Ocean bank

July 5, 2012, 3:53 am
Content Cover Image

Grand Banks of Newfoundland crosscut by two ocean currents. CC-sa-2.5

In oceanography, an ocean bank is an undersea feature defined by the International Hydrographic Organization (IHO) as “an elevation of the sea floor, over which the depth of water is relatively shallow, but sufficient for safe surface navigation."

Upwelling phenomena

Ocean banks, sometimes called fishing banks, can manifest as a shoal or the top of an underwater hill. Similar to continental slopes, ocean banks slopes can upwell as tidal, as other sea currents intercept these upwellings, frequently resulting in nutrient rich currents. Therefore, some larger banks, such as the Dogger Bank or the Grand Banks of Newfoundland, are among the richest fishing grounds in the world; however, in the last decades the Grand Banks of Newfoundland are significantly overfished, so that some fisheries such as cod have virtually collapsed.

This article is written at a definitional level only. Authors wishing to expand this entry are inivited to expand the present treatment, which additions will be peer reviewed prior to publication of any expansion.

Further reading

 

 

Glossary

Citation

Baum, S. (2012). Ocean bank . Retrieved from http://www.eoearth.org/view/article/150410

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