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SAP-BIO-Lebanon National Report Page 31 <strong>of</strong> 95<br />
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Table 7. Zooplancton (Lakkis, S. et al., 1996)<br />
Microzooplankton<br />
Foraminifera: Thirteen species have been recorded in Lebanon and <strong>the</strong>se belong to two families namely:<br />
Globigeriniidae et Globorotaliidae containing 8 genera.<br />
Rhizopodes (actinopodes): Sixty seven species belonging to 5 main groups inhabit <strong>the</strong> Lebanese waters<br />
with <strong>the</strong> majority thriving between 200-600 m. Lakkis (1971a) and Abboud-Abi-Saab (1988).<br />
Group Genus Species<br />
Acantharia 10 10<br />
Radiolaria Spumellaria 25 25<br />
Nasselaria 24 24<br />
Phaeodaria 7 7<br />
Heliozoa 1 1<br />
Tintinnoinea: Ninety nine species belonging to 32 genera and 17 families have been identified in<br />
Lebanon. Of <strong>the</strong>se, 31 species are <strong>of</strong> tropical or indo-pacific origin (Abboud-Abi-Saab, 1989a, Abboud-<br />
Abi-Saab and Kassab 1990). The most common genera are Tintinnopsis (13 species), Eutintinnus (9<br />
species), Coxliella (8) and Favella (7).<br />
Seasonal distribution indicates two peaks. One in winter where <strong>the</strong> following species become abundant<br />
Tintinnopsis beroidea, T. campaula, T. cylindrica, Codonellopsis schabi et Tintinnidium neapolitanum.<br />
The second peak occurs in spring with <strong>the</strong> following species: Favella serrata, Rhabdonella spiralis et<br />
Eutintinnus medius.<br />
Macrozooplancton<br />
a- Cnidaria<br />
<strong>the</strong> following taxa have been reported in Lebanese waters:<br />
Hydromedusae:<br />
Six orders have been reported in Lebanese waters, <strong>the</strong> Anthomedusae (32 species), eptomedusae (17),<br />
Langiomedusae (1), Limnomedusae (4), Trachymedusae (9), and Narcomedusae (3). Of <strong>the</strong> 67 reported<br />
species, 11 are <strong>of</strong> tropical or indo-pacific origin, and 19 are newly reported in <strong>the</strong> Mediterranean sea<br />
(Goy, Lakkis and Zeidane, 1991).<br />
The most commonly found species belong to <strong>the</strong> Trachymedusae (Liriope tetraphylla, Aglaura<br />
hemistoma, Rhopalonema velatum, Tetrorchis erythrogaster).<br />
Scyphozoa<br />
Of <strong>the</strong> 5 species recorded in Lebanon two are commonly found in summer (Rhizostoma pulmo and<br />
Rhopilema nomadica) (Lakkis, 1991c).<br />
Siphonophora<br />
Twenty eight species <strong>of</strong> Siphonophores comprising 5 Physonectes and 23 Calycophores are reported in<br />
Lebanon (Lakkis and Zeidane, 1995). Nanomia bijuga is <strong>the</strong> most common among <strong>the</strong> Physonectes. In<br />
<strong>the</strong> Calycophores 4 species are abundant: Eudoxoides spiralis, Sphaeronectes irregularis, Diphyes dispar<br />
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Prepared By M. Nader & S. Talhouk June, 2002