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Rafalah, F., El-Mor, M. (2018). SOME ASPECTS OF THE REPRODUCTIVE BIOLOGY OF THE SADDLED SEA BREAM OBLADA MELANURA (LINNAEUS, 1758) IN BENGHAZI COAST –EASTERN LIBYA. Al-Azhar Bulletin of Science, 29(Issue 2-C), 61-68. doi: 10.21608/absb.2018.33819
Fatma Rafalah; Mohammad El-Mor. "SOME ASPECTS OF THE REPRODUCTIVE BIOLOGY OF THE SADDLED SEA BREAM OBLADA MELANURA (LINNAEUS, 1758) IN BENGHAZI COAST –EASTERN LIBYA". Al-Azhar Bulletin of Science, 29, Issue 2-C, 2018, 61-68. doi: 10.21608/absb.2018.33819
Rafalah, F., El-Mor, M. (2018). 'SOME ASPECTS OF THE REPRODUCTIVE BIOLOGY OF THE SADDLED SEA BREAM OBLADA MELANURA (LINNAEUS, 1758) IN BENGHAZI COAST –EASTERN LIBYA', Al-Azhar Bulletin of Science, 29(Issue 2-C), pp. 61-68. doi: 10.21608/absb.2018.33819
Rafalah, F., El-Mor, M. SOME ASPECTS OF THE REPRODUCTIVE BIOLOGY OF THE SADDLED SEA BREAM OBLADA MELANURA (LINNAEUS, 1758) IN BENGHAZI COAST –EASTERN LIBYA. Al-Azhar Bulletin of Science, 2018; 29(Issue 2-C): 61-68. doi: 10.21608/absb.2018.33819

SOME ASPECTS OF THE REPRODUCTIVE BIOLOGY OF THE SADDLED SEA BREAM OBLADA MELANURA (LINNAEUS, 1758) IN BENGHAZI COAST –EASTERN LIBYA

Article 13, Volume 29, Issue 2-C, Summer and Autumn 2018, Page 61-68  XML PDF (740.43 K)
Document Type: Original Article
DOI: 10.21608/absb.2018.33819
Authors
Fatma Rafalah* 1; Mohammad El-Mor2
1Zoology Department, Faculty of Science, Omar Almokhtar University, P.O. box 919 Al-Qubba , Libya
2Marine Science Department, Faculty of Science, Suez Canal University, Egypt. tatarafalah@gmail. Com
Abstract
The reproductive biology of 400 specimens of Oblada melanura (Family: Sparidae) collected by gill and trammel nets in Benghazi coast, Eastern Libya, Mediterranean Sea from artisanal fishing was studied. There were monthly variations in sex ratio between females (242 fish = 60.5%) and males (158 fish = 39.5%). Sex ratio was (1: 1.53) for males to females respectively. Length at first maturity, L50, for O. melanura was found to be 17.5 cm for males and 18.6 for females. The breeding season extends from March to June. Oocyte diameters increase from January (345 ± 27.4 μm), until the maximum value in June (1112 ± 487.8 μm). The average absolute fecundity ranged was from 22278 ± 181.8 to 366780 ± 611.1 for fish with the average total length ranging from 16.5 to 32.4 cm, whereas relative fecundity ranged from 1350.2 eggs/cm to 11320.4 eggs/cm.
Keywords
Sparidae; Oblada melanura; Reproductive biology
Main Subjects
Zoology
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