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Spawning of   Bolinus brandaris
Main Ref: Vasconcelos, P., P. Moura, C.M. Barroso and M.B. Gaspar, 2012
Data Ref.: Vasconcelos, P., P. Moura, C.M. Barroso and M.B. Gaspar, 2012
Country: Portugal
Spawning ground: coastal
Locality: Ria Formosa lagoon/2008-2009
Season: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
17 16 17 20 22 22 12 16 10 10 13 14
Sex ratio:    %  Ref.:   
Temperature: 25.2999992370605 - 26.7000007629395  °C
Fecundity
Ref.:  
  min     (g) (cm)  
  max     (g) (cm)  
Spawning Cycles: (1/y)   Ref:  
Comment:  
Gestation period: month/s
Length of offspring: cm
Relative Fecundity: oocytes/g
Mean: oocytes/g
Min Ref.:
Max Ref.:
Mean Ref.:
Fecundity/length relationship ( F = a * L ^b):
  Size (cm)  
  n  
  a  
  b  
  r  
Batch spawners
Daily spawning frequency -
Mean:
Min Ref.:
Max Ref.:
Mean Ref.:
Comments: GSI of females read off from Ref. 127250 (p. 76, Fig. 6a) using WebPlotDigitizer. Spawning peak was from June to July (Ref. 127250).
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