Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

New records of marine algal species collected from some localities of Al-Jabel Al-Akhdar coastline, Libya.

Abstract

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.