Hutchinson, P. and Mills, D.H. (1987) Characteristics of spawning-run smelt, Osmerus eperlanus (L.), from a Scottish river, with recommendations for their conservation and management. Aquaculture and Fisheries management, pp. 249-58
Species | Development state | Trait | Primary Data | Secondary Data |
Osmerus eperlanus | Female | Absolute fecundity | 40.131 [Age 1+], 66.512 [Age 2+] and 105.956 [Age 3+] | 40.13 thousand eggs |
Osmerus eperlanus | Spawning conditions | Spawning season | Smelt were first detected in the vicinity of the spawning grounds on 10 March, in both 1980 and 1981. | ['March'] |
Osmerus eperlanus | Spawning conditions | Spawning period duration | Fish were present in the river for approximatively 1 week in both years although the spawning grounds were abandoned at times of high flow [Also described as 5-10 days, or 8-10 days; others authors foudn that while spawing could last up to 3-4 weeks, the peak seldom lasted for more than 1 week] | 7.5 weeks |
Osmerus eperlanus | Spawning conditions | Nycthemeral period of oviposition | Spawning activity had occurred overnight | Night |
Osmerus eperlanus | Spawning conditions | Parity | Consists chiefly of only two age groups (1+ and 2+) with only a small proportion of 3+ year old individuals | No category |