1. Buckle, D.J., Animal Hormones, London: Edward Arnold, 1983.
2. Barbaro, A., Einarssonfif, B., Birnir, B., and Sigurosson, S., Modeling and Simulations of the Migration of Pelagic Fish, Santa Barbara, Univ. California: CNLS, 2008.
3. Bolliet, V., Aranda, A., and Boujard, T., Demand-feeding rhythm in rainbow trout and European catfish: synchronisation by photoperiod and food availability, Physiol. Behav., 2001, vol. 73, pp. 625–633.
4. Chen, W.M., Naruse, M., and Tabata, M., The effect of social interactions on circadian self-feeding rhythms in rainbow trout Oncorhynchus mykiss Walbaum, Physiol. Behav., 2002, vol. 76, pp. 281–287.
5. Cyr, D.G. and Eales, J.G., Interrelationships between thyroidal and reproductive endocrine systems in fish, Fish Biol. Fish., 1996, vol. 6, pp. 165–200.