A5032822895- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Mercury impact and mitigation studies
- Water Quality and Pollution Assessment
- Heavy metals in environment
- Isotope Analysis in Ecology
- Microbial Community Ecology and Physiology
- Water Quality Monitoring Technologies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Environmental Toxicology and Ecotoxicology
- Oceanographic and Atmospheric Processes
- Marine Bivalve and Aquaculture Studies
- Water Quality Monitoring and Analysis
- Geology and Paleoclimatology Research
- Marine and fisheries research
- Coal and Its By-products
- Toxic Organic Pollutants Impact
- Membrane Separation Technologies
- Marine animal studies overview
- Soil and Water Nutrient Dynamics
- Marine Ecology and Invasive Species
- Mine drainage and remediation techniques
- Water-Energy-Food Nexus Studies
- Fish Biology and Ecology Studies
- Water Treatment and Disinfection
Israel Oceanographic and Limnological Research
2012-2021
National Institute of Oceanography
1998-2014
International University of Monaco
2005
Plymouth Marine Laboratory
2005
University of Bergen
2005
University of Leeds
1998
Bedford Institute of Oceanography
1998
Massachusetts Institute of Technology
1996
Although NO 3 is generally considered to limit primary productivity in most of the world’s oceans, previous studies have suggested Mediterranean Sea may be an exception. In this study southeastern Mediterranean, we found that all PO 4 3− was removed from upper water column during winter phytoplankton bloom core and boundary a warm‐core eddy, while measurable (0.3–0.6 µ M) − remained. The N : P (NO :PO ) ratio Cyprus eddy 27.4 slope linear portion vs. scattergram 25.5 with positive intercept...
Phosphate addition to surface waters of the ultraoligotrophic, phosphorus-starved eastern Mediterranean in a Lagrangian experiment caused unexpected ecosystem responses. The system exhibited decline chlorophyll and an increase bacterial production copepod egg abundance. Although nitrogen phosphorus colimitation hindered phytoplankton growth, phosphorous may have been transferred through microbial food web copepods via two, not mutually exclusive, pathways: (i) bypass compartment by uptake...
Summary The eastern Mediterranean Sea is one of the most extreme oligotrophic oceanic regions on earth in terms nutrient concentrations and primary productivity. Nitrogen fixation has been suggested to contribute high N : P molar ratios ∼28:1 found this region. Surprisingly, no molecular biological work performed situ assess whether 2 genes actually occur Sea, or determine which organisms are responsible for process. In study, we examined presence expression nitrogenase ( nifH ) upper water...
Mesopelagic prokaryotes (archaea and bacteria), which are transported together with nutrient-rich intermediate-water to the surface layer by deep convection in oceans (e.g., winter mixing, upwelling systems), can interact microbial populations. This interaction potentially affect production rates biomass of populations, thus play an important role marine carbon cycle oceanic sequestration. The Eastern Mediterranean Sea (EMS) is one most oligotrophic warm systems world's oceans, usually very...
Summary We report N 2 fixation rates measured from two stations monitored monthly off the Mediterranean coast of Israel during 2006 and 2007, along a transect to Crete in September 2008. Analyses time‐series data revealed expression nifH genes diazotrophs clusters I II, including cyanobacterial bloom‐formers Trichodesmium diatom‐ Richelia intracellularis associations. However, gene abundance were very low all size fractions (> 0.7 µm). Volumetric 15 uptake ranged below detection (∼36%...
Long-term trends in oxygen, salinity, and nutrients were followed the Southeastern Mediterranean (SEMS) deep waters from 2002 to 2020. Results show a net decrease oxygen since 2008 of −0.5 ± 0.1 μmol kg −1 yr bathypelagic depths (1,200–2,000 m). Multiannual variability levels superimposed this trend, is likely associated with variations thermohaline fluxes. The 2020 mean concentration 179.5 2.3 comparable pre-Eastern Transient (EMT) value. post-EMT signature clearly demonstrated both...
In winter 1995 the last major field work of Physical Oceanography Eastern Mediterranean (POEM) program was carried out, Levantine Intermediate Water Experiment (LIWEX). this study a thorough analysis is presented data set collected during three successive surveys in January, February, and March–April 1995. The overall result that basin shown to be site for multiple, different, water mass formation processes. Deep (LDW) formed Rhodes gyre, with preconditioning phase starting December 1994....