European Directory of Marine Environmental Data (EDMED)

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General
Data set name

Distribution of zooplankton in the Lebanese coastal area

Data holding centreNational Center for Marines Sciences - NCMS
CountryLebanon  Lebanon
ProjectTracking long-term hydrological and biological change in the Lebanese marine waters.
Time period1965 - 2003
OngoingNo
Geographical area

Inshore and offshore Lebanese seawater

Observations 
Parameters

Phytoplankton taxonomic surface area in water bodies; Zooplankton feeding; Zooplankton defecation rates in the water column; Zooplankton wet weight biomass; Zooplankton dry weight biomass per unit volume of the water column; Zooplankton ash-free dry weight biomass per unit volume of the water column; Phytoplankton taxonomic volume in water bodies; Zooplankton taxonomy-related abundance per unit volume of the water column; Zooplankton non taxonomy-related abundance per unit volume of the water column; Zooplankton biovolume; Phytoplankton generic abundance in water bodies; Diatom taxonomy-related abundance per unit mass of sediment; Zooplankton and zoobenthos development stage parameters

Description 
Summary

Oceanographic data were obtained from ship cruises from 1965 until 2003 in the neritic and oceanic Lebanese waters (Levantine Basin). They include plankton community diversity, hydrographic parameters, namely temperature, salinity, dissolved oxygen, water transparency, chlorophyll a, nitrates and phosphates. The purpose of this work was to elaborate plankton dataset in relation to the hydrological conditions of the area. Spatial and temporal qualitative and quantitative distributions of the species are strongly correlated to seasonal variations of hydrological parameters. During our long-term survey we noticed certain hydrological changes in the Levantine Basin, manifested by increasing trend of temperature, and salinity, and by development of the Lessepsian migration. To date 400 phytoplankton species and about 1000 zooplankton taxa of which dozens of exotic species of Indo-Pacific origin are introduced, in the area, These ecological changes are mainly due to the regulation of the Nile by the Aswan High Dam in reducing freshwater outflow in the Mediterranean, and to the deepening of the Suez Canal in accelerating the northward current and facilitating migration process. The global climatic change may also contribute to these hydrological changes that affect the biodiversity of the entire Levantine Basin.

OriginatorsNational Center for Marines Sciences - NCMS
Availability 
OrganisationNational Center for Marines Sciences - NCMS
AvailabilityOrganisation
ContactDr. Nijad Kabbara (Database manager)
Address

National Center for Marines Sciences - NCMS
P.O. Box 189 Jounieh Harat Sakhr-Saddick & Matta Building, near Madisson Hotel Jounieh Lebanon
Jounieh

RL
Lebanon

Telephone+961 9 918 570
Facsimile+96 19 93 47 63
Emailnkabbara@cnrs.edu.lb
Administration 
Collating centreNational Center for Marines Sciences - NCMS
Local identifier51001002
Global identifier1930
Last revised2009-03-19