Ecosystem under pressure: ballast water discharge into Galveston Bay, Texas (USA) from 2005 to 2010

Marine Pollution Bulletin
Jamie L SteichenAntonietta Quigg

Abstract

Ballast water exchange processes facilitate the dispersal and unnatural geographic expansion of phytoplankton, including harmful algal bloom species. From 2005 to 2010, over 45,000 vessels (≈ 8000 annually) travelled across Galveston Bay (Texas, USA) to the deep-water ports of Houston (10th largest in the world), Texas City and Galveston. These vessels (primarily tankers and bulkers) discharged ≈ 1.2 × 10(8) metrictons of ballast water; equivalent to ≈ 3.4% of the total volume of the Bay. Over half of the ballast water discharged had a coastwise origin, 96% being from US waters. Galveston Bay has fewer non-indigenous species but receives a higher volume of ballast water discharge, relative to the highly invaded Chesapeake and San Francisco Bays. Given the magnitude of shipping traffic, the role of Galveston Bay, both as a recipient and donor region of non-indigenous phytoplankton species is discussed here in terms of the invasibility risk to this system by way of ballast water.

References

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Citations

Oct 13, 2015·Marine Pollution Bulletin·Jamie L Steichen, Antonietta Quigg
Dec 3, 2014·Marine Pollution Bulletin·Daolun FengDan Sun
Sep 2, 2014·Marine Pollution Bulletin·Jamie L SteichenAntonietta Quigg
Nov 19, 2020·Marine Pollution Bulletin·M Chase LawsonDavid N Hala
Jun 2, 2017·Water Research·Zhe Sun, Ernest R Blatchley

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