Coffie, 1998



Citation


Coffie, P.A. (1998) Status of the chain pickerel, Esox niger, in Canada. Canadian Field-Naturalist [Can. Field-Nat.], pp. 133-140

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Esox niger Spawning conditions Mating system Single females swim randomly over the submerged vegetation. closely accompanied by one or two males. From time to time the female and a male roll inward and flex their bodies to bring the vents into proximity No category
Esox niger Spawning conditions Nycthemeral period of oviposition Spawning usually takes place during the day Day
Esox niger Spawning conditions Parental care There is no parental care of the eggs No care
Esox niger Spawning conditions Spawning substrate Marshy areas or flooded benches No category
Esox niger Spawning conditions Spawning site preparation No nests are built [Eggs are shed over the substrate] Open water/substratum scatter
Esox niger Spawning conditions Spawning temperature 2-22 (when ice melts) 12.0 °C
Esox niger Spawning conditions Spawning period duration 1-1.5 1.25 weeks
Esox niger Spawning conditions Spawning water type Lakes and/or ponds over submerged vegetation Stagnant water
Esox niger Spawning conditions Spawning depth Shallow water (1 to 3 m) 1.0 m
Esox niger Egg Egg adhesiveness Slightly adhesive Adhesive
Esox niger Egg Incubation time 6-12 9.0 days
Esox niger Egg Egg Buoyancy Demersal Demersal
Esox niger Spawning conditions Spawning migration period Adults move into the spawning areas, soon after the ice is out No data
Esox niger Egg Oocyte diameter 2 2.0 mm
Esox niger Female Absolute fecundity 6-8 7.0 thousand eggs
Esox niger Spawning conditions Spawning season April-May [Fall spawning has been observed] ['April', 'May']
Esox niger Larvae Sibling intracohort cannibalism The species is cannibalistic under certain conditions Present
Esox niger Female Weight at sexual maturity 0.4-0.7 [Sex not specified] 0.55 kg
Esox niger Female Length at sexual maturity 38-46 [Sex not specified] 42.0 cm
Esox niger Male Length at sexual maturity 38-46 [Sex not specified] 42.0 cm
Esox niger Larvae Initial larval size 4.2-7 5.6 mm
Esox niger Larvae Larvae behaviour The fry have an adhesive gland on the tip of the nose by witch they attch themselves to the substrate of surface scum Demersal
Esox niger Male Weight at sexual maturity 0.4-0.7 [sex not specified] 0.55 kg
Esox niger Spawning conditions Spawning release A single female may spawn several times over the course of one or two days until all eggs are shed Mutliple
Esox niger Spawning conditions Parity Chain pickerel live an average of 3 to 4 years but may attain age of 8 to 9 years under certain conditions No category