oa African Zoology - Contributions to the biology of the panga, Pterogymnus laniarius (Pisces: Sparidae): age, growth and reproduction

Volume 12, Issue 2
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X



All the fish used in this investigation were caught by commercial side trawlers along the eastern Cape coast of South Africa. Age and growth of P. laniarius was determined from otoliths collected monthly from April 1974 to September 1975. The validity of annuli was proved by monthly edge examination of the otoliths. There is no difference in growth between the sexes. Some fish become sexually mature at a total length of 26 cm. Fifty percent maturity is attained at a length of 28 cm. between the ages of 4 and 5 years. All fish are sexually mature at a total length of 32 cm, at an age of 6 years. The spawning season of the panga extends from mid-September to May.

Loading full text...

Full text loading...


Article metrics loading...


This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error