Field
surveys were planned to screen and document the new macroalgal species of
Al-Jabel Al- Akhdar coastline. Seven different sites (S1-S7) of the target area
were randomly and independently visited during remittent times between October
2012 and April 2013 for collecting samples. Of 12 new record algal species, 6
were recorded for the first time for the Libyan algal flora; 3 for Al-Jabel Al-
Akhdar coastline and 3 for the investigated area. These 6 newly record algal
species for the Libyan environment were Vaucheria piloboloides Thuret (Heterokontophyta), Penicillus dumetosus (Lamouroux) Blainville, Cladophora laetevirens (Dillwyn)
Kützing (Chlorophyta), Corallina pilulifera Postels & Ruprecht, Champia parvula (Agardh) Harvey and Thuretella
schousboei (Thuret)
F. Schmitz
(Rhodophyta). The physico-chemical analysis indicated that, Ch. parvula,
C. pilulifera, Bangia atropurpurea (Maertens
ex Roth) C. Agardh, Lithophyllum
incrustans
Philippi, Caulerpa racemosa  var. cylindracea (Sonder) Verlaque, Huisman et Boudouresque and Chaetomorpha
linum (O.F. Müller) Kützing were found to be restricted to polluted
seawater while Cl. laetevirens inhabited both sites (as a pelt in the
clean site and patches in polluted site).Water quality of the target area was
classified as clean (oligotrophic), ranging between mostly very clean (ultraoligotrophic)
in S4 and S7 and moderate polluted (mesoeutrophic) in S3 and S6. Most exotic species were found to belong to Rhodophyta. The present study recommended further surveys
to explore the newly Libyan algal species.