Some Aspects of The biology of Black Spot Sea Bream, Pagellus bogaraveo (Brunnich, 1768) in Umm al-Rizam Coast,  Eastern Libya

Ezalnhaser A. Farag Abziew

doi:10.59743/jmset.v6i1.48

Authors

Ezalnhaser A. Farag Abziew Department of Forest and Rangeland, Faculty of Natural Resources and Environmental Sciences, Omar Al-Mukhtar University, Derna, Libya.

DOI:

https://doi.org/10.59743/jmset.v6i1.48

Keywords:

Biology aspects, Pagellus bogaraveo, Umm al Rizam coast, Derna, Mediterranean Sea, Libya

Abstract

Monthly samples of 600 specimens of Pagellus bogaraveo were collected from artisanal fishing on Umm al Rizam coast, eastern Libya in 2019. Total length ranged from 16.5 to 38.4 cm with average total weight ranging from 68.5-401.8 g. The length–weight relationship for all individuals was described by the following parameters: α= 0.008 and b= 3.0993. There were monthly variations in the sex ratio between males (245 fish= 40.8% (and females (355 fish= 59.2%). The overall sex ratio was 1:1.45 in favor of females. Pagellus bogaraveo feed on a wide variety of prey types: bony fish (41.2%), mollusks (22.9%), crustaceans (20.1%), polychaetes (7.5%), algae (4.4%), and echinoderms (3.9%). The feeding intensity was quite high during the summer (82.5%) and autumn (68.0%).

References

Al-Hassan L.A., and El-Silini O.A. (1999). Check-list of bony fishes collected from the Mediterranean coast of Benghazi, Libya. Revista de Biologia Marina y Oceanografía, 34(2): 291-301.

Ali R.R. (2008). Biological studies on Pagrus pagrus from Sousa coast (El-Gabal El-Akadar), Libya. M.Sc. Thesis, Marine Resource department, Faculty of Natural Resources and Environmental Sciences., Omar Al Mukhtar University, Libya.

Bauchot M.L., and Hureau J.C. (1986). Sparidae, in: Quero G.C., Hureau C., Karrer C., Post A., and Saldanha L. (Eds.), Checklist of the Fishes of the Eastern Tropical Atlantic (CLOFETA) Vol. 2, JNICT, Lisbon; SEL, Paris, and UNESCO, Paris, pp. 790-812.

Bauchot M.L., and Smith L.B. (1983). FAO Species Identification Sheets for Sparidae. W. Fisher, G Fishery Purposes, Western Indian Ocean Fishing Area, 51: 220-225.

Ben-Abdallah R., Alturky A., and Fituri A. (2005). Records of exotic fishes in the Libyan coast. Libyan Journal of Marine Science, 10: 1-8.

Bílge G., Yapici S., Fíliíz H., and Cerím H. (2014). Weight-length relations for 103 fish species from the southern Aegean Sea, Turkey. Acta Ichthyol. Piscat., 44(3): 263-269.

Buxton C.D., and Garratt P.A. (1990). Alternative reproductive styles in sea breams (Pisces: Sparidae). Environ. Biol. Fish., 28(1-4):113-124.

Campillo A. (1992). Les pêcheries françaises de Méditeranée: synthèse des connaissances. Institut Francais de Recherche pour l'Exploitation de la Mer, Nanets, France.

Chilari A., Petrakis G., and Tsamis E. (2006). Aspects of the biology of black spot sea bream (Pagellus bogaraveo) in the Ionian Sea, Greece. Fisheries Research J., 77(1):84-91.

Dorel D. (1986). Poissons de l'Atlantique nord-est relations taille-poids. Institut Francais de Recherche pour l'Exploitation de la Mer, Nantes, France.

Ekwella S.A. (2008). Environmental and biological studies on juvenile commercial fishes in El-Hamamh Coasts, El-Gabal-El-Akadar, Libya. M.Sc. Thesis, Marine Resource department, Faculty of Natural Resources and Environmental Sciences., Omar Al Mukhtar University, Libya.

Elbaraasi H, Elabar B., Elaabide S., and Bashi A. (2019). Updated checklist of bony fishes along the Libyan coasts (Southern Mediterranean Sea). Medit. Mar. Sci. J., 20(1): 90-105.

El-Mor M., and E-Maremie H. A. (2008). Feeding Habits of the Nokt Diplodus noct, from Southern Sinai, Gulf of Suez, Red Sea, Egypt. Arabian Aquaculture Society J., (3): 1-15

Froglia C. (1977). Feeding of Lithognathus mormyrus (L.) in central Adriatic Sea (Pisces, Sparidae). Rapp. Comm. Int. Mer Médit., 24: 95-97.

Giacalone V.M., D’anna G., Badalamenti F., and Pipitone C. (2010). Weight-length relationships and condition factor trends for thirty-eight fish species in trawled and untrawled areas off the coast of northern Sicily (central Mediterranean Sea). Journal of Applied Ichthyology, 26(6): 954-957.

Godfriaux B.L. (1969). Food predatory demersal fish in Hauraki Gulf. I. food and feeding habits of the snaper Chrysophyrs auratus, N. Z. Mar. Fresh Res., 3: 518-544.

Golani D., Öztürk B., and Basusta N. (2006). Fishes of the Eastern Mediterranean. Turkish Marine Research Foundation, Istanbul, Turkey.

Gomes T.M., Sola E., Grós M.P., Menezes G., and Pinho M.R. (1998). Trophic relationships and feeding habits of demersal fishes from the Azores: importance to multispecies assessment. ICES C.M., 1998/O: 7.

Hynes H.B. (1985). The food of fresh water. The feeding of juvenile striped sea bream, Lithognathus mormyrus (L.) in the Central Adriatic Sea (Pisces, Sparidae). Rapp. Comm. Int. Mer Médit., 29: 107-108.

Hyslop E.J. (1980). Stomach content analysis: Review of methods and their application. J. Fish. Biol., 17: 411-429.

Jardas I., (1996). Jadranska ihtiofauna. Školska knjiga, Zagreb, 533 pp.

Jonsson G. (1992). Islenskir fiskar. Fiolvi, Reykjavik, 568 pp.

Laith A.J. (2003). Asymmetry in some morphological characters of four sparid fishes from Benghazi Libya. Oenological Studies, 132 (3): 83-88.

Marshall T.C., Kjesbu O.S., Yaragina N.A., Solemdal P., and Ulltang O. (1998). Is spawning stock biomass a sensitive measure of the reproductive potential of Northeast Arctic cod. Can. J. Fish. Aquat. Sci., 55: 1766-1783.

Oronsaye C.G., and Nakpodia F.A. (2005). A comparative study of the food and feeding habits of Chrysichthys nigodigitatus (Lacepede) and Brycinus nurse in a Tropical River. Pakistan Journal of Scientific and Industrial Research, 48(2): 118–121.

Papaconstantinou C., Politou C.Y., Caragitsou E., Stergiou K.I., Mytilineou C., Vassilopoulou V., Fourtouni A., Karkani M., Kavadas S., Petrakis G., and Siapatis A. (1994). Investigations on the abundance and distribution of demersal stocks of primary importance in the Thermaikos Gulf and the Thracian Sea (Greece). National Centre for Marine Research, Athens. Greece, Technical Report, North Aegean Series 4/1994.

Pauly D., Christensen V., and Walters C. (2000). Ecopath, Ecosim, and Ecospace as tools for evaluating ecosystem impact of fisheries. ICES journal of Marine Science, 57(3): 697-706.

Perez A.G., Rios J.J., Sanz C., and Olias J.M. (1992). Aroma components and free amino acids in strawberry variety Chandler during ripening. Journal of Agricultural and Food Chemistry, 40(11): 2232-2235.

Pillay T.V.R. (1952). A critique of the methods of study of food of fishes. J. Zool-Soc. India, 4:185-200.

Post D.M., Pace M.L., and Hairston N.G. (2000). Ecosystem size determines food-chain length in lakes. Nature, 405(6790): 1047-1049.

Psomadakis P.N., Giustino S., and Vacchi M. (2012). Mediterranean fish biodiversity: an updated inventory with focus on the Ligurian and Tyrrhenian seas. Zootaxa, 3263(1): 1-46.

Shalloof K.A.S., and Khalifa N. (2009). Stomach contents and feeding habits of Oreochromis niloticus (L.) from Abu-Zabal lakes, Egypt. World Applied Sciences Journal, 6(1): 1-5.

Wootton R.J. (1990). Ecology of Teleost Fishes. Fish and Fisheries Series Chapman and Hall, London, UK.