Species | Primary Data | Secondary Data | Reference |
---|---|---|---|
Aphanius iberus | From September until January | 5.0 | Fernandez-Delgado et al, 1988 |
Aspius aspius | From September to April | 8.0 | Kompowski et Neja, 2004 |
Cobitis paludica | From October to April | 7.0 | Oliva-Paterna et al, 2002 |
Cobitis taenia | Spermatogenesis occurs in males not onyl from May to July, but also in autumn. During winter, the testes were still filled with spermatozoa, with spermatogonia located in the wall of the lobules. Therefore the winter phase of quiscence is not folled by the depletion of the testes which remain full of sperm throughout the year | 10.0 | Marconato and Rasotto, 1989 |
Cyprinus carpio | Spermiogenesis is very short in carp [the completion of spermatogenesis is in october] | 0.0 | Billard et al, 1995 |
Cyprinus carpio | Although the spermatogenesis is continuous there is a male gonadal cycle which increases in September and decreases around May | 3.0 | Crivelli, 1981 |
Cyprinus carpio | Spermatogenesis was continuous and spermatogonia, psermatocytes, spermatids and sperm co-occurred in most testes throughout the spawning and non-spawning periods. Thus, males are euipped to spawn at any time during the year, but there is a defined gonadal cycle with a peak in Ig before the onset of spawning | 0.0 | Smith and Walker, 2004 |
Dicentrarchus labrax | One month (Spematozoa present in November) | 2.0 | Prat et al. (1990) General And Comparative Endocrinology 78, 361-373 |
Dicentrarchus labrax | All males were spermiating from December to March | 5.0 | Prat et al, 1999 |
Dicentrarchus labrax | With both diets, males were running (mitting sperm on gentle hand pressure) from early November to late April | 3.0 | Cerda et al, 1994 |