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10.1016/j.cbpa.2017.02.009
Autorzy:
Hans J. Jansen, Michael Liem, Susanne A. Jong-Raadsen, Sylvie Dufour, Finn-Arne Weltzien, William Swinkels, Alex Koelewijn, Arjan P. Palstra, Bernd Pelster, Herman P. Spaink, Guido E. van den Thillart, Ron P. Dirks, Christiaan V. Henkel
Opublikowane w:
Scientific Reports, Numer 7/1, 2017, ISSN 2045-2322
Wydawca:
Nature Publishing Group
DOI:
10.1038/s41598-017-07650-6
Autorzy:
Juan G. Herranz-Jusdado, Eszter Kása, Tímea Kollár, Víctor Gallego, David S. Peñaranda, Christoffer Rozenfeld, Luz Pérez, Ákos Horváth, Juan F. Asturiano
Opublikowane w:
Journal of Visualized Experiments, Numer 131, 2018, ISSN 1940-087X
Wydawca:
MYJoVE Corporation
DOI:
10.3791/56835
Autorzy:
Marina Morini, David S. Peñaranda, M. Carmen Vílchez, Helge Tveiten, Anne-Gaëlle Lafont, Sylvie Dufour, Luz Pérez, Juan F. Asturiano
Opublikowane w:
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, Numer 203, 2017, Strona(/y) 91-99, ISSN 1095-6433
Wydawca:
Elsevier BV
DOI:
10.1016/j.cbpa.2016.08.020
Autorzy:
D.S. Peñaranda, V. Gallego, C. Rozenfeld, J.G. Herranz-Jusdado, L. Pérez, A. Gómez, I. Giménez, J.F. Asturiano
Opublikowane w:
Theriogenology, Numer 107, 2018, Strona(/y) 6-20, ISSN 0093-691X
Wydawca:
Elsevier BV
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10.1016/j.theriogenology.2017.11.002
Autorzy:
Hannah L. Harrison, Stine Rybråten, Øystein Aas
Opublikowane w:
Human Ecology, Numer 46/4, 2018, Strona(/y) 449-459, ISSN 0300-7839
Wydawca:
Springer
DOI:
10.1007/s10745-018-0001-3
Autorzy:
Hannah L. Harrison, Sophia Kochalski, Robert Arlinghaus, Øystein Aas
Opublikowane w:
Fisheries Research, Numer 204, 2018, Strona(/y) 348-360, ISSN 0165-7836
Wydawca:
Elsevier BV
DOI:
10.1016/j.fishres.2018.02.022
Autorzy:
Carina Caldeira, Almudena García-Molina, Anthony Valverde, Daznia Bompart, Megan Hassane, Patrick Martin, Carles Soler
Opublikowane w:
Reproduction, Fertility and Development, Numer 30/6, 2018, Strona(/y) 897, ISSN 1031-3613
Wydawca:
Commonwealth Scientific and Industrial Research Organization Publishing
DOI:
10.1071/RD17466
Autorzy:
Daznia Bompart, Almudena García-Molina, Anthony Valverde, Carina Caldeira, Jesús Yániz, Manuel Núñez de Murga, Carles Soler
Opublikowane w:
Reproduction, Fertility and Development, Numer 30/6, 2018, Strona(/y) 810, ISSN 1031-3613
Wydawca:
Commonwealth Scientific and Industrial Research Organization Publishing
DOI:
10.1071/RD17551
Autorzy:
V. Gallego, J. G. Herranz-Jusdado, C. Rozenfeld, L. Pérez, Juan F. Asturiano
Opublikowane w:
Fish Physiology and Biochemistry, Numer 17 Apr, 2018, Strona(/y) 1457–1467, ISSN 0920-1742
Wydawca:
Kluwer Academic Publishers
DOI:
10.1007/s10695-018-0505-1
Autorzy:
Aurora Campo, Anne-Gaëlle Lafont, Benjamin Lefranc, Jérôme Leprince, Hervé Tostivint, Nédia Kamech, Sylvie Dufour, Karine Rousseau
Opublikowane w:
Frontiers in Endocrinology, Numer 9, 2018, Strona(/y) 304, ISSN 1664-2392
Wydawca:
Frontiers
DOI:
10.3389/fendo.2018.00304
Autorzy:
Carina Caldeira, Carles Soler
Opublikowane w:
Journal of Visualized Experiments, Numer 137, 2018, ISSN 1940-087X
Wydawca:
MYJoVE Corporation
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10.3791/56823
Autorzy:
Sophia Kochalski, Carsten Riepe, Marie Fujitani, Øystein Aas, Robert Arlinghaus
Opublikowane w:
Conservation Biology, 2018, ISSN 0888-8892
Wydawca:
Blackwell Publishing Inc.
DOI:
10.1111/cobi.13180
Autorzy:
Daan Mes, Kristine von Krogh, Marnix Gorissen, Ian Mayer, Marco A. Vindas
Opublikowane w:
Frontiers in Behavioral Neuroscience, Numer 12, 2018, ISSN 1662-5153
Wydawca:
Frontiers Research Foundation
DOI:
10.3389/fnbeh.2018.00210
Autorzy:
Anthony Valverde, Mónica Madrigal, Carina Caldeira, Daznia Bompart, Javier Núñez de Murga, Sandra Arnau, Carles Soler
Opublikowane w:
Reproduction in Domestic Animals, 2018, ISSN 0936-6768
Wydawca:
Blackwell Publishing Inc.
DOI:
10.1111/rda.13320
Autorzy:
J.G. Herranz-Jusdado, V. Gallego, M. Morini, C. Rozenfeld, L. Pérez, E. Kása, T. Kollár, A. Depincé, C. Labbé, Á. Horváth, J.F. Asturiano
Opublikowane w:
Aquaculture, Numer 498, 2019, Strona(/y) 539-544, ISSN 0044-8486
Wydawca:
Elsevier BV
DOI:
10.1016/j.aquaculture.2018.09.006
Autorzy:
Aydee Meza, Carina Caldeira, Anthony Valverde, César Ordóñez, Enrique Ampuero, Hernán Cucho, Carles Soler
Opublikowane w:
Reproduction in Domestic Animals, Numer 53/6, 2018, Strona(/y) 1415-1423, ISSN 0936-6768
Wydawca:
Blackwell Publishing Inc.
DOI:
10.1111/rda.13284
Autorzy:
Sahana Shivaramu, Carlos E. Santo, Vojtěch Kašpar, David Bierbach, Jörn Gessner, Marek Rodina, David Gela, Martin Flajšhans, Sven Wuertz
Opublikowane w:
Journal of Applied Ichthyology, 2018, ISSN 0175-8659
Wydawca:
Blackwell Publishing Inc.
DOI:
10.1111/jai.13834
Autorzy:
J.G. Herranz-Jusdado, C. Rozenfeld, M. Morini, L. Pérez, J.F. Asturiano, V. Gallego
Opublikowane w:
Aquaculture, Numer 501, 2019, Strona(/y) 527-536, ISSN 0044-8486
Wydawca:
Elsevier BV
DOI:
10.1016/j.aquaculture.2018.12.015
Autorzy:
Maria Cámara-Ruiz, Carlos Espirito Santo, Joern Gessner, Sven Wuertz
Opublikowane w:
Aquaculture, Numer 502, 2019, Strona(/y) 12-17, ISSN 0044-8486
Wydawca:
Elsevier BV
DOI:
10.1016/j.aquaculture.2018.12.021
Autorzy:
J.G. Herranz-Jusdado, V. Gallego, C. Rozenfeld, M. Morini, L. Pérez, J.F. Asturiano
Opublikowane w:
Aquaculture, Numer 506, 2019, Strona(/y) 42-50, ISSN 0044-8486
Wydawca:
Elsevier BV
DOI:
10.1016/j.aquaculture.2019.03.019
Autorzy:
Carina Caldeira, Sandra Hernández-Ibáñez, Anthony Valverde, Patrick Martin, Juan G. Herranz-Jusdado, Víctor Gallego, Juan F. Asturiano, Borys Dzyuba, Martin Pšenička, Carles Soler
Opublikowane w:
Aquaculture, Numer 502, 2019, Strona(/y) 223-231, ISSN 0044-8486
Wydawca:
Elsevier BV
DOI:
10.1016/j.aquaculture.2018.12.001
Autorzy:
S. Shivaramu, D.T. Vuong, M. Havelka, H. Šachlová, I. Lebeda, V. Kašpar, M. Flajšhans
Opublikowane w:
Czech Journal of Animal Science, Numer 64/No. 2, 2019, Strona(/y) 78-88, ISSN 1212-1819
Wydawca:
Ceska Akademie Zemedelskych Ved
DOI:
10.17221/165/2018-cjas
Autorzy:
Mitchell S. Fleming, Gersende Maugars, Anne-Gaëlle Lafont, Jocelyn Rancon, Romain Fontaine, Rasoul Nourizadeh-Lillabadi, Finn-Arne Weltzien, Elena Santidrian Yebra-Pimentel, Ron Dirks, Stephen D. McCormick, Karine Rousseau, Patrick Martin, Sylvie Dufour
Opublikowane w:
Scientific Reports, Numer 9/1, 2019, ISSN 2045-2322
Wydawca:
Nature Publishing Group
DOI:
10.1038/s41598-019-40019-5
Autorzy:
Elena Santidrián Yebra-Pimentel, Marina Gebert, Hans J. Jansen, Susanne A. Jong-Raadsen, Ron P.H. Dirks
Opublikowane w:
Fish & Shellfish Immunology, Numer 88, 2019, Strona(/y) 508-517, ISSN 1050-4648
Wydawca:
Academic Press
DOI:
10.1016/j.fsi.2019.03.014
Autorzy:
Sophia Kochalski
Opublikowane w:
2017
Wydawca:
University of Liverpool
Autorzy:
Daan Mes
Opublikowane w:
2018, ISBN 978-82-575-1766-3
Wydawca:
Norwegian University of Life Sciences (PhD thesis 2018:80)
Autorzy:
Elia Ciani
Opublikowane w:
2018, ISBN 978-82-575-1770-0
Wydawca:
Norwegian University of Life Sciences (PhD thesis 2018:105)
Autorzy:
Hannah Harrison
Opublikowane w:
2018, ISBN 978-82-575-1544-7
Wydawca:
Norwegian University of Life Sciences (2018:76)
Autorzy:
Aurora Campo
Opublikowane w:
2018
Wydawca:
Museum National d' Historie Naturelle
Autorzy:
Mitchell S. Fleming
Opublikowane w:
2018
Wydawca:
Museum National d' Historie Naturelle
Autorzy:
H Harrison, D Mees, M Fleming, and all IMPRESS students
Opublikowane w:
Euroscientist, 2016
Wydawca:
Euroscience
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