The Impact of Available Nitrogen Deficiency on Long-Term Changes in the Lake Kinneret Ecosystem - Open Journal of Ecology

Open Journal of Ecology

Volume 5, Issue 4 (April 2015)

ISSN Print: 2162-1985 ISSN Online: 2162-1993

Google-based Impact Factor: 1.33 Citations h5-index & Ranking

The Impact of Available Nitrogen Deficiency on Long-Term Changes in the Lake Kinneret Ecosystem ()

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Download as PDF (Size: 840KB) PP. 147-157

DOI: 10.4236/oje.2015.54013 3,121 Downloads 3,891 Views Citations

Author(s)

Moshe Gophen^*

Affiliation(s)

Migal-Scientific Research Institute, Kiryat Shmone, Israel.

ABSTRACT

Lake Kinneret Ecosystem structure has undergone significant modification since early 1990s. Scientists have indicated several causative factors for those long-term changes. The sharp decline of Peridinium and the upset of Cyanobacteria are the major changes. Several options were suggested as the reason for those changes. Among others are the followings: high amplitude of water level fluctuations, global warming, fisheries management, salts diversion, onset and offset of beach vegetation, anthropogenic operations in the drainage basin, allelopathic trait of algal competition, etc. It was suggested that the reduction of ammonia supply from the Hula Valley resulted in the conversion of the land from lake and swamps covered to agriculture followed by elimination of treated domestic sewage and fishponds effluents enhanced deficiency of available N in Lake Kinneret. This paper evaluates the impact of available Nitrogen decline which enhanced Kinneret ecosystem modifications.

KEYWORDS

Kinneret, Peridinium, Ammonia, Hula Valley

Share and Cite:

Gophen, M. (2015) The Impact of Available Nitrogen Deficiency on Long-Term Changes in the Lake Kinneret Ecosystem. Open Journal of Ecology, 5, 147-157. doi: 10.4236/oje.2015.54013.

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