[Rearing of cod: research results and knowledge of cod rearing]

abnormal behaviour alimentation bacalao cabillaud cod comportamiento anormal comportement anormal crecimiento croissance enfermedades de los peces feeding fertilization fish diseases fish larvae fitomejoramiento growth induced ovulation larvas de peces larve de poisson madurez maladie des poissons maturity ova oviposition ovulation induite ovule plancton plankton plant breeding ponte reproduction