Sunday, 11th October 2026
Registration
Welcome reception
Monday, 12th October 2026
Registration desk is open
Dr. Tamás Müller
When sperm waits in the ovary: Ovarian insemination as a novel propagation method for externally fertilising fish | Plenary lecture
Session 1 - Oocyte biology, gamete compatibility and fertilisation
Chairs: Catherine Labbé and Daniel Żarski
Uroš Ljubobratović
Does nest mating make gametes match?
Olga Bondarenko
Beyond water activation: Membrane permeability and the hidden vulnerability of fish reproduction
Coffee break
Aarón Torres Martínez
Morphological and molecular signatures of ovarian ageing in zebrafish
Buumba Hampuwo (student)
Environmentally relevant concentrations of microplastics translocate into gametes in a sex-specific manner, altering their physiology without impairing mean reproductive output in brown trout
Elvira Fatsini
Culture environment influences gonadal reproductive pathways in Mugil cephalus
Tomáš Tichopád
Why triploid zebrafish refuse to become female: Rewiring of hormonal control in sex differentiation
Yihui Mei (student)
Gamete ploidy engineering overcomes inter-family reproductive isolation in teleost fish
Lunch
Session 2 - Germline development and sex differentiation
Chairs: Uroš Ljubobratović and Oliana Carnevali
Roman Franek
Temporal redistribution of germline proliferation links developmental timing to life-history strategy in annual killifish
Xiaojuan Cao
Cdk1 deficiency triggers premeiotic endoreplication and unreduced sperm formation via the Cdk2/Ccne1–Fzr1a pathway in loach
Essaikiammal Konar
Young gonadal environment reverses male reproductive ageing
Toshiya Nishimura
Functional analysis of DND1 and NANOS3 domains during primordial germ cell-like cell induction in medaka
Coffee break
Martin Pšenička
Sturgeon embryos as a model for germline specification: Mitochondrial contributions and evolutionary insights
Taishi Shimabukuro (student)
Identification of downstream factors of DND1 and NANOS3 involved in PGC formation using TRIBE
Moe Takeuchi
Germ cells derived from haploids undergo genome doubling during the stem cell-like division phase in medaka
Juan F. Asturiano
Trials for the in vitro maturation of small-spotted Catshark oocytes
Poster Session
Tuesday, 13th October 2026
Registration desk is open
Dr. Ozren Bogdanović
Totipotency without a clean slate: epigenome dynamics across the teleost life cycle - Plenary lecture
Session 3 - Omics and molecular profiling in fish reproduction
Chairs: Rüdiger Schulz and Vanesa Robles Rodríguez
Ignacio Fernandez
REPHEAT project: Multi-omic approaches to unveil potential transgenerational effects and mechanisms of climate change in Oncorhynchus mykiss
Rafael Nobrega
Single-cell transcriptomic atlas reveals an interplay between germ cells and the immune system during the resumption of spermatogenesis in adult zebrafish
Coffee break
László Orbán
The male-to-female transformation process begins with a return to a near-undifferentiated transcriptomic state in the gonad of the protandrous Asian seabass
Emilia Arim-Galiano (student)
Thyrotropin-releasing hormone receptor as a key driver of sexual fate
Daniel Żarski
Ovulation-driven transcriptomic reorganisation defines maternal RNA provisioning in pikeperch oocytes
Joanna Nynca
Transcriptomic and proteomic signatures of early in vivo post-ovulatory ageing in pikeperch eggs
Sonali Kaththriarachchi (student)
Combined physicochemical and proteomic profiling identifies biochemical associations of oocyte quality and fertilisation outcome in Atlantic salmon
Lunch
Session 4 - Spermatogenesis and germline cell technologies
Chairs: Zoran Marinović and Martin Pšenička
Alex Kojo Datsomor
Development of an in vitro culture system for Atlantic salmon germ-cell propagation, transplantation and genetic manipulation
Marta Lombó Alonso
Short-chain fatty acids as guardians of fish spermatogenesis
Zoran Marinović
Utilisation of microfluidics for the successful enrichment of spermatogonial stem cells
Rüdiger Schulz
Photoperiod and feeding alter the timing and incidence of entering pubertal spermatogenesis in Atlantic salmon grilse
Coffee break
Sheyda Shapouri (student)
Direct evidence of the phagocytic properties of in vitro cultured zebrafish Sertoli cells toward spermatogonia
Anna Majewska
Temperature-dependent regulation of Secreted Novel AID/APOBEC-like deaminases in common carp gonads
Olivér Máté Szabó (student)
An accelerated selection method yields a pigment-deficient transgenic reporter line in zebrafish to study gonadal transformation
Poster Session
Wednesday, 14th October 2026
Registration desk is open
Dr. Rosana Estevez
Scaling up Atlantic salmon sperm cryopreservation: from research-scale trials to commercial hatchery production - Plenary lecture
Session 5 - Spermatology
Chairs: Rafael Nóbrega and Joanna Nynca
Serhii Boryshpolets
Restoring the biological meaning of CASA parameters using high-frame-rate sperm tracking
Leonor Ferrão
What defines high- and low-quality sperm samples? An integrative analysis in the European eel
Coffee break
Vitaliy Kholodnyy
Ovarian fluid enhances sperm performance but shows species-specific effects across native and introduced salmonids in Japan
Laurine Mueni
Rheological properties of fertilisation media shape sperm motility, interaction behaviours and diversification across fertilisation strategies
Zhijun Ma
Effects of short-term storage on sperm quality and epigenetic modifications in common carp
Gregory Brayan Valdivia Gutiérrez
Post-mortem sperm kinetics in jundiá: Establishing collection windows based on rigor mortis progression
Sylwia Wałdowska
Post-thaw sperm storage as a tool for identifying paternal-effect genes in Eurasian perch
Lunch
Session 6 - Aquatic germplasm conservation
Chairs: Juan F. Asturiano and Elsa Cabrita
Ákos Horváth
Is post-thaw agglutination really a problem in common carp sperm cryopreservation?
Irene Martí Gil
Connecting continents through aquatic germplasm: The AGGRC mission in a global context
Jhony Lisboa Benato
Democratising access to cryopreservation technologies: A South American perspective on open-hardware solutions
Anatolii Sotnikov
Scalable large-volume cryopreservation of fish sperm using simplified hypotonic media
Coffee break
Danilo Streit Jr
Sperm cryopreservation protocols in Serrasalmidae, the main South American native aquaculture group: A systematic review
Maria Mafalda Almeida
Robust maintenance of the paternal methylome following sperm cryopreservation and its transmission to early embryos in common carp
Closing remarks
Gala dinner
List of posters
Marina Morini
Environmental stress sensing through TRPV channels in Magallana gigas gonads under a realistic scenario: silver exposure and thermal anomalies
Eduardo Sanches
induced reproduction on nile tilapia using different hormones
Konrad Pomianowski
Melatonin and AFMK in plasma, ovarian fluid, and eggs during reproduction in farmed rainbow trout: an antioxidant role
Denise Vizziano-Cantonnet
Ancestral signals of sex: early male gene emergence in sturgeon development
Mariola Dietrich
Isolation and proteomic characterization of extracellular vesicles from carp (Cyprinus Carpio) seminal plasma
Md Sabbir Hossain
Short-term preservation techniques for zebrafish (Danio Rerio h.) sperm
Mohammad Rashed
CRISPR/Cas9-Mediated knockout of the sperm-specific CNGK channel to investigate its role in zebrafish sperm motility and fertility
Thales França
Improving european eel sperm preservation with a new extender
Thales França
Successful use of seminal plasma as extender during european sea bass sperm short and long-term storage
Luciana Ganeco-Kirschnik
Large-scale assisted fertilization for tambaqui (Colossoma macropomum) using cryopreserved semen in a breeding improvement program
Ami Aita
Post-ovulatory assembly of germ plasm reveals a distinct mechanism of germ plasm formation in medaka (Oryzias latipes)
Leonardo Alencar
Influence of broodstock origin on post-thaw sperm quality of Pogonias courbina
Yaiza Fernández Jorreto
Spermatozoa morphology in mediterranean elasmobranchs
João Ferreira
Establishment of a 3D testicular organoid system using aggrewell as a novel tool to study spermatogenesis in fish
Fernanda O'Sullivan
Spermatogenesis of an ancient fish: preliminary results from Arapaima gigas
Arpit Sivchandan
Cellular and Molecular Aspects of Testis Regeneration in Zebrafish.
Rafael Nobrega
In vivo pharmacological modulation of Notch signaling in the testes of teleost fish
Rafael Nobrega
Seeing beyond the slice: Machine learning approaches for sertoli and spermatogonial stem cell detection and quantification in 3D imaging of zebrafish testes
Yaiza Fernández Jorreto
Reproductive cycle of scyliorhinus canicula in the western mediterranean sea: What we know
Mykauana Alves Vila Nova
Preliminar transcriptomic characterization of testicular single nuclei of the Neotropical Brycon amazonicus
Catherine Labbé
Extracellular vesicles in trout seminal plasma: preparation and preliminary proteomic features
Gregory Brayan Valdivia Gutiérrez
Does sequential cryopreservation of spermatozoa in f0 and f1 compromise reproductive performance in a neotropical catfish?
Danilo Streit Jr
Post-mortem sperm cryopreservation in the endangered groovebelly stingray (Dasyatis hypostigma)
Jhony Lisboa Benato
Sperm cryopreservation does not alter larval or juvenile behavior in Rhamdia quelen
Elsa Cabrita
The use of extracellular vesicles (EVS) in fish sperm cryopreservation: The gilthead seabream model
Joanna Nynca
A tissue-resolved transcriptomic atlas of the reproductive axis in pikeperch (Sander Lucioperca)