Acronym REPRO-SWIM
Category
Fisheries
Title Swimming for reproduction: identification of swimming induced metabolic and hormonal switches that trigger reproduction Programme FP7
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
FP7 - Intra-European Fellowships (IEF)
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
PEOPLE – Marie Curie Actions
Specific Programme (FP7)
People
Funding source European Coordinator Josep V. Planas Coordinator email jplanas@ub.edu
Coordinator institution
UB - University of Barcelona (Spain)
Institutions involved
NA
Start year 2008 End year 2010 Funding (€) € 151,369 Website https://cordis.europa.eu/project/id/219971 Summary A long standing question in the reproductive physiology of fish is how the metabolic status determines the onset of sexual reproduction, which often coincides with the start of reproductive migration. We hypothesize that swimming in that case triggers metabolic and hormonal changes critical for the induction of maturation. Studies on migrant fish like eel and salmon support the hypothesis that swimming triggers sexual reproduction, mobilises energy reserves for fuel and positively influences gamete quality. The mechanism behind this is however non-elucidated. Exercise, such as performed by migratory species, can be used as an experimental factor in studying the interaction between the metabolic processes and the onset of sexual maturation. This knowledge is important in optimising aquaculture of commercially interesting species, taking rainbow trout as a model. This study will identify the key metabolic and hormonal factors and their expression profiles in the onset of sexual reproduction as induced by swimming. Using microarray technology, the transcriptional response to exercise of all important tissues involved - gonad, muscle, liver, fat, brain and pituitary - will be analysed in a holistic approach. The main genes involved in both reproductive and metabolic functions will be identified.
To investigate the influence of swimming-induced activity on reproduction and growth, two physiological processes competing for available energy, in teleost fish.
Keywords
Fish biology;
Genetic;
Fish reproduction;
Marine Region
76
Not associated to marine areas
0
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