Wright and Shoesmith, 1988



Citation


Wright, R.M. and Shoesmith, E.A. (1988) The reproductive success of pike, Esox lucius, aspects of fecundity, egg density and survival. J. Fish. Biol., pp. 623-636

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Esox lucius Spawning conditions Spawning substrate The optimal spawing substratum for nothern pike is a dense mat of short vegetation. The type of vegetaton does not appear to be critical although grasses and sedges appear to be preferred Phytophils
Esox lucius Spawning conditions Spawning temperature In the present study, ripe pike were first caught at temperatures of 6.3°C in 1986 and 6.9°C in 1987 6.3 °C
Esox lucius Spawning conditions Spawning period duration Ripe female pike were caught from 1 April until 4 May 1986, a period of 34 days, and from 30 March until 18 April in 1987, a period of 20 days 1.0 weeks
Esox lucius Spawning conditions Spawning water type Shallow wind-sheltered area No category
Esox masquinongy Egg Egg adhesiveness Non-adhesive eggs Non-Adhesive
Esox lucius Egg Egg adhesiveness Adhesive eggs Adhesive
Esox lucius Female Relative fecundity The relative fecundity of pike in the Lindford lakes (17 and 19 eggs per g) is low compared with the 27 eggs per g for windermere 17.0 thousand eggs/kg
Esox lucius Egg Egg size after water-hardening Mean size of 2.48 for 41-cm female and 2.80 for 101-cm female [When the eggs reached the 'eye' stage, a sample of 50 from each pike was taken and the diameters measured using a binocular microscope] 2.48 mm
Esox lucius Female Absolute fecundity The lowest calue of absolute fecundity was reported as 2300 eggs from a pike 25 cm in length form Lake disna in the Lithuaniana SSR. In the present study a 37-cm pike from St Peter's Lake was found to have only 44+6 eggs. 2300.0 thousand eggs
Esox lucius Larvae Initial larval size Mean of 7.99 for 41-cm female and 8.09 for 101-cm female 7.99 mm