Harvesting of small fish species should be cut: study

(PhysOrg.com) -- New research on the fishing of small fish species near the bottom of their food chains suggests harvesting at levels previously thought to be sustainable could have devastating effects on some marine ecosystems. ...

A Zen discovery: Unrusted iron in ocean

Iron dust, the gold of the oceans and rarest nutrient for most marine life, can be washed down by rivers or blown out to sea or - a surprising new study finds - float up from the sea floor. The discovery, published online ...

Hydrothermal mercury: The natural story of a contaminant

An international team of researchers including scientists from the GEOMAR Helmholtz Center for Ocean Research Kiel has produced the first global estimate of mercury emissions from hydrothermal sources at mid-ocean ridges ...

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