Oregon King Tides

The King Tide Photo Initiative is an international grass roots effort to document areas inundated by the highest projected winter tides.  It started in Australia, when in 2009, they were expected to experience their highest tide (called a king tide) in over 18 years. They organized a photo event to document the effect of the tide on low-lying areas and received more than 2,000 photographs. In 2010, British Columbia and Washington both began to document their king tides, and in 2011 Oregon and San Francisco Bay joined in the project. In 2012, the King Tide phenomena spread to the east coast and continues to expand today.  

Visit http://www.oregonkingtides.net/ to learn more.  

 

Marine Debris

In the United States, marine debris is defined as “any persistent solid material that is manufactured or processed and directly or indirectly, intentionally or unintentionally, disposed of or abandoned into the marine environment or the Great Lakes.” Oregon State law defines marine debris similarly. Marine debris is a growing global problem that harms the environment and commerce, and threatens navigation safety and human health.

 

Read more: Marine Debris

Sea Star Wasting Disease

In April 2014, Oregon began to experience a massive die-off of sea stars (Pisaster ochraceus) in near-shore environments. The cause of the depletion was named Sea Star Wasting Disease. This affliction was characterized by twisting arms, then deflation and/or lesions, lost arms, losing grip on substrate, and finally disintegration. A proximate cause of wasting was likely the “Sea Star associated Densovirus”, but the ultimate factors triggering the epidemic, if any, remain unclear. Although warm temperature has been proposed as a possible trigger, Sea Star Wasting Disease in Oregon populations increased with cool temperatures.

 

 

Read more: Sea Star Wasting Disease

Harmful Algal Blooms

Marine Algae (Pseudo-nitzschia) which produces demoic acidOver 300 species of phytoplankton have been implicated in causing “red tides”. While most “red tides” are harmless, over 80 phytoplankton species may produce toxins that are harmful to humans and marine life. Harmful Algal Blooms (HABs) have been responsible for closures of shellfish and crab fisheries off the Oregon coast in recent years, resulting in negative social and economic impacts for coastal communities and across the state. In response, the state of Oregon and the National Oceanic and Atmospheric Association have been engaged in efforts to research and monitor the potential causes and extent of HABs to better understand the risks. 

 

Follow the links below to learn more about HABs and their impacts

NOAA Harmful Algal Blooms Website

Oregon Department of Fish and Wildlife - Harmful Algal Blooms Website

Oregon Health Authority - Harmful Algal Blooms Website