Malison and Held, 1996b



Citation


No detailed citation.

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Sander vitreus Spawning conditions Mating system Any particular pair of fish. The spawning act culminates in a rush to the surface by a female and two flanking males, with other males in close pursuit and a turning or pushing of the female onto its side which indicates spawning has occured No category
Sander vitreus Spawning conditions Nycthemeral period of oviposition Females can completely spawn in one night Night
Sander vitreus Spawning conditions Spawning substrate Over gravel and rubble shoals, gravel bottoms of inlet stream,or flooded wetland vegetation Ambiguous
Sander vitreus Spawning conditions Spawning site preparation Do not build nests, eggs are broadcast onto suitable susbrates Open water/substratum scatter
Sander vitreus Spawning conditions Spawning temperature Peak spawning at 5.6-10°C 7.8 °C
Sander vitreus Spawning conditions Spawning period duration Usually 1-2 in any given location 1.5 weeks
Sander vitreus Spawning conditions Spawning water type Inlet streams, flooded wetland vegetation No category
Sander vitreus Egg Egg adhesiveness The eggs have an adhesive coating that can act to attach them to the substrate over which thet have been broadca. Over the next several hours the eggs swell to about twice their original size and lose their adhesive quality Adhesive
Sander vitreus Egg Incubation time 26 [At 4.4°C], 21 [At 10-12.8°C], 7 [At 13.9°C] 11.4 days
Sander vitreus Female Relative fecundity Average 60, but range 28-120 74.0 thousand eggs/kg
Sander vitreus Female Resting period By late spring, ovaries were already filled with a large number of non-vitellogenic oocytes, indicating that female have a relatively short post-spawning quiescient period No data
Sander vitreus Egg Egg size after water-hardening During this water-hardening [2-3 hours] the eggs will swell to about twice their original volume] 2.5 mm
Sander vitreus Spawning conditions Spawning season Early spring, as early as February in southern areas and can extend into July ['April', 'May', 'June', 'July', 'February']
Sander vitreus Larvae Reaction to light Photopositive Photopositive
Sander vitreus Female Length at sexual maturity Size greater than 36 36.0 cm
Sander vitreus Larvae Initial larval size 6-9.5 [Mean 7.6] 7.75 mm
Sander vitreus Larvae Larvae behaviour Fry are pelagic Pelagic
Sander vitreus Female Age at sexual maturity In the wild, females mature at 3-6 years 4.5 year
Sander vitreus Spawning conditions Spawning release 200-300 eggs released per each spawning act, with acts repeated at 5-min intervals, waleye randomly broadcats eggs onto suitable substrates No category
Sander vitreus Spawning conditions Parity Spawn annually No category