Spawning Summary

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Spawning of Umbra pygmaea

Main Ref:

Data Ref.:

Country:

USA

Spawning ground:

lacustrine

Locality:

not specified

Season:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

111

Sex ratio:

% Ref.: Poll, M., 1949

Temperature:

14 - 15 °C

Gestation period:

month/s

Length of offspring:

Batch spawners

Daily spawning frequency

-
Mean:

Min Ref.:
Max Ref.:
Mean Ref.:

Comments:

Spawn in hollows formed in masses of algae (Ref. 39079, 39067).

*Ref.*				Glossary
	(e.g. 9948)

cfm script by eagbayani08/21/99 , php script by kbanasihan05/26/2010 , last modified by kbanasihan31/01/2012