Reproduction of Raja polystigma
Document source: http://www.fishbase.org/Reproduction/FishReproSummary.php?ID=9283&StockCode=9605
 
Main Ref. Breder, C.M. and D.E. Rosen, 1966
Mode dioecism
Fertilization internal (oviduct)
Spawning frequency
Batch spawner Ref.  
Reproductive guild nonguarders
open water/substratum egg scatterers
Parental Care
Description of life cycle and mating behavior Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Ripe females occurring mostly in the winter and deposit 20 to 62 egg-cases per year depending on size (Ref. 3167). Distinct pairing with embrace. Y oung may tend to follow large objects, such as their mother (Ref. 205).
Search for more references on reproduction Scirus
(e.g. 9948)
( e.g. cephalopods )
Entered by Garilao, Cristina V. on 11.16.99
Modified by Luna, Susan M. on 02.16.04
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