A5083817229- Coral and Marine Ecosystems Studies
- Marine Sponges and Natural Products
- Marine and fisheries research
- Marine and coastal plant biology
- Aquaculture disease management and microbiota
- Marine Biology and Ecology Research
- Marine Ecology and Invasive Species
- Microbial bioremediation and biosurfactants
- Geochemistry and Geologic Mapping
- Ocean Acidification Effects and Responses
- Paleontology and Stratigraphy of Fossils
- Microbial Community Ecology and Physiology
- Environmental Toxicology and Ecotoxicology
- Fish Biology and Ecology Studies
- Fish Ecology and Management Studies
- Fish biology, ecology, and behavior
- Atmospheric and Environmental Gas Dynamics
- Heavy metals in environment
- Marine Biology and Environmental Chemistry
- Marine Invertebrate Physiology and Ecology
- Ichthyology and Marine Biology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Crustacean biology and ecology
- Coastal and Marine Management
- Marine and coastal ecosystems
University of Jordan
2012-2024
University of Miami
2023
Yarmouk University
2007
Al al-Bayt University
2005-2007
Max Planck Institute for Marine Microbiology
2002-2004
Abstract Shallow warm-water and deep-sea cold-water corals engineer the coral reef framework fertilize communities by releasing mucus, a source of dissolved organic matter (DOM). By transforming DOM into particulate detritus, sponges play key role in transferring energy nutrients to higher trophic levels on Caribbean reefs via so-called sponge loop. Coral mucus may be major for loop, but uptake has not been demonstrated. Here we used laboratory stable isotope tracer experiments show transfer...
Summary Corals and macroalgae release large quantities of dissolved organic matter ( DOM ), one the largest sources produced on coral reefs. By rapidly taking up transforming it into particulate detritus, reef sponges are proposed to play a key role in transferring energy nutrients higher trophic levels via recently discovered sponge loop. released by corals algae differs quality composition, but influence these different recycling loop has not been investigated. Here, we used stable isotope...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 589:85-96 (2018) - DOI: https://doi.org/10.3354/meps12443 Reef sponges facilitate transfer of coral-derived organic matter their associated fauna sponge loop Laura Rix1,*, Jasper M. de Goeij2, Dick van Oevelen3, Ulrich Struck4, Fuad A. Al-Horani5, Christian Wild6,**, Malik S. Naumann6,7,** 1GEOMAR Helmholtz...
Abstract Two of the largest crude oil-polluted areas in world are semi-enclosed Mediterranean and Red Seas, but effect chronic pollution remains incompletely understood on a large scale. We compared influence environmental geographical constraints anthropogenic forces (hydrocarbon input) bacterial communities eight geographically separated sites along coastlines Seas. The differences community compositions their biodegradation potential were primarily associated (P < 0.05) with both...
We investigated the hypothesis that sulfate reduction rather than oxygenic photosynthesis promotes calcification in a hypersaline microbial mat by increasing ion concentration product: ICP 5 [Ca2+] X [CO32-]. Pore-water 3 calcium profiles directly measured with microsensors show photic zone decreased illuminated mats and increased slightly dark mats. High pH values of resulted higher carbonate concentrations (2.25 mmol L-1) (0.75 L-1), although dissolved inorganic carbon (DIC) pore-water...
Single polyps of Galaxea fascicularis were fixed to glass vials with underwater epoxy resin.After regeneration into microcolonies they used for microsensor measurements photosynthesis and calcification under different incubating temperatures.Gross was found highest at temperatures 23 26ºC (ca.0.022 mole O 2 m -3 s -1 ), close the ambient temperature (i.e.26ºC).At 35°C, gross irreversibly inhibited as bleached.The net rapidly decreased became negative higher than 29ºC.Profiles Ca 2+ showed a...
ABSTRACT Stromatolites date back some 3.5 billion years and constitute the most common conspicuous fossils through Proterozoic. These organosedimentary structures decreased dramatically in diversity abundance by late Neoproterozoic, a phenomenon often ascribed to destructive grazing newly evolved metazoans. We investigated concurrent processes of microbial calcification metazoan bioerosion one few locations (Rio Mesquites, Cuatro Ciénegas, Coahuila, Mexico) where living freshwater...
SUMMARY Many stony coral-dwelling fishes exhibit adaptations to deal with hypoxia among the branches of their hosts; however, no information exists on respiratory ecophysiology obligate fish associates non-coral organisms such as sea anemones and sponges. This study investigated metabolic behavioral interactions between two-band anemonefish (Amphiprion bicinctus) bulb-tentacle (Entacmaea quadricolor) at night. We measured net dark oxygen uptake (, μmol O2 h−1) fish–anemone pairs when...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 533:79-92 (2015) - DOI: https://doi.org/10.3354/meps11383 Seasonality in dinitrogen fixation and primary productivity by coral reef framework substrates from northern Red Sea Laura Rix1,*, Vanessa N. Bednarz1, Ulisse Cardini1, Nanne van Hoytema1, Fuad A. Al-Horani2, Christian Wild1,3, Malik S. Naumann1 1Coral...
Introduction Climate change, and the increase in sea surface temperature, is exacerbating ocean deoxygenation because of inherent property seawater to sequester less dissolved gas, such as oxygen, at warmer temperatures. While most coral reef studies focus on effects thermal stress acidification, few acknowledge threat hypoxia. Hypoxia traditionally defined 6.3 kPa (2 mg L-1 O2), however, a universal hypoxia threshold not useful given vast range responses among marine organisms. The...
Abstract The Jordanian coast of the Gulf Aqaba was intensively surveyed during year 2004 to assess health coral reefs in Jordan. Permanent line transects were laid on reef flat, at depths 8 m and 15 eight sites, selected benthos components studied. It found that distribution hard corals increases gradually from north south deep had highest coverage corals. On other hand, soft showed sites where industrial activities are taking place. Coral death low along is comparable surveys made previous...
Abstract The distribution and abundance of seagrass communities have been investigated from three sites along the Jordanian coast Gulf Aqaba. results showed that Halophila stipulacea has widest in all sites. However, species Halodule uninervis ovalis were less abundant found at Tala Bay site only shallow depths. distributions increased with increasing depth up to 12 m, thereafter declined. some areas, is completely absent due extensive human activities. On average, highest cover this study...
Abstract Human stresses on coral reefs have increased to levels threatening their existence a global scale. In the Gulf of Aqaba, many coastal been damaged by human activities, while others are threatened. To mitigate such negative impacts, we constructed state-of-the-art artificial reef and deployed it in Aqaba December 2008. After 3.5 years, data obtained shown extensive recruitment rates reef. This was suggested be due high structural complexity new AR design. The newly created habitat is...