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Biodiversity and Forests

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trend may continue for some years as there are<br />

still areas to be discovered <strong>and</strong> rediscovered. As<br />

is the case of the flora above, the herptiles of<br />

the Lebanese coastline are highly threatened<br />

by unregulated development <strong>and</strong> its skink <strong>and</strong><br />

snake species are in decline. In general, the<br />

herptiles of Lebanon are critically decreasing in<br />

<strong>and</strong> around cities, towns <strong>and</strong> villages. This is not<br />

only because of urbanisation <strong>and</strong> habitat loss<br />

but also because of the traditional persecution<br />

of these living organisms by local populations.<br />

However, the percentage of threatened reptile<br />

species is particularly high (18.2percent) <strong>and</strong><br />

expected to increase in the absence of a defined<br />

national strategy to conserve these species.<br />

Eirenis levantinus, reptile species threatened in Lebanon<br />

5.3.2 Freshwater <strong>Biodiversity</strong><br />

Lebanon’s freshwater fauna <strong>and</strong> flora include<br />

987 species (Al-Zein, 2001), of which 656 are<br />

invertebrate species (61 species of worms, 41<br />

mollusks, 60 crustaceans, <strong>and</strong> 494 insects; MOA,<br />

1996).The faunal species in freshwater represent<br />

16 percent of the total fauna biodiversity of<br />

the country <strong>and</strong> the floral species represent 6<br />

percent of the flora species only. Five percent of<br />

the country’s freshwater fauna are threatened,<br />

including the Globally Near Threatened Otter<br />

Lutra lutra, <strong>and</strong> 1.3 percent are endemic<br />

(MOA/UNEP/GEF, 1996). The only endemic<br />

freshwater fish to Lebanon Phoxinellus libani<br />

was considered extinct in the country (MOA/<br />

UNEP/GEF, 1996) but it has been observed at<br />

least in the Yammouneh Lake, Litani River <strong>and</strong><br />

Qaraoun Lake (El Zein, 2001). Many have been<br />

exterminated from specific river systems due to<br />

overfishing.<br />

There are 25 fish species pertaining to different<br />

families: Cyprinidae, Cyprinodontidae,<br />

Cobitidae, Salmonidae, Anguillidae, Cichlidae,<br />

Mugilidae, Puciliidae, Blenniidae, Lutjanidea.<br />

Of them, one species is listed as vulnerable,<br />

three are endangered <strong>and</strong> two are critically<br />

endangered. In addition to these, other species<br />

Credit: TERRE<br />

have been introduced for aquaculture: rainbow<br />

trout (Oncorhynchus mykiss) <strong>and</strong> brown trout<br />

(Salmotrutta fario; Al Zein, 1997), brook trout<br />

(Salvelinus fontinalis), common carp (Cyprinus<br />

carpio), mosquito fish (Gambusia affinis),<br />

silver carp (Hypophthalmichthys molitrix), etc.<br />

Whilst some were introduced for sports, other<br />

species were introduced to control different<br />

pest purposes, for example snails (Cyprinus<br />

carpio), mosquitoes (Gambusia affinis) <strong>and</strong> weed<br />

(Hypophthalmichthys molitrix). Because of low<br />

wild fishery yields <strong>and</strong> an abundance of pristine<br />

cold rivers <strong>and</strong> springs in Lebanon, small trout<br />

farms have sprouted throughout the country.<br />

Moreover, this aquaculture industry has grown<br />

significantly in recent years, especially after<br />

returning expatriates have introduced new<br />

ideas <strong>and</strong> new approaches to aquaculture from<br />

around the world.<br />

Trends. Freshwater biodiversity is being<br />

impacted particularly by disturbances affecting<br />

water sources <strong>and</strong> rivers which weaken<br />

freshwater ecosystems <strong>and</strong> result in the<br />

elimination of weak species especially those<br />

sensitive to pollution. Drainage, pollution <strong>and</strong><br />

human interference have drastically changed<br />

the fresh water ecosystem <strong>and</strong> resulted in a high<br />

proportion of endangered species whereas<br />

overfishing has caused the extermination<br />

of some fish species from certain rivers<br />

(MOE/UNDP, FNR-CBD, 2009).<br />

Freshwater stream in Kfarhelda (Batroun)<br />

Chapter 5: <strong>Biodiversity</strong> <strong>and</strong> <strong>Forests</strong> 157

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