TY  - JOUR
T1  - Histological Study on the Gonad of the Protandrous Anemonefish (<I>Amphiprion ocellaris</I>)
AU - Abol-Munafi, A.B. AU - Norazmi-Lokman, N.H. AU - Asma, N.A. AU - Sarmiza, S. AU - Abduh, M.Y. 
JO  - Journal of Animal and Veterinary Advances
VL  - 10
IS  - 22
SP  - 3031
EP  - 3036
PY  - 2011
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2011.3031.3036
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2011.3031.3036
KW  - Gonad morphology
KW  -ovotestes
KW  -protandrous
KW  -anemonefish
KW  -Malaysia
AB  - Standard histological protocol were performed on fifteen families of <I>A. ocellaris</I> collected at Pulau Bidong, Terengganu to describe and differentiate the gonad morphology between male, female and the non-breeders of protandrous Anemonefish (<I>Amphiprion ocellaris</I>). Based on the observations, non-breeder fish (3.5-5.8 cm TL) possess intermixed ovotestes with no clear boundaries between testicular and ovarian tissues. The ovotestes contained previtellogenic oocytes interspersed with fewer spermatocytes. Male fishes (5.3-6.9 cm TL) exhibited a different type of ovotestes. Male fish ovotestes were dominated by spermatogenic cells with fewer numbers of surrounding previtellogenic oocytes. In contrast, female fish gonadal tissue (6.0-9.2 cm TL) only contained ovarian tissues with no evidence of any testicular tissues. The ovarian was also larger and more mature than male and non breeders ovarian tissue with well organised ovigerous lamellae filled with oocytes visible at different developmental stages. The absence of the testicular tissues in the female gonad shows that the change of sex from male to female is an irreversible process.
ER  -