Temperate urchins clear space for corals

Bioerosion by pit-forming, temperate-reef sea urchins: History, rates and broader implications

Sea urchins are dominant members of rocky temperate reefs around the world. They often occur in cavities within the rock, and fit so tightly, it is natural to assume they sculpted these "pits." However, there are no experimental data demonstrating they bore pits. If they do, what are the rates and consequences of bioerosion to nearshore systems? We sampled purple sea urchins, Strongylocentrotus...

application of open cooling tower with radiant cooling for office space conditioning in temperate climate

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First Evidence of an Important Organic Matter Trophic Pathway between Temperate Corals and Pelagic Microbial Communities

Mucus, i.e., particulate and dissolved organic matter (POM, DOM) released by corals, acts as an important energy carrier in tropical ecosystems, but little is known on its ecological role in temperate environments. This study assessed POM and DOM production by the temperate coral Cladocora caespitosa under different environmental conditions. The subsequent enzymatic degradation, growth of proka...

Vertical Illuminance Measurement for Clear Skies in Tehran

A Fatal Switch for Corals?

In the late summer of 2005, abnormally warm ocean temperatures led to the most severe coral bleaching event ever documented in the northeast Caribbean. Algae living in symbiotic harmony with their animal hosts were expelled, leaving great expanses of white, or so-called bleached, coral reef. In the 12 months following these high temperatures, disease incidence on corals rose sharply. Within two...