Editing Ruffe (section)

==Life cycle==
Ruffe egg sizes typically range from {{cvt|0.34|to|1.3|mm}} in [[diameter]], depending on the size of the female.<ref name="life history" /> If the same female has a second batch in the same season, the eggs will be smaller than the first batch. The size of the second batch of eggs is about {{cvt|0.36|to|0.47|mm}}, while the first batch of eggs goes from {{cvt|0.90|to|1.213|mm}} in size. If the female lays twice in one season, there is usually one in late winter/early spring and one in late summer. Hatching occurs in 5–12 days in temperatures of {{convert|10|-|15|C|F}}.
The next stage in life is the embryonic/juvenile stage. [[Embryos]] that are freshly hatched are between {{cvt|3.5|and|4.4|mm}} in size. These embryos are sedentary for 3–7 days, and in that time grow to about {{cvt|4.5|to|5.0|mm}} in length. One week after the hatching, the young ruffe start to swim and feed actively; they do not form schools at this age.<ref>{{cite journal |last1=Ogle |first1=Derek H. |title=A Synopsis of the Biology and Life History of Ruffe |journal=Journal of Great Lakes Research |date=1 January 1998 |volume=24 |issue=2 |pages=170–185 |doi=10.1016/S0380-1330(98)70811-1 |bibcode=1998JGLR...24..170O |url=https://www.sciencedirect.com/science/article/abs/pii/S0380133098708111|access-date=19 November 2023|url-access=subscription }}</ref>

From here, the ruffe gradually mature until they are 2–3 years old, when they reach full maturity.  At full length, the adult ruffe is usually around {{cvt|20|cm}}, and a maximum of {{cvt|29|cm}} Growth usually occurs more when the ruffe is in clear, brackish waters. Generally, female and male ruffe do not live longer than 7 to 11 years.