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Notes on the growth and biology of the prawn Pandalus bonnieri Caullery

Published online by Cambridge University Press:  11 May 2009

R. B. Pike
R. B. Pike
Affiliation:
The Marine Station, Millport
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Extract

Pandalus bonnieri is a dioecious species and no protandrous hermaphrodites have been seen.

The breeding season and incubation period for P. bonnieri are described.

The number of eggs laid increases with the size of the female. At 16 mm. carapace length the number of eggs is c. 1000 and at 24 mm. carapace length the number of eggs is c. 4000. The number for a single mm. size group varies roughly by ±10%.

Both male and female P. bonnieri become sexually mature at about 18 months, and in the Clyde seldom live beyond 3 years of age.

The colour of the eggs in P. bonnieri is sage green, in P. borealis blue green, in P. montagui light emerald green and in P. propinquus fawn.

Juvenile P. bonnieri can be separated into males and females by the shape of the pleopods within 4–6 months of hatching.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 31 , Issue 2 , October 1952 , pp. 259 - 267
Copyright
Copyright © Marine Biological Association of the United Kingdom 1952

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References

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