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Late Cretaceous crest-bearing shrimps from the Sahel Alma Lagerstatte of Lebanon

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Audo D., Charbonnier S.
Acta Palaeontologica Polonica
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2013
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tom 58
|
nr 2
Decapod crustaceans are the most diverse group of fossil invertebrates from the Upper Cretaceous Sahel Alma Lagerstätte (Lebanon, Middle East). They are mainly represented by abundant crest−bearing shrimps which were first described as Penaeus libanensis. We review this species applying the new systematic nomenclature and we propose a more complete description based on 54 unpublished specimens. This review leads to the erection of Palaeobenthesicymus gen. nov. and to the new combination Palaeobenthesicymus libanensis that is the oldest record of the family Benthesicymidae. A neotype is herein designated. Detailed comparisons with extant analogues suggest that the crest bearing shrimps inhabited relatively deep water settings most probably exceeding 150 m, at the transition between the lower circalittoral and the upper bathyal zones, under dysphotic or aphotic conditions.
2

First report of the ticks Haemaphysalis punctata Canestrini et Fanzago, 1878, Haemaphysalis parva (Neumann, 1897) and Dermacentor marginatus (Sulzer, 1776) (Acari, Amblyommidae) from humans in Lebanon

100%
Raad M., Azar D., Perotti M. A.
Acta Parasitologica
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2020
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tom 65
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nr 2
3

Fecundity and condition of successful invaders: Siganus rivulatus and S. luridus (Actinopterygii: Perciformes: Siganidae) in the Eastern Mediterranean Sea

80%
Bariche M., Sadek R., Azzurro E.
Acta Ichthyologica et Piscatoria
|
2009
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tom 39
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nr 1
Background. Rabbitfishes, Siganus rivulatus and S. luridus, are among the most successful invaders in the Mediterranean Sea but population parameters in their new environment are barely known. Fecundity and condition are key parameters of fish populations and their assessment is very important for exotic species; this information is needed to properly evaluate their reproductive and invasive potential. The current is study contributes to fill this gap by exploring fecundity and condition of those two fish species. Materials and Methods. About 1000 individuals of Siganus rivulatus and S. luridus were processed from off the Lebanese coasts over a 20-month period. Fecundity and condition index were estimated and compared. Regression analyses tested the dependence of fecundity on fish length, mass, and gonad mass. Results. Fecundity values were assessed for S. rivulatus and for S. luridus: Fabs = 272 043 ± 144 666 (SD), Frel = 2123 ± 808 oocytes · g-1 for S. rivulatus and Fabs = 245 273 ± 164 211, Frel = 1584 ± 627 oocytes · g-1 for S. luridus. The relation between Fabs and gonad mass [g] was y = 14 339x + 59 297 for S. rivulatus and y = 9245x + 62 140 for S. luridus. Condition exhibited a clear seasonal trend for the two rabbitfishes. It increased in spring prior to the reproduction period and again in autumn before the decrease of seawater temperature, and remained low during the cold period. Its values were significantly higher for S. luridus than to S. rivulatus. Conclusion. S. rivulatus displayed a higher fecundity while S. luridus showed a better condition in the Eastern Mediterranean. Gonad mass was the best predictor of fecundity for both species while condition exhibited a clear seasonal trend in both rabbitfishes.
4

New and poorly known fossil Coniopterygidae in Cretaceous and Cenozoic ambers [Insecta: Neuroptera]

80%
Nel A., Perrichot V., Azar D.
Annales Zoologici
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2005
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tom 55
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nr 1
The new genus and species Alboconis cretacica (oldest known Aleuropteryginae: Fontenelleini) and the coniopterygine new genus and species Gallosemidalis eocenica, are described, respectively from a late Albian and an early Eocene French amber. From Lebanese amber, the early Cretaceous Aleuropteryginae Libanoconis fadiacra (Whalley, 1980) is refigured and discussed.
5

Ocena podobienstwa genetycznego wybranych form Avena sterilis L. pochodzacych z Izraela, Syrii i Libanu

61%
Paczos-Grzeda E., Chrzastek M., Wacko S., Miazga D.
Zeszyty Problemowe Postępów Nauk Rolniczych
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2007
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tom 517
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nr 2
559-567
In present paper an analysis of genetic similarity of 14 A. sterilis accessions from Israel, Syria and Lebanon was conducted. Polymorphism of RAPD markers was studied. Selected primers produce 122 fragments out of which 93 were polymorphic and 19 were genotype-specific. RAPD-based genetic similarity was estimated between 0.441 (CN 20304 vs. CN 20322) and 0.775 (AVE 941 vs. PI 287211). The mean genetic similarity was calculated at 0.614. Genetic similarity matrix was applied for claster analysis through UPGMA method. Interspecific genetic diversity of Avena sterilis was higher than that evaluated on a base of molecular markers in previous studies with Avena sativa. The highest genetic similarity was estimated for accessions originating from Israel. The highest distance was noticed for accessions from Syria. Forms originating from Lebanon had a higher ressemblance to objects from Israel than those from Syria.
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