Fishing fleets are altering the seafloor much like farmer's ploughs have altered the landscape, indicates a study of the effects of so-called bottom trawling on the continental slope off the Spanish Mediterranean coast.
Bottom trawlers drag nets and gear to capture fish, shrimp and other marine life along the seafloor, and previous research has called out this technique for stirring up sediment and destroying habitat.
This new study by a Spanish team looked down into deeper waters than typically studied, at the upper portion of the continental slope, which drops out toward the deep ocean and offers insight into how the deep-sea landscape changes.
Continued: http://www.livescience.com/22937-trawling-smooths-seafloor.html
Bottom trawlers drag nets and gear to capture fish, shrimp and other marine life along the seafloor, and previous research has called out this technique for stirring up sediment and destroying habitat.
This new study by a Spanish team looked down into deeper waters than typically studied, at the upper portion of the continental slope, which drops out toward the deep ocean and offers insight into how the deep-sea landscape changes.
Continued: http://www.livescience.com/22937-trawling-smooths-seafloor.html
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