Categories
vol-29HERMAPHRODITISM OF RHABDOSARGUS HAFFARA
(TELEOSTEI: SPARIDAE) FROM SUEZ BA Y, RED SEA
BY
KAMAL F EL-BORA Y
National Institute a/Oceanography and Fisheries. P.G. 182, Suez, Egypt.
£. Mail: [email protected]
Key words: Sparidae, Rhabdosargus haffara, hermaphroditism, protandrous.
ABSTRACT
Rhabdosargus hafJara is one ofthe most economically importantfish in
the Suez Bay. The present study is based on the examination of 398 fish
specimens ranged in length from 9.4 to 21. 0 cm in total length collected
from Suez Bay and aimed to give information on the hermaphroditism and
sex change in Rhabdosargus ha((ara. Histological sections for gonads
were made. Five types ofgonads were arbitrary classified according to the
functional male or female cells into: Mf mf fm, Fm, and F. The present
results showed that 76.88 % were hermaphrodites distributed as 58.0 %
Mf 4 77 % mf 5.28 % fm and 8.79 % Fm while 23.12 % are exclusively
female gonads. Frequency distribution analysis of different types of
gonads by length classes and examination of histological sections
suggested that B.. harrara was a protandrous hermaphrodite. Gonads of
exclusively female were found but no exclUSively male gonads were
detected.
